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BMW 335i Engine Cooling Parts

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ECS Cooling System Refresh Kit - Level 1

ES#2597786 - 11537549476RKT1 - ECS Cooling System Refresh Kit - Level 1 - An entry level cooling refresh kit - with high quality OEM & aftermarket components - Assembled By ECS - BMW

An entry level cooling refresh kit - with high quality OEM & aftermarket components 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with automatic or DCT transmission only

Brand:
Assembled By ECS - Corporate Logo
ES#:
2597786
Mfg#:
11537549476RKT1
Back Ordered
Auto Notify
ON SALE! SAVE 24%
$704.77

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

$533.24 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Water Hose Assembly - Thermostat, Trans Oil Cooler, Heater Hose (3-Way Hose)

ES#2562739 - 17127604544 - Water Hose Assembly - Thermostat, Trans Oil Cooler, Heater Hose (3-Way Hose) - Genuine BMW - BMW

Brand:
Genuine BMW - Corporate Logo
ES#:
2562739
Mfg#:
17127604544
Ships in 5 Business 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.

$179.99

This product was last offered at the strikethrough price on
07-20-2026

$176.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

3/8"(9mm) Band Hose Clamp - 20-32mm

ES#2770163 - 003402ECS06A-05 - 3/8"(9mm) Band Hose Clamp - 20-32mm - German-style 304 stainless hose clamp - ECS - Audi BMW Volkswagen Mercedes Benz MINI Porsche

German-style 304 stainless hose clamp 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2770163
Mfg#:
003402ECS06A-05
In Stock
ON SALE! SAVE 25%
$4.99

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

$3.74 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Hose Gasket

ES#4727032 - 11537545302 - Radiator Hose Gasket - The gasket that seals the junction between the engine block and radiator hose - Elring - BMW

The gasket that seals the junction between the engine block and radiator hose 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Elring - Corporate Logo
ES#:
4727032
Mfg#:
11537545302
In Stock
$12.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank

ES#4809970 - 17137642160 - Expansion Tank - Quality replacement for your cracked and/or damaged coolant expansion tank. - URO - BMW

Quality replacement for your cracked and/or damaged coolant expansion tank. 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4809970
Mfg#:
17137642160
Back Ordered
$80.81 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Billet Coolant Reservoir Cap - Anodized Blue

ES#4505866 - CO0LANTCAPBLUE - Billet Coolant Reservoir Cap - Anodized Blue - Upgrade the visual appeal of your engine bay with Vargas Turbo Technologies' Billet Caps! - Vargas Turbo Technologies - BMW

Upgrade the visual appeal of your engine bay with Vargas Turbo Technologies' Billet Caps! 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Vargas Turbo Technologies - Corporate Logo
ES#:
4505866
Mfg#:
CO0LANTCAPBLUE
In Stock
$79.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Return Hose

ES#178032 - 64216951946 - Radiator Return Hose - Connects from the top side of the radiator to the expansion tank - Genuine BMW - BMW

Connects from the top side of the radiator to the expansion tank

Brand:
Genuine BMW - Corporate Logo
ES#:
178032
Mfg#:
64216951946
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.

$62.99

This product was last offered at the strikethrough price on
07-20-2026

$60.99 USD
Free Shipping
on orders $49 and up
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!

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

HEAT EXCHANGER FOR E

ES#2583931 - 17217628058 - HEAT EXCHANGER FOR E - Genuine BMW - BMW

Brand:
Genuine BMW - Corporate Logo
ES#:
2583931
Mfg#:
17217628058
Back Ordered
6% off MSRP

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

$266.99

This product was last offered at the strikethrough price on
07-20-2026

$250.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

N54/N55 Low Temp Oil Thermostat Kit - 70c

ES#5456347 - 008731KT - N54/N55 Low Temp Oil Thermostat Kit - 70c - New thermostat and spring. Featuring a low temp thermostat - 40 degrees Celsius/ 72 degrees Fahrenheit lower than factory. - Assembled By ECS - BMW

New thermostat and spring. Featuring a low temp thermostat - 40 degrees Celsius/ 72 degrees Fahrenheit lower than factory. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
5456347
Mfg#:
008731KT
In Stock
ON SALE! SAVE 20%
$74.99

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

$59.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Hose Assembly

ES#4879284 - 17127548229 - Water Hose Assembly - Resists warping and cracking that can lead to coolant leakage - URO - BMW

Resists warping and cracking that can lead to coolant leakage 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4879284
Mfg#:
17127548229
In Stock
$97.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Line Fitting Adapter

ES#2817090 - MM0CF-BMW - Oil Line Fitting Adapter - Allows you to use larger after market oil coolers that utilize AN fittings - Mishimoto - BMW

Allows you to use larger after market oil coolers that utilize AN fittings For vehicles with high speed synchronization

Brand:
Mishimoto - Corporate Logo
ES#:
2817090
Mfg#:
MM0CF-BMW
In Stock
$88.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Hose - Lower

ES#2570158 - 17127627104 - Coolant Hose - Lower - Connects radiator to heat exchanger - Genuine BMW - BMW

Connects radiator to heat exchanger

Brand:
Genuine BMW - Corporate Logo
ES#:
2570158
Mfg#:
17127627104
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.

$79.99

This product was last offered at the strikethrough price on
07-20-2026

$77.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Radiator

ES#2598998 - 17117628057 - Radiator - Genuine BMW - BMW

For vehicles with M Sports package (P337A) & M Sport brakes (S2NHA). | Left

Brand:
Genuine BMW - Corporate Logo
ES#:
2598998
Mfg#:
17117628057
In Stock
9% off MSRP

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

$351.99

This product was last offered at the strikethrough price on
07-20-2026

$321.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#5341169 - 17137642160 - Coolant Expansion Tank - replacement for your cracked and/or damaged coolant expansion tank. - Rein - BMW

replacement for your cracked and/or damaged coolant expansion tank. 2X Entries For Our 25th Anniversary Sweepstakes!
2X Entries For Our G87 M2 Sweepstakes!

Brand:
Rein - Corporate Logo
ES#:
5341169
Mfg#:
17137642160
Back Ordered
Auto Notify
$85.00

This product was last offered at the strikethrough price on
04-27-2026

$79.99 USD
Free Shipping
on orders $49 and up

Heater Return & Thermostat Hose

ES#1897621 - 17127599455 - Heater Return & Thermostat Hose - Replace damaged hoses to stop leaks and make sure your vehicle is running its absolute best - Genuine BMW - BMW

Replace damaged hoses to stop leaks and make sure your vehicle is running its absolute best

Brand:
Genuine BMW - Corporate Logo
ES#:
1897621
Mfg#:
17127599455
Ships in 5 Business 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.

$215.99

This product was last offered at the strikethrough price on
07-20-2026

$211.99 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.

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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