CCV Oil Separator System for BMW 5 Series E60 (2004-2010)

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BMWs oil separator and crankcase ventilation system is excellent at what it does when properly maintained. Always inspect any visible hoses when you are under the hood and follow the manufacturers replacement schedule.
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Genuine BMW Crank Case Fasteners - N54 3.0L, N52 3.0L, N55 3.0L ...
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Genuine BMW - Corporate Logo
T#:30544
Part#: 11110392552
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$ 41.99 USD
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$ 42.99

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Genuine BMW Set Of Alu. Screws Crank Case
This item fits the following BMW Chassis:
E82 1M Coupe,E70 X5,E71 X6,E82,E83 X3,E85 Z4,E86 Z4,E89 Z4,E90,E92,E93,F01,F02,F06,F10,F12,F13,F15,F16,F22,F25 X3,F26 X4 X4,F30,F32,F33,F34,F36,F80 M3,F82 M4,F83

Fits BMW Engines including:
N51,N52,N52N,N54,N54T,N55,S55

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Genuine BMW PCV Non-return Valve - E9X M3, E6X M5 M6
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Genuine BMW - Corporate Logo
T#:36640
Part#: 11617836553
In Stock
14% off MSRP $ 63.76

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$ 55.03 USD
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14% off MSRP
$ 63.76

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The PCV system removes engine blow-by gases and flushes the crankcase with fresh air. PCV system problems result in numerous and sometimes severe problems including multiple oil leaks, contamination of multiple sensors and catalytic converters, deposit build-up in the air intake passages, and failed emissions tests.
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E82 135i N54, E9X 335 N54, E60 535 Vargas Upgraded PCV Valve ...
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Vargas Turbo Technologies - Corporate Logo
T#:389684
Part#: VTT-N54-PCV
In Stock
$ 67.99 USD
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The crankcase oil vent system on the N52/N54 is one of its weakest and cheaply designed systems. We see crankcase vent issues on even stock engines but with more boost the problems are exponential. This Vargas upgraded PCV valve, and an oil catch can, are what the N54 engine needs and may alleviate most of your oil and boost leak issues. The PCV valve is supposed to let oil either return to the oil pan or pass through the intake manifold and get burned up in the combustion chamber. However, BMW used a weak plastic vent valve that doesn't seal well when under boost. Instead of  closing and venting the oil out of the intake, it's forced through this valve and into the intake and coating your valves with oil residue and carbon. Most boost equals more oil forcing its way by. This upgraded N54 PCV valve uses higher grade materials, including aluminum, to provide a better seal and prevent oil from entering the intake. It's an easy install and a must-have item when considering any turbo work.
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ECS Tuning N54 PCV Valve Upgraded - BMW N54 3.0L
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ECS - Corporate Logo
T#:4154602
Part#: 090745ECS09
Back Ordered
Sale - Save 35% $ 102.99

This product was last offered at the strikethrough price on
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$ 66.94 USD
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The OEM plastic Positive Crankcase Ventilation (PCV) valve does not hold pressure well, even when brand new. This means that when you are in boost conditions, the highly pressurized PCV valve leaks charged air back into the crankcase. Depending on the condition of your PCV valve, this can range from irritating to dangerous. Additionally, if your valve cover is cracked, loose, or has a bad gasket, you are likely experiencing a pressure leak either internally or externally, as well as potential oil loss issues. ECS Tuning now offers a solid aluminum PCV valve upgrade designed to address these issues by preventing leaks and outlasting the standard BMW-designed PCV! The internal components of this aluminum PCV valve fit tighter than the OE design and can withstand significantly more abuse, perfect for high mileage N54s, N54s that have been tuned, or N54s with upgraded turbos (larger twin or big single turbo builds). This may not be your last PCV Valve, but it will certainly outlast both the Genuine BMW and other common aftermarket alternatives!
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Angle Connector With Heating Element
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MTC - Corporate Logo
T#:556608
Part#: 11618638014
Ships in 3 Business Days
$ 39.99 USD
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Being not only a connecting piece for the PCV line to the intake manifold but a heating element to prevent blockage it is possible to short out this piece. Easy to replace, prevent damage by getting a new piece today.
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Universal 10AN ORB To 3/8" Barb
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Radium Engineering - Corporate Logo
T#:31522993
Part#: RAD20-0530
In Stock
$ 37.99 USD
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Genuine BMW Upper Oil Separator Vent Tube
For use in cold climates
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Genuine BMW - Corporate Logo
T#:13028
Part#: 11617533399
In Stock
2% off MSRP $ 42.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 41.99 USD
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2% off MSRP
$ 42.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 41.99 USD
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GENUINE BMW CONNECTING LINE:111060
Oil Separator Valve
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Bremmen Parts - Corporate Logo
T#:8677203
Part#: 11617531423
In Stock
Sale - Save 4% $ 69.99

