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BMW 328i Engine Cooling Parts

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Engine Coolant Temperature Sensor

ES#4708443 - 221905560080 - Engine Coolant Temperature Sensor - Environmental Air Catalyst Sensor on Radiator Only - URO - BMW Mercedes Benz MINI

Environmental Air Catalyst Sensor on Radiator Only 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4708443
Mfg#:
221905560080
In Stock
ON SALE!
$134.99

This product was last offered at the strikethrough price on
06-25-2026

$128.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fan Shroud

ES#37880 - 17111723031 - Fan Shroud - Maintain proper air flow - Genuine BMW - BMW

Maintain proper air flow

Brand:
Genuine BMW - Corporate Logo
ES#:
37880
Mfg#:
17111723031
In Stock
1% off MSRP

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

$108.24

This product was last offered at the strikethrough price on
07-20-2026

$106.96 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#2718215 - 17137640514 - Coolant Expansion Tank - Includes level sensor - Genuine BMW - BMW

Includes level sensor

Brand:
Genuine BMW - Corporate Logo
ES#:
2718215
Mfg#:
17137640514
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.

$189.99

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

$178.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Water Pump & Thermostat Kit

ES#4818358 - 11517527799KT - Performance Water Pump & Thermostat Kit - Featuring a high-performance Stewart water pump and low-temp Mishimoto thermostat with aluminum housing! - Assembled By ECS - BMW

Featuring a high-performance Stewart water pump and low-temp Mishimoto thermostat with aluminum housing! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
4818358
Mfg#:
11517527799KT
In Stock
$357.99

This product was last offered at the strikethrough price on
06-15-2026

$338.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Radiator

ES#3545375 - 3725 - Radiator - Standard OE style replacement radiator - CSF - BMW

Standard OE style replacement radiator 2X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with automatic transmission (S205A) or sport automatic transmission (S2TBA) only

Brand:
CSF - Corporate Logo
ES#:
3545375
Mfg#:
3725
In Stock
$95.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Complete Cooling System Hose Kit

ES#4315899 - 11531436408KT2 - Complete Cooling System Hose Kit - A complete hose kit including coolant and ECS Silicone radiator hoses! - Assembled By ECS - BMW

A complete hose kit including coolant and ECS Silicone radiator hoses! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
4315899
Mfg#:
11531436408KT2
Ships on Aug 19, 2026
Auto Notify
ON SALE! SAVE 19%
$399.99

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

$325.16 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Expansion Tank Vent Hose

ES#3499695 - 17127618510 - Expansion Tank Vent Hose - Connects to the top of the expansion tank and the upper radiator hose - Rein - BMW

Connects to the top of the expansion tank and the upper radiator hose 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
3499695
Mfg#:
17127618510
In Stock
$32.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat With Housing

ES#25078 - 11537509227 - Thermostat With Housing - A common item to crack causing leaks - Genuine BMW - BMW

A common item to crack causing leaks

Brand:
Genuine BMW - Corporate Logo
ES#:
25078
Mfg#:
11537509227
In Stock
3% off MSRP

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

$174.45

This product was last offered at the strikethrough price on
07-20-2026

$169.69 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Mounting Plate

ES#4304678 - 17111436251 - Expansion Tank Mounting Plate - Mounts to the side of the radiator for retaining the expansion tank - Bavarian Autosport - BMW

Mounts to the side of the radiator for retaining the expansion tank 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with an automatic transmission only

Brand:
Bavarian Autosport - Corporate Logo
ES#:
4304678
Mfg#:
17111436251
In Stock
ON SALE! SAVE 20%
$45.99

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

$36.79 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Universal 16" Electric Fan - Black

ES#2764562 - MMFAN16 - Universal 16" Electric Fan - Black - 1934 CFM - 10.8 amps at 12.14 volts - Mishimoto - Audi BMW Volkswagen MINI

1934 CFM - 10.8 amps at 12.14 volts

Brand:
Mishimoto - Corporate Logo
ES#:
2764562
Mfg#:
MMFAN16
In Stock
$115.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Mounting Plate

ES#4304676 - 17111436250 - Expansion Tank Mounting Plate - Mounts to the side of the radiator for retaining the expansion tank - Bavarian Autosport - BMW

Mounts to the side of the radiator for retaining the expansion tank 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with a manual transmission only

Brand:
Bavarian Autosport - Corporate Logo
ES#:
4304676
Mfg#:
17111436250
In Stock
ON SALE! SAVE 20%
$44.99

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

$35.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

BMW Coolant / Antifreeze - 1 Gallon (3.78L) - Blue G48

ES#4876763 - 82141467704 - BMW Coolant / Antifreeze - 1 Gallon (3.78L) - Blue G48 - 100% strength concentrate - dilute to a 50:50 ratio with distilled water - Zerex - BMW

100% strength concentrate - dilute to a 50:50 ratio with distilled water For Vehicles Produced Up To 2018

Brand:
Zerex - Corporate Logo
ES#:
4876763
Mfg#:
82141467704
In Stock
$24.47

This product was last offered at the strikethrough price on
07-10-2026

$24.43 USD
Free Shipping
on orders $49 and up

Water Pump - N20

ES#4872227 - 11517597715 - Water Pump - N20 - Externally mounted cooling system water pump - Geba - BMW

Externally mounted cooling system water pump

Brand:
Geba - Corporate Logo
ES#:
4872227
Mfg#:
11517597715
In Stock
$343.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Fan Housing

ES#2797838 - 17428641964 - Radiator Fan Housing - Includes fan. 600w - Genuine BMW - BMW

Includes fan. 600w

Brand:
Genuine BMW - Corporate Logo
ES#:
2797838
Mfg#:
17428641964
Ships in 7 Business Days
6% off MSRP

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

$1083.99

This product was last offered at the strikethrough price on
07-20-2026

$1017.99 USD
This product is lifetime replacement eligible Lifetime Replacement

M50/M52/S52 Heavy Duty Aluminum Coolant Expansion Tank Kit

ES#4619758 - 008348la01bKT - M50/M52/S52 Heavy Duty Aluminum Coolant Expansion Tank Kit - As expansion tanks age, they are prone to cracking or even exploding. Replace your factory plastic coolant reservoir with a Turner Heavy Duty aluminum tank for durability and piece of mind! Direct replacement for expansion tank 17111723520. - Turner Motorsport - BMW
ECS Tuning recommends this product.

As expansion tanks age, they are prone to cracking or even exploding. Replace your factory plastic coolant reservoir with a Turner Heavy Duty aluminum tank for durability and piece of mind! Direct replacement for expansion tank 17111723520. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
4619758
Mfg#:
008348LA01BKT
In Stock
ON SALE! SAVE 20%
$423.99

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

$339.19 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Performance Coolant Outlet Hose Kit

ES#4164361 - 004520LA01 - ECS Performance Coolant Outlet Hose Kit - The factory connection point is brittle and cracks, leaving your BMW leaking coolant. Replace yours with a durable billet connection and silicone hose for less than a Genuine BMW replacement! - ECS - BMW

The factory connection point is brittle and cracks, leaving your BMW leaking coolant. Replace yours with a durable billet connection and silicone hose for less than a Genuine BMW replacement! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4164361
Mfg#:
004520LA01
In Stock
ON SALE! SAVE 25%
$109.99

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

$82.49 USD
Free Shipping
on orders $49 and up
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.

Let us help you find the parts that fit your BMW

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Manufacturer names and/or part numbers are used only for identification purposes.

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