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BMW E90 Engine Cooling Parts

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O-Ring - Priced Each

ES#24048 - 11427558936 - O-Ring - Priced Each - Used to seal the oil and water lines for the turbochargers - Genuine BMW - BMW

Used to seal the oil and water lines for the turbochargers affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
24048
Mfg#:
11427558936
In Stock
$6.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Race German Coolant Temperature Sender Adapter - 1/8NPT

ES#4493067 - RGCTSA1/8NPT - Race German Coolant Temperature Sender Adapter - 1/8NPT - Splice into your cooling system to add an aftermarket coolant temperature sensor and gauge! - Race German - BMW

Splice into your cooling system to add an aftermarket coolant temperature sensor and gauge! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Race German - Corporate Logo
ES#:
4493067
Mfg#:
RGCTSA1/8NPT
Ships in 3 Business Days
$35.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Auxiliary Fan Switch

ES#1866446 - 13621433077 - Auxiliary Fan Switch - Comes with related o-ring - FAE - BMW

Comes with related o-ring affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
FAE - Corporate Logo
ES#:
1866446
Mfg#:
13621433077
In Stock
$22.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

N55 Performance Silicone Radiator Hoses

ES#4920922 - 018739LA01 - N55 Performance Silicone Radiator Hoses - Retains OEM fitment with superior looks and durability. Reuse your factory connectors for easy installation! - ECS - BMW

Retains OEM fitment with superior looks and durability. Reuse your 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#:
4920922
Mfg#:
018739LA01
In Stock
$117.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Turner Motorsport Expansion Tank Wire Harness Extension - E9X/E8X N54

ES#3569509 - 021942TMS05 - Turner Motorsport Expansion Tank Wire Harness Extension - E9X/E8X N54 - Allows you to relocate your coolant reservoir seamlessly - Turner Motorsport - BMW

Allows you to relocate your coolant reservoir seamlessly affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
3569509
Mfg#:
021942TMS05
In Stock
ON SALE! SAVE 36%
$25.99

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

$16.73 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Flange

ES#249028 - 11127806196 - Coolant Flange - Located on the left side of the engine - Genuine BMW - BMW

Located on the left side of the engine affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
249028
Mfg#:
11127806196
In Stock
5% off MSRP

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

$36.99

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

$34.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Hose Connector

ES#4877194 - 11537545890PRMK - Coolant Hose Connector - Metal Connector vs OEM Plastic - URO Premium - BMW

Metal Connector vs OEM Plastic affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
URO Premium - Corporate Logo
ES#:
4877194
Mfg#:
11537545890PRMK
In Stock
$24.99 USD
Free Shipping
on orders $49 and up

Thermostat Replacement Kit

ES#2718469 - 11537836155KT1 - Thermostat Replacement Kit - Includes thermostat with o-ring, and coolant - Assembled By ECS - BMW

Includes thermostat with o-ring, and coolant 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#:
2718469
Mfg#:
11537836155KT1
In Stock
ON SALE!
$104.99

This product was last offered at the strikethrough price on
01-03-2026

$99.87 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Thermostat

ES#2813514 - 11537549476 - Thermostat - Restore proper function to your cooling system - Hamburg Tech - BMW

Restore proper function to your cooling system 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#:
2813514
Mfg#:
11537549476
Ships in 2 Business Days
$76.99

This product was last offered at the strikethrough price on
04-07-2026

$75.99 USD
Free Shipping
on orders $49 and up

ECS Cooling System Refresh Kit - Level 2

ES#2597712 - 11537558522KT - ECS Cooling System Refresh Kit - Level 2 - A more advanced refresh kit - with primary cooling system hoses and accessory belt - Assembled By ECS - BMW

A more advanced refresh kit - with primary cooling system hoses and accessory belt affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with manual transmission only

Brand:
Assembled By ECS - Corporate Logo
ES#:
2597712
Mfg#:
11537558522KT
Back Ordered
Auto Notify
ON SALE! SAVE 19%
$830.99

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

$670.38 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

ECS Cooling System Refresh Kit - Level 2

ES#4772370 - 11537558523KT - ECS Cooling System Refresh Kit - Level 2 - Assembled By ECS - BMW

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#:
4772370
Mfg#:
11537558523KT
Back Ordered
Auto Notify
ON SALE! SAVE 19%
$829.99

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

$669.95 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Heater Hose - Supply

ES#2801544 - 64219178427 - Heater Hose - Supply - Rein - BMW

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#:
2801544
Mfg#:
64219178427
In Stock at Vendor
$75.99

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

$73.99 USD
Free Shipping
on orders $49 and up

Coolant Hose Assembly

ES#38442 - 17127548223 - Coolant Hose Assembly - Located across the front of the engine bay - Genuine BMW - BMW

Located across the front of the engine bay affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For manual transmission models only

Brand:
Genuine BMW - Corporate Logo
ES#:
38442
Mfg#:
17127548223
Ships in 1-2 days
3% off MSRP

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

$225.99

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

$219.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Water Hose With Gasket - Water Pump To Engine Inlet

ES#4689906 - 11537584630r - Water Hose With Gasket - Water Pump To Engine Inlet - Prevents leaks and comebacks from reusing old connectors and o-rings. - Rein - BMW

Prevents leaks and comebacks from reusing old connectors and o-rings. 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#:
4689906
Mfg#:
11537584630R
Ships in 1 Business Day
$40.99 USD
Free Shipping
on orders $49 and up

Expansion Tank To Upper Radiator Hose

ES#4842757 - 17127803838 - Expansion Tank To Upper Radiator Hose - Carries coolant to the overflow tank - Bremmen Parts - BMW

Carries coolant to the overflow tank affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4842757
Mfg#:
17127803838
In Stock
ON SALE! SAVE 20%
$42.99

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

$34.26 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E9X M3 Radiator Hose - Lower

ES#3141678 - 11537840661 - E9X M3 Radiator Hose - Lower - Connects the radiator to the thermostat housing - Rein - BMW

Connects the radiator to the thermostat housing 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#:
3141678
Mfg#:
11537840661
In Stock
$49.99 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

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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