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BMW Engine Cooling Parts

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Water Pump And Thermostat Kit

ES#2777338 - 11517586925KT5 - Water Pump And Thermostat Kit - Includes everything you need to replace your water pump and thermostat. - Assembled By ECS - BMW
ECS Tuning recommends this product.

Includes everything you need to replace your water pump and thermostat. 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#:
2777338
Mfg#:
11517586925KT5
In Stock
ON SALE! SAVE 25%
$424.99

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

$318.74 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Water Pump

ES#4039805 - 11517632426 - Water Pump - N54 and N55 engines are prone to water pump failure - replace every 60,000 miles. - Bavarian Autosport - BMW
ECS Tuning recommends this product.

N54 and N55 engines are prone to water pump failure - replace every 60,000 miles. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bavarian Autosport - Corporate Logo
ES#:
4039805
Mfg#:
11517632426
In Stock
ON SALE! SAVE 18%
$397.99

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

$324.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump And Thermostat Kit

ES#4056697 - 11518635090KT5 - Water Pump And Thermostat Kit - Includes everything you need to replace your water pump and thermostat. - Assembled By ECS - BMW

Includes everything you need to replace your water pump and thermostat. 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#:
4056697
Mfg#:
11518635090KT5
Ships on Jun 30, 2026
Auto Notify
ON SALE! SAVE 11%
$485.99

This product was last offered at the strikethrough price on
06-02-2026

$432.90 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Ultimate Water Pump And Thermostat Kit

ES#3604207 - 11517632426KT10 - Ultimate Water Pump And Thermostat Kit - Replace your water pump & add strength to your cooling system! - Assembled By ECS - BMW
ECS Tuning recommends this product.

Replace your water pump & add strength to your cooling system! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Includes ECS billet and silicone hoses and Redline Water Wetter

Brand:
Assembled By ECS - Corporate Logo
ES#:
3604207
Mfg#:
11517632426KT10
In Stock
ON SALE! SAVE 25%
$800.53

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

$602.14 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

BMW Coolant / Antifreeze - 1 Gallon - Blue G48

ES#196290 - 82141467704 - BMW Coolant / Antifreeze - 1 Gallon - Blue G48 - 100% strength concentrate - dilute to a 50:50 ratio with distilled water - Genuine BMW - BMW

100% strength concentrate - dilute to a 50:50 ratio with distilled water affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For Vehicles Produced Up To 2018

Brand:
Genuine BMW - Corporate Logo
ES#:
196290
Mfg#:
82141467704
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.

$28.25

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

$26.48 USD
Free Shipping
on orders $49 and up

High Performance Aluminum Radiator

ES#2992649 - 7046 - High Performance Aluminum Radiator - Featuring an all-aluminum tank and core plus OE-style quick connects. Lower engine temperatures mean more power and longer life of engine components! - CSF - BMW

Featuring an all-aluminum tank and core plus OE-style quick connects. Lower engine temperatures mean more power and longer life of engine components! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with an automatic or DCT transmission only

Brand:
CSF - Corporate Logo
ES#:
2992649
Mfg#:
7046
In Stock
$639.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

High Performance Water Pump - With O-Ring

ES#2581452 - 888010330 - High Performance Water Pump - With O-Ring - Stainless steel impeller and 20% increase in flow! - Stewart Components - BMW

Stainless steel impeller and 20% increase in flow! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
When it comes to cooling, Stewart is the final word in high performance pumps. The ultimate in BMW cooling with a limited lifetime warranty!

