BMW Cooling System Parts & Accessories for BMW Z3 (1996-2002)

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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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ACM - Corporate Logo
T#:2069
Part#: 17201728770
Ships in 1 Business Day
$ 207.15

This product was last offered at the strikethrough price on
05-11-2026

$ 201.87 USD
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$ 201.87 USD
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This transmission fluid/oil cooler fits E36 318i 318is 318ti 323i 323is 325i 325is 328i 328is M3, E34 525i 530i 1993-1995 and Z3 1.9 2.3 2.5i 2.8 3.0i with automatic transmission.

This oil cooler fits the following BMWs:
1992-1998 E36 BMW 318i 318is 318ti 323is 325i 325is 328i 328is M3
1993-1995 E34 BMW 525i 525i Wagon
1994-1995 E34 BMW 530i 530i Wagon
1996-2002 Z3 BMW Z3 1.9 Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0ibr>
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Mahle-Behr - Corporate Logo
T#:3394
Part#: 17111728907
Ships in 1 Business Day
$ 445.19

This product was last offered at the strikethrough price on
07-15-2026

$ 411.81 USD
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$ 411.81 USD
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E30 318i, is, (M42), E36 318i, ti, Z3 1.9 Radiator - original OEM BEHR. Alternate BMW part number 17111728907

Hailing from Stuttgart, Mahle-Behr specializes in automotive cooling systems. From air conditioning to engine cooling M-B has you covered with OE-quality replacement parts.

This item fits the following BMWs:
1990-1991 E30 BMW 318i 318is 318ic
1992-1998 E36 BMW 318i 318is 318ti 318ic
1997-2002 Z3 BMW Z3 1.9
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Thermostat With Housing
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:582356
Part#: 11537509227
Ships in 1 Business Day
$ 89.99 USD
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$ 89.99 USD
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Stop leaks before they start with this new Thermostat With Housing from Rein.

Mishimoto - Corporate Logo
T#:391574
Part#: MMFS-E36-92
In Stock at Vendor
Starting at $ 332.99 USD
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Starting at $ 332.99 USD
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This electric fan for the E36 takes the place of the stock engine-mounted fan and offers several advantages - more horsepower by removing parasitic drag customizable temp control (with optional fan controller) frame included for a direct fit more reliable than a stock-style fan clutch The stock engine fan is mounted on the water pump shaft and spins with the engine. Torque from the engine is used to spin the fan, which could otherwise be used to power the car. It's not a lot of lost power and torque - Mishimoto measured a max gain of 6whp - but sometimes every little bit helps. And the other advantages of an electric fan make it a smart move. The Mishimoto electric fan uses a 16" slim profile electric fan that flows at 1,850 cubic feet per minute (CFM). The shroud and frame are black powedercoated steel and mounts to existing points on the radiator for a seemless install. Mishimoto has confirmed fitment with stock radiators as well as their own Performance and X-Line aluminum radiators. Hardware and instructions are included. An electric fan must be powered by a 12v source. A fan controller kit is optional and is activated by coolant temp. This is the preferred setup method but other types of controls may also be used. There are two styles of Mishimoto fan controllers - a sensor located in a 1/8" NPT plug or as a 6" probe inserted between the fins on the radiator. For BMW applications, the NPT plug is usually the best and Mishimoto has this port built into their radiator designs (most other aluminum radiators do as well). For the E36, Mishimoto has an optional dedicated wiring harness with a controller that takes power from the factory fuse panel.
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Spal - Corporate Logo
T#:2181323
Part#: FRH
Ships in 3 Business Days
12% off MSRP $ 112.99

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

$ 99.99 USD
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12% off MSRP
$ 112.99

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

$ 99.99 USD
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SPAL® electric fan relay wiring kits are designed to automatically turn on your SPAL® electric fan when the air conditioning is turned on. They can also be used when dual electric fans are installed using one switching device. Features: Makes installation of your new fan a breeze Designed to safely integrate with OEM wiring Feature a waterproof 10/40 amp relay with printed wires for easy installation Harness is designed for 12V systems only Does not included thermo-switch
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Coolant Expansion Tank
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:591949
Part#: 17107514964
Ships in 3 Business Days
$ 80.99 USD
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$ 80.99 USD
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Includes bleeder screw

