BMW Cooling System Parts & Accessories for BMW Z Series E85/6 (2003-2008)

Water Pump And Thermostat Kit - BMW N52 3.0L

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T#:17073598

Part#: 11537549476KT

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$ 318.83 USD

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Includes everything you may need to replace your water pump and thermostat.

Water Pump And Thermostat Kit

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T#:5376274

Part#: 11517586925TKT

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$ 337.56 USD

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Everything you need to replace your water pump and thermostat. The water pumps in these BMW models are known for failure near 80,000 miles is a very common issue often times leaving the owner stranded. The aftermarket kit offered provides a single stop for water pump and thermostat replacement needs to save the search and get you back on the road. Kit includes: Mahle-Behr thermostat Water pump Genuine BMW coolant thermostat to water pump hose Mounting hardware required for both the thermostat and water pump

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Complete Cooling System Overhaul Package - 2003-4/2004 Z4 2.5 3.0 ...

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T#:339100

Part#: TMS224320

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Sale - Save 8% $ 515.99

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Starting at $ 477.24 USD

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$ 515.99

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This is a customizable cooling system overhaul kit, which starts off with the basic radiator and water pump and can be configured to replace all the M54 common cooling system failure parts in one package. This cooling system package is for the 2003-2005 Z4 Roadster.

The Z4 cooling system is much like that of the sister 3 series. Several of the primary cooling components are prone to failure within 60k miles (or less in many cases). A failure in the cooling system can lead to overheating and catastrophic engine failure. Don't gamble your engine! By replacing these core items preventatively, such as the radiator & waterpump, you are defusing what could be a ticking cooling system time bomb. And if you've had a failure of one of these parts, now is the time to refresh your cooling system. Available with our kit is an OEM Behr radiator, an Original BMW water pump (with updated composite impeller), thermostat (complete with housing), radiator cap, new hoses, and other essential cooling parts.

Optional items (which can be added below):

Radiator cap

Major cooling hoses

Original BMW antifreeze

Upgrade the water pump to a Stewart EMP High Performance pump

Add a new coolant expansion tank (known for cracking)

Include a new coolant level sensor (known for failing / throwing "check coolant" messages)

Include a new coolant temp sensor (located in the lower radiator hose) (re-using the old sensor and seal may lead to a leak)

Add a new thermostat for an automatic transmission (located with the expansion tank).
This cooling system overhaul kit fits the following BMWs:
2003-2005 E85 BMW Z4 2.5i Z4 3.0i

Please put a check in the boxes next to the items you wish to order.

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Expansion Tank Replacement Kit

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T#:15744017

Part#: N524ECSTNKKT-KT

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$ 100.95 USD

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The coolant expansion tank in your vehicle gives additional fluid a place to go after expansion and contraction from temperature change. Because it is subjected to such drastic changes on a regular basis, it can often crack or break. You want to keep all the coolant in your vehicle in the cooling system. If your tank has experienced damage such as cracking, nipples breaking off, or mounting point damage, you will need to replace it. The kit includes: Expansion tank with level sensor URO expansion tank cap Genuine BMW expansion tank grommet Genuine BMW mounting bolts

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OEM Style Hose Clamps

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T#:338927

Part#: HOSE-CLAMPS

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Hose clamps for radiator hoses, coolant hoses, vacuum hoses, or intake hoses. These hose clamps are the same style as your OEM hoses with a smooth inside band to prevent cutting into the hose material.

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Water Pump And Thermostat Kit

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T#:15511872

Part#: 821414677040KT

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$ 504.01 USD

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The water pumps in these BMW models are known for failure near 80,000 miles is a very common issue often times leaving the owner stranded. The aftermarket kit offered provides a single stop for water pump and thermostat replacement needs to save the search and get you back on the road. Kit includes: Mahle-Behr thermostat Water pump Genuine BMW coolant Mounting hardware required for both the thermostat and water pump

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Complete Cooling System Overhaul Package - 4/2004-2005 Z4 2.5 3.0 ...

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T#:339099

Part#: TMS16430

Ships in 1 Business Day

Sale - Save 8% $ 515.99

This product was last offered at the strikethrough price on
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Starting at $ 477.24 USD

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Sale - Save 8%

$ 515.99

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Starting at $ 477.24 USD

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This is a customizable cooling system overhaul kit, which starts off with the basic radiator and water pump and can be configured to replace all the M54 common cooling system failure parts in one package. This cooling system package is for the 2003-2005 Z4 Roadster.

