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BMW Engine Cooling Parts

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E46 M3 Water Pipe Connecting Line

ES#37983 - 17112229053 - E46 M3 Water Pipe Connecting Line - Connects the expansion tank to the upper radiator hose - Genuine BMW - BMW

Connects the expansion tank to the upper radiator hose affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
37983
Mfg#:
17112229053
In Stock at Vendor
$177.99

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

$172.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

E46 M3 Auxiliary Fan Assembly - With Frame

ES#180300 - 64546988914 - E46 M3 Auxiliary Fan Assembly - With Frame - Mounted in front of the radiator, referred to by BMW as the "Pusher Fan" - Genuine BMW - BMW

Mounted in front of the radiator, referred to by BMW as the "Pusher Fan" affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
180300
Mfg#:
64546988914
Ships in 5 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.

$938.99

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

$907.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Mechanical Water Pump

ES#4826904 - 11515B4A144 - Mechanical Water Pump - New mechanical water pump directly from BMW - includes the water pump gasket - Genuine BMW - BMW

New mechanical water pump directly from BMW - includes the water pump gasket affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For models with a production date from 08/2020+ with 48V Hybrid System

Brand:
Genuine BMW - Corporate Logo
ES#:
4826904
Mfg#:
11515B4A144
In Stock
10% off MSRP

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

$218.99

This product was last offered at the strikethrough price on
02-03-2026

$197.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat With Housing

ES#25078 - 11537509227 - Thermostat With Housing - A common item to crack causing leaks - Genuine BMW - BMW

A common item to crack causing leaks affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
25078
Mfg#:
11537509227
In Stock
3% off MSRP

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

$174.45

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

$169.69 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

MSL Oil Thermostat Hardware

ES#4772301 - 030210011 - MSL Oil Thermostat Hardware - Grade 5 Titanium M8 hardware for use with MSL Oil Thermostats - Mosselman Turbosystems - BMW

Grade 5 Titanium M8 hardware for use with MSL Oil Thermostats affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Mosselman Turbosystems - Corporate Logo
ES#:
4772301
Mfg#:
030210011
In Stock
$25.99 USD
Free Shipping
on orders $49 and up

Aluminum Radiator - E90/92 M3

ES#4656920 - WC190 - Aluminum Radiator - E90/92 M3 - Let your engine breathe better with this DO88 Radiator! - DO88 - BMW

Let your engine breathe better with this DO88 Radiator! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
DO88 - Corporate Logo
ES#:
4656920
Mfg#:
WC190
In Stock at Vendor
$712.00 USD
This product is lifetime replacement eligible Lifetime Replacement

Auxiliary Water Pump

ES#4726424 - 11517583965 - Auxiliary Water Pump - Replace your failure prone electric water pump with a high quality aftermarket unit and restore cooling system functionality - Pierburg - BMW

Replace your failure prone electric water pump with a high quality aftermarket unit and restore cooling system functionality affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Pierburg - Corporate Logo
ES#:
4726424
Mfg#:
11517583965
In Stock
$221.99 USD
Free Shipping
on orders $49 and up

Turbo Water Return Line

ES#2135782 - 11537583903 - Turbo Water Return Line - Carries coolant away from the turbocharger - Genuine BMW - BMW

Carries coolant away from the turbocharger affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2135782
Mfg#:
11537583903
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.

$188.98

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

$177.46 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E46 M3 Water Pump

ES#2707755 - 11517838118 - E46 M3 Water Pump - Includes alignment dowel - Genuine BMW - BMW

Includes alignment dowel affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2707755
Mfg#:
11517838118
Ships in 3 Business Days
7% off MSRP

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

$632.99

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

$590.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Line - Turbocharger-Coolant Pump

ES#3178399 - 11538666857 - Line - Turbocharger-Coolant Pump - Genuine BMW - BMW

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
3178399
Mfg#:
11538666857
Ships in 1-2 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.

$138.99

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

$135.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump And Thermostat Kit

ES#2960121 - 11517838201kt2KT - Water Pump And Thermostat Kit - Includes German-made OE water pump and thermostat with everything you need to install - Assembled By ECS - BMW

Includes German-made OE water pump and thermostat with everything you need to install 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#:
2960121
Mfg#:
11517838201KT2KT
In Stock
ON SALE! SAVE 23%
$285.99

This product was last offered at the strikethrough price on
04-07-2026

$219.84 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

ECS Performance Coolant Outlet Hose Kit

ES#4164361 - 004520LA01 - ECS Performance Coolant Outlet Hose Kit - The factory connection point is brittle and cracks, leaving your BMW leaking coolant. Replace yours with a durable billet connection and silicone hose for less than a Genuine BMW replacement! - ECS - BMW

The factory connection point is brittle and cracks, leaving your BMW leaking coolant. Replace yours with a durable billet connection and silicone hose for less than a Genuine BMW replacement! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4164361
Mfg#:
004520LA01
Ships on Aug 10, 2026
Auto Notify
ON SALE! SAVE 20%
$106.99

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

$85.59 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

S55 Front Mount Heat Exchanger - F8X S55

ES#4338826 - 10803020 - S55 Front Mount Heat Exchanger - F8X S55 - Replace your inefficient factory front-mounted heat exchanger - VRSF - BMW

Replace your inefficient factory front-mounted heat exchanger affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
VRSF - Corporate Logo
ES#:
4338826
Mfg#:
10803020
Ships in 1 Business Day
$499.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

CSF High Performance Aluminum Heat Exchanger - Black

ES#4147449 - 8075V - CSF High Performance Aluminum Heat Exchanger - Black - Reduce intake temperatures with this performance heat exchanger from CSF! - CSF - BMW

Reduce intake temperatures with this performance heat exchanger from CSF! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CSF - Corporate Logo
ES#:
4147449
Mfg#:
8075V
In Stock
$699.00 USD
This product is lifetime replacement eligible Lifetime Replacement

Lower Coolant Hose Assembly

ES#4765679 - 17127548224 - Lower Coolant Hose Assembly - Connects the heater core to the thermostat and expansion tank - URO - BMW

Connects the heater core to the thermostat and expansion tank affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4765679
Mfg#:
17127548224
Ships in 1 Business Day
$96.99 USD
Free Shipping

Water Pump - Mechanical W/ Metal Impeller

ES#3191413 - 11517801063 - Water Pump - Mechanical W/ Metal Impeller - An aftermarket replacement with a stronger metal impeller to keep your car running cool. - Graf - BMW

An aftermarket replacement with a stronger metal impeller to keep your car running cool. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Graf - Corporate Logo
ES#:
3191413
Mfg#:
11517801063
In Stock
$118.03

This product was last offered at the strikethrough price on
05-09-2026

$116.34 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.

Other BMW Engine Cooling Parts

Let us help you find the parts that fit your BMW

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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