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BMW E46 Engine Cooling Parts

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Thermostat - 80°C

ES#10939 - 11531318274 - Thermostat - 80C - Restore your cooling performance with a brand new thermostat - Wahler - BMW

Restore your cooling performance with a brand new thermostat affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Wahler - Corporate Logo
ES#:
10939
Mfg#:
11531318274
In Stock at Vendor
$105.36

This product was last offered at the strikethrough price on
06-02-2026

$80.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Assembly With Aluminum Housing

ES#4877251 - 11537509227PRM - Thermostat Assembly With Aluminum Housing - Aluminum Housing vs OEM Plastic - includes Thermostat & Gasket - URO Premium - BMW

Aluminum Housing vs OEM Plastic - includes Thermostat & Gasket 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#:
4877251
Mfg#:
11537509227PRM
In Stock
$89.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E46 Radiator - Automatic

ES#2575612 - 17119071519 - E46 Radiator - Automatic - Replace your leaking radiator - Nissens - BMW
ECS Tuning recommends this product.

Replace your leaking radiator We Price Match - Give Us A Call or Chat! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with automatic transmission only

Brand:
Nissens - Corporate Logo
ES#:
2575612
Mfg#:
17119071519
In Stock
$173.39

This product was last offered at the strikethrough price on
06-02-2026

$169.24 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Water Pipe

ES#25061 - 11537502525 - Water Pipe - Connects return hose to engine block - Genuine BMW - BMW

Connects return hose to engine block affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
25061
Mfg#:
11537502525
In Stock
$90.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

E46 Coolant Expansion Tank

ES#3504768 - 17117573781 - E46 Coolant Expansion Tank - Includes cap and level sensor - Rein - BMW

Includes cap and level 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#:
3504768
Mfg#:
17117573781
In Stock
$76.39 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator

ES#3023887 - 17119071518 - Radiator - Replace your leaking radiator - Mahle-Behr - BMW

Replace your leaking radiator affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For manual transmission only.

Brand:
Mahle-Behr - Corporate Logo
ES#:
3023887
Mfg#:
17119071518
In Stock at Vendor
$345.99

This product was last offered at the strikethrough price on
12-17-2025

$249.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Race German Lightweight Aluminum Water Pump Pulley

ES#4780379 - M5XLTWWPP - Race German Lightweight Aluminum Water Pump Pulley - Race German - BMW

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

Brand:
Race German - Corporate Logo
ES#:
4780379
Mfg#:
M5XLTWWPP
Back Ordered
$59.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Fan Clutch

ES#205243 - 11527831619 - Radiator Fan Clutch - Direct replacement - Mahle-Behr - BMW
ECS Tuning recommends this product.

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

Brand:
Mahle-Behr - Corporate Logo
ES#:
205243
Mfg#:
11527831619
In Stock
$277.99

This product was last offered at the strikethrough price on
04-14-2026

$172.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Universal 16" Electric Fan - Black

ES#2652188 - 30102049 - Universal 16" Electric Fan - Black - 2024 CFM. High performance puller fan with curved blades. - Spal - Audi BMW MINI

2024 CFM. High performance puller fan with curved blades. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Spal - Corporate Logo
ES#:
2652188
Mfg#:
30102049
In Stock
$207.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Cooling System Refresh Kit - Level 3

ES#4908058 - 008682LA02-RF3KT - Performance Cooling System Refresh Kit - Level 3 - An all-inclusive service and upgrade kit, featuring high-performance components for increased cooling capacity! - Assembled By ECS - BMW

An all-inclusive service and upgrade kit, featuring high-performance components for increased cooling capacity! 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#:
4908058
Mfg#:
008682LA02-RF3KT
Back Ordered
Auto Notify
ON SALE! SAVE 13%
$1748.31

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

$1521.72 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

BMW Fan Clutch Wrench Set

ES#4000865 - CTAA886L - BMW Fan Clutch Wrench Set - 32mm Wrench removes the lock nuts on the thermo-viscous fan, while the other holds the water pump pulley while loosening the radiator fan - CTA Tools - BMW

32mm Wrench removes the lock nuts on the thermo-viscous fan, while the other holds the water pump pulley while loosening the radiator fan affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CTA Tools - Corporate Logo
ES#:
4000865
Mfg#:
CTAA886L
In Stock
$48.58 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank With Cap, Sensor, And Lower Securing Clamp

ES#3690750 - 17137787039KT - Coolant Expansion Tank With Cap, Sensor, And Lower Securing Clamp - Don't waste time replacing just the tank, replace it all at once to avoid down time with your BMW - Hamburg Tech - BMW

Don't waste time replacing just the tank, replace it all at once to avoid down time with your BMW 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#:
3690750
Mfg#:
17137787039KT
In Stock
$57.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Cooling System Refresh Kit - Level 3 plus

ES#4905689 - 17119071519GKT3 - ECS Cooling System Refresh Kit - Level 3 plus - The ultimate cooling refresh kit - with aftermarket components, featuring an ECS Aluminum Pulley, Stewart water pump and Aluminum Radiator - Assembled By ECS - BMW

The <font color='red'> ultimate</font> cooling refresh kit - with aftermarket components, featuring an ECS Aluminum Pulley, Stewart water pump and Aluminum Radiator affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For Manual Vehicles Only!

Brand:
Assembled By ECS - Corporate Logo
ES#:
4905689
Mfg#:
17119071519GKT3
Ships in 5 Business Days
ON SALE!
$1439.99

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

$1401.78 USD
This product is lifetime replacement eligible Partial Replacement

E46 M3 Coolant Expansion Tank

ES#38023 - 17112283344 - E46 M3 Coolant Expansion Tank - Plastic expansion tank, including sealing cap - Genuine BMW - BMW

Plastic expansion tank, including sealing cap affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
38023
Mfg#:
17112283344
In Stock
7% off MSRP

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

$215.23

This product was last offered at the strikethrough price on
03-30-2026

$199.98 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Silicone Radiator Hose Kit

ES#2748020 - 003631ECS01 - Silicone Radiator Hose Kit - Retains OEM fitment with superior looks and durability! - ECS - BMW

Retains OEM fitment with superior looks and durability! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Includes new connectors - don't reuse brittle, high mileage plastic connectors!

Brand:
ECS - Corporate Logo
ES#:
2748020
Mfg#:
003631ECS01
In Stock
ON SALE! SAVE 25%
$194.99

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

$146.24 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Auxiliary Puller Fan Assembly

ES#2814088 - 17117561757 - Auxiliary Puller Fan Assembly - Cooling fan mounted behind the radiator - Hamburg Tech - BMW

Cooling fan mounted behind the radiator affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
For vehicles with production date from 10/1998

Brand:
Hamburg Tech - Corporate Logo
ES#:
2814088
Mfg#:
17117561757
In Stock
$187.99 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.

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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