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BMW E46 Engine Cooling Parts

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O-Ring - Priced Each

ES#38867 - 17222245358 - O-Ring - Priced Each - 13, 4X1.78 - Genuine BMW - BMW MINI

13, 4X1.78

Brand:
Genuine BMW - Corporate Logo
ES#:
38867
Mfg#:
17222245358
In Stock
$3.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Cooling System Refresh Kit - Level 1

ES#4876924 - 008682LA02-RF1KT - Performance Cooling System Refresh Kit - Level 1 - An entry-level service kit featuring high-performance cooling system components. Eliminate common failure points and increase cooling system efficiency! - Assembled By ECS - BMW

An entry-level service kit featuring high-performance cooling system components. Eliminate common failure points and increase cooling system efficiency! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
4876924
Mfg#:
008682LA02-RF1KT
In Stock
ON SALE!
$1044.37 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Heater Inlet Pipe

ES#4069336 - 11531705210 - Heater Inlet Pipe - Runs from the front left side of the engine to the heater inlet - Rein - BMW

Runs from the front left side of the engine to the heater inlet 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4069336
Mfg#:
11531705210
In Stock
$42.39 USD
Free Shipping
on orders $49 and up

Expansion Tank Cap

ES#4304653 - 17117639022 - Expansion Tank Cap - Prevent pressure loss and overheating with a new expansion tank cap - Bavarian Autosport - BMW
ECS Tuning recommends this product.

Prevent pressure loss and overheating with a new expansion tank cap 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bavarian Autosport - Corporate Logo
ES#:
4304653
Mfg#:
17117639022
In Stock
ON SALE! SAVE 15%
$13.99

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

$11.89 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Silicone Radiator Hose Kit - Blue

ES#3047776 - MMHOSEE46NONMBL - Silicone Radiator Hose Kit - Blue - Includes pre-attached OE quick-disconnect fittings and new O-rings - Mishimoto - BMW

Includes pre-attached OE quick-disconnect fittings and new O-rings

Brand:
Mishimoto - Corporate Logo
ES#:
3047776
Mfg#:
MMHOSEE46NONMBL
In Stock
$199.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Universal 16" Low Profile Electric Fan

ES#3706751 - 30100400 - Universal 16" Low Profile Electric Fan - 1300 CFM. High performance pull fan with straight blades - Spal - Audi BMW MINI

1300 CFM. High performance pull fan with straight blades

Brand:
Spal - Corporate Logo
ES#:
3706751
Mfg#:
30100400
In Stock
$111.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cooling System Refresh Kit - Level 3

ES#2497338 - 17127510952KT3 - Cooling System Refresh Kit - Level 3 - The ultimate kit to eliminate your cooling system issues and get you back on the road worry free - featuring OEM contents - Genuine BMW - BMW

The ultimate kit to eliminate your cooling system issues and get you back on the road worry free - featuring OEM contents

Brand:
Genuine BMW - Corporate Logo
ES#:
2497338
Mfg#:
17127510952KT3
Ships in 1-2 days
$2913.99

This product was last offered at the strikethrough price on
10-05-2026

$2909.99 USD
Free Shipping
This product is lifetime replacement eligible Partial 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 Into Our F80 M3 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

Exact-fit Water Pipe Connecting Line

ES#3230761 - 013178ecs - Exact-fit Water Pipe Connecting Line - Connects the expansion tank to the upper radiator hose. Engineered in-house with perfectly formed fitment for a stronger, cleaner install. - ECS - BMW

Connects the expansion tank to the upper radiator hose. Engineered in-house with perfectly formed fitment for a stronger, cleaner install. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3230761
Mfg#:
013178ECS
In Stock
ON SALE! SAVE 25%
$159.99

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

$119.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator - Automatic

ES#205348 - 17119071519 - Radiator - Automatic - Replace your leaking radiator - Mahle-Behr - BMW

Replace your leaking radiator For vehicles with automatic transmission only

Brand:
Mahle-Behr - Corporate Logo
ES#:
205348
Mfg#:
17119071519
In Stock
$271.99

This product was last offered at the strikethrough price on
08-15-2026

$211.99 USD
Free Shipping
on orders $49 and up
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 Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
4315899
Mfg#:
11531436408KT2
In Stock
ON SALE! SAVE 22%
$399.99

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

$310.42 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Auxiliary Fan Switch

ES#34327 - 13621433077 - Auxiliary Fan Switch - Comes with related o-ring - Genuine BMW - BMW MINI

Comes with related o-ring Mounted in upper radiator hose, controls operation of auxiliary fan

Brand:
Genuine BMW - Corporate Logo
ES#:
34327
Mfg#:
13621433077
In Stock
16% off MSRP

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

$66.05

This product was last offered at the strikethrough price on
10-23-2026

$55.55 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Racing Thermostat

ES#2804271 - MMTS-E90-07 - Racing Thermostat - Promotes greater cooling for increased engine performance - Mishimoto - BMW

Promotes greater cooling for increased engine performance

Brand:
Mishimoto - Corporate Logo
ES#:
2804271
Mfg#:
MMTS-E90-07
In Stock
$83.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E46 Radiator Hose - Lower

ES#2803379 - 11531436408 - E46 Radiator Hose - Lower - A common source of cooling system failure - Rein - BMW

A common source of cooling system failure 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2803379
Mfg#:
11531436408
In Stock
$35.99

This product was last offered at the strikethrough price on
04-26-2026

$31.99 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

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

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