This product was last offered at the strikethrough price on
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$ 67.20 USD
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Sale - Save 4%
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Genuine BMW Crankcase Vent Hose - E60 M5 E63 M6 E64 M6
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Genuine BMW - Corporate Logo
T#:36664
Part#: 11617838897
In Stock
9% off MSRP $ 42.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 39.99 USD
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$ 42.99

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$ 39.99 USD
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Genuine BMW Vent Hose - Zyl. 1-5
This item fits the following BMW Chassis:
E60 M5,E63 M6,E63

Fits BMW Engines including:
S85


Genuine BMW Pressure Regulator Valve Repair Kit
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Genuine BMW - Corporate Logo
T#:6617
Part#: 11127547058
In Stock at Vendor
$ 253.99

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$ 200.99 USD
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Genuine BMW Repair Kit, Pressure Regulating Valve
This item fits the following BMW Chassis:
E53 48IS,E53 X5,E63,E65,E70 X5 X5

Fits BMW Engines including:
N62,N62N

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Genuine BMW Cold Climate Crankcase Pressure Regulator Valve
Superior performance for both warm and cold climates
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Genuine BMW - Corporate Logo
T#:12455
Part#: 11617533400
Ships in 1 day
3% off MSRP $ 119.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 116.99 USD
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$ 119.99

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GENUINE BMW PRESSURE REGULATING VALVE:117059

We sell this part as part of a larger kit that includes all the hoses required BMW Crankcase Vent, PCV, and Oil Separator Systems
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Genuine BMW Crankcase Vent Hose - E60 M5 E63 M6 E64 M6
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Genuine BMW - Corporate Logo
T#:36665
Part#: 11617838898
Ships in 1 day
4% off MSRP $ 45.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 43.99 USD
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4% off MSRP
$ 45.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 43.99 USD
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Genuine BMW Vent Hose - Zyl. 6-10
This item fits the following BMW Chassis:
E60 M5,E63 M6,E63

Fits BMW Engines including:
S85



Genuine BMW Crankcase Ventilation Hose
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Genuine BMW - Corporate Logo
T#:367705
Part#: 11611432559
Ships in 1 day
2% off MSRP $ 47.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 46.99 USD
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2% off MSRP
$ 47.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 46.99 USD
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Crankcase Pressure Regulator Valve
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5X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Hengst - Corporate Logo
T#:22064591
Part#: AS830M
In Stock
Sale - Save 27% $ 35.99

This product was last offered at the strikethrough price on
05-03-2026

$ 26.31 USD
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Sale - Save 27%
$ 35.99

This product was last offered at the strikethrough price on
05-03-2026

$ 26.31 USD
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BMW has an ongoing issue with oil separators freezing in cold weather if driving is done before the vehicle is fully warmed up. There is often a howling noise followed by numerous oil leaks. The crankcase breather valve is used to purge the oil vapor from the engine block into the valve cover. However, sometimes condensation can cause it to freeze, causing the entire oil separator system to fail, crack, and disintegrate. Replace all the components of the oil separator system together to prevent damage to all the aspects of your engine. As long as you have everything off, you can rest assured that new parts will last and be reliable.
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Genuine BMW Crankcase Ventilation Dipstick Hose
For use in cold climates
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Genuine BMW - Corporate Logo
T#:348228
Part#: 11157532629
In Stock
3% off MSRP $ 39.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 38.99 USD
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$ 39.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 38.99 USD
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Billet 1/2" Check Valve - N54
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Vargas Turbo Technologies - Corporate Logo
T#:557954
Part#: VTT-CHECK-1
In Stock
$ 36.99 USD
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$ 36.99 USD
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Vargas Turbo has you covered when you are installing a custom turbo setup. With all of the adapters you need and all the valves necessary, the only real limiting factor is your imagination!

