Find Parts That Fit Your Vehicle

Rein BMW Cooling System Parts & Accessories

The cooling system is arguably the weakest point in numerous BMWs. If you drive an aging BMW or plan on taking your car to the track like we do, we recommend beefing up your cooling system before going to the track. Generally, the main components in your cooling system that are prone to failure include the following: expansion tank, factory hoses, water pump, thermostat, fan (especially if your vehicle comes factory with a clutch fan), and radiator. Factory BMW expansion tanks are plastic and prone to either breaking off at connection points or combusting. As factory rubber hoses age they either crack or break over time - we offer silicone cooling hose upgrades for most applications to avoid future failures. If you have an older vehicle, your water pump likely comes from the factory with a plastic impeller - we offer upgraded water pumps with metal impellers that are far more reliable. Newer model BMWs utilize electric water pumps - BMW spent millions of dollars engineering these water pumps, but they fail so often that we recommend replacing at 60,000 mile service intervals to avoid being stranded on the side of the road. In terms of thermostats, we offer various upgraded thermostats for racing applications. If your BMW utilizes a clutch fan from the factory, we have several options available in terms of universal electric fans - we recommend replacing these to avoid sending brittle plastic fan blades through your hood. For radiators, we recommend swapping out your radiator for one that does not use plastic connection points like your factory radiator.

Sub-Categories

Sort By:

Upper Radiator Coolant Hose
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:594378
Part#: 17127619684
In Stock
$ 69.38

This product was last offered at the strikethrough price on
06-29-2026

$ 51.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
$ 69.38

This product was last offered at the strikethrough price on
06-29-2026

$ 51.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
Over the years and with exposure to extremely hot coolant, the coolant hoses in your vehicle can take a beating. Being made of reinforced rubber, these hoses can fail in a number of ways. Splitting at a hose clamp, swelling, cracking, and breaking are just a few of the ways this hose can leave you stranded. Replace it at the first sign of wear to keep your coolant in your engine.
Show More Show Less
Expansion Tank Vent Hose
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:591986
Part#: 17127519247
Ships in 3 Business Days
$ 29.99 USD
Free Shipping on orders $49 and up
$ 29.99 USD
Free Shipping on orders $49 and up
With quick connect coupling
Rein - Corporate Logo
T#:33913483
Part#: 17127640287
Ships in 3 Business Days
$ 38.99 USD
Free Shipping on orders $49 and up

The Hose Transmission Oil Heat Exchanger is a crucial component in maintaining the longevity and performance of your vehicle's transmission system. This part is designed to efficiently cool down the transmission oil, ensuring that your transmission operates at optimal temperatures, reducing wear and tear. Available at Turner Motorsport, this high-quality heat exchanger is engineered to meet the demands of high-performance vehicles, making it an excellent choice for both daily drivers and track enthusiasts.

  • Optimizes transmission oil temperature to prevent overheating
  • Enhances the lifespan of your transmission system
  • Durable construction for long-lasting performance
  • Ideal for performance and high-demand driving conditions
  • Compatible with a wide range of vehicle makes and models

    Upgrade your vehicle’s transmission cooling system with the Hose Transmission Oil Heat Exchanger and drive with confidence knowing your transmission is protected.

Show More Show Less

COOLANT HOSE
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:591352
Part#: 17127592651
In Stock at Vendor
$ 29.99 USD
Free Shipping on orders $49 and up


Rein BMW Coolant Hose -
This item fits the following BMW Chassis:
F06,F10,F12,F13

Fits BMW Engines including:
N52N,N63,N63N


Upper Radiator Hose
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:599684
Part#: 17127586774
In Stock
$ 42.99 USD
Free Shipping on orders $49 and up
Water Hose with Gasket
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:599688
Part#: 11537560530
In Stock at Vendor
$ 21.99 USD
Free Shipping on orders $49 and up
This short curved coolant hose connects from the aux water pump near the transmission.