Brand:
Stewart Components - Corporate Logo
ES#:
2581452
Mfg#:
888010330
Ships in 1-3 days
$199.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Full Aluminum Water Pump

ES#4488334 - 11515A05704 - Full Aluminum Water Pump - Oe replacment water pump featuring all aluminum construction - Pierburg - BMW

Oe replacment water pump featuring all aluminum construction affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Pierburg - Corporate Logo
ES#:
4488334
Mfg#:
11515A05704
In Stock
$615.05

This product was last offered at the strikethrough price on
04-01-2026

$537.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Mosselman Billet Oil Thermostat - N55 - Silver

ES#4446094 - OTN55.T85 - Mosselman Billet Oil Thermostat - N55 - Silver - The MSL thermostat ensures a cooler oil temperature which will result in more stable performance - Mosselman Turbosystems - BMW

The MSL thermostat ensures a cooler oil temperature which will result in more stable performance affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Mosselman Turbosystems - Corporate Logo
ES#:
4446094
Mfg#:
OTN55.T85
In Stock
$379.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

High Performance Aluminum Radiator

ES#2992648 - 7045 - High Performance Aluminum Radiator - Featuring an all-aluminum tank and core plus OE-style quick connects. Lower engine temperatures mean more power and longer life of engine components! - CSF - BMW

Featuring an all-aluminum tank and core plus OE-style quick connects. Lower engine temperatures mean more power and longer life of engine components! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with manual transmission only

Brand:
CSF - Corporate Logo
ES#:
2992648
Mfg#:
7045
In Stock
$589.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Radiator

ES#3545371 - 3718 - Radiator - Standard replacement radiator - CSF - BMW

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

Brand:
CSF - Corporate Logo
ES#:
3545371
Mfg#:
3718
In Stock
$138.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

N20/N52/N54 Heavy Duty Aluminum Expansion Tank Kit

ES#4635669 - 008378LA02 - N20/N52/N54 Heavy Duty Aluminum Expansion Tank Kit - As expansion tanks age, they are prone to cracking or even exploding. Replace your factory plastic coolant reservoir with a Turner Heavy Duty aluminum tank for durability and piece of mind! - Turner Motorsport - BMW
ECS Tuning recommends this product.

As expansion tanks age, they are prone to cracking or even exploding. Replace your factory plastic coolant reservoir with a Turner Heavy Duty aluminum tank for durability and piece of mind! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
4635669
Mfg#:
008378LA02
In Stock
ON SALE! SAVE 20%
$469.99

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

$375.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump

ES#3493341 - 11518635090 - Water Pump - Keep your engine cool - Pierburg - BMW
ECS Tuning recommends this product.

Keep your engine cool affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Pierburg - Corporate Logo
ES#:
3493341
Mfg#:
11518635090
In Stock at Vendor
$910.99

This product was last offered at the strikethrough price on
02-01-2026

$547.69 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

High Performance Heat Exchanger - Polished

ES#3987599 - 8131 - High Performance Heat Exchanger - Polished - A high performance heat exchanger like this will keep the engine at a more consistent temperature and drop intake temps dramatically. - CSF - BMW

A high performance heat exchanger like this will keep the engine at a more consistent temperature and drop intake temps dramatically. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CSF - Corporate Logo
ES#:
3987599
Mfg#:
8131
In Stock
$695.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Water Pump

ES#4899818 - 11515A05704 - Water Pump - N54 and N55 engines are prone to water pump failure - replace every 60,000 miles. - Ina - BMW

N54 and N55 engines are prone to water pump failure - replace every 60,000 miles. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Ina - Corporate Logo
ES#:
4899818
Mfg#:
11515A05704
In Stock
$439.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

N54 Aluminum Coolant Expansion Tank Relocation Kit - 335i

ES#3647095 - 021942tms13 - N54 Aluminum Coolant Expansion Tank Relocation Kit - 335i - Ditch the weak, factory plastic coolant expansion tank and free up space on the hot side of your engine bay! - Turner Motorsport - BMW
ECS Tuning recommends this product.

Ditch the weak, factory plastic coolant expansion tank and free up space on the hot side of your engine bay! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Compatible with factory/aftermarket cold side intakes as well as hot side intakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
3647095
Mfg#:
021942TMS13
Ships on Aug 10, 2026
Auto Notify
ON SALE! SAVE 15%
$815.99

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

$693.59 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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