Mishimoto - Corporate Logo
T#:378443
Part#: MMFAN12
Ships in 3 Business Days
$ 93.99 USD
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$ 93.99 USD
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WARNING! Prop 65 may apply to this product. Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) is a California law that applies to call companies selling products in California. Prop 65 requires any listed chemical present above very low levels that are known to cause cancer, birth defects, or other reproductive harm. For more information about California Prop 65 warning see: www.P65Warnings.ca.gov.
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Spal - Corporate Logo
T#:598818
Part#: 30102113
In Stock at Vendor
$ 257.99 USD
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$ 257.99 USD
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2467 CFM. High performance puller fan with curved blades. This is a universal fan for applications that require more air flow or for engine compartments that have tight tolerances such as an aftermarket turbo set up that needs more clearance. This fan is universal and you must make it fit your application. It is not a direct bolt on. Made in Italy. Size: 16.25in x 15.75in x 3.5in Airflow (CFM): 2467
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Mishimoto - Corporate Logo
T#:378412
Part#: MMFAN12BL
Ships in 3 Business Days
$ 106.99 USD
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$ 106.99 USD
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WARNING! Prop 65 may apply to this product. Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) is a California law that applies to call companies selling products in California. Prop 65 requires any listed chemical present above very low levels that are known to cause cancer, birth defects, or other reproductive harm. For more information about California Prop 65 warning see: www.P65Warnings.ca.gov.
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Genuine BMW Heater Return Hose
For vehicles with production date up to 09/1998
Genuine BMW - Corporate Logo
T#:22318
Part#: 11531433059
Ships in 1 day
2% off MSRP $ 252.00

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

$ 247.00 USD
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2% off MSRP
$ 252.00

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

$ 247.00 USD
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Genuine BMW Heater Return Pipe -
This item fits the following BMW Chassis:
E36,E39

Fits BMW Engines including:
M52,S52

Genuine BMW - Corporate Logo
T#:12997
Part#: 11521723363
Ships in 6 Business Days
3% off MSRP $ 104.99

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

$ 101.99 USD
Free Shipping
3% off MSRP
$ 104.99

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

$ 101.99 USD
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This fan is driven by the belt, engaged by the fan clutch. If you have bad motor mounts, it's quite common for the blades of this fan to make contact with the radiator or radiator shroud, essentially self-destructing the fan into many peices. Be sure to get a new fan clutch, while you are replacing this.

This item fits the following BMWs:
1988-1991 E30 BMW 325e 325es 325i 325ic 325is 325ix
1992-1998 E36 BMW 318i 318is 318ti 318ic
1988 E28 BMW 528e 535i 535is M5
1989-1990 E34 BMW 525i
1988-1989 E24 BMW 635csi M6
1997-1998 Z3 BMW Z3 1.9
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Genuine BMW - Corporate Logo
T#:367654
Part#: 11527831619
Ships in 1 day
3% off MSRP $ 401.99

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

$ 388.99 USD
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3% off MSRP
$ 401.99

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

$ 388.99 USD
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Ensure optimal engine cooling for your BMW with this Fan Clutch, designed to adapt the fan speed based on the engine's rotational speed. Perfect for city driving and traffic, this fan clutch minimizes rotational load and drag when cooling is not critical.

  • Compatible with various BMW models
  • Adjusts fan speed based on engine rotational speed
  • Ideal for city driving and traffic conditions
  • Reduces rotational load and drag when cooling is not critical
  • Enhances engine cooling efficiency
  • Suitable for vehicles with mechanical fans
  • Easy solution for vehicles running hot in traffic

Upgrade your BMW's cooling system with this Fan Clutch, ensuring a cool and efficient engine performance, especially during city driving and traffic stops.