This is a 1/2" (fits -8AN hos perfectly as well) CNC Billet check valve that can be used for a variety of uses including a vacuum/boost check valve when removing the stock PCV system, and still wanting to run the vacuum to the crankcase. Rated at over 100 psi, with a cracking psi of .25psi.

This part fits the following BMW engines:
2006-2012 N54

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Febi "Cold Climate" Crankcase Pressure Regulator Valve - E3...
Superior performance for both warm and cold climates
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Febi - Corporate Logo
T#:381796
Part#: 11617533400
Ships in 1 Business Day
$ 72.99

This product was last offered at the strikethrough price on
05-07-2026

$ 61.99 USD
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$ 61.99 USD
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Commonly referred to as the "oil separator" or PCV
VTT CNC ORB Plug - -10AN
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Vargas Turbo Technologies - Corporate Logo
T#:642075
Part#: VTT-10ORB
Ships in 10 Business Days
$ 23.99 USD
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$ 23.99 USD
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Billet Check Valve - 10 Barb
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Vargas Turbo Technologies - Corporate Logo
T#:597641
Part#: VTT-CHECK-2
Ships in 2 Business Days
$ 36.99 USD
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$ 36.99 USD
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Vargas Turbo has you covered when you are installing a custom turbo setup. With all of the adapters you need and all the valves necessary, the only real limiting factor is your imagination!
Flapper Delete Fitting - N54
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Vargas Turbo Technologies - Corporate Logo
T#:557962
Part#: VTT-FLAPPER-DELE
Ships in 10 Business Days
$ 57.99 USD
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$ 57.99 USD
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Vargas Turbo has you covered when you are installing a custom turbo setup. With all of the adapters you need and all the valves necessary, the only real limiting factor is your imagination!

The VTT PCV Flapper delete is used to get rid of the factory flapper, and add a -10 fitting on N54 powered vehicles. This will allow you to run a single or dual external catch can, or your own custom set up.

This fitting is made from 6061-T6 aircraft aluminum anodized black and comes with O-ring, and a stainless steel holding clip.

This part fits the following BMW engines:
2006-2012 N54

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Genuine BMW Crankcase Ventilation Hose
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Genuine BMW - Corporate Logo
T#:32283
Part#: 11157567802
Ships in 1 day
3% off MSRP $ 162.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 157.99 USD
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$ 162.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 157.99 USD
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Genuine BMW Return Pipe -
This item fits the following BMW Chassis:
E90

Fits BMW Engines including:
N52


Genuine BMW Crankcase Ventilation Return Pipe
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Genuine BMW - Corporate Logo
T#:22213
Part#: 11157567801
Ships in 1 day
5% off MSRP $ 184.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 175.99 USD
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5% off MSRP
$ 184.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 175.99 USD
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Genuine BMW Return Pipe -
This item fits the following BMW Chassis:
E85,E86,E90

Fits BMW Engines including:
N52

Genuine BMW Crankcase Ventilation Hose
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Genuine BMW - Corporate Logo
T#:367590
Part#: 11157532649
Ships in 1 day
3% off MSRP $ 39.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 38.99 USD
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3% off MSRP
$ 39.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 38.99 USD
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Genuine BMW Crankcase Vent Hose - Cylinders 1-4 - N62 4.4L up to 11/2...
For vehicles with production date up to 11/2006
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Genuine BMW - Corporate Logo
T#:36523
Part#: 11617547185
Ships in 1 day
4% off MSRP $ 51.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 49.99 USD
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$ 51.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 49.99 USD
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Genuine BMW Vent Pipe - Zyl. 1-4
This item fits the following BMW Chassis:
E53 48IS,E53 X5,E63,E65

