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BMW 335i Engine Cooling Parts

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ECS Cooling System Refresh Kit - Level 3

ES#2739952 - 11510392553RKT2 - ECS Cooling System Refresh Kit - Level 3 - Everything you need to totally service your cooling system, including a radiator and belt service. Now Includes ECS Billet Aluminum Radiator Drain Plug! - Assembled By ECS - BMW

Everything you need to totally service your cooling system, including a radiator and belt service. Now Includes ECS Billet Aluminum Radiator Drain Plug! 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with automatic or DCT transmission only

Brand:
Assembled By ECS - Corporate Logo
ES#:
2739952
Mfg#:
11510392553RKT2
Back Ordered
Auto Notify
ON SALE!
$1316.99

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

$1201.01 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Radiator Vent Hose

ES#38468 - 17127565094 - Radiator Vent Hose - Located on the top of the radiator - Genuine BMW - BMW

Located on the top of the radiator

Brand:
Genuine BMW - Corporate Logo
ES#:
38468
Mfg#:
17127565094
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.

$79.99

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

$74.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Temperature Sensor

ES#2867843 - 13621433076 - Temperature Sensor - Monitors coolant / oil temperature - Febi - BMW
ECS Tuning recommends this product.

Monitors coolant / oil temperature 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2867843
Mfg#:
13621433076
In Stock at Vendor
$17.99

This product was last offered at the strikethrough price on
06-22-2026

$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Turbo Water Return Line - Front Turbo

ES#4689854 - 11537558900 - Turbo Water Return Line - Front Turbo - Rein OE quality turbo coolant hose - Rein - BMW

Rein OE quality turbo coolant hose 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4689854
Mfg#:
11537558900
In Stock
$60.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Drain Plug - With Sleeve

ES#38108 - 17117521781 - Drain Plug - With Sleeve - Complete drain plug assembly - Genuine BMW - BMW

Complete drain plug assembly For vehicles with automatic transmission

Brand:
Genuine BMW - Corporate Logo
ES#:
38108
Mfg#:
17117521781
In Stock
$32.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Replacement Kit

ES#2713411 - 11537601158KT1 - Thermostat Replacement Kit - Includes coolant - Assembled By ECS - BMW

Includes coolant 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2713411
Mfg#:
11537601158KT1
In Stock
ON SALE! SAVE 24%
$106.99

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

$81.44 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Radiator Vent Hose

ES#3171186 - 17127565094 - Radiator Vent Hose - Located on the top of the radiator - Rein - BMW

Located on the top of the radiator 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
3171186
Mfg#:
17127565094
In Stock
$34.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Engine Radiator - Manual

ES#38174 - 17117558480 - Engine Radiator - Manual - Keep your engine cooling properly - Genuine BMW - BMW

Keep your engine cooling properly

Brand:
Genuine BMW - Corporate Logo
ES#:
38174
Mfg#:
17117558480
In Stock
ON SALE!
$475.99

This product was last offered at the strikethrough price on
06-15-2026

$467.67 USD
This product is lifetime replacement eligible Lifetime Replacement

Turbo Water Return Line - Rear Turbo

ES#4509082 - 11537558902 - Turbo Water Return Line - Rear Turbo - Carries coolant away from the rear turbocharger - Rein - BMW

Carries coolant away from the rear turbocharger 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat! For E9X N54 LHD only! Will not fit Euro RHD models.

Brand:
Rein - Corporate Logo
ES#:
4509082
Mfg#:
11537558902
In Stock
$56.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Hose with Gasket - Water Pump to Engine Inlet

ES#2665000 - 11537598236 - Water Hose with Gasket - Water Pump to Engine Inlet - Genuine BMW - BMW

Brand:
Genuine BMW - Corporate Logo
ES#:
2665000
Mfg#:
11537598236
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.

$449.99

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

$440.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Heater Core Supply Hose

ES#178038 - 64216983858 - Heater Core Supply Hose - Supply hose from coolant flange to heater core - Genuine BMW - BMW

Supply hose from coolant flange to heater core

Brand:
Genuine BMW - Corporate Logo
ES#:
178038
Mfg#:
64216983858
Ships in 3 Business Days
9% off MSRP

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

$77.69

This product was last offered at the strikethrough price on
07-15-2026

$70.79 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

3/8"/9mm Band Hose Clamp - 12-20mm

ES#2770161 - 003402ECS06A-03 - 3/8"/9mm Band Hose Clamp - 12-20mm - 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#:
2770161
Mfg#:
003402ECS06A-03
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

Turbo Water Return Line - Front Turbo

ES#4765875 - 11537558900 - Turbo Water Return Line - Front Turbo - Bremmen OE quality turbo coolant hose - Bremmen Parts - BMW

Bremmen OE quality turbo coolant hose 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4765875
Mfg#:
11537558900
In Stock
ON SALE! SAVE 20%
$67.99

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

$54.39 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

HVAC Heater Core

ES#2136260 - 64119190595 - HVAC Heater Core - Genuine BMW - BMW

Brand:
Genuine BMW - Corporate Logo
ES#:
2136260
Mfg#:
64119190595
Ships in 5 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.

$167.99

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

$153.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Universal Oil Cooler - 19 Row

ES#2764082 - MM0CUL - Universal Oil Cooler - 19 Row - Serious engine oil cooling for the most demanding engines - Mishimoto - Audi BMW Volkswagen MINI

Serious engine oil cooling for the most demanding engines For custom applications only. Not a direct bolt on.

Brand:
Mishimoto - Corporate Logo
ES#:
2764082
Mfg#:
MM0CUL
In Stock at Vendor
$536.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant return line

ES#4818578 - 17127548229 - Coolant return line - From thermostat to heater valve - Bremmen Parts - BMW

From thermostat to heater valve 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818578
Mfg#:
17127548229
Ships on Aug 11, 2026
Auto Notify
ON SALE! SAVE 20%
$98.99

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

$79.14 USD
Free Shipping
on orders $49 and up

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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