Shop Our Clearance Sale - Up To 80% Off FREE SHIPPING on Orders $49+ *exclusions apply

Menu

Call Us330-331-2003 ChatLive Chat Text Us!
0 Shopping Cart
Your Vehicle

No Vehicle selected
Please select your vehicle below.

    • Audi
    • BMW
    • Mercedes Benz
    • MINI
    • Porsche
    • Volkswagen

Saved Vehicles

My Vehicles
You currently have no stored vehicles.

Recent Vehicles

Recent Vehicles Manage Vehicles

You currently have no recent vehicles.

We'll automatically keep fully selected vehicles here for your convenience.

Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
0
Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
Cancel
0
Sales & Specials
Enter Your Vehicle
garage-red
Your Vehicle Please tap 'Select' to pick a vehicle
Your Vehicle Please tap 'Select' to pick a vehicle
Select

BMW E46 Engine Cooling Parts

Sort By
Filter By
Return to Top

Coolant Expansion Tank

ES#2803705 - 17111723520 - Coolant Expansion Tank - Does not include cap or coolant level sensor - Rein - BMW

Does not include cap or coolant level sensor 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2803705
Mfg#:
17111723520
Ships in 1 Business Day
ON SALE!
$34.99

This product was last offered at the strikethrough price on
08-31-2026

$33.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Mounting Clamp

ES#37772 - 17111707777 - Expansion Tank Mounting Clamp - Locks the expansion tank into the mounting plate via the large hole in the bottom of the tank - Genuine BMW - BMW

Locks the expansion tank into the mounting plate via the large hole in the bottom of the tank

Brand:
Genuine BMW - Corporate Logo
ES#:
37772
Mfg#:
17111707777
In Stock
$21.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Heater Core

ES#2696129 - 64118372783 - Heater Core - Transfers heat to the cabin of the vehicle - Mahle-Behr - BMW

Transfers heat to the cabin of the vehicle

Brand:
Mahle-Behr - Corporate Logo
ES#:
2696129
Mfg#:
64118372783
Ships in 1-2 days
$197.25 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Coolant Bleeder Screw - Priced Each

ES#37833 - 17111712788 - Coolant Bleeder Screw - Priced Each - Comes with O-Ring - Genuine BMW - BMW MINI

Comes with O-Ring Located in upper radiator hose

Brand:
Genuine BMW - Corporate Logo
ES#:
37833
Mfg#:
17111712788
In Stock
$5.94 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rubber Bushing - Priced Each

ES#177678 - 64119175671 - Rubber Bushing - Priced Each - Use in various sections of the vehicle - Genuine BMW - BMW MINI

Use in various sections of the vehicle

Brand:
Genuine BMW - Corporate Logo
ES#:
177678
Mfg#:
64119175671
Ships in 1-2 days
$13.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cooling Hose

ES#4883961 - 13541703865 - Cooling Hose - Runs from throttle body to the cylinder head - Bremmen Parts - BMW

Runs from throttle body to the cylinder head 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4883961
Mfg#:
13541703865
Ships in 1 Business Day
ON SALE! SAVE 23%
$10.99

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

$8.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E46 M3 Coolant hose

ES#177981 - 64216902679 - E46 M3 Coolant hose - Heater coolant valve to heater core - Genuine BMW - BMW

Heater coolant valve to heater core

Brand:
Genuine BMW - Corporate Logo
ES#:
177981
Mfg#:
64216902679
Ships in 1-2 days
ON SALE!
$34.99

This product was last offered at the strikethrough price on
08-26-2026

$32.31 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Heater Hard Line replacement Kit

ES#4158351 - 11531705210KT2 - Heater Hard Line replacement Kit - Assembled By ECS - BMW

10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
4158351
Mfg#:
11531705210KT2
Ships on Nov 12, 2026
Auto Notify
ON SALE!
$201.99

This product was last offered at the strikethrough price on
04-28-2026

$192.02 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Heater Hose

ES#4883857 - 64218363198 - Heater Hose - This hose routes from the Water valve to the heater core. - Bremmen Parts - BMW

This hose routes from the Water valve to the heater core. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4883857
Mfg#:
64218363198
Ships in 1 Business Day
ON SALE! SAVE 21%
$10.99

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

$8.66 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#3672879 - 17117639022 - Expansion Tank Cap - Replace worn or missing pieces. - Meyle - BMW

Replace worn or missing pieces. 5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
3672879
Mfg#:
17117639022
In Stock
ON SALE! SAVE 40%
$14.99

This product was last offered at the strikethrough price on
05-14-2026

$8.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Auxiliary Fan Switch

ES#2813875 - 13621433077 - Auxiliary Fan Switch - Comes with related o-ring - Hamburg Tech - BMW MINI

Comes with related o-ring We Price Match - Give Us A Call or Chat!
Mounted in lower radiator hose, controls operation of auxiliary fan

Brand:
Hamburg Tech - Corporate Logo
ES#:
2813875
Mfg#:
13621433077
In Stock
ON SALE! SAVE 10%
$13.95

This product was last offered at the strikethrough price on
09-03-2026

$12.56 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Fan Clutch

ES#2873780 - 11527505302 - Radiator Fan Clutch - Common source of engine overheating - Febi - BMW

Common source of engine overheating We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2873780
Mfg#:
11527505302
Ships on Dec 3, 2026
$187.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Radiator Hose - Upper

ES#2622566 - 11531708499 - Radiator Hose - Upper - New upper radiator hose for your BMW - Rein - BMW

New upper radiator hose for your BMW 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2622566
Mfg#:
11531708499
In Stock at Vendor
ON SALE!
$12.99

This product was last offered at the strikethrough price on
08-31-2026

$12.34 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Hose - Upper

ES#2534458 - 11531720722 - Radiator Hose - Upper - Hose from radiator to water pump - URO - BMW

Hose from radiator to water pump 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2534458
Mfg#:
11531720722
Ships in 1 Business Day
$7.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Hose - Lower

ES#4883957 - 11537830715 - Radiator Hose - Lower - Lower radiator hose with plastic securing flange - Bremmen Parts - BMW

Lower radiator hose with plastic securing flange 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4883957
Mfg#:
11537830715
In Stock
ON SALE! SAVE 17%
$26.99

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

$22.53 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing Gasket

ES#10947 - 11537509357 - Thermostat Housing Gasket - Needs to be replaced once removed - Elring - BMW

Needs to be replaced once removed 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Elring - Corporate Logo
ES#:
10947
Mfg#:
11537509357
Ships in 1-2 days
$7.99

This product was last offered at the strikethrough price on
07-23-2026

$4.99 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.

Terms of Use Privacy Policy ECS Tuning is part of Enthusiast Auto Holdings