BMW Cooling System Parts & Accessories for BMW 6 Series E24 (1977-1989)

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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.

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Redline - Corporate Logo
T#:394769
Part#: REDLINE5A
In Stock
Starting at $ 15.99 USD
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Starting at $ 15.99 USD
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Water Wetter is a unique wetting agent for cooling systems which reduces coolant temperatures by as much as 30*F. This liquid product can be used to provide rust and corrosion protection in plain water for racing engines, which provides much better heat transfer properties than glycol-based antifreeze.
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40-60mm 3/8"/9mm Band Hose Clamp
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:341280
Part#: 003402ECS06A-08
In Stock
Sale - Save 25% $ 3.99

This product was last offered at the strikethrough price on
06-13-2026

$ 2.99 USD
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Sale - Save 25%
$ 3.99

This product was last offered at the strikethrough price on
06-13-2026

$ 2.99 USD
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ECS Tuning 304 Stainless Steel Hose Clamps

Revolutionize your car maintenance with ECS Tuning's premium 304 stainless steel hose clamps. Eliminate dealership delays and inflated prices! These German-style clamps utilize T-bolts for hassle-free diameter adjustment. With various band widths available, these durable clamps ensure reliability without the hefty cost. Experience dealership-quality products at affordable rates, exclusively at ECS Tuning.

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Lower Radiator Hose
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:373010
Part#: 11531266462
Ships in 1 Business Day
$ 10.99 USD
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Hose from radiator to water pump

Coolant Hose
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:373138
Part#: 11531266459
Ships in 1 Business Day
$ 3.99 USD
Free Shipping on orders $49 and up
Water pump to thermostat housing

Spal - Corporate Logo
T#:598825
Part#: 30130074
In Stock at Vendor
$ 17.99 USD
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Provides .25" stand off from radiator, does not work with high output fans.
Cooling Hose
From production date 09/1981
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:373141
Part#: 11531274210
Ships in 1 Business Day
$ 9.99 USD
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$ 9.99 USD
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Located under intake manifold

Febi Freeze Plug - 11111714712
We Price Match - Give Us A Call or Chat!
Febi - Corporate Logo
T#:6570
Part#: 11111714712
In Stock
$ 3.99

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

$ 2.03 USD
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$ 2.03 USD
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ENGINE COVER LID 11111714712
Rubber Grommet
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:591950
Part#: 17111117442
Ships in 1 Business Day
$ 11.99 USD
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For mounting of radiator and oil cooler

Radiator Hose - Lower
From production date 09/1982
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:373014
Part#: 11531289859
Ships in 1 Business Day
$ 15.99 USD
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$ 15.99 USD
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Replace your radiator hose before a blown hose leaves you stranded.

URO Radiator Hose - Upper - BMW E24 E28
Up to production date 06/1987 From production date 09/1982
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:373011
Part#: 11531276647
Ships in 1 Business Day
$ 16.79 USD
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$ 16.79 USD
Free Shipping on orders $49 and up
Replace your radiator hose before a blown hose leaves you stranded.
URO Engine Temperature Sensor
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:37757224
Part#: 13621284397
Ships in 1 Business Day
$ 7.99 USD
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This sensor functions as an oil temperature sensor in air-cooled cars and a coolant temperature sensor in water-cooled cars.
Coolant Level Sensor - 109mm Long
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:380458
Part#: 61311375715
Ships in 1 Business Day
$ 15.99 USD
Free Shipping on orders $49 and up
Replace your coolant level sensor and ensure that your levels are accurately monitored


