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BMW E46 325Ci M54 2.5L

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BMW E46 325Ci M54 2.5L Engine Cooling Parts

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Thermostat With Housing

ES#259571 - 11537509227 - Thermostat With Housing - A common item to crack causing leaks - Mahle-Behr - BMW

A common item to crack causing leaks

Brand:
Mahle-Behr - Corporate Logo
ES#:
259571
Mfg#:
11537509227
Ships in 1 Business Day
$104.39

This product was last offered at the strikethrough price on
08-14-2026

$104.28 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Water Pump - Remanufactured

ES#2534328 - 11517527799 - Water Pump - Remanufactured - Features a metal impeller for reliability - URO - BMW

Features a metal impeller for reliability 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2534328
Mfg#:
11517527799
In Stock
$42.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Fan Clutch

ES#2893822 - 11527505302 - Radiator Fan Clutch - Common source of engine overheating - Meyle - BMW
ECS Tuning recommends this product.

Common source of engine overheating 5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
2893822
Mfg#:
11527505302
In Stock
$101.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#2777575 - 17117639022 - Expansion Tank Cap - Replace worn or missing pieces. - Genuine BMW - BMW

Replace worn or missing pieces.

Brand:
Genuine BMW - Corporate Logo
ES#:
2777575
Mfg#:
17117639022
In Stock
21% off MSRP

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

$34.96

This product was last offered at the strikethrough price on
09-10-2026

$27.67 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Aluminum Water Pump Pulley Kit - With Belt

ES#2731606 - 001977ECS01KT - Aluminum Water Pump Pulley Kit - With Belt - Includes durable ECS Aluminum Water Pump Pulley in black, four retaining bolts and a Continental water pump belt - Assembled By ECS - BMW

Includes durable ECS Aluminum Water Pump Pulley in black, four retaining bolts and a Continental water pump belt 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2731606
Mfg#:
001977ECS01KT
In Stock
ON SALE!
$140.99

This product was last offered at the strikethrough price on
06-23-2026

$133.41 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Cooling System Refresh Kit - Level 3 plus

ES#3706700 - 17119071519gKT2 - ECS Cooling System Refresh Kit - Level 3 plus - The ultimate cooling refresh kit - with aftermarket components, featuring an ECS Aluminum Pulley, Stewart water pump and Aluminum Radiator - Assembled By ECS - BMW

The <font color='red'> ultimate</font> cooling refresh kit - with aftermarket components, featuring an ECS Aluminum Pulley, Stewart water pump and Aluminum Radiator 10X Entries Into Our F80 M3 Sweepstakes
For Automatic Vehicles Only!

Brand:
Assembled By ECS - Corporate Logo
ES#:
3706700
Mfg#:
17119071519GKT2
Ships on Oct 16, 2026
ON SALE!
$1508.99

This product was last offered at the strikethrough price on
06-15-2026

$1457.37 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Return Hose

ES#24803 - 11531436410 - Return Hose - Connects the Expansion Tank to the Water Pipe - Genuine BMW - BMW

Connects the Expansion Tank to the Water Pipe

Brand:
Genuine BMW - Corporate Logo
ES#:
24803
Mfg#:
11531436410
In Stock
$42.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Cooling System Upgrade

ES#5507087 - E46NMPCKT - Performance Cooling System Upgrade - Upgrade your BMW's cooling to extend track days and keep your engine healthy - Assembled By ECS - BMW

Upgrade your BMW's cooling to extend track days and keep your engine healthy 10X Entries Into Our F80 M3 Sweepstakes
For vehicles with a Manual Transmission and production date up to 09/2002

Brand:
Assembled By ECS - Corporate Logo
ES#:
5507087
Mfg#:
E46NMPCKT
Ships on Oct 16, 2026
ON SALE!
$1432.99

This product was last offered at the strikethrough price on
09-01-2026

$1400.17 USD
This product is lifetime replacement eligible Partial Replacement

E46 Expansion Tank Hose

ES#2803859 - 64218376153 - E46 Expansion Tank Hose - Expansion tank to heater core - Rein - BMW
ECS Tuning recommends this product.

Expansion tank to heater core 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2803859
Mfg#:
64218376153
In Stock
ON SALE! SAVE 60%
$82.99

This product was last offered at the strikethrough price on
05-06-2026

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

E46 Radiator Hose - Lower

ES#24801 - 11531436408 - E46 Radiator Hose - Lower - A common source of cooling system failure - Genuine BMW - BMW

A common source of cooling system failure

Brand:
Genuine BMW - Corporate Logo
ES#:
24801
Mfg#:
11531436408
In Stock
$57.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Hose

ES#178073 - 64218376153 - Expansion Tank Hose - Expansion tank to heater core - Genuine BMW - BMW

Expansion tank to heater core

Brand:
Genuine BMW - Corporate Logo
ES#:
178073
Mfg#:
64218376153
In Stock
13% off MSRP

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

$79.29

This product was last offered at the strikethrough price on
09-10-2026

$69.10 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Cooling System Refresh Kit - Level 2

ES#2063862 - ECSE461711-5 - ECS Cooling System Refresh Kit - Level 2 - A more advanced kit that includes belt service components and a ECS aluminum pulley - featuring aftermarket contents - Assembled By ECS - BMW

A more advanced kit that includes belt service components and a ECS aluminum pulley - featuring aftermarket contents 10X Entries Into Our F80 M3 Sweepstakes
For vehicles with production date up to 09/2002

Brand:
Assembled By ECS - Corporate Logo
ES#:
2063862
Mfg#:
ECSE461711-5
Ships on Oct 16, 2026
ON SALE!
$474.99

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

$460.03 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Performance Aluminum Fan Shroud Kit

ES#3137376 - MMFSE4699 - Performance Aluminum Fan Shroud Kit - Aluminum fan shroud with 16" slim electric fan - Mishimoto - BMW

Aluminum fan shroud with 16" slim electric fan

Brand:
Mishimoto - Corporate Logo
ES#:
3137376
Mfg#:
MMFSE4699
In Stock at Vendor
9% off MSRP

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

$374.00

This product was last offered at the strikethrough price on
09-10-2026

$339.95 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

AFe POWER BladeRunner OER Series Radiator

ES#4852446 - 46-53241 - AFe POWER BladeRunner OER Series Radiator - Drop your corroding plastic radiator with this aluminum- core replacement! - AFE - BMW

Drop your corroding plastic radiator with this aluminum- core replacement!

Brand:
AFE - Corporate Logo
ES#:
4852446
Mfg#:
46-53241
Back Ordered
ON SALE!
$236.00

This product was last offered at the strikethrough price on
09-01-2026

$224.20 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

AAF Low Temp Thermostat Kit - Partial - E46

ES#4504846 - 116211.2 - AAF Low Temp Thermostat Kit - Partial - E46 - Keep your track car at the right temperature! - Advanced Auto Fabrication - BMW

Keep your track car at the right temperature!

Brand:
Advanced Auto Fabrication - Corporate Logo
ES#:
4504846
Mfg#:
116211.2
In Stock
$85.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fluid Level Sensor

ES#2874178 - 17137553919 - Fluid Level Sensor - This sensor is used in multiple locations, depending on model: coolant level, washer level, and power steering level - Febi - BMW MINI

This sensor is used in multiple locations, depending on model: coolant level, washer level, and power steering level We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2874178
Mfg#:
17137553919
In Stock
$18.99 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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