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BMW 135i Radiator Parts

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Radiator - Automatic

ES#4658372 - 17117788903 - Radiator - Automatic - This genuine BMW Radiator replaces your cracked, clogged, or otherwise worn out radiator and helps prevent the cooling system from overheating. - Genuine BMW - BMW

This genuine BMW Radiator replaces your cracked, clogged, or otherwise worn out radiator and helps prevent the cooling system from overheating. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For Automatic Transmissions Only

Brand:
Genuine BMW - Corporate Logo
ES#:
4658372
Mfg#:
17117788903
In Stock
ON SALE!
$475.99

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

$452.19 USD
This product is lifetime replacement eligible Lifetime Replacement

Engine Radiator - Manual

ES#2580523 - 17117558480 - Engine Radiator - Manual - Keep your engine cooling properly - Mahle-Behr - BMW

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

Brand:
Mahle-Behr - Corporate Logo
ES#:
2580523
Mfg#:
17117558480
Ships in 1-2 days
$338.47 USD
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. 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#:
5456347
Mfg#:
008731KT
In Stock
ON SALE! SAVE 23%
$74.99

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

$57.74 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Engine Radiator - Manual

ES#2580524 - 17117558480 - Engine Radiator - Manual - Keep your engine cooling properly - Nissens - BMW

Keep your engine cooling properly We Price Match - Give Us A Call or Chat! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Nissens - Corporate Logo
ES#:
2580524
Mfg#:
17117558480
In Stock
38% off MSRP

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

$395.99

This product was last offered at the strikethrough price on
04-30-2026

$243.99 USD
This product is lifetime replacement eligible Lifetime Replacement

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

$1199.63 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

N54/N55 BMW Automatic Transmission Cooler - 135

ES#3971047 - BMSTRANSCOOLER - N54/N55 BMW Automatic Transmission Cooler - 135 - 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#:
3971047
Mfg#:
BMSTRANSCOOLER
Ships on Jul 22, 2026
$399.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Engine Radiator - Automatic

ES#2702317 - 17117547059 - Engine Radiator - Automatic - Keep your engine cooling properly - Mahle-Behr - BMW
ECS Tuning recommends this product.

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

Brand:
Mahle-Behr - Corporate Logo
ES#:
2702317
Mfg#:
17117547059
In Stock
$377.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Cover Upgrade Kit - Black

ES#4428271 - 090744ECS09 - Thermostat Cover Upgrade Kit - Black - Dress up your engine bay and add a bit of additional oil cooling - ECS - BMW

Dress up your engine bay and add a bit of additional oil cooling affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4428271
Mfg#:
090744ECS09
Back Ordered
Auto Notify
ON SALE! SAVE 15%
$79.99

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

$67.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Turner N54 Performance Radiator Kit - Manual Transmission

ES#4932493 - 004443LA01KT - Turner N54 Performance Radiator Kit - Manual Transmission - Features A CSFxTurner High Performance Dual Core Radiator and must have upgraded silicone cooling lines needed for a confidence inspiring cooling enhancement. - Assembled By ECS - BMW

Features A CSFxTurner High Performance Dual Core Radiator and must have upgraded silicone cooling lines needed for a confidence inspiring cooling enhancement. 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#:
4932493
Mfg#:
004443LA01KT
Ships on Sep 14, 2026
Auto Notify
ON SALE!
$1092.99

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

$1004.64 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Universal 12" Electric Fan - Black

ES#4147274 - 30100375 - Universal 12" Electric Fan - Black - 861 CFM. High performance puller fan with straight blades. - Spal - Audi BMW MINI

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

Brand:
Spal - Corporate Logo
ES#:
4147274
Mfg#:
30100375
In Stock
13% off MSRP

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

$114.99

This product was last offered at the strikethrough price on
06-19-2026

$99.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

MMX Low Temp Thermostat

ES#4429929 - MMR17-0101 - MMX Low Temp Thermostat - Control those oil temps with a new thermostat. - MMX Performance - BMW

Control those oil temps with a new thermostat. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For 2008 and up models

Brand:
MMX Performance - Corporate Logo
ES#:
4429929
Mfg#:
MMR17-0101
Ships in 1 Business Day
$70.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Lower Radiator Hose

ES#2713170 - 17127564480 - Lower Radiator Hose - The hose that attaches to the bottom of the radiator - Rein - BMW

The hose that attaches to the bottom of the radiator 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#:
2713170
Mfg#:
17127564480
In Stock
$50.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Cooling System Refresh Kit - Level 3

ES#2739949 - 11537558522KT2 - 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! 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#:
2739949
Mfg#:
11537558522KT2
Back Ordered
Auto Notify
ON SALE! SAVE 19%
$1110.99

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

$903.13 USD
This product is lifetime replacement eligible Partial Replacement

Turner Motorsport Expansion Tank Wire Harness Extension - E9X/E8X N54

ES#3569509 - 021942TMS05 - Turner Motorsport Expansion Tank Wire Harness Extension - E9X/E8X N54 - Allows you to relocate your coolant reservoir seamlessly - Turner Motorsport - BMW

Allows you to relocate your coolant reservoir seamlessly affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
3569509
Mfg#:
021942TMS05
In Stock
ON SALE! SAVE 25%
$26.99

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

$20.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Mishimoto Universal Curved Blade Electrical Fan - 14"

ES#4265263 - MMFAN-14C - Mishimoto Universal Curved Blade Electrical Fan - 14" - 1300 CFM. High performance fan with curved blades. - Mishimoto - Audi BMW Volkswagen Mercedes Benz MINI Porsche

1300 CFM. High performance fan with curved blades. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Mishimoto - Corporate Logo
ES#:
4265263
Mfg#:
MMFAN-14C
In Stock
$104.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Radiator Parts

Keep it cool with a new radiator or upgrade for better cooling capacity with aftermarket performance radiator options.

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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