BMW Expansion Tank With Cap - 17107514964
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:46616026
Part#: EPK0025
Ships in 3 Business Days
$ 74.99 USD
Free Shipping on orders $49 and up
The coolant expansion tank provides a place for excess coolant to flow as temperatures rise and fall. Because it’s exposed to constant heat cycles and pressure changes, it can eventually crack, split, or suffer damage to its nipples or mounting points. Keeping coolant properly contained within the system is essential, so if your tank shows signs of wear or damage, replacement is necessary. This direct-fit replacement installs easily and delivers the same heating and cooling performance as the factory unit. When replacing the tank, be sure to have additional coolant on hand. ECS Tuning carries a full range of vehicle-specific coolants designed to meet OEM specifications. Most German vehicles require specialized formulas—using the correct coolant will help prevent corrosion and ensure long-term reliability.
Show More Show Less
OEM Rein Lower Radiator Hose - E53 X5 M62 4.4L 4.6L
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:375370
Part#: 11537500750
Ships in 3 Business Days
$ 33.99 USD
Free Shipping on orders $49 and up

Replace your cracked or leaking radiator hose to prevent further leaks and potentially catastrophic failure.

This item fits the following BMWs: 
2000-2003 E53 BMW X5 4.4i 4.6is

Show More Show Less

OEM Rein Radiator Hose - E70 X5
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:379812
Part#: 17127537108
In Stock
$ 44.99 USD
Free Shipping on orders $49 and up
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.

Lower Radiator Hose
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:594367
Part#: 17127578703
In Stock at Vendor
$ 40.99 USD
Free Shipping on orders $49 and up
Replace your swollen or leaking hose.
OEM Rein Lower Radiator Hose - E36 318 M42 1.8L
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:6957
Part#: 11531721709
Ships in 3 Business Days
$ 21.99 USD
Free Shipping on orders $49 and up
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.
Coolant Hose
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:592656
Part#: 64213400417
Ships in 1 Business Day
$ 20.99 USD
Free Shipping on orders $49 and up
Connects the expansion tank to the heater core


Water Hose With O-Ring - Cylinder Head To Thermostat Housing ...
2X Entries Into Our F80 M3 Sweepstakes
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:594303
Part#: 11537585023
Ships in 1 Business Day
$ 30.11 USD
Free Shipping on orders $49 and up
Replacement Water Hose from Rein
Rein Cylinder Head To Thermostat Hose - E83
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:591814
Part#: 11537552339
Ships in 1 Business Day
$ 37.06

This product was last offered at the strikethrough price on
08-26-2026

$ 33.74 USD
Free Shipping on orders $49 and up
$ 33.74 USD
Free Shipping on orders $49 and up
Replace your leaking coolant hose
OEM Rein Coolant Hose - E38 E39 M62 4.4L
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:375752
Part#: 11537511207
In Stock at Vendor
$ 25.83

This product was last offered at the strikethrough price on
08-13-2026

$ 23.23 USD
Free Shipping on orders $49 and up
$ 23.23 USD
Free Shipping on orders $49 and up
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.

OEM Rein Expansion Tank Hose - E53 X5 M62 4.4L 4.6L
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:363439
Part#: 11537505950
Ships in 1 Business Day
$ 27.99 USD
Free Shipping on orders $49 and up

Replace your cracked or leaking radiator hose to prevent further leaks and potentially catastrophic failure.

This item fits the following BMWs: 
2000-2003 E53 BMW X5 4.4i 4.6is

Show More Show Less

OEM Rein Thermostat Coolant Hose - E53 M62
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:20210
Part#: 11537500752
Ships in 3 Business Days
$ 21.99 USD
Free Shipping on orders $49 and up
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.
OEM Rein Radiator Feed Hose - E70 X5
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:583608
Part#: 17127536231
Ships in 3 Business Days
$ 62.99 USD
Free Shipping on orders $49 and up
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 Thermostat With Housing 88C - E70, E90
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:555019
Part#: 11517805811
In Stock at Vendor
$ 63.99 USD
Free Shipping on orders $49 and up

Rein Thermostat With Housing 88C is designed to maintain precise engine temperature control in your vehicle's cooling system. This premium thermostat, featuring an 88°C temperature rating, ensures optimal cooling performance by regulating coolant flow, preventing overheating, and enhancing overall engine efficiency. Built with a durable housing, this thermostat is an ideal replacement for your factory part, offering reliable fitment and long-lasting performance.

