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BMW E46 325i M54 2.5L

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BMW E46 325i M54 2.5L Engine Cooling Parts

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Expansion Tank Mounting Plate

ES#3504759 - 17111436251 - Expansion Tank Mounting Plate - Mounts to the side of the radiator for retaining the expansion tank - Rein - BMW

Mounts to the side of the radiator for retaining the expansion tank 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
For vehicles with automatic transmission only

Brand:
Rein - Corporate Logo
ES#:
3504759
Mfg#:
17111436251
Ships in 1 Business Day
$80.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Fan Clutch

ES#259493 - 11527505302 - Radiator Fan Clutch - Common source of engine overheating - Sachs - BMW

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

Brand:
Sachs - Corporate Logo
ES#:
259493
Mfg#:
11527505302
Back Ordered
$231.08 USD
Free Shipping
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

Universal 14" Electric Fan - Black

ES#4147278 - 30100385 - Universal 14" Electric Fan - Black - 1038 CFM. High performance puller fan with curved blades. - Spal - Audi BMW MINI

1038 CFM. High performance puller fan with curved blades.

Brand:
Spal - Corporate Logo
ES#:
4147278
Mfg#:
30100385
In Stock at Vendor
15% off MSRP

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

$130.99

This product was last offered at the strikethrough price on
10-11-2026

$111.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Replacement Kit

ES#2592641 - 11537509227KT - Thermostat Replacement Kit - Includes gaskets and hardware and coolant - Genuine BMW - BMW

Includes gaskets and hardware and coolant

Brand:
Genuine BMW - Corporate Logo
ES#:
2592641
Mfg#:
11537509227KT
Back Ordered
$219.99

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

$218.99 USD
Free Shipping
This product is lifetime replacement eligible Partial 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
In Stock
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

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
$13.95 USD
Free Shipping
on orders $49 and up
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

Lower Radiator Mount - Priced Each

ES#2814064 - 17111178412 - Lower Radiator Mount - Priced Each - Rubber lower mount for your radiator - Hamburg Tech - BMW

Rubber lower mount for your radiator We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2814064
Mfg#:
17111178412
In Stock
$1.89 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Heater Inlet Pipe

ES#2813484 - 11531705210 - Heater Inlet Pipe - Runs from the front left side of the engine to the heater inlet - Hamburg Tech - BMW

Runs from the front left side of the engine to the heater inlet We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2813484
Mfg#:
11531705210
In Stock
Limited Qty Sale
$38.99

This product was last offered at the strikethrough price on
09-15-2026

$32.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#205244 - 17111742231 - Expansion Tank Cap - Replace when performing cooling service. - Rein - BMW
ECS Tuning recommends this product.

Replace when performing cooling service. 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
205244
Mfg#:
17111742231
Ships in 6 Business Days
$17.99 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

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
ON SALE!
$201.99

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

$191.54 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Tester

ES#2696212 - V99-1005 - Coolant Tester - Make sure your coolant is safe from freezing! - Vaico - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Make sure your coolant is safe from freezing! We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
2696212
Mfg#:
V99-1005
Back Ordered
$51.99

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

$37.99 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 Jan 11, 2027
$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.

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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