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 Clear

BMW E39 525i M54 2.5L

    • 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 BMW E39 525i M54 2.5L
Your Vehicle BMW E39 525i M54 2.5L
Change Clear

BMW E39 525i M54 2.5L Engine Cooling Parts

Sort By
Filter By
Return to Top

O-Ring - Priced Each

ES#34373 - 13621743299 - O-Ring - Priced Each - Replacement o-ring for the temperature sensor - Genuine BMW - BMW
ECS Tuning recommends this product.

Replacement o-ring for the temperature sensor

Brand:
Genuine BMW - Corporate Logo
ES#:
34373
Mfg#:
13621743299
In Stock
$3.08 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump O-Ring

ES#24381 - 11511711484 - Water Pump O-Ring - Low mileage water pump leaking? Have you considered replacing the o-ring? - Genuine BMW - BMW

Low mileage water pump leaking? Have you considered replacing the o-ring?

Brand:
Genuine BMW - Corporate Logo
ES#:
24381
Mfg#:
11511711484
In Stock
$11.99

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

$8.99 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. 2X Entries For Our 25th Anniversary 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!

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

Heater Hard Line replacement Kit

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

10X Entries For Our 25th Anniversary 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

Radiator Fan Clutch

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

Common source of engine overheating 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2873780
Mfg#:
11527505302
Ships on Oct 16, 2026
$187.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Compression Shroud

ES#180317 - 64548380782 - Compression Shroud - Genuine BMW - BMW

For wagon models

Brand:
Genuine BMW - Corporate Logo
ES#:
180317
Mfg#:
64548380782
Ships in 7 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.

$187.99

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

$183.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Lower Radiator Mount - Priced Each

ES#2836948 - 17112246750 - Lower Radiator Mount - Priced Each - 2 Required for each model - URO - BMW

2 Required for each model 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2836948
Mfg#:
17112246750
Ships in 1 Business Day
$7.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Level Sensor

ES#168111 - 61318360876 - Coolant Level Sensor - Monitors the coolant level in the expansion tank - Genuine BMW - BMW

Monitors the coolant level in the expansion tank

Brand:
Genuine BMW - Corporate Logo
ES#:
168111
Mfg#:
61318360876
Ships in 1 day
2% off MSRP

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

$92.99

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

$90.99 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

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

Radiator Drain Plug

ES#37807 - 17111712339 - Radiator Drain Plug - Usually damaged from heat cycles - Genuine BMW - BMW

Usually damaged from heat cycles

Brand:
Genuine BMW - Corporate Logo
ES#:
37807
Mfg#:
17111712339
Ships in 1 day
$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fan Blade

ES#4316510 - 11521712058 - Fan Blade - Replace your brittle fan before it sends a blade through your radiator - Bremmen Parts - BMW
ECS Tuning recommends this product.

Replace your brittle fan before it sends a blade through your radiator 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4316510
Mfg#:
11521712058
In Stock
ON SALE! SAVE 22%
$23.99

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

$18.76 USD
Free Shipping
on orders $49 and up

E39 Oil Cooling Pipe Outlet

ES#38778 - 17221714512 - E39 Oil Cooling Pipe Outlet - Genuine BMW - BMW

5Hp19

Brand:
Genuine BMW - Corporate Logo
ES#:
38778
Mfg#:
17221714512
Ships in 4 Business Days
$156.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Coolant Overflow Hose

ES#37691 - 17111427156 - Coolant Overflow Hose - The hose that leads from the radiator to the expansion tank - Genuine BMW - BMW

The hose that leads from the radiator to the expansion tank

Brand:
Genuine BMW - Corporate Logo
ES#:
37691
Mfg#:
17111427156
Ships in 2 Business Days
3% off MSRP

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

$79.99

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

$77.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Mount Support - Upper

ES#37845 - 17111712911 - Radiator Mount Support - Upper - Secures the upper radiator bracket to core support. - Genuine BMW - BMW

Secures the upper radiator bracket to core support.

Brand:
Genuine BMW - Corporate Logo
ES#:
37845
Mfg#:
17111712911
In Stock
$6.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant / Antifreeze - 1 Gallon

ES#4674748 - 82141467704 - Coolant / Antifreeze - 1 Gallon - Coolant G11 (Concentrate) - Febi - BMW

Coolant G11 (Concentrate) 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
4674748
Mfg#:
82141467704
Ships on Oct 16, 2026
$70.99 USD
Free Shipping
on orders $49 and up

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.

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