Fits BMW Engines including:
N62



Genuine BMW Crankcase Ventilation Hose
For use in cold climates
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Genuine BMW - Corporate Logo
T#:19233
Part#: 11617533398
Ships in 1 day
2% off MSRP $ 47.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 46.99 USD
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$ 47.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

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Genuine BMW ENGINE VENT PIPE
Genuine BMW Upper Oil Separator Vent Tube
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Genuine BMW - Corporate Logo
T#:7025
Part#: 11617504535
Ships in 1 day
2% off MSRP $ 42.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 41.99 USD
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2% off MSRP
$ 42.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 41.99 USD
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Genuine BMW Connecting Line -
This item fits the following BMW Chassis:
E39,E46,E53 X5,E83 X3,E85

Fits BMW Engines including:
M52,M54

Crankcase Oil Separator - E90 325i/330i, E60 525i/530i, E85 Z4 3.0i/3...
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Genuine BMW - Corporate Logo
T#:13027
Part#: 11617531423
Ships in 1 day
7% off MSRP $ 148.99

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$ 138.99 USD
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$ 148.99

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The BMW N52 engine was deisgned with a crankcase vent system that relies on a heated oil separator valve to separate vapor from the liquid oil. Under ideal circumstances, the oil vapor would pass back into the intake and get burned up during normal combustion. The liquid oil would follow a path back down into the oil pan and be reused. This system is environmentally friendly but plagued with problems. The heating elements can fail or solid oil and carbon particles can block the oil separator valve. With no escape, the oil will continue to pool and collect in the valve cover or make its way into the combustion chamber leading to excessive oil consumption, blue smoke from the exhaust, idle and running issues. These issues are worse in colder climates where the freezing temperatures create a oil sludge condition that is impossible to clear. Thankfully, the CCV is replaceable on the early N52 engines (2006) and should be inspected during a major service and any time the valve cover is off. Oil can also back up into the throttle body, which is easier to check than the oil separator itself. Later N52 engines do not have a serviceable oil vent as it is integrated into the valve cover and not a separate part.

The oil separator can be replaced on its own but for a complete service we also recommend replacing the oil separator hoses and cleaning the valve cover. Any valve cover or intake manifold work should include a new oil separator valve.

This item fits the following BMWs:
2006-2011 E90 BMW 325i 325xi 330i 330xi - Sedan
2006-2012 E91 BMW 325xi - Wagon
2006-2007 E60 BMW 525i 525xi 530i 530xi
2006-2008 E85 BMW Z4 3.0i Z4 3.0si
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Genuine BMW Oil Separator Vent Hose
For vehicles with production date from 10/2005
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Genuine BMW - Corporate Logo
T#:348665
Part#: 11617559530OE
Ships in 2 Business Days
10% off MSRP $ 77.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 69.99 USD
Free Shipping on orders $49 and up
10% off MSRP
$ 77.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 69.99 USD
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Genuine BMW Crankcase Vent Hose - E60 M5 E63 M6 E64 M6
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Genuine BMW - Corporate Logo
T#:36649
Part#: 11617836946
Ships in 1 day
5% off MSRP $ 57.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 54.99 USD
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5% off MSRP
$ 57.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 54.99 USD
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Genuine BMW Vent Hose - Zyl. 6-10
This item fits the following BMW Chassis:
E60 M5,E63 M6,E63

Fits BMW Engines including:
S85

Genuine BMW Crankcase Vent Hose - Cylinders 5-8 - N62 4.4L up to 11/2...
For vehicles with production date up to 11/2006
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:36524
Part#: 11617547186
Ships in 1 day
4% off MSRP $ 67.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 64.99 USD
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4% off MSRP
$ 67.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 64.99 USD
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Genuine BMW Vent Pipe - Zyl. 5-8
This item fits the following BMW Chassis:
E53 48IS,E53 X5,E63,E65

