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BMW M3 Engine Cooling Parts

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Engine Coolant Expansion Tank Cap

ES#4732065 - 17135A1BD89 - Engine Coolant Expansion Tank Cap - Replacement expansion tank cap for your BMW - Genuine BMW - BMW

Replacement expansion tank cap for your BMW

Brand:
Genuine BMW - Corporate Logo
ES#:
4732065
Mfg#:
17135A1BD89
In Stock
6% off MSRP

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

$34.99

This product was last offered at the strikethrough price on
09-04-2026

$32.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fan Relay

ES#2578458 - 61369198302 - Fan Relay - 130A - Genuine BMW - BMW MINI

130A

Brand:
Genuine BMW - Corporate Logo
ES#:
2578458
Mfg#:
61369198302
In Stock
2% off MSRP

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

$49.99

This product was last offered at the strikethrough price on
09-04-2026

$48.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Aluminum Water Pump Pulley

ES#2992240 - 002778ECS01 - Aluminum Water Pump Pulley - Finally, a durable water pump pulley that won't break! - ECS - BMW

Finally, a durable water pump pulley that won't break! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
2992240
Mfg#:
002778ECS01
Ships on Dec 18, 2026
Auto Notify
ON SALE! SAVE 10%
$100.99

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

$90.89 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Fluid Level Sensor

ES#2874178 - 17137553919 - Fluid Level Sensor - This sensor is used in multiple locations, depending on model: coolant level, washer level, and power steering level - Febi - BMW MINI

This sensor is used in multiple locations, depending on model: coolant level, washer level, and power steering level We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2874178
Mfg#:
17137553919
In Stock
$18.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E46 M3 Radiator Hose - Upper

ES#25173 - 11537830716 - E46 M3 Radiator Hose - Upper - Connects the radiator to the thermostat housing - Genuine BMW - BMW

Connects the radiator to the thermostat housing

Brand:
Genuine BMW - Corporate Logo
ES#:
25173
Mfg#:
11537830716
Ships in 1-2 days
$65.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oil Cooler replacement Kit

ES#3168446 - 17212284540KT1 - Oil Cooler replacement Kit - Includes new oil cooler, belly pans, hardware and a oil change kit! - Genuine BMW - BMW

Includes new oil cooler, belly pans, hardware and a oil change kit! For vehicles with a production date from 09/2014

Brand:
Genuine BMW - Corporate Logo
ES#:
3168446
Mfg#:
17212284540KT1
Ships in 2 Business Days
$1253.55

This product was last offered at the strikethrough price on
08-17-2026

$1251.40 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Thermostat - 105C

ES#205475 - 11537586885 - Thermostat - 105C - Includes housing and sealing o-ring - Genuine BMW - BMW

Includes housing and sealing o-ring

Brand:
Genuine BMW - Corporate Logo
ES#:
205475
Mfg#:
11537586885
In Stock
8% off MSRP

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

$135.99

This product was last offered at the strikethrough price on
05-06-2026

$124.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Replacement Kit

ES#2718468 - 11537836155KT - Thermostat Replacement Kit - Includes thermostat with o-ring, and coolant - Genuine BMW - BMW

Includes thermostat with o-ring, and coolant

Brand:
Genuine BMW - Corporate Logo
ES#:
2718468
Mfg#:
11537836155KT
Ships in 1-2 days
$176.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

E30 M3 Oil Cooler Line

ES#38854 - 17222225806 - E30 M3 Oil Cooler Line - Long line - fits right (passenger) side of oil cooler - Genuine BMW - BMW

Long line - fits right (passenger) side of oil cooler

Brand:
Genuine BMW - Corporate Logo
ES#:
38854
Mfg#:
17222225806
Ships in 1-2 days
1% off MSRP

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

$154.99

This product was last offered at the strikethrough price on
09-04-2026

$153.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Turner M50 Water Temp Sensor Adapter (Bosch Management With S52-M52)

ES#3006373 - TEN9989M50 - Turner M50 Water Temp Sensor Adapter (Bosch Management With S52-M52) - Plug-&-Play OBD1 water temp sensor upgrade - Turner Motorsport - BMW

Plug-&-Play OBD1 water temp sensor upgrade 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Turner Motorsport - Corporate Logo
ES#:
3006373
Mfg#:
TEN9989M50
In Stock
ON SALE! SAVE 25%
$89.99

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

$67.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Aluminum Thermostat Housing

ES#205285 - 11531722531 - Aluminum Thermostat Housing - Aluminum construction for improved durability over stock design! For your M50, M52, S50, or S54 Engine. - URO Premium - BMW
ECS Tuning recommends this product.

Aluminum construction for improved durability over stock design! For your M50, M52, S50, or S54 Engine. 2X Entries Into Our F80 M3 Sweepstakes

Brand:
URO Premium - Corporate Logo
ES#:
205285
Mfg#:
11531722531
In Stock
$21.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Level Sensor

ES#4316496 - 61318360855 - Coolant Level Sensor - Monitors the coolant level in the expansion tank - Bavarian Autosport - BMW

Monitors the coolant level in the expansion tank 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bavarian Autosport - Corporate Logo
ES#:
4316496
Mfg#:
61318360855
In Stock
ON SALE! SAVE 19%
$20.99

This product was last offered at the strikethrough price on
05-02-2026

$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Universal Oil Cooler - 19 Row, with Thermostat

ES#2764437 - MM0CULT - Universal Oil Cooler - 19 Row, with Thermostat - Serious engine oil cooling for the most demanding engines - Mishimoto - Audi BMW Volkswagen MINI

Serious engine oil cooling for the most demanding engines For custom applications only. Not a direct bolt on.

Brand:
Mishimoto - Corporate Logo
ES#:
2764437
Mfg#:
MM0CULT
In Stock at Vendor
$599.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Universal Oil Cooler - 19 Row, with Thermostat - Black

ES#2764104 - MM0CULTBK - Universal Oil Cooler - 19 Row, with Thermostat - Black - Serious engine oil cooling for the most demanding engines - Mishimoto - Audi BMW Volkswagen MINI

Serious engine oil cooling for the most demanding engines For custom applications only. Not a direct bolt on.

Brand:
Mishimoto - Corporate Logo
ES#:
2764104
Mfg#:
MM0CULTBK
Ships in 3 Business Days
$599.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cooling System Refresh Kit - Level 1

ES#2497335 - 17127510952KT - Cooling System Refresh Kit - Level 1 - Contains the components that commonly fail in your cooling system - featuring OEM contents - Genuine BMW - BMW

Contains the components that commonly fail in your cooling system - featuring OEM contents

Brand:
Genuine BMW - Corporate Logo
ES#:
2497335
Mfg#:
17127510952KT
Ships in 1-2 days
$1197.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

E36 Add-On Aluminum Radiator Shroud And Expansion Tank

ES#4876081 - AASET - E36 Add-On Aluminum Radiator Shroud And Expansion Tank - Turn your Zionsville Autosport e36 Alloy Radiator into a Competition Kit! - Zionsville Autosport - BMW

Turn your Zionsville Autosport e36 Alloy Radiator into a Competition Kit!

Brand:
Zionsville Autosport - Corporate Logo
ES#:
4876081
Mfg#:
AASET
In Stock
Limited Qty Sale
$425.00

This product was last offered at the strikethrough price on
08-04-2026

$396.99 USD
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Cooling Parts

Optimize your engine cooling system performance and heater output with quality drive belts, coolant hoses, cooling system parts, and approved coolant fluids from ECS Tuning. Head off expensive repairs and untimely breakdowns with regularly scheduled cooling system inspection and maintenance.

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