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BMW 135i Engine Cooling Parts

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Fluid Level Sensor

ES#260195 - 17137524812 - Fluid Level Sensor - This sensor is used in multiple locations, depending on model: coolant level, washer level, and power steering level - URO - BMW MINI

This sensor is used in multiple locations, depending on model: coolant level, washer level, and power steering level 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
260195
Mfg#:
17137524812
In Stock
$10.59 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Anti-Freeze / Coolant - 1.5 Liter

ES#1912 - AF G001100 - Anti-Freeze / Coolant - 1.5 Liter - Blue Pentofrost Antifreeze coolant in color. Meets VAG G11 and MB 325.0 standards. - Pentosin - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Blue Pentofrost Antifreeze coolant in color. Meets VAG G11 and MB 325.0 standards.

Brand:
Pentosin - Corporate Logo
ES#:
1912
Mfg#:
AF G001100
In Stock
$14.99 USD
Free Shipping
on orders $49 and up

Radiator Carrier - Right

ES#3998893 - 17107524914 - Radiator Carrier - Right - Plastic side frame for radiator - URO - BMW

Plastic side frame for radiator 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
3998893
Mfg#:
17107524914
In Stock
$49.99 USD
Free Shipping
on orders $49 and up

LINE, HEATER RETURN - THERMO

ES#4181212 - 17127564614 - LINE, HEATER RETURN - THERMO - Genuine BMW - BMW

For Vehicles Equipped with Manual Transmissions

Brand:
Genuine BMW - Corporate Logo
ES#:
4181212
Mfg#:
17127564614
Ships in 1-2 days
6% off MSRP

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

$194.99

This product was last offered at the strikethrough price on
10-20-2026

$182.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Basic Cooling System Upgrade Kit

ES#4759976 - 024797ECS03KT - Basic Cooling System Upgrade Kit - Bulletproof your N54 cooling system! - Assembled By ECS - BMW

Bulletproof your N54 cooling system! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
4759976
Mfg#:
024797ECS03KT
In Stock
ON SALE! SAVE 18%
$637.99

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

$523.17 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Radiator Hose

ES#4475690 - 64216951946 - Radiator Hose - Connects from the top side of the radiator to the expansion tank - Bremmen Parts - BMW

Connects from the top side of the radiator to the expansion tank 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4475690
Mfg#:
64216951946
In Stock
ON SALE!
$28.99

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

$27.12 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant hose

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

Connects your radiator to the thermostat

Brand:
Genuine BMW - Corporate Logo
ES#:
1897618
Mfg#:
17127599450
Ships in 1-2 days
6% 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
10-20-2026

$126.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

N54/N55 Low Temp Oil Thermostat Kit - 70c

ES#4817856 - n54n55ltKT - N54/N55 Low Temp Oil Thermostat Kit - 70c - New billet thermostat cover, hardware and gasket. Featuring a low temp thermostat - 40 degrees Celsius/ 72 degrees Fahrenheit lower than factory. - Assembled By ECS - BMW

New billet thermostat cover, hardware and gasket. Featuring a low temp thermostat - 40 degrees Celsius/ 72 degrees Fahrenheit lower than factory. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
4817856
Mfg#:
N54N55LTKT
Back Ordered
ON SALE! SAVE 18%
$152.99

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

$125.58 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Outlet Hose

ES#4818543 - 11537541992 - Coolant Outlet Hose - Attached to the outlet on the thermostat housing - Bremmen Parts - BMW

Attached to the outlet on the thermostat housing 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818543
Mfg#:
11537541992
In Stock
ON SALE! SAVE 21%
$33.99

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

$26.92 USD
Free Shipping
on orders $49 and up

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 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
4428271
Mfg#:
090744ECS09
Back Ordered
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

Coolant Expansion Tank Cap

ES#4840141 - 17117639020 - Coolant Expansion Tank Cap - Keep that coolant expansion tank sealed - Hamburg Tech - BMW

Keep that coolant expansion tank sealed We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
4840141
Mfg#:
17117639020
In Stock
$13.75 USD
Free Shipping
on orders $49 and up

Radiator Return Hose

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

We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
4338944
Mfg#:
64216951946
Ships in 1 Business Day
$42.99

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

$41.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Return Hose

ES#2801883 - 64216951946 - Radiator Return Hose - Connects from the top side of the radiator to the expansion tank - Rein - BMW

Connects from the top side of the radiator to the expansion tank 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2801883
Mfg#:
64216951946
In Stock
$21.99 USD
Free Shipping
on orders $49 and up

ISA Screw With Washer

ES#16141 - 07129905537 - ISA Screw With Washer - M6X30 - Genuine BMW - BMW

M6X30

Brand:
Genuine BMW - Corporate Logo
ES#:
16141
Mfg#:
07129905537
In Stock
$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Silicone Coolant Pipe Repair Kit

ES#4316579 - 11537558523RPR - Silicone Coolant Pipe Repair Kit - Replaces the rubber section of the water pump inlet pipe - includes two clamps - URO - BMW

Replaces the rubber section of the water pump inlet pipe - includes two clamps 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
For vehicles with automatic transmission only

Brand:
URO - Corporate Logo
ES#:
4316579
Mfg#:
11537558523RPR
In Stock
$14.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Freeze Plug

ES#18320 - 11121733403 - Freeze Plug - 22.0MM - Genuine BMW - BMW

22.0MM

Brand:
Genuine BMW - Corporate Logo
ES#:
18320
Mfg#:
11121733403
In Stock
$9.99 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

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