Fits BMW Engines including:
N51,N62


PCV Valve Seperator
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Bremmen Parts - Corporate Logo
T#:15511828
Part#: 11617533400
In Stock
Sale - Save 1% $ 44.99

This product was last offered at the strikethrough price on
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$ 44.51 USD
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Sale - Save 1%
$ 44.99

This product was last offered at the strikethrough price on
05-03-2026

$ 44.51 USD
Free Shipping on orders $49 and up
BMW has an ongoing issue with oil separators freezing in cold weather if driving is done before the vehicle is fully warmed up. There is often a howling noise followed by numerous oil leaks. The crankcase breather valve is used to purge the oil vapor from the engine block into the valve cover. However, sometimes condensation can cause it to freeze, causing the entire oil separator system to fail, crack, and disintegrate. Replace all the components of the oil separator system together to prevent damage to all the aspects of your engine. As long as you have everything off, you can rest assured that new parts will last and be reliable. Don't forget to order a valve cover gasket to make your separator change easier.
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Crankcase Oil Separator and Vent Hose Kit - E90 325xi/330xi, E60 525x...
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Turner Motorsport - Corporate Logo
T#:221961
Part#: TMS221961
Ships in 1-2 days
$ 479.99 USD
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$ 479.99 USD
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The BMW N52 engine was deisgned with a crankcase vent system that relies on a heated oil separator valve to separate vapor from the liquid oil. Under ideal circumstances, the oil vapor would pass back into the intake and get burned up during normal combustion. The liquid oil would follow a path back down into the oil pan and be reused. This system is environmentally friendly but plagued with problems. The heating elements can fail or oil and carbon particles can block the oil separator valve. With no escape, the oil will continue to pool and collect in the valve cover or make its way into the combustion chamber leading to excessive oil consumption, blue smoke from the exhaust, idle and running issues. These issues are worse in colder climates where the freezing temperatures create an oil sludge condition that is impossible to clear. The plastic hoses can become brittle and crack which leads to vacuum leaks and oil leaks. Thankfully, the CCV is replaceable on the early N52 engines (2006 and some 2007 models) and should be inspected during a major service and any time the valve cover is off. Oil can also back up into the throttle body, which is easier to check than the oil separator itself. Later N52 engines do not have a serviceable oil vent as it is integrated into the valve cover and not a separate part.

This is a kit containing the oil separator, the vent hoses, and the intake manifold gaskets that are done during a typical oil separator replacement. Complete kit includes:
  • 11617531423, Genuine BMW oil separator
  • 11617559530, vent hose
  • 11157522931, oil separator hose
  • 11157567802, return hose
  • 11157537701, extraction hose
  • 11617547242, intake manifold gaskets (set of 6)
    The intake manifold must be removed to access the oil separator so new profile gaskets are included. We also recommend (but not required) a new oil separator fitting on the intake manifold because it's one of the heated elements that vaporizes the oil as it enters the intake.

    The oil separator can be replaced on its own but for a complete service we also recommend replacing the oil separator hoses and cleaning the valve cover. Any valve cover or intake manifold work should include a new oil separator valve.

    This kit fits the following BMWs:
    10/2005+ E90 BMW 325xi 330xi - Sedan
    10/2005+ E91 BMW 325xi - Wagon
    10/2005+ E60 BMW 525xi 530xi
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    Oil Separator Valve
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    Hengst - Corporate Logo
    T#:22064583
    Part#: AS815M
    Ships on Jun 26, 2026
    $ 64.99 USD
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    BMW has an ongoing issue with oil separators freezing in cold weather if driving is done before the vehicle is fully warmed up. There is often a howling noise followed by numerous oil leaks. The crankcase breather valve is used to purge the oil vapor from the engine block into the valve cover. However, sometimes condensation can cause it to freeze, causing the entire oil separator system to fail, crack, and disintegrate.
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    Crankcase Oil Separator Valve - E46 E39 E60 X3 X5 Z3 Z4
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    Febi - Corporate Logo
    T#:2855
    Part#: 11617501566
    Ships on Sep 1, 2026
    $ 48.99 USD
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    $ 48.99 USD
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    This Crankcase Oil Separator Valve fits BMWs with the M52tu or M54 6 cylinder engine including E46 323i 325i 328i 330i E39 525i 528i 530i E60 525i 530i X3 2.5i 3.0i X5 3.0i Z3 2.5 2.8 3.0i Z4 2.5i 3.0i. It is fairly common for this valve to become plugged with sludge which can create rough idle and excessive oil consumption.
    Since the late 1800’s Febi has been fabricating replacement metal parts. This history is self evident in the quality and vast amount of applications they service. With more than 34,000 repair solutions for cars and commercial vehicles you can be sure Febi has you covered.

