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BMW E46 Engine Cooling Parts

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Radiator Hose - Lower

ES#4304690 - 11531436408 - Radiator Hose - Lower - A common source of cooling system failure - Bremmen Parts - BMW
ECS Tuning recommends this product.

A common source of cooling system failure affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4304690
Mfg#:
11531436408
In Stock
ON SALE! SAVE 16%
$36.99

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

$31.20 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E46 M52 M54 Silicone Radiator Hose Kit

ES#4142065 - 006205LA01 - E46 M52 M54 Silicone Radiator Hose Kit - Kit includes upper and lower radiator hoses without connections. Silicone hose upgrade and connectors kit ES4315269. - ECS - BMW

Kit includes upper and lower radiator hoses without connections. Silicone hose upgrade and connectors kit ES4315269. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4142065
Mfg#:
006205LA01
In Stock
ON SALE! SAVE 35%
$156.99

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

$102.04 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Silicone Hose Kit

ES#3236075 - 003631ECS01KT - ECS Silicone Hose Kit - Includes upper and lower radiator hoses, Water Pipe Connecting Line and Aluminum Coolant Bleeder Screw - ECS - BMW

Includes upper and lower radiator hoses, Water Pipe Connecting Line and Aluminum Coolant Bleeder Screw affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3236075
Mfg#:
003631ECS01KT
In Stock
ON SALE! SAVE 25%
$356.99

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

$267.02 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Cooling System Refresh Kit - Level 1

ES#2063865 - ECSE461711-1 - ECS Cooling System Refresh Kit - Level 1 - Contains the components that commonly fail in your cooling system - featuring aftermarket contents and ECS aluminum pulley - Assembled By ECS - BMW

Contains the components that commonly fail in your cooling system - featuring aftermarket contents and ECS aluminum pulley affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2063865
Mfg#:
ECSE461711-1
In Stock
ON SALE!
$438.99

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

$419.66 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Oil Cooler Line Fitting Adapter

ES#3006344 - TEN9910200 - Oil Cooler Line Fitting Adapter - Provides excellent flexibility with installing a new oil cooler - Turner Motorsport - BMW

Provides excellent flexibility with installing a new oil cooler affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
3006344
Mfg#:
TEN9910200
In Stock
ON SALE!
$93.99

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

$91.17 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Aluminum Radiator

ES#2999054 - MMRAD-E46-323 - Performance Aluminum Radiator - Fully brazed two-row aluminum core with TIG-welded end tanks - Mishimoto - BMW

Fully brazed two-row aluminum core with TIG-welded end tanks affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Mishimoto - Corporate Logo
ES#:
2999054
Mfg#:
MMRAD-E46-323
Ships in 3 Business Days
$503.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Spal Electric Fan Harness with Relay - 185 Degree

ES#4147266 - 185FH - Spal Electric Fan Harness with Relay - 185 Degree - Single Fan 40amp relay wiring harness kit - 185 degree on/165 degree off with Sending unit - Spal - Audi BMW MINI

Single Fan 40amp relay wiring harness kit - 185 degree on/165 degree off with Sending unit affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Spal - Corporate Logo
ES#:
4147266
Mfg#:
185FH
In Stock
11% off MSRP

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

$186.99

This product was last offered at the strikethrough price on
06-04-2026

$165.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump And Fan Clutch Tool Kit

ES#2627584 - 001170SCH01AKT - Water Pump And Fan Clutch Tool Kit - Make the job easier with the right tools - Schwaben - BMW
ECS Tuning recommends this product.

Make the job easier with the right tools affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Schwaben - Corporate Logo
ES#:
2627584
Mfg#:
001170SCH01AKT
In Stock
ON SALE! SAVE 30%
$65.99

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

$46.19 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Replacement Kit - Level 2

ES#2795143 - 17117573781KT6 - Expansion Tank Replacement Kit - Level 2 - More advanced expansion tank replacement kit - Assembled By ECS - BMW

More advanced expansion tank replacement kit affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2795143
Mfg#:
17117573781KT6
Ships in 10 Business Days
Auto Notify
ON SALE! SAVE 25%
$164.99

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

$124.09 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

E46 Radiator Hose - Upper

ES#2803457 - 17127510952 - E46 Radiator Hose - Upper - A common source of cooling system failure - Rein - BMW
ECS Tuning recommends this product.

A common source of cooling system failure affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2803457
Mfg#:
17127510952
In Stock
$25.99

This product was last offered at the strikethrough price on
02-09-2026

$25.09 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pipe

ES#4304672 - 11537502525 - Water Pipe - Connects return hose to engine block - Bavarian Autosport - BMW
ECS Tuning recommends this product.

Connects return hose to engine block affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bavarian Autosport - Corporate Logo
ES#:
4304672
Mfg#:
11537502525
In Stock
ON SALE! SAVE 20%
$50.99

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

$40.79 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

New Water Pump - With O-Ring

ES#259608 - 11517527910 - New Water Pump - With O-Ring - Featuring a metal impeller - Hepu - BMW

Featuring a metal impeller affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Hepu - Corporate Logo
ES#:
259608
Mfg#:
11517527910
In Stock
$65.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump - With O-Ring

ES#2714593 - 11517509985 - Water Pump - With O-Ring - Featuring advanced composite impeller - Genuine BMW - BMW

Featuring advanced composite impeller affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2714593
Mfg#:
11517509985
In Stock
11% off MSRP

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

$192.54

This product was last offered at the strikethrough price on
06-04-2026

$172.26 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Aluminum Water Pump Pulley

ES#2992240 - 002778ECS01 - Aluminum Water Pump Pulley - Finally, a durable water pump pulley that won't break! - ECS - BMW

Finally, a durable water pump pulley that won't break! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2992240
Mfg#:
002778ECS01
Ships on Oct 20, 2026
ON SALE! SAVE 10%
$98.99

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

$89.09 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

SuperCool Performance Coolant - Concentrate - 1 Gallon

ES#4338528 - 81205 - SuperCool Performance Coolant - Concentrate - 1 Gallon - Redline's state of the art coolant offering premium performance and protection. Fortified with Waterwetter! - Redline - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Redline's state of the art coolant offering premium performance and protection. Fortified with Waterwetter! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Redline - Corporate Logo
ES#:
4338528
Mfg#:
81205
In Stock
$68.99 USD
Free Shipping
on orders $49 and up

E46 M3 Heater Hose

ES#177982 - 64216902680 - E46 M3 Heater Hose - Connects the engine to the heater core - Genuine BMW - BMW

Connects the engine to the heater core affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
177982
Mfg#:
64216902680
In Stock
1% off MSRP

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

$73.99

This product was last offered at the strikethrough price on
06-04-2026

$72.99 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.

Let us help you find the parts that fit your BMW

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Manufacturer names and/or part numbers are used only for identification purposes.

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