The Z4 cooling system is much like that of the sister 3 series. Several of the primary cooling components are prone to failure within 60k miles (or less in many cases). A failure in the cooling system can lead to overheating and catastrophic engine failure. Don't gamble your engine! By replacing these core items preventatively, such as the radiator & waterpump, you are defusing what could be a ticking cooling system time bomb. And if you've had a failure of one of these parts, now is the time to refresh your cooling system. Available with our kit is an OEM Behr radiator, an Original BMW water pump (with updated composite impeller), thermostat (complete with housing), radiator cap, new hoses, and other essential cooling parts.

Optional items (which can be added below):

Radiator cap

Major cooling hoses

Original BMW antifreeze

Upgrade the water pump to a Stewart EMP High Performance pump

Add a new coolant expansion tank (known for cracking)

Include a new coolant level sensor (known for failing / throwing "check coolant" messages)

Include a new coolant temp sensor (located in the lower radiator hose) (re-using the old sensor and seal may lead to a leak)

Add a new thermostat for an automatic transmission (located with the expansion tank).
This cooling system overhaul kit fits the following BMWs:
4/2004-2005 E85 BMW Z4 2.5i Z4 3.0i

Please put a check in the boxes next to the items you wish to order.

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Heater Inlet Pipe

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T#:594330

Part#: 11531705210

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$ 40.27 USD

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This is the plastic heater inlet pipe that connects the cylinder head to the heater inlet on cars with the M52 or M54 engine.The plastic on this hose becomes brittle over time and eventually leads to failure.

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BMW M52 M54 Water Pipe

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T#:594294

Part#: 11537502525

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$ 53.19 USD

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BMW M52 M54 Water Pipe is an essential replacement part designed to ensure long-term reliability and optimal performance for your BMW's cooling system. Engineered to replace cracked or broken coolant pipes, this high-quality water pipe from Turner Motorsport guarantees a perfect fit and dependable service. Investing in this replacement pipe helps prevent overheating and potential engine damage, maintaining your vehicle's performance and longevity.

Reliable replacement: Designed to replace cracked or broken coolant pipes for improved engine cooling.
Optimal fitment: Engineered to ensure a perfect fit and seamless installation.
Durable construction: Built with high-quality materials to withstand engine temperatures and environmental conditions.
Preventative maintenance: Helps avoid overheating and potential engine damage by ensuring a reliable coolant flow.
Vehicle compatibility: Specifically designed for BMW M52 and M54 engine models.

Upgrade your BMW’s cooling system with the BMW M52 M54 Water Pipe from Turner Motorsport for enhanced reliability and performance.

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VTT Billet Coolant Reservoir Cap - Anodized Blue - Most BMWs 2006+ (E...

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T#:7530036

Part#: COOLANTCAPBLUE

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$ 67.99 USD

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VTT is proud to offer their billet replacement for the factory plastic Coolant Reservoir cap. This cap does away with the weak plastic cap while adding some pop, and color to your engine bay. This coolant cap retains ALL of the factory provisions by simply allowing you to snap the factory pressure-relief into the new Billet Cap. VTT also designed these caps to complement their N5X Billet Oil caps, N5XBillet Oil filter housing caps, and Billet Power Steering cap, so all 4 will have the same design. These caps are offered in 4 colors – Red, Black, Blue, and Clear anodized Replaces Genuine BMW Reservoir Cap # 17117639020 Note: Fitment includes 99% of all BMW with a coolant Reservoir tank from the E series forward, meaning then fit even the brand New G8X M3/4 with the S58, all B58, etc. If your BMW is an E90 or newer this cap most likely will fit

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VTT Billet Coolant Reservoir Cap - Anodized Red - Most BMWs 2006+ (E/...