OEM Rein Radiator Coolant Cap
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:38161716
Part#: 92810625703
In Stock
$ 11.99 USD
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Rein Automotive OE Quality caps are designed to be direct replacements for OE caps. Rein caps are designed to match or exceed the OE materials used and are produced to the highest standards to ensure long service life. Rein Automotive OE quality caps keep the coolant system at the proper pressure, just like the OE cap.
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OEM Rein Radiator Cap - E21 E24 E10 E12 E23 E28
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:7395
Part#: 17111100848
In Stock
$ 11.99 USD
Free Shipping on orders $49 and up
The radiator tank cap keeps necessary pressure on your coolant to increase efficiency. If you have an overheating issue in your vehicle, a simple, quick, and inexpensive part to replace is this cap. Often times, the coolant is not kept under enough pressure to keep it from boiling or expanding too much. This cap keeps all the heat and liquid inside the coolant system for maximum efficiency. Should be replaced each time major coolant system service is performed.
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Spal - Corporate Logo
T#:598910
Part#: 30130013
In Stock at Vendor
$ 6.99 USD
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Wire pin used to mount electric fan directly to radiator.

URO Coolant Level Sensor - BMW E24 E30
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:37757292
Part#: 61311361248
Ships in 1 Business Day
$ 12.99 USD
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URO Coolant Level Sensor - BMW E24 E30

URO Coolant Level Sensor - BMW E24 E30 is the perfect solution for restoring accurate coolant level monitoring in your BMW. If you are experiencing a false "low coolant" warning or if your vehicle fails to notify you of dangerously low coolant levels, this high-quality replacement sensor will fix those issues. Designed as a direct-fit OE replacement, this sensor installs easily into your coolant reservoir tank with a simple plug-and-play wiring connection. Made from durable polymer and corrosion-resistant metal materials, this sensor is built to withstand the intense heat of your vehicle’s cooling system. Alloy conductors help minimize electrical resistance for accurate operation and long-lasting reliability.

  • Resolves false "low coolant" indicator light warnings
  • Prevents failure to alert the driver of dangerously low coolant levels
  • Direct-fit OE replacement design for easy installation into the coolant reservoir tank
  • Simple plug-and-play wiring connection for quick installation
  • Manufactured from high-quality polymer and corrosion-resistant metal materials to endure high cooling system temperatures
  • Alloy conductors reduce electrical resistance for precise operation
  • Designed and tested for long-lasting reliability
  • 24 Month Unlimited Mileage Warranty for peace of mind
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Febi Bypass Hose - E12, E23, E24, E28, E3, E32, E34, E9
We Price Match - Give Us A Call or Chat!
Febi - Corporate Logo
T#:382396
Part#: 11531266459
Ships in 4 Business Days
$ 9.17 USD
Free Shipping on orders $49 and up
Water pump to thermostat housing
Hose Clamp 2 5/16" - 3 1/4" - priced each
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:376806
Part#: 54155K23
Ships in 1-2 days
$ 4.99 USD
Free Shipping on orders $49 and up

Hose Clamp 2 5/16" - 3 1/4"

Ensure secure hose connections with the Hose Clamp 2 5/16" - 3 1/4", a versatile and reliable solution for various applications. Crafted from durable materials, this clamp offers superior strength and corrosion resistance. Its adjustable design allows for a snug fit, reducing the risk of leaks and ensuring optimal performance. Upgrade your hose connections with the precision and reliability of the Hose Clamp 2 5/16" - 3 1/4".

  • Versatile and reliable solution for various applications
  • Superior strength and corrosion resistance
  • Adjustable design for a snug fit
  • Reduces risk of leaks for optimal performance
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Genuine BMW - Corporate Logo
T#:46094
Part#: 17119055593
Ships in 4 Business Days
6% off MSRP $ 15.99

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

$ 14.99 USD
Free Shipping on orders $49 and up
6% off MSRP
$ 15.99

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

$ 14.99 USD
Free Shipping on orders $49 and up


Genuine BMW Connector - Service

Victor Reinz - Corporate Logo
T#:580584
Part#: C32348
Ships in 1-3 days
$ 3.99

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

$ 2.99 USD
Free Shipping on orders $49 and up
$ 2.99 USD
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Genuine BMW - Corporate Logo
T#:35785
Part#: 11531272836
Ships in 7 Business Days
$ 21.99 USD
Free Shipping on orders $49 and up
Genuine BMW HOSE
Fits BMW Engines including:
M30