Available at Turner Motorsport, the Rein Thermostat With Housing 88C is engineered to withstand extreme conditions, ensuring consistent operation even under heavy loads. This OE-quality component is a must-have for maintaining your car’s peak performance and fuel efficiency.

  • 88°C thermostat for precise engine temperature regulation
  • Integrated housing for easy installation and superior durability
  • Prevents engine overheating and improves cooling system efficiency
  • Designed for a direct fit and easy replacement
  • Available at Turner Motorsport, your trusted source for automotive parts

Upgrade your vehicle’s cooling system with the Rein Thermostat With Housing 88C and enjoy enhanced engine performance and longevity.

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.

Includes gasket and O-rings

Show More Show Less
Water Hose - Thermostat Housing To Water Pump
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:599691
Part#: 11537584543
In Stock
$ 37.99 USD
Free Shipping on orders $49 and up
This short curved coolant hose connects from the aux water pump near the transmission.

Rein Coolant Vent Pipe - E65, E66
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:591999
Part#: 17127534527
Ships in 3 Business Days
$ 30.99 USD
Free Shipping on orders $49 and up
Connects the radiator to the expansion tank

Rein Radiator Hose - Automatic Transmission - E83
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:19573
Part#: 17123417607
Ships in 3 Business Days
$ 36.99 USD
Free Shipping on orders $49 and up
Over the years and with exposure to extremely hot coolant, the coolant hoses in your vehicle can take a beating. Being made of reinforced rubber, these hoses can fail in a number of ways. Splitting at a hose clamp, swelling, cracking, and breaking are just a few of the ways this hose can leave you stranded. Replace it at the first sign of wear to keep your coolant in your engine.
Show More Show Less
Radiator Vent Hose
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:592001
Part#: 17127534917
Ships in 3 Business Days
$ 38.23

This product was last offered at the strikethrough price on
08-13-2026

$ 37.99 USD
Free Shipping on orders $49 and up
$ 37.99 USD
Free Shipping on orders $49 and up
Replace your cracked & leaking hose
Automatic Transmission Thermostat
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:13661147
Part#: 17111437362
In Stock
$ 43.99

This product was last offered at the strikethrough price on
07-14-2026

$ 28.99 USD
Free Shipping on orders $49 and up
$ 28.99 USD
Free Shipping on orders $49 and up
This unit controls the temperature of your automatic transmission fluid


Rein Expansion Tank Hose - E53
2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:375755
Part#: 11537500735
In Stock at Vendor
$ 24.99 USD
Free Shipping on orders $49 and up
To maintain peak performance, a BMW's cooling system must remain perfectly pressurized. On the E53 X5, the expansion tank hose acts as a vital conduit in this thermal cycle, managing the flow of expanding coolant back and forth between the auxiliary water pump and reservoir. Over years of severe under-hood heat cycles, the factory rubber loses its elasticity and the plastic connectors turn brittle, establishing a high risk for spontaneous splitting.
Show More Show Less
OEM Rein Coolant Hose - E60 528
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:557218
Part#: 17127565780
Ships in 2 Business Days
$ 35.99 USD
Free Shipping on orders $49 and up
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 - Corporate Logo
T#:375750
Part#: 17127508015
Back Ordered
$ 29.99 USD
Free Shipping on orders $49 and up
Attaches from the bottom fitting on the expansion tank to the supply hose. 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.
Show More Show Less

Rein - Corporate Logo
T#:45757470
Part#: 17125A022D6
Back Ordered
$ 35.99 USD
Free Shipping on orders $49 and up
$ 35.99 USD
Free Shipping on orders $49 and up
This hose connects the expansion tank to the radiator. If your coolant expansion tank hose is cracked or leaking, replace it early to prevent further coolant loss and eventual overheating.

OEM Rein Upper Radiator Hose - E53 X5 3.0i 2000-2006
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:6979
Part#: 11537500733
Back Ordered
$ 40.99 USD
Free Shipping on orders $49 and up
This upper radiator cooling hose connects the drivers side top of the radiator to the thermostat housing on X5 3.0i with the M54 engine.

This item fits the following BMWs:
2000-2006 E53 BMW X5 3.0i M54
Show More Show Less
OEM Rein Lower Radiator Hose - E83 X3
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:379773
Part#: 17123424499
Back Ordered
$ 36.99 USD
Free Shipping on orders $49 and up
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.