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T#:7530034

Part#: COOLANTCAPRED

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$ 67.99 USD

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VTT is proud to offer their billet replacement for the factory plastic Coolant Reservoir cap. This cap does away with the weak plastic cap while adding some pop, and color to your engine bay. This coolant cap retains ALL of the factory provisions by simply allowing you to snap the factory pressure-relief into the new Billet Cap. VTT also designed these caps to complement their N5X Billet Oil caps, N5XBillet Oil filter housing caps, and Billet Power Steering cap, so all 4 will have the same design. These caps are offered in 4 colors – Red, Black, Blue, and Clear anodized Replaces Genuine BMW Reservoir Cap # 17117639020 Note: Fitment includes 99% of all BMW with a coolant Reservoir tank from the E series forward, meaning then fit even the brand New G8X M3/4 with the S58, all B58, etc. If your BMW is an E90 or newer this cap most likely will fit

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VTT Billet Coolant Reservoir Cap - Anodized Clear - Most BMWs 2006+ (...

This coolant cap retains ALL of the factory provisions by simply allowing you to snap t...

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T#:7530035

Part#: COOLANTCAPRAW

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$ 67.14 USD

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VTT is proud to offer their billet replacement for the factory plastic Coolant Reservoir cap. This cap does away with the weak plastic cap while adding some pop, and color to your engine bay. This coolant cap retains ALL of the factory provisions by simply allowing you to snap the factory pressure-relief into the new Billet Cap. VTT also designed these caps to complement their N5X Billet Oil caps, N5XBillet Oil filter housing caps, and Billet Power Steering cap, so all 4 will have the same design. These caps are offered in 4 colors – Red, Black, Blue, and Clear anodized Replaces Genuine BMW Reservoir Cap # 17117639020 Note: Fitment includes 99% of all BMW with a coolant Reservoir tank from the E series forward, meaning then fit even the brand New G8X M3/4 with the S58, all B58, etc. If your BMW is an E90 or newer this cap most likely will fit

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Rein Radiator Hose - Lower - Z4

For roadster models with production date up to 04/2004

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T#:402423

Part#: 17127514405

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$ 28.49 USD

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Keep your cooling system leak free

Thermostat With Housing

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T#:582356

Part#: 11537509227

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$ 85.49 USD

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Stop leaks before they start with this new Thermostat With Housing from Rein.

OEM Rein Upper Radiator Hose - Z4 Roadster

Roadster models only

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T#:362445

Part#: 17127514404

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$ 49.39 USD

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Over time, coolant hoses begin to get brittle and are susceptible to cracking and splitting. Replace your cracked or leaking coolant hose to prevent further leaks and potentially catastrophic failure.

Rein Expansion Tank Mounting Plate - E46, Z4

For vehicles with automatic transmission only

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T#:402139

Part#: 17111436251

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$ 76.94 USD

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Mounts to the side of the radiator for retaining the expansion tank

VTT Billet Coolant Reservoir Cap - Anodized Black - Most BMWs 2006+ (...

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T#:7530033

Part#: COOLANTCAPBLK

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$ 67.99 USD

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VTT is proud to offer their billet replacement for the factory plastic Coolant Reservoir cap. This cap does away with the weak plastic cap while adding some pop, and color to your engine bay. This coolant cap retains ALL of the factory provisions by simply allowing you to snap the factory pressure-relief into the new Billet Cap. VTT also designed these caps to complement their N5X Billet Oil caps, N5XBillet Oil filter housing caps, and Billet Power Steering cap, so all 4 will have the same design. These caps are offered in 4 colors – Red, Black, Blue, and Clear anodized Replaces Genuine BMW Reservoir Cap # 17117639020 Note: Fitment includes 99% of all BMW with a coolant Reservoir tank from the E series forward, meaning then fit even the brand New G8X M3/4 with the S58, all B58, etc. If your BMW is an E90 or newer this cap most likely will fit

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OEM Rein Expansion Tank Cap - BMW E32 E34 E36 E38 E39 E46 & More ...

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T#:340541

Part#: 17111742231

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$ 17.09 USD

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This radiator expansion tank cap is used most BMW's from 1991-2006. It is a common failure item. When this item fails, it cannot hold pressure which results in your BMW overheating. If you are overhauling your coolant system, now is the time to consider preventative replacing this cap. It is also referred to as the coolant reservoir cap.

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Aluminum Screws for N52 N54 Water Pump

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T#:2253

Part#: 11510392553

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$ 6.77 USD

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These aluminum water pump screws are single use and must be replaced each time they are removed. These are used on all 325i, 328i, and 330i with the BMW N51 N52 and N53 engines. They were also used on some early N54 engines that have rubber mounts on the water pump housing. Do not use these bolts if your N54 water pump has been replaced with a housing that does not have the rubber mounts.

