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

E46 Radiator Hose - Upper

ES#2531634 - 17127510952 - E46 Radiator Hose - Upper - A common source of cooling system failure - Gates - BMW

A common source of cooling system failure

Brand:
Gates - Corporate Logo
ES#:
2531634
Mfg#:
17127510952
Ships on Aug 10, 2026
$53.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Inline Temperature Sensor Adapter - Manifold

ES#4500514 - tempswitchman - Inline Temperature Sensor Adapter - Manifold - Allows installation of NPT threaded temperature sensor - Zionsville Autosport - BMW

Allows installation of NPT threaded temperature sensor

Brand:
Zionsville Autosport - Corporate Logo
ES#:
4500514
Mfg#:
TEMPSWITCHMAN
Special Order: No Guaranteed ETA
$52.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Mounting Plate

ES#3984620 - 17111436250 - Expansion Tank Mounting Plate - Mounts to the side of the radiator for retaining the expansion tank - URO - BMW

Mounts to the side of the radiator for retaining the expansion tank 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
For vehicles with manual transmission only

Brand:
URO - Corporate Logo
ES#:
3984620
Mfg#:
17111436250
Back Ordered
Auto Notify
$49.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E36 Heater Hose - Water Valve to Heater Core

ES#2889493 - 64211394292 - E36 Heater Hose - Water Valve to Heater Core - Comes off of the heater valve and connects to the right side of the heater core - Vaico - BMW

Comes off of the heater valve and connects to the right side of the heater core We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
2889493
Mfg#:
64211394292
In Stock at Vendor
$10.99

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

$9.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rubber Mount - Radiator

ES#2828446 - 17111178412 - Rubber Mount - Radiator - URO Parts is one of the leading manufacturers of high quality direct replacement aftermarket components, covering a wide range of makes and models. - URO - BMW

URO Parts is one of the leading manufacturers of high quality direct replacement aftermarket components, covering a wide range of makes and models. 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2828446
Mfg#:
17111178412
Ships in 1 Business Day
$3.12 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Heater Inlet Pipe

ES#4068915 - 11531705210 - Heater Inlet Pipe - Runs from the front left side of the engine to the heater inlet - Febi - BMW

Runs from the front left side of the engine to the heater inlet 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
4068915
Mfg#:
11531705210
Ships on Aug 6, 2026
$47.46 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E46 Radiator Hose - Upper

ES#2550768 - 11537830716 - E46 Radiator Hose - Upper - Connects the radiator to the thermostat housing - Gates - BMW

Connects the radiator to the thermostat housing

Brand:
Gates - Corporate Logo
ES#:
2550768
Mfg#:
11537830716
In Stock at Vendor
$48.99

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

$46.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Hose Kit - E46 M52/M54

ES#5375138 - CHK0002 - Radiator Hose Kit - E46 M52/M54 - This Rein radiator hose kit ensures reliable cooling performance and perfect fitment. - Rein - BMW

This Rein radiator hose kit ensures reliable cooling performance and perfect fitment. 2X Entries For Our 25th Anniversary Sweepstakes!
2X Entries For Our G87 M2 Sweepstakes!

Brand:
Rein - Corporate Logo
ES#:
5375138
Mfg#:
CHK0002
Ships in 2 Business Days
$46.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Over Flow Hose

ES#38868 - 17222246036 - Over Flow Hose - Attaches to expansion tank - Genuine BMW - BMW

Attaches to expansion tank

Brand:
Genuine BMW - Corporate Logo
ES#:
38868
Mfg#:
17222246036
Ships in 4 Business Days
2% off MSRP

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

$44.99

This product was last offered at the strikethrough price on
07-21-2026

$43.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E46 Lower Fan Grille

ES#180320 - 64548385345 - E46 Lower Fan Grille - Protects the lower part of the push fan - Genuine BMW - BMW

Protects the lower part of the push fan

Brand:
Genuine BMW - Corporate Logo
ES#:
180320
Mfg#:
64548385345
Ships in 4 Business Days
2% off MSRP

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

$42.99

This product was last offered at the strikethrough price on
07-21-2026

$41.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hex Nut

ES#16952 - 07147144953 - Hex Nut - Replace stripped or rounded hardware - Genuine BMW - BMW MINI

Replace stripped or rounded hardware

Brand:
Genuine BMW - Corporate Logo
ES#:
16952
Mfg#:
07147144953
In Stock
ON SALE! SAVE 52%
$4.99

This product was last offered at the strikethrough price on
03-04-2026

$2.40 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Bleeder Screw - Priced Each

ES#4316519 - 17111712788 - Coolant Bleeder Screw - Priced Each - Comes with O-Ring - Bremmen Parts - BMW MINI

Comes with O-Ring 10X Entries For Our 25th Anniversary Sweepstakes!

Located in upper radiator hose

Brand:
Bremmen Parts - Corporate Logo
ES#:
4316519
Mfg#:
17111712788
In Stock
ON SALE! SAVE 39%
$3.99

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

$2.44 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Temperature Switch for Control Unit Housing (E-Box) (35 deg. C)

ES#2895858 - 12521741900 - Temperature Switch for Control Unit Housing (E-Box) (35 deg. C) - Vemo - BMW

Brand:
Vemo - Corporate Logo
ES#:
2895858
Mfg#:
12521741900
In Stock at Vendor
$40.99

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

$38.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump O-Ring

ES#3187741 - 11537830709 - Water Pump O-Ring - Quality replacement O-Ring - URO - BMW

Quality replacement O-Ring 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
3187741
Mfg#:
11537830709
Ships in 1 Business Day
$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing Gasket

ES#3676458 - 703307100 - Thermostat Housing Gasket - Needs to be replaced once removed - Victor Reinz - BMW

Needs to be replaced once removed

Brand:
Victor Reinz - Corporate Logo
ES#:
3676458
Mfg#:
703307100
In Stock
ON SALE! SAVE 10%
$10.64

This product was last offered at the strikethrough price on
06-25-2026

$9.59 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