Coolant Inlet Hose Section
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:388669
Part#: 11537558523
In Stock
$ 17.99 USD
Free Shipping on orders $49 and up
$ 17.99 USD
Free Shipping on orders $49 and up
Rein Expansion Tank Cap
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:384807
Part#: 17117639021
In Stock
$ 16.99 USD
Free Shipping on orders $49 and up
Cap for plastic expansion tank

Radiator Hose - Lower
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:29732515
Part#: 17121475574
In Stock
$ 20.99 USD
Free Shipping on orders $49 and up
$ 20.99 USD
Free Shipping on orders $49 and up

Lower Radiator Hose CHR0926 is a premium replacement part designed to ensure the efficient operation of your vehicle's cooling system. Specifically crafted for a perfect fit, this durable hose ensures the proper flow of coolant between the radiator and engine, preventing overheating and maintaining optimal engine performance. Constructed from durable materials, the Lower Radiator Hose CHR0926 offers excellent heat resistance and long-lasting reliability, making it an ideal solution for any vehicle.

Available at Turner Motorsport, this radiator hose is engineered for easy installation and guarantees a direct fit for seamless compatibility with various vehicle models. Whether you're maintaining or upgrading your cooling system, the Lower Radiator Hose CHR0926 is essential for optimal performance and durability.

  • Precision-engineered for a direct fit
  • Reinforced materials for durability and heat resistance
  • Prevents overheating by ensuring proper coolant flow
  • Designed to withstand high temperatures and pressures
  • Easy installation for hassle-free replacement
  • Available at Turner Motorsport, trusted for quality automotive parts

Upgrade your vehicle’s cooling system with the Lower Radiator Hose CHR0926 for reliable performance and enhanced engine longevity.

Show More Show Less

Rein Coolant Bleeder Screw CHW1575 - Priced Each
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:591955
Part#: 17111712788
In Stock
$ 4.99 USD
Free Shipping on orders $49 and up
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.
Show More Show Less
Rein - Corporate Logo
T#:44835448
Part#: CHU0484
In Stock
$ 46.99

This product was last offered at the strikethrough price on
08-13-2026

$ 46.00 USD
Free Shipping on orders $49 and up
$ 46.00 USD
Free Shipping on orders $49 and up
Attaches the outlet of the thermostat housing to the cylinder head This hose is notorious for failure at the flange. The plastic flange becomes brittle over time due to numerous heat cycles and often cracks, leading to a major coolant leak. This upgraded option from Rein features an aluminum flange that will not crack or split, ensuring years of operation without the worries of failure.
Show More Show Less
Hose From Radiator Bottom - Thermostat CHR0800
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:38195379
Part#: 17127617368
Ships in 1 Business Day
$ 45.99 USD
Free Shipping on orders $49 and up


Rein - Corporate Logo
T#:591144
Part#: 11531265084
In Stock at Vendor
$ 2.99

This product was last offered at the strikethrough price on
09-29-2026

$ 2.05 USD
Free Shipping on orders $49 and up
$ 2.05 USD
Free Shipping on orders $49 and up
This O-ring seals the thermostat to the cylinder head.
Coolant Hose
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:592165
Part#: 17122754231
In Stock
$ 12.99 USD
Free Shipping on orders $49 and up
Aluminum Screws for N52 N54 Water Pump
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:2253
Part#: 11510392553
In Stock
$ 7.13 USD
Free Shipping on orders $49 and up
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
Show More Show Less

Rein - Corporate Logo
T#:33946948
Part#: 17139846642
Back Ordered
$ 99.65 USD
Free Shipping on orders $49 and up

The Expansion Tank is an essential part of your vehicle’s cooling system, designed to accommodate the expansion of coolant as it heats up during engine operation. This high-quality tank helps regulate coolant pressure, preventing overheating and ensuring optimal engine performance. Built to meet or exceed OEM standards, this expansion tank is crafted from durable, heat-resistant materials to provide long-lasting reliability. It offers a direct fit for a wide range of European vehicles, ensuring easy installation.

