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BMW E39 525i M54 2.5L

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BMW E39 525i M54 2.5L Engine Cooling Parts

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Coolant Temperature Sensor

ES#4316487 - 13621703993 - Coolant Temperature Sensor - Monitors coolant temperature - Bavarian Autosport - BMW

Monitors coolant temperature 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bavarian Autosport - Corporate Logo
ES#:
4316487
Mfg#:
13621703993
Ships on Oct 16, 2026
Auto Notify
ON SALE! SAVE 20%
$20.99

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

$16.79 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Vent Hose Fitting

ES#4690266 - 17110419132 - Radiator Vent Hose Fitting - Replace your cracked & leaking fitting - CoolXPert - BMW

Replace your cracked & leaking fitting

Brand:
CoolXPert
ES#:
4690266
Mfg#:
17110419132
Ships in 1-2 days
$6.99

This product was last offered at the strikethrough price on
03-07-2026

$5.99 USD
Free Shipping
on orders $49 and up

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

Heater Hard Line Replacement & Upgrade Kit

ES#3184115 - 11531705210KT - Heater Hard Line Replacement & Upgrade Kit - Includes everything needed to replace heater coolant hard lines - Assembled By ECS - BMW

Includes everything needed to replace heater coolant hard lines 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
3184115
Mfg#:
11531705210KT
Ships on Nov 12, 2026
Auto Notify
$268.99

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

$257.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Hex Bolt With Washer - Priced Each

ES#4865874 - 11531740317KT - Hex Bolt With Washer - Priced Each - Used to secure the thermostat - Bremmen Parts - BMW

Used to secure the thermostat 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4865874
Mfg#:
11531740317KT
In Stock
ON SALE! SAVE 39%
$3.99

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

$2.43 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E39 Coolant Hose

ES#3659421 - 64218367929 - E39 Coolant Hose - From left heater core to heater valve - Elaplast - BMW

From left heater core to heater valve

Brand:
Elaplast - Corporate Logo
ES#:
3659421
Mfg#:
64218367929
In Stock at Vendor
$11.99

This product was last offered at the strikethrough price on
07-15-2026

$10.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Hose - Upper

ES#2627432 - 11531705223 - Radiator Hose - Upper - Includes retaining clips - Rein - BMW

Includes retaining clips 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2627432
Mfg#:
11531705223
Ships in 1 day
$45.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Level Sensor

ES#2876093 - 61318360876 - Coolant Level Sensor - Monitors the coolant level in the expansion tank - Febi - BMW

Monitors the coolant level in the expansion tank 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2876093
Mfg#:
61318360876
In Stock
$14.99 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
07-21-2026

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

Expansion Tank Hose

ES#24813 - 11531438632 - Expansion Tank Hose - Runs from the expansion tank to the heater core - Genuine BMW - BMW

Runs from the expansion tank to the heater core

Brand:
Genuine BMW - Corporate Logo
ES#:
24813
Mfg#:
11531438632
Ships in 2 Business Days
$55.99 USD
Free Shipping
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
Ships on Jan 13, 2027
$219.99

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

$217.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Water Pump Pulley

ES#24360 - 11511436590 - Water Pump Pulley - A common failing piece due to the plastic design. - Genuine BMW - BMW

A common failing piece due to the plastic design.

Brand:
Genuine BMW - Corporate Logo
ES#:
24360
Mfg#:
11511436590
In Stock
ON SALE!
$73.99

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

$72.40 USD
Free Shipping
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 For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Elring - Corporate Logo
ES#:
10947
Mfg#:
11537509357
In Stock at Vendor
$7.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat - 92 Degree Celcius - Vernet

ES#3674980 - TH6243.92J - Thermostat - 92 Degree Celcius - Vernet - 92 Degree Celcius/ 197 Degree Farenheit. - Vernet - BMW

92 Degree Celcius/ 197 Degree Farenheit.

Brand:
Vernet - Corporate Logo
ES#:
3674980
Mfg#:
TH6243.92J
Ships in 1 day
$22.99 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.

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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