In German, Rein means Pure. In the automotive industry the Rein name has quickly come to represent quality. With fitments for some of the world’s finest automobiles including BMW and Mini and guaranteed OE quality, Rein is a name you can trust.

This item fits the following BMWs:
2008+ E82 BMW 128i 135i
2007+ E9X BMW 325i 325xi 328i 328xi 330i 335i 335xi
2006+ E60 BMW 525i 525xi 528i 528xi 530i 530xi 535i 535xi
2006+ X3 BMW X3 3.0i X3 3.0si
2006+ Z4 BMW Z4 3.0i Z4 3.0si

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Rein Coolant Hose - E60, E61, E70, E82, E83, E88, E90, E91, E92, E93,...

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T#:348982

Part#: 11537521049

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$ 17.09 USD

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Connects from the water pump to the thermostat

OEM Rein Coolant Pipe Inlet Hose Section - N52

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T#:388662

Part#: 11537516414

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$ 18.99 USD

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Cooling hoses tend to crack over time after going through countless heating and cooling cycles. This can lead to leaks or air bubbles in the cooling system that lead too coolant loos, hurts cooling potential, or could possibly cause damage from excess heat.

Fits the following BMWs:
Submodels with N52 3.0L engine.

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Rein Coolant Bleeder Screw CHW1575 - Priced Each

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T#:591955

Part#: 17111712788

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$ 3.87 USD

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Coolant Bleeder Screw is a critical component for maintaining your BMW’s cooling system. Designed to release trapped air from the coolant lines, this screw ensures efficient coolant flow and prevents overheating. Specifically engineered for BMW models, it enhances the overall performance and longevity of your engine by maintaining proper temperature regulation. Comes with O-Ring.

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Rein Radiator Hose - Lower - Z4

For roadster models with production date from 04/2004

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T#:386347

Part#: 17127535591

In Stock at Vendor

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$ 56.99 USD

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Keep your cooling system leak free

OEM Rein Coolant Hose - E60 E61 E83 Z4

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T#:583591

Part#: 11537519494

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$ 18.04 USD

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Attaches from inlet pipe to heat exchanger. Over time, coolant hoses begin to get brittle and are susceptible to cracking and splitting. Replace your cracked or leaking coolant hose to prevent further leaks and potentially catastrophic failure.

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Water Pump

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T#:46478542

Part#: WPR0046

Ships in 3 Business Days

Sale - Save 5% $ 795.99

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$ 755.36 USD

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Don't take your car's cooling system for granted. A waterpump failure can cost you an engine, which is why preventatively replacing your BMWs waterpump and refreshing the cooling system every 60,000 miles. The water pump is a weak point is the cooling system. Replacing your waterpump will go a long way for keeping your car on the road and operating properly. This water pump fits many 2006 and newer BMW 6 cylinder engines, specifically all the BMWs with the N51, N52, N53 engines. You will also need to purchase replacement aluminum screws Part #11510392553

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Water Pump Service Kit

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T#:57616362

Part#: 1151758692550

Ships in 3 Business Days

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$ 1,201.28 USD

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This CRP/Rein service kit offers an all-in-one overhaul solution designed to restore maximum cooling system integrity.

Water Pump Service Kit

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T#:57616363

Part#: 115175869259

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$ 1,603.14 USD

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Protect your high-performance driving machine from the devastating consequences of thermal overload with the Rein Water Pump Service Kit.

Water Pump Service Kit

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T#:57616365

Part#: 115175869253

Ships in 3 Business Days

Sale - Save 5% $ 1,265.99

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$ 1,202.05 USD

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Engineered to deliver factory-level reliability, the Rein Electric Water Pump Service Kit is an essential maintenance upgrade for your BMW.

Water Pump Service Kit

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T#:57616366

Part#: 115175869251

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Sale - Save 5% $ 1,326.99

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$ 1,260.18 USD

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$ 1,326.99

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Refresh your cooling setup with full confidence and protect your investment against heat-induced power loss.

Radiator Support Bracket

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T#:14122755

Part#: 17117514402

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$ 7.83 USD

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Mounts to top of radiator bracket, 2 per vehicle.

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BMW Cooling System Parts & Accessories for BMW Z Series E85/6 (2003-2008)

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