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BMW 135i Engine Cooling Parts

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ECS Cooling System Refresh Kit - Level 2

ES#2597712 - 11537558522KT - ECS Cooling System Refresh Kit - Level 2 - A more advanced refresh kit - with primary cooling system hoses and accessory belt - Assembled By ECS - BMW

A more advanced refresh kit - with primary cooling system hoses and accessory belt affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with manual transmission only

Brand:
Assembled By ECS - Corporate Logo
ES#:
2597712
Mfg#:
11537558522KT
Back Ordered
Auto Notify
ON SALE! SAVE 19%
$830.99

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

$671.17 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

ECS Cooling System Refresh Kit - Level 2

ES#4772370 - 11537558523KT - ECS Cooling System Refresh Kit - Level 2 - Assembled By ECS - BMW

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#:
4772370
Mfg#:
11537558523KT
Back Ordered
Auto Notify
ON SALE! SAVE 19%
$829.99

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

$670.98 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Water Hose With Gasket - Water Pump To Engine Inlet

ES#4689906 - 11537584630r - Water Hose With Gasket - Water Pump To Engine Inlet - Prevents leaks and comebacks from reusing old connectors and o-rings. - Rein - BMW

Prevents leaks and comebacks from reusing old connectors and o-rings. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4689906
Mfg#:
11537584630R
Ships in 1 Business Day
$40.99 USD
Free Shipping
on orders $49 and up

Coolant hose

ES#1897618 - 17127599450 - Coolant hose - Connects your radiator to the thermostat - Genuine BMW - BMW

Connects your radiator to the thermostat affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
1897618
Mfg#:
17127599450
Ships in 1-2 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.

$134.99

This product was last offered at the strikethrough price on
06-20-2026

$125.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Cooler Gasket

ES#2739870 - 11427525335 - Oil Cooler Gasket - Aftermarket solution to a common cause of oil leaks. It can be easily repaired - URO - BMW

Aftermarket solution to a common cause of oil leaks. It can be easily repaired affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2739870
Mfg#:
11427525335
In Stock
$9.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Universal 12" Electric Fan - Black

ES#4147305 - 30102029 - Universal 12" Electric Fan - Black - 1328 CFM. High performance puller fan with curved blades. - Spal - Audi BMW MINI

1328 CFM. High performance puller fan with curved blades. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Spal - Corporate Logo
ES#:
4147305
Mfg#:
30102029
In Stock
$207.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Connector - Priced Each

ES#38164 - 17117548104 - Connector - Priced Each - Connector for radiator - Genuine BMW - BMW

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

Brand:
Genuine BMW - Corporate Logo
ES#:
38164
Mfg#:
17117548104
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.

$27.99

This product was last offered at the strikethrough price on
06-20-2026

$26.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

2 Pin Connector

ES#4772597 - 61132359999 - 2 Pin Connector - Includes connector housing with terminals and seals. Commonly used for the coolant level sensor. - ECS - BMW MINI

Includes connector housing with terminals and seals. Commonly used for the coolant level sensor. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4772597
Mfg#:
61132359999
Ships on Jul 28, 2026
Auto Notify
ON SALE! SAVE 25%
$10.99

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

$8.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat

ES#2813514 - 11537549476 - Thermostat - Restore proper function to your cooling system - Hamburg Tech - BMW

Restore proper function to your cooling system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2813514
Mfg#:
11537549476
Ships in 1 Business Day
$76.99

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

$75.99 USD
Free Shipping
on orders $49 and up

Oil Cooler thermostat replacment kit

ES#4056700 - 11428637820KT2 - Oil Cooler thermostat replacment kit - Includes both oil filter housing gaskets, new oil cooler thermostat, and a Liqui Moly oil change kit - Assembled By ECS - BMW

Includes both oil filter housing gaskets, new oil cooler thermostat, and a Liqui Moly oil change 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#:
4056700
Mfg#:
11428637820KT2
In Stock
$300.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Universal Oil Cooler - 19 Row, with Thermostat

ES#2764437 - MM0CULT - Universal Oil Cooler - 19 Row, with Thermostat - Serious engine oil cooling for the most demanding engines - Mishimoto - Audi BMW Volkswagen MINI

Serious engine oil cooling for the most demanding engines affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For custom applications only. Not a direct bolt on.

Brand:
Mishimoto - Corporate Logo
ES#:
2764437
Mfg#:
MM0CULT
In Stock
$599.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Replacement Kit

ES#2582080 - N524TSTKT - Thermostat Replacement Kit - Includes mounting hardware and coolant - Genuine BMW - BMW

Includes mounting hardware and coolant affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2582080
Mfg#:
N524TSTKT
In Stock
$298.99

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

$296.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Water Pump And Thermostat Kit - N54

ES#2763074 - 11517632426KT4 - Water Pump And Thermostat Kit - N54 - Includes everything you need to replace your water pump and thermostat. Featuring OE water pump and thermostat. - Assembled By ECS - BMW

Includes everything you need to replace your water pump and thermostat. Featuring OE water pump and thermostat. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Featuring all German-made components - water pump, Wahler thermostat, Genuine BMW coolant

Brand:
Assembled By ECS - Corporate Logo
ES#:
2763074
Mfg#:
11517632426KT4
Ships on Oct 29, 2026
$581.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

N54/N55 BMW Automatic Transmission Cooler - 135 W/Thermostat

ES#4714974 - BMS-135-TC-WTH - N54/N55 BMW Automatic Transmission Cooler - 135 W/Thermostat - Keep your automatic transmission temperatures under control - Burger Motorsports - BMW

Keep your automatic transmission temperatures under control affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Burger Motorsports - Corporate Logo
ES#:
4714974
Mfg#:
BMS-135-TC-WTH
Ships on Jul 8, 2026
$573.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cooolant Hose w/ Metal Connector

ES#4316679 - 11537584549PRM - Cooolant Hose w/ Metal Connector - Connects the thermostat to the cylinder head - replaces the failure prone plastic connector - URO Premium - BMW

Connects the thermostat to the cylinder head - replaces the failure prone plastic connector affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
URO Premium - Corporate Logo
ES#:
4316679
Mfg#:
11537584549PRM
In Stock
$32.99 USD
Free Shipping
on orders $49 and up

Radiator Return Hose

ES#4338944 - 64216951946 - Radiator Return Hose - Febi - BMW

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
4338944
Mfg#:
64216951946
In Stock
$42.99

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

$34.99 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

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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