  • Prevents Overheating: Manages coolant expansion to maintain consistent engine temperature.
  • Durable Construction: Made from premium, heat-resistant materials to ensure long-term durability.
  • OEM Quality Fit: Designed for a precise fit, meeting or exceeding original equipment specifications.
  • Leak-Proof Design: Provides a secure seal to prevent coolant loss and maintain system efficiency.
  • Easy Installation: Direct replacement part, compatible with a variety of European vehicle models.

Find the Rein Expansion Tank at Turner Motorsport for top-quality replacement parts and reliable performance.

Show More Show Less

Coolant Hose
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:393277
Part#: 17127542540
In Stock
$ 51.99

This product was last offered at the strikethrough price on
08-31-2026

$ 42.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
$ 51.99

This product was last offered at the strikethrough price on
08-31-2026

$ 42.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
Attaches to the vent port on the expansion tank
Rein - Corporate Logo
T#:40985138
Part#: 17127617377
In Stock
$ 70.99

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

$ 59.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
$ 70.99

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

$ 59.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
This OEM Rein coolant hose connects the auxiliary pump to the heat exchanger hose. Replace your old, cracked coolant hose with this new hose from Rein to prevent coolant loss and overheating.

Rein Coolant Hose - E36
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:591767
Part#: 11531703844
In Stock
$ 8.14 USD
Free Shipping on orders $49 and up
This is the heater hose that connects between the heater valve and the heater return hose
Rein Water Pump O-Ring (Small) - E32, E34, E38, E39
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:379680
Part#: 11531710055
In Stock
$ 2.03 USD
Free Shipping on orders $49 and up
When it comes time to replace the water pump, be sure to replace all the O-Rings associated with it to ensure that your car stays leak free. If you are experiencing leaking issues, be sure to inspect these rings, as they might have worn down. This specific ring is used when replacing water pump on cooling pipe to the water accumulator. There are two per car.
Show More Show Less

Rein - Corporate Logo
T#:374352
Part#: 11531741409
In Stock
$ 17.99

This product was last offered at the strikethrough price on
09-24-2026

$ 16.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
$ 17.99

This product was last offered at the strikethrough price on
09-24-2026

$ 16.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
This item fits the following BMWs:    
1997-1998   E39 BMW   540i  
1996-1998   E38 BMW   740i 740il 

Rein - Coolant Return Line - G30 530i, G11 740e
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:33946941
Part#: 17128602870
In Stock
$ 71.99 USD
Free Shipping on orders $49 and up

The Radiator Hose - Coolant Return Line is a critical component for maintaining an efficient cooling system in your vehicle. Engineered for durability and optimal performance, this hose ensures the proper circulation of coolant, preventing engine overheating and extending the life of your engine. Designed for a wide range of European vehicles, the coolant return line guarantees a perfect fit and smooth installation. Ideal for both DIY enthusiasts and professional mechanics, this high-quality replacement hose ensures your engine runs at peak performance.

  • Enhanced Durability: Made from high-grade materials to withstand extreme temperatures and pressure.
  • Prevents Overheating: Ensures proper coolant flow, maintaining the engine’s optimal temperature.
  • OEM Fitment: Designed to meet or exceed original equipment standards for European vehicles.
  • Leak-Proof Design: Provides a secure and leak-resistant connection to prevent coolant loss.
  • Easy Installation: Hassle-free replacement with compatibility across multiple vehicle makes and models.

For a reliable replacement, get the Radiator Hose - Coolant Return Line Rein.

Show More Show Less
Rein Engine Inlet To Changeover Valve Hose
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:52903280
Part#: 17128616914
Back Ordered
New Item
$ 45.99 USD
Free Shipping on orders $49 and up
This Rein Automotive coolant hose is an exact-fit aftermarket solution for the BMW "By-Pass Hose".
OEM Rein Coolant Pipe Inlet Hose Section - N52
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:388662
Part#: 11537516414
In Stock
$ 19.99 USD
Free Shipping on orders $49 and up

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.

Show More Show Less


Rein - Corporate Logo
T#:348982
Part#: 11537521049
In Stock
$ 17.99 USD
Free Shipping on orders $49 and up
Connects from the water pump to the thermostat
Rein Water Hose - Z3
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:363333
Part#: 11531436988
In Stock
$ 17.99 USD
Free Shipping on orders $49 and up
Serves as a supply line to the radiator