    This item fits the following BMWs:
    1999-2005 E46 BMW 323i 323ci 328i 328ci 330i 330ci 330xi
    1999-2005 E46 BMW 325i 325ci 325xi - only with M54 engine
    1999-2003 E39 BMW 525i 528i 530i
    2004-2005 E60 BMW 525i 525xi 530i 530xi
    2004-2006 E83 BMW X3 2.5i X3 3.0i
    2000-2006 E53 BMW X5 3.0i
    1999-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8i Z3 3.0i
    2003-2006 E85 BMW Z4 2.5i Z4 3.0i
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    FTP Motorsport PCV Valve Upgraded Replacement - N54
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    FTP Motorsport - Corporate Logo
    T#:583063
    Part#: SG84036
    Special Order: No Guaranteed ETA
    $ 60.00 USD
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    $ 60.00 USD
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    The OEM plastic PCV valve does not hold pressure well even when brand new. What this means is that when the turbochargers are making boost, pressurized air can become forced backwards through the valve and back into the crankcase. Depending on the condition of your PCV valve this can range from irritating to dangerous as a pressurized case can cause all sorts of issues. Additionally, if your valve cover is cracked due to age or has a bad gasket you are more than likely experiencing a pressure leak either internally or externally. These two features can cause even a low-mileage N54 to run like a tired elephant, sometimes even unlocking a special bonus function known as "Limp Mode". The solution is to replace any failed components and upgrade the PCV valve to something more capable withstanding the abuse of a turbocharged environment. FTP Motorsport has you covered with this solid aluminum valve assembly. It is essentially the same thing that came in your car from the factory, made out of aluminum. The internal components have also been made to fit tighter and outlast the life of an off the shelf replacement. No, this won't be the very last PCV valve you buy, but it will most certainly alleviate a lot of headaches common to N54 owners. And if you're tuned, big twin or single swapped you need one of these yesterday.
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    Upgraded Silicone CCV Hose - (11157522931) - N52
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    Turner Motorsport - Corporate Logo
    T#:46203577
    Part#: 058973LA02
    In Stock
    $ 99.99 USD
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    $ 99.99 USD
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    Due to weak plastic construction, the factory plastic crankcase ventilation breather hose is known to fail. After years of exposure to piping-hot engine bay temperatures and chemical-laden oil vapors, the corrugated plastic tubing can crack, crumble, or fail altogether.

    We set out to bulletproof your N52 CCV system with a durable silicone breather hose, designed to provide a comprehensive upgrade and permanent replacement for the factory plastic hose. By replacing the flimsy, heat-hardened OEM plastic hose with a four-ply fluorosilicone hose, you'll experience peace of mind knowing your N52 is free from the inevitable return of oil leaks, vacuum leaks, and drivability concerns that would have been.

    This breather hose is found at the front of the engine, and is used to connect the oil separator to the valve cover. It replaces OEM part number 11157522931.

    Features:

    Silicone construction ensures a durable replacement that is sure to outlast OE plastic
    Designed as a direct replacement for the factory breather hose
    Retains heating function and OE electrical connector
    Design:

    Four-ply wire-reinforced fluorosilicone hose is designed to resist degradation due to exposure to oil vapors
    O-rings are pre-installed in OE connectors for a lasting seal
    Includes pre-installed zinc-coated hose clamps for durability and corrosion resistance
    Product Development:

    Our Silicone CCV Hose Upgrade was designed, engineered, tested, and quality inspected by our Research and Development team in our Wadsworth, Ohio, facility. We strive for the highest level of precision and quality through leading-edge product development technology, including FARO laser scanning for reverse engineering and quality inspection, SolidWorks 3D CAD modelling, rapid prototyping utilizing our in-house 3D printer, and rigorous long-term product testing.

