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BMW Engine Cooling Parts

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Turbo Water Return Line

ES#4475988 - 11537583903 - Turbo Water Return Line - Manufactured with premium OE quality material designed to withstand the high demands of automotive power turbo systems - Rein - BMW

Manufactured with premium OE quality material designed to withstand the high demands of automotive power turbo systems 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4475988
Mfg#:
11537583903
In Stock
$48.99

This product was last offered at the strikethrough price on
03-25-2026

$43.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Fan Clutch

ES#2895469 - 11527505302 - Radiator Fan Clutch - Common source of engine overheating - Vemo - BMW

Common source of engine overheating

Brand:
Vemo - Corporate Logo
ES#:
2895469
Mfg#:
11527505302
In Stock at Vendor
$155.99

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

$151.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank

ES#2698384 - 17137642160 - Expansion Tank - Genuine replacement for your cracked and/or damaged coolant expansion tank. - Genuine BMW - BMW

Genuine replacement for your cracked and/or damaged coolant expansion tank.

Brand:
Genuine BMW - Corporate Logo
ES#:
2698384
Mfg#:
17137642160
In Stock
6% off MSRP

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

$180.99

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

$169.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Water Pump Service Kit

ES#4658950 - 11518635089-2 - Water Pump Service Kit - Everything to service your failing water pump in one kit! - Rein - BMW

Everything to service your failing water pump in one kit! 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
For production years 2014-2016

Brand:
Rein - Corporate Logo
ES#:
4658950
Mfg#:
11518635089-2
In Stock at Vendor
$1309.99

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

$1272.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator - Automatic

ES#205348 - 17119071519 - Radiator - Automatic - Replace your leaking radiator - Mahle-Behr - BMW

Replace your leaking radiator

Brand:
Mahle-Behr - Corporate Logo
ES#:
205348
Mfg#:
17119071519
In Stock at Vendor
$271.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Aluminum Coolant Hose Connector

ES#4899530 - 11118619408 - Aluminum Coolant Hose Connector - Identical to OE part in form, fit, and function, but with aluminum construction to prevent cracking and leaks - Rein - BMW

Identical to OE part in form, fit, and function, but with aluminum construction to prevent cracking and leaks 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4899530
Mfg#:
11118619408
Back Ordered
Auto Notify
$47.99 USD
Free Shipping
on orders $49 and up

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. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4142065
Mfg#:
006205LA01
In Stock
ON SALE! SAVE 25%
$160.99

This product was last offered at the strikethrough price on
06-13-2026

$120.74 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat - 79C

ES#3023813 - 11537836155 - Thermostat - 79C - Includes sealing gasket - Mahle-Behr - BMW
ECS Tuning recommends this product.

Includes sealing gasket

Brand:
Mahle-Behr - Corporate Logo
ES#:
3023813
Mfg#:
11537836155
In Stock at Vendor
$74.99

This product was last offered at the strikethrough price on
07-08-2026

$64.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Cooler Inlet Hose

ES#38749 - 17221711464 - Oil Cooler Inlet Hose - Hose that circulates oil to the oil cooler - Genuine BMW - BMW

Hose that circulates oil to the oil cooler For vehicles with a production date from 09/1998

Brand:
Genuine BMW - Corporate Logo
ES#:
38749
Mfg#:
17221711464
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.

$181.99

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

$180.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

COOLANT PUMP

ES#4741600 - 11515A81BE9 - COOLANT PUMP - Externally mounted cooling system water pump - Genuine BMW - BMW

Externally mounted cooling system water pump

Brand:
Genuine BMW - Corporate Logo
ES#:
4741600
Mfg#:
11515A81BE9
Ships in 2 Business Days
8% off MSRP

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

$690.99

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

$632.99 USD
Free Shipping
on orders $49 and up

S50 S52 M50 M52 Thermostat Housing

ES#3673391 - 11531722531 - S50 S52 M50 M52 Thermostat Housing - Upgraded aluminum thermostat housing - Bremmen Parts - BMW

Upgraded aluminum thermostat housing 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
3673391
Mfg#:
11531722531
Ships in 3 Business Days
ON SALE! SAVE 22%
$25.99

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

$20.39 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E39 M5 Coolant Expansion Tank

ES#37986 - 17112229114 - E39 M5 Coolant Expansion Tank - Replace your cracked or faded expansion tank with this genuine part - Genuine BMW - BMW

Replace your cracked or faded expansion tank with this genuine part

Brand:
Genuine BMW - Corporate Logo
ES#:
37986
Mfg#:
17112229114
In Stock
4% off MSRP

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

$329.99

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

$315.99 USD
Free Shipping
on orders $49 and up
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

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

Coolant Hose - Upper Radiator

ES#2733436 - 11537848501 - Coolant Hose - Upper Radiator - Replace your leaking or worn out hose - Genuine BMW - BMW

Replace your leaking or worn out hose

Brand:
Genuine BMW - Corporate Logo
ES#:
2733436
Mfg#:
11537848501
In Stock
8% off MSRP

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

$183.00

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

$167.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

N52 High-Flow Water Pump Upgrade

ES#5425471 - 044952la04KT - N52 High-Flow Water Pump Upgrade - Easily upgrade your N52 with our bolt-in 400W N54 water pump conversion that doubles overall flow and improves cooling system efficiency. - ECS - BMW

Easily upgrade your N52 with our bolt-in 400W N54 water pump conversion that doubles overall flow and improves cooling system efficiency. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
5425471
Mfg#:
044952LA04KT
In Stock
ON SALE! SAVE 25%
$477.99

This product was last offered at the strikethrough price on
06-13-2026

$358.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Coolant Inlet Hose

ES#2159210 - 11537584550 - Coolant Inlet Hose - Attached to the water pump inlet - Genuine BMW - BMW

Attached to the water pump inlet For vehicles with dual clutch transmission only (DCT)

Brand:
Genuine BMW - Corporate Logo
ES#:
2159210
Mfg#:
11537584550
In Stock
5% off MSRP

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

$654.99

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

$624.99 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.

Other BMW Engine Cooling Parts

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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