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Genuine BMW - Corporate Logo
T#:367652
Part#: 11527505302
Ships in 3 Business Days
3% off MSRP $ 401.99

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

$ 388.99 USD
Free Shipping
3% off MSRP
$ 401.99

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

$ 388.99 USD
Free Shipping
Genuine BMW - Corporate Logo
T#:36149
Part#: 11537830710
Ships in 1 day
4% off MSRP $ 76.99

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

$ 73.99 USD
Free Shipping
4% off MSRP
$ 76.99

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

$ 73.99 USD
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Genuine BMW Pipe
This item fits the following BMW Chassis:
E46 M3,E85 Z4M,E46,E85 Z4,E86 Z4

Fits BMW Engines including:
S54

Genuine BMW - Corporate Logo
T#:45786
Part#: 17111743455
Ships in 1 day
3% off MSRP $ 108.99

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

$ 105.99 USD
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3% off MSRP
$ 108.99

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

$ 105.99 USD
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Genuine BMW Fan Shroud - A=440X438mm
This item fits the following BMW Chassis:
E36

Fits BMW Engines including:
M44


Genuine BMW - Corporate Logo
T#:12539
Part#: 61318361787
Ships in 3 Business Days
6% off MSRP $ 120.99

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

$ 113.99 USD
Free Shipping
6% off MSRP
$ 120.99

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

$ 113.99 USD
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Engine radiator double temperature fan switch, 80/88 degree celsius. This switch is designed to activate the auxiliary fan at the specified temperatures. A faulty switch can lead to the auxiliary fan not activating, causing over heating.

This item fits the following BMWs:
1987-1991 E30 BMW 318i 318is 318ic 325e 325es 325i 325ic 325is 325ix M3
1992-1995 E36 BMW 318i 318is 318ti 318ic 323is 323ic 325i 325is 325ic M3
1989-1995 E34 BMW 525i 530i 535i 540i M5
1988-1994 E32 BMW 735i 735il 740i 740il 750il
1990-1999 E31 BMW 840i 840ci 850i 850ci 850csi
1996-7/1996 Z3 BMW Z3 1.9
1996-5/1997 Z3 BMW Z3 2.8
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Genuine BMW - Corporate Logo
T#:25137
Part#: 17112227684
Ships in 3 Business Days
3% off MSRP $ 108.99

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

$ 105.99 USD
Free Shipping
3% off MSRP
$ 108.99

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

$ 105.99 USD
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Genuine BMW FAN SHROUD
Fits BMW Engines including:
S54

Genuine BMW Fan Shroud - Z3 2.5 2.8 3.0
For vehicles with production date from 09/1998
Genuine BMW - Corporate Logo
T#:7393
Part#: 17101715321
Ships in 1 day
3% off MSRP $ 156.99

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

$ 152.99 USD
Free Shipping
3% off MSRP
$ 156.99

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

$ 152.99 USD
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Genuine BMW Fan Shroud - 550X423,5X40

Fits BMW Engines including:
M52,M54


Genuine BMW - Corporate Logo
T#:360743
Part#: 17111712835
Ships in 1 day
5% off MSRP $ 141.99

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

$ 134.99 USD
Free Shipping
5% off MSRP
$ 141.99

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

$ 134.99 USD
Free Shipping
Genuine BMW - Corporate Logo
T#:367905
Part#: 17112227281
Ships in 3 Business Days
6% off MSRP $ 756.99

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

$ 713.99 USD
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6% off MSRP
$ 756.99

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

$ 713.99 USD
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Upgrade your BMW Z3 M's cooling system with this genuine replacement radiator. This radiator comes with a drain plug for easy maintenance. Ensure optimal performance by browsing the cooling section for factory-correct coolants, seals, and caps. Before installation, inspect hoses to ensure they are in good condition.

Benefits:

  • Genuine replacement radiator for BMW Z3 M
  • Includes drain plug for easy maintenance
  • Ensures optimal cooling system performance
  • Compatible with factory-correct coolants, seals, and caps
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Genuine BMW - Corporate Logo
T#:20714
Part#: 17102229772
Ships in 2 Business Days
5% off MSRP $ 215.99

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

$ 205.99 USD
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5% off MSRP
$ 215.99

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

$ 205.99 USD
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Replace your damaged expansion tank to prevent coolant loss or potential overheating issues.