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    Bremmen Crankcase Ventilation Hose - E39 E53 E60 E83 E46
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    Bremmen Parts - Corporate Logo
    T#:640147
    Part#: 11611432559
    In Stock
    Sale - Save 22% $ 23.99

    This product was last offered at the strikethrough price on
    05-03-2026

    $ 18.76 USD
    Free Shipping on orders $49 and up
    Sale - Save 22%
    $ 23.99

    This product was last offered at the strikethrough price on
    05-03-2026

    $ 18.76 USD
    Free Shipping on orders $49 and up
    Crankcase Vent Hose - From Valve Cover to Oil Separator - Fit BMWs with the M52 or M54 6 cylinder engine
    URO Oil Separator Vent Hose - E90,E91,E60,E62,Z4 N52 (10/2005+) ...
    For vehicles with production date from 10/2005
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    URO - Corporate Logo
    T#:639498
    Part#: 11617559530
    In Stock
    $ 28.99

    This product was last offered at the strikethrough price on
    05-27-2026

    $ 24.99 USD
    Limited Qty Sale
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    $ 28.99

    This product was last offered at the strikethrough price on
    05-27-2026

    $ 24.99 USD
    Limited Qty Sale
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    URO Parts is one of the leading manufacturers of high quality direct replacement aftermarket components, covering a wide range of makes and models. All of their replacement parts are manufactured to ISO 9000 certification standards, so you can expect long lasting performance from URO Parts. As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts. All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!
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    Pressure Regulator Valve Repair Kit
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    URO - Corporate Logo
    T#:600041
    Part#: 11127547058
    Ships in 1 Business Day
    $ 14.99 USD
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    Oil Separator Valve
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    Rein - Corporate Logo
    T#:594299
    Part#: 11617531423
    Ships in 3 Business Days
    $ 120.81 USD
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    $ 120.81 USD
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    The oil separator can be replaced on its own but for a complete service we also recommend replacing the oil separator hoses and cleaning the valve cover. Any valve cover or intake manifold work should include a new oil separator valve.
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    PCV Adapter Fitting N54
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    Vargas Turbo Technologies - Corporate Logo
    T#:557961
    Part#: VTT-PCV-ADAPTER
    Ships in 10 Business Days
    $ 145.99 USD
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    $ 145.99 USD
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    Vargas Turbo has you covered when you are installing a custom turbo setup. With all of the adapters you need and all the valves necessary, the only real limiting factor is your imagination!

    This is the adapter fitting that is required to convert your N54 to external PCV if you want to keep your crankcase under vacuum at idle, and anytime you have a vacuum condition in your intake manifold. They are made from 6061-T6 with black anodizing for a long-lasting finish. Includes complete adapter, with all o-rings, and retaining clip.

    This must be used in conjunction with  the Vargas billet check valve, and PCV delete fitting or requires plugging of the intake PCV ports. Installs inline on the throttle body, and adds a -8AN male to adapt to a catch cans, or any custom set up.

    Made from 6061-T6 with black anodizing for a long-lasting finish. Includes complete adapter, with all o-rings, and retaining clip

    This part fits the following BMW engines: 
    2006-2012 N54

     

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    BMW Breather Valve
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    Febi - Corporate Logo
    T#:17339405
    Part#: 11127537733
    In Stock at Vendor
    $ 27.33

    This product was last offered at the strikethrough price on
    05-29-2026

    $ 24.18 USD
    $ 24.18 USD
    Are you experiencing a slight loss of power? This pressure regulator valve repair kit could easily be the culprit. With a bad gasket or weak spring you could be losing pressure, resulting in less power.
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    URO Crankcase Ventilation Return Hose - 11157567802
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    URO - Corporate Logo
    T#:26171676
    Part#: 11157567802
    Ships in 1 Business Day
    $ 55.99 USD
    Free Shipping on orders $49 and up

    For your BMW's optimal performance, ensure the functionality of the hose connecting the oil dipstick to the crankcase vent valve. Positioned below the intake manifold, this hose is susceptible to clogging with oil film and condensation, leading to potential failure over time. Cracks and swelling in old hoses can result in oil and vacuum leaks, compromising engine performance.