Genuine BMW - Corporate Logo
T#:22310
Part#: 11531266476
Ships in 9 Business Days
$ 11.99 USD
Free Shipping on orders $49 and up
Genuine BMW HOSE.--

This item fits the following BMWs:
BMW 5 Series - 530i

--. Fits BMW Engines including:
M30

CTA Tools - Corporate Logo
T#:641679
Part#: CTAA195
In Stock
$ 9.98 USD
Free Shipping on orders $49 and up
Tests all ethylene glycol solutions with radiator hot or cold
Genuine BMW - Corporate Logo
T#:407580
Part#: 11531271572
Special Order: No Guaranteed ETA
$ 11.99 USD
Free Shipping on orders $49 and up


Genuine BMW - Corporate Logo
T#:22345
Part#: 11611261204
Special Order: No Guaranteed ETA
$ 11.99 USD
Free Shipping on orders $49 and up
Genuine BMW HOSE.--

This item fits the following BMWs:
BMW 3 Series - 3.0si
BMW 5 Series - 530i
BMW 6 Series - 633csi

--. Fits BMW Engines including:
M30

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Genuine BMW - Corporate Logo
T#:22309
Part#: 11531266475
Special Order: No Guaranteed ETA
$ 21.99 USD
Free Shipping on orders $49 and up
Genuine BMW HOSE.--

This item fits the following BMWs:
BMW 5 Series - 530i

--. Fits BMW Engines including:
M30

2 Pin Connector
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:33412932
Part#: 61132359999
In Stock
Sale - Save 25% $ 10.99

This product was last offered at the strikethrough price on
06-14-2026

$ 8.24 USD
Free Shipping on orders $49 and up
Sale - Save 25%
$ 10.99

This product was last offered at the strikethrough price on
06-14-2026

$ 8.24 USD
Free Shipping on orders $49 and up

Includes connector housing with terminals and seals. Commonly used for the coolant level sensor.

ECS Tuning replacement harness connectors include all necessary pins and wire seals for a complete harness repair. Whether you have a broken harness connector or need a complete wiring repair, we have the components you need.

Each connector includes an additional terminal in case one becomes lost or damaged during installation.

*OEM cross reference PN# 61132359999 - Commonly used for the coolant level sensor.

Please reference the original part number from the existing connector to confirm fitment, before ordering.

Suggested tools:

Suggested crimping pliers: T#387193
Wire De-pin tools:
12pc De-Pin Tool Set - T#386379
23pc De-Pin Tool Set - T#641943

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Mahle - Corporate Logo
T#:591826
Part#: 11539055588
Back Ordered
$ 28.99 USD
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$ 28.99 USD
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Stop your overheating problem.

Rein Thermostat 80C - E30 325e, E28 535i, E24 633CSi
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:34114243
Part#: 11531710953
Ships in 1 Business Day
$ 19.99 USD
Free Shipping on orders $49 and up

Thermostat 80C is a crucial component for controlling the temperature in BMW engines, ensuring optimal performance and protection. Designed to open at 80°C, this thermostat helps your engine reach its ideal operating temperature quickly while preventing overheating. Engineered specifically for BMW vehicles, the Thermostat 80C ensures precise temperature regulation, enhancing both engine efficiency and longevity. Available at Turner Motorsport, this direct-fit replacement offers easy installation and reliable performance.

  • Designed for BMW engines for a perfect fit
  • Opens at 80°C to regulate coolant flow and maintain optimal temperature
  • Prevents overheating and improves engine efficiency
  • Manufactured from high-quality, durable materials for long-lasting use
  • Direct-fit replacement ensures hassle-free installation
  • Enhances overall engine performance and longevity

The Thermostat 80C from Turner Motorsport is the perfect choice for BMW owners looking to maintain optimal engine temperature, ensuring smooth operation and extending the life of their vehicle.

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Expansion Tank Cap
For vehicles with production date between 09/1982 and 05/1984
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:362007
Part#: 17114379047
Ships in 1 Business Day
$ 7.99 USD
Free Shipping on orders $49 and up
$ 7.99 USD
Free Shipping on orders $49 and up
1.2 Bar pressure