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BMW Engine Cooling Parts

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Electronic Thermostat and Coolant Distribution Module

ES#2993814 - 11537642854 - Electronic Thermostat and Coolant Distribution Module - Thermostat controlled by the ECU for precise temperature control. - Genuine BMW - BMW

Thermostat controlled by the ECU for precise temperature control. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2993814
Mfg#:
11537642854
Ships in 1 day
6% off MSRP

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

$603.99

This product was last offered at the strikethrough price on
06-04-2026

$566.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Aluminum Coolant Hose Flange

ES#3988529 - CHC0609 - Aluminum Coolant Hose Flange - Upgraded metal flange for water hoses - Rein - BMW

Upgraded metal flange for water hoses affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
3988529
Mfg#:
CHC0609
In Stock
$36.06 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Thermostat - 90C

ES#4147761 - 11531436386 - Performance Thermostat - 90C - Comes with aluminum housing, o-ring & sensor - Bremmen Parts - BMW

Comes with aluminum housing, o-ring & sensor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Low-temp thermostat reduces stresses on engine components and improves performance

Brand:
Bremmen Parts - Corporate Logo
ES#:
4147761
Mfg#:
11531436386
In Stock
ON SALE! SAVE 20%
$93.99

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

$75.06 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Aluminum Coolant Hose Connector w/ Temp Sensor

ES#4891822 - CHK0940 - Aluminum Coolant Hose Connector w/ Temp Sensor - Aluminum Connector, Gasket, and Temperature Sensor - Rein - BMW

Aluminum Connector, Gasket, and Temperature Sensor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4891822
Mfg#:
CHK0940
In Stock
$73.99 USD
Free Shipping
on orders $49 and up

ECS Cooling System Refresh Kit - Level 1

ES#263518 - ECSE461711-1 - ECS Cooling System Refresh Kit - Level 1 - Contains the components that commonly fail in your cooling system - featuring aftermarket contents - Assembled By ECS - BMW

Contains the components that commonly fail in your cooling system - featuring aftermarket contents affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
263518
Mfg#:
ECSE461711-1
In Stock
ON SALE!
$337.99

This product was last offered at the strikethrough price on
02-27-2026

$322.77 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Thermostat

ES#2562599 - 11537549476 - Thermostat - Restore proper function to your cooling system - Mahle-Behr - BMW
ECS Tuning recommends this product.

Restore proper function to your cooling system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Mahle-Behr - Corporate Logo
ES#:
2562599
Mfg#:
11537549476
In Stock
$135.99

This product was last offered at the strikethrough price on
06-03-2026

$108.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

N52 Exact-Fit Silicone Radiator Hoses

ES#4877083 - 008641LA03 - N52 Exact-Fit Silicone Radiator Hoses - Retains OEM fitment with superior looks and durability. Pre-assembled with factory connectors for easy installation! - ECS - BMW
ECS Tuning recommends this product.

Retains OEM fitment with superior looks and durability. Pre-assembled with factory connectors for easy installation! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

For Vehicles With Engine Code N52B30 (Non-SULEV w/o Auxiliary Heating)

Brand:
ECS - Corporate Logo
ES#:
4877083
Mfg#:
008641LA03
In Stock
ON SALE!
$127.99

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

$124.15 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Water Pump And Thermostat

ES#4820923 - 11517588885KT - Water Pump And Thermostat - Featuring Hamburg Technic Coolant Pump & Thermostat with hardware - Hamburg Tech - BMW

Featuring Hamburg Technic Coolant Pump & Thermostat with hardware affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
4820923
Mfg#:
11517588885KT
In Stock
$459.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator

ES#2570181 - 17117562079 - Radiator - For vehicles with automatic transmission - Mahle-Behr - BMW

For vehicles with automatic transmission affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with Automatic Transmissions only

Brand:
Mahle-Behr - Corporate Logo
ES#:
2570181
Mfg#:
17117562079
In Stock
$278.00

This product was last offered at the strikethrough price on
03-13-2026

$187.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

N54/N55 BMW Automatic Transmission Cooler - 335

ES#4368587 - N54N55TransCool - N54/N55 BMW Automatic Transmission Cooler - 335 - Keep your automatic transmission temperatures under control - Burger Motorsports - BMW

Keep your automatic transmission temperatures under control affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Burger Motorsports - Corporate Logo
ES#:
4368587
Mfg#:
N54N55TRANSCOOL
In Stock
$444.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Radiator - For Manual Transmission

ES#3545369 - 3716 - Radiator - For Manual Transmission - Standard replacement radiator - CSF - BMW

Standard replacement radiator affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CSF - Corporate Logo
ES#:
3545369
Mfg#:
3716
In Stock
$109.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

N55 Exact-Fit Silicone Expansion Tank Hose

ES#4877300 - 006402LA03 - N55 Exact-Fit Silicone Expansion Tank Hose - Connects the coolant expansion tank to the upper radiator hose. Featuring durable silicone construction & pre-installed factory connectors for easy installation! - ECS - BMW

Connects the coolant expansion tank to the upper radiator hose. Featuring durable silicone construction & pre-installed factory connectors for easy installation! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4877300
Mfg#:
006402LA03
In Stock
ON SALE! SAVE 30%
$101.99

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

$71.39 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Water Pump

ES#2568634 - 11517838159 - Water Pump - Stop your cooling problems before they start - German-made pump featuring a metal impeller - Geba - BMW
ECS Tuning recommends this product.

Stop your cooling problems before they start - German-made pump featuring a metal impeller affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Geba - Corporate Logo
ES#:
2568634
Mfg#:
11517838159
In Stock
$245.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

N55 Heavy Duty Aluminum Expansion Tank Kit

ES#4817875 - 050610LA02 - N55 Heavy Duty Aluminum Expansion Tank Kit - The last expansion tank you'll ever need! Upgrade to durable aluminum construction and leave failure-prone plastic behind. - Turner Motorsport - BMW
ECS Tuning recommends this product.

The last expansion tank you'll ever need! Upgrade to durable aluminum construction and leave failure-prone plastic behind. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
4817875
Mfg#:
050610LA02
Ships on Aug 14, 2026
Auto Notify
ON SALE! SAVE 30%
$448.99

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

$314.29 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Pentofrost Coolant - 1 Gallon (3.78 Liters)

ES#4845732 - 8114308 - Pentofrost Coolant - 1 Gallon (3.78 Liters) - Blue G11/G48 Coolant Pre-Mixed 50/50 - Pentosin - BMW Mercedes Benz MINI

Blue G11/G48 Coolant Pre-Mixed 50/50 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Pentosin - Corporate Logo
ES#:
4845732
Mfg#:
8114308
In Stock
$20.99 USD
Free Shipping
on orders $49 and up

Performance Thermostat - 90C

ES#2807159 - 11537586885-90C - Performance Thermostat - 90C - Includes housing and sealing o-ring - Hamburg Tech - BMW

Includes housing and sealing o-ring affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat! Low-temp thermostat reduces stresses on engine components and improves performance

Brand:
Hamburg Tech - Corporate Logo
ES#:
2807159
Mfg#:
11537586885-90C
In Stock
$117.99

This product was last offered at the strikethrough price on
12-11-2025

$114.99 USD
Free Shipping
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.

Other BMW Engine Cooling Parts

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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