This item fits the following BMWs:
BMW M Series - Z3 M Coupe, M Roadster

Fits BMW Engines including:
S54

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Genuine BMW Motorsport - Corporate Logo
T#:1171
Part#: TMS1171
Ships in 6 Business Days
$ 415.45 USD
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$ 415.45 USD
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This is a genuine BMW Motorsport part, designed specifically for BMW racing applications. We use this exact thermostat setup in our Championship-winning E46 330i race car. It is designed to be used on all M54 and M52TU double-VAN0S engines, as used in the 1999-2000 E46 323/328 and 2001-2005 E46 325/330. This 60 degree C (140 defrees F) thermostat comes complete with plastic thermostat housing. It does not use the plug and wiring for the stock DME so this should only be used with an aftermarket engine management system (Motec, Bosch, etc).

When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.
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Febi Radiator Fan Clutch - E34, E36, E39, E46, E53, Z3
We Price Match - Give Us A Call or Chat!
Febi - Corporate Logo
T#:382395
Part#: 11527505302
Ships on Dec 23, 2026
$ 187.99 USD
Free Shipping
$ 187.99 USD
Free Shipping
Common source of engine overheating
Genuine BMW - Corporate Logo
T#:360662
Part#: 11521712058
Ships in 1 day
3% off MSRP $ 104.99

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

$ 101.99 USD
Free Shipping
3% off MSRP
$ 104.99

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

$ 101.99 USD
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Sachs - Corporate Logo
T#:591739
Part#: 11527505302
Back Ordered
$ 231.08 USD
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$ 231.08 USD
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Common source of engine overheating
Genuine BMW - Corporate Logo
T#:368512
Part#: 61318376440
Back Ordered
6% off MSRP $ 120.99

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

$ 113.99 USD
Free Shipping
6% off MSRP
$ 120.99

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

$ 113.99 USD
Free Shipping
Genuine BMW Motorsport - Corporate Logo
T#:337991
Part#: 11531417215
Back Ordered
Starting at $ 233.98 USD
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Starting at $ 233.98 USD
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E46M3 Motorsport Thermostat 55C (Also fits Euro E36 M3 engine) A Genuine BMW part this thermostat opens at a much lower temperature than stock to keep your S54 engine (or Euro S50/S52 engine) running cooler in race applications.
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Spal - Corporate Logo
T#:598797
Part#: 30102029
In Stock
$ 207.99 USD
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$ 207.99 USD
Free Shipping
1328 CFM. High performance puller fan with curved blades. This is a universal fan for applications that require more air flow or for engine compartments that have tight tolerances such as an aftermarket turbo set up that needs more clearance. This fan is universal and you must make it fit your application. It is not a direct bolt on. Made in Italy. Size: 13.25in x 12.5in x 3.5n Airflow (CFM): 1328
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CSF Universal Large Single-Pass Oil Cooler - Universal Application ...
2X Entries Into Our F80 M3 Sweepstakes
Universal fitment design - modifications may be necessary to run this cooler
CSF - Corporate Logo
T#:53608839
Part#: 8371
Ships in 3 Business Days
New Item
$ 499.00 USD
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$ 499.00 USD
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CSF redesigned this cooler and went with a more traditional inlet/outlet orientation. The new single pass design features high efficiency and high durability, but with vertically oriented inlet and outlet connections.
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ATD Tools - Corporate Logo
T#:3629267
Part#: ATD3300
Ships in 6 Business Days
$ 497.99 USD
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$ 497.99 USD
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Adapters for most European and domestic vehicles

Mishimoto - Corporate Logo
T#:378434
Part#: MMFAN10
Ships in 3 Business Days
$ 88.99 USD
Free Shipping
$ 88.99 USD
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WARNING! Prop 65 may apply to this product. Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) is a California law that applies to call companies selling products in California. Prop 65 requires any listed chemical present above very low levels that are known to cause cancer, birth defects, or other reproductive harm. For more information about California Prop 65 warning see: www.P65Warnings.ca.gov.
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Genuine BMW - Corporate Logo
T#:374427
Part#: 17111723520KT2
Ships in 1 day
$ 400.99

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

$ 395.99 USD
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$ 395.99 USD
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Genuine BMW - Corporate Logo
T#:368739
Part#: 64508372039
Ships in 2 Business Days
3% off MSRP $ 666.99

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

$ 649.99 USD
Free Shipping
3% off MSRP
$ 666.99

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

$ 649.99 USD
Free Shipping