    • Essential component for BMW engine functionality
    • Prevents clogging and potential hose failure
    • Minimizes oil and vacuum leaks
    • Convenient replacement when replacing crankcase vent valve
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    Crankcase Oil Separator Repair Kit - E60 525i 530i 2004-2005 ...
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    Turner Motorsport - Corporate Logo
    T#:2889
    Part#: 11617533400-E60
    Ships in 3 Business Days
    $ 411.99 USD
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    $ 411.99 USD
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    This Crankcase Vent / Oil Separator Repair Kit includes the updated oil separator valve, oil dipstick guide tube and hoses. The kit includes:
    1 x 11617533400 - Oil Separator Valve
    1 x 11437565440 - Dip Stick Guide Tube
    1 x 11617533398 - Hose from Valve to Valve Cover
    1 x 11617533399 - Hose from Valve to Intake Manifold
    1 x 11157532629 - Hose from Vent Valve to Dipstick1 x 11431740045 - O-ring for Dip Stick Guide Tube


    This item fits the following BMWs:
    2004-2005 E60 BMW 525i 530i
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    Crankcase Oil Separator and Vent Hose Kit - E90 325xi/330xi, E60 525x...
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    Packaged by Turner - Corporate Logo
    T#:221962
    Part#: TMS221962
    Ships in 1-2 days
    $ 455.99 USD
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    $ 455.99 USD
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    The BMW N52 engine was deisgned with a crankcase vent system that relies on a heated oil separator valve to separate vapor from the liquid oil. Under ideal circumstances, the oil vapor would pass back into the intake and get burned up during normal combustion. The liquid oil would follow a path back down into the oil pan and be reused. This system is environmentally friendly but plagued with problems. The heating elements can fail or oil and carbon particles can block the oil separator valve. With no escape, the oil will continue to pool and collect in the valve cover or make its way into the combustion chamber leading to excessive oil consumption, blue smoke from the exhaust, idle and running issues. These issues are worse in colder climates where the freezing temperatures create an oil sludge condition that is impossible to clear. The plastic hoses can become brittle and crack which leads to vacuum leaks and oil leaks. Thankfully, the CCV is replaceable on the early N52 engines (2006 and some 2007 models) and should be inspected during a major service and any time the valve cover is off. Oil can also back up into the throttle body, which is easier to check than the oil separator itself. Later N52 engines do not have a serviceable oil vent as it is integrated into the valve cover and not a separate part.

    This is a kit containing the oil separator, the vent hoses, and the intake manifold gaskets that are done during a typical oil separator replacement. Complete kit includes:
  • 11617531423, Genuine BMW oil separator
  • 11617559530, vent hose
  • 11157522931, oil separator hose
  • 11157567801, return hose
  • 11157537701, extraction hose
  • 11617547242, intake manifold gaskets (set of 6)
    The intake manifold must be removed to access the oil separator so new profile gaskets are included. We also recommend (but not required) a new oil separator fitting on the intake manifold because it's one of the heated elements that vaporizes the oil as it enters the intake.

    The oil separator can be replaced on its own but for a complete service we also recommend replacing the oil separator hoses and cleaning the valve cover. Any valve cover or intake manifold work should include a new oil separator valve.

    This kit fits the following BMWs:
    -10/2005 E90 BMW 325xi 330xi - Sedan
    -10/2005 E91 BMW 325xi - Wagon
    -10/2005 E60 BMW 525xi 530xi
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    Gates Pressure Regulator Valve Repair Kit - E53, E60, E63, E64, E65, ...
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    Gates - Corporate Logo
    T#:591537
    Part#: 11127547058
    Ships on Jun 24, 2026
    $ 41.85 USD
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    Includes new cap, gasket, and spring