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BMW E88 135i N55 3.0L

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BMW E88 135i N55 3.0L Engine Cooling Parts

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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. 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#:
4817856
Mfg#:
N54N55LTKT
Back Ordered
Auto Notify
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

Upper Radiator Hose

ES#38422 - 17127540127 - Upper Radiator Hose - The hose that comes off of the top outlet on the radiator - Genuine BMW - BMW

The hose that comes off of the top outlet on the radiator affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
38422
Mfg#:
17127540127
In Stock
8% off MSRP

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

$99.65

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

$91.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Water Wetter Coolant Additive - 12oz

ES#261427 - 80204 - Water Wetter Coolant Additive - 12oz - Reduces coolant temperatures by as much as 30*F - Redline - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Reduces coolant temperatures by as much as 30*F affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Redline - Corporate Logo
ES#:
261427
Mfg#:
80204
In Stock
$15.99 USD
Free Shipping
on orders $49 and up

Temperature Sensor

ES#34326 - 13621433076 - Temperature Sensor - Monitors coolant / oil temperature - Genuine BMW - BMW

Monitors coolant / oil temperature affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
34326
Mfg#:
13621433076
In Stock
16% off MSRP

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

$66.05

This product was last offered at the strikethrough price on
01-08-2026

$55.45 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Cooler Gasket

ES#2817596 - 11428637820 - Oil Cooler Gasket - Common cause of oil leaks can be easily repaired - Genuine BMW - BMW

Common cause of oil leaks can be easily repaired affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2817596
Mfg#:
11428637820
In Stock
16% off MSRP

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

$47.80

This product was last offered at the strikethrough price on
01-08-2026

$39.95 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump

ES#4349809 - 11517588885 - Water Pump - N54 and N55 engines are prone to water pump failure - replace every 60,000 miles. - Hamburg Tech - BMW

N54 and N55 engines are prone to water pump failure - replace every 60,000 miles. 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#:
4349809
Mfg#:
11517588885
In Stock
$405.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E9x / E8x Coolant Tank & Power Steering Bracket W/ Harness

ES#4883212 - 622-0079 - E9x / E8x Coolant Tank & Power Steering Bracket W/ Harness - All of the hardware necessary to relocate your power steering pump and install a factory coolant tank on the driver's side of your vehicle - Precision Raceworks - BMW

All of the hardware necessary to relocate your power steering pump and install a factory coolant tank on the driver's side of your vehicle affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Precision Raceworks - Corporate Logo
ES#:
4883212
Mfg#:
622-0079
Ships in 6 Business Days
$69.99 USD
Free Shipping
on orders $49 and up

Thermostat

ES#4760002 - 11537601158 - Thermostat - Restore proper function to your cooling system - Bremmen Parts - BMW

Restore proper function to your cooling system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4760002
Mfg#:
11537601158
In Stock
ON SALE! SAVE 20%
$95.99

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

$76.70 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Electric Fan With Shroud

ES#4872470 - 17427545366 - Electric Fan With Shroud - Continental - BMW

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

Brand:
Continental - Corporate Logo
ES#:
4872470
Mfg#:
17427545366
In Stock at Vendor
$560.99

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

$544.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Engine Radiator - Automatic

ES#4336186 - 17117547059 - Engine Radiator - Automatic - 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#:
4336186
Mfg#:
17117547059
In Stock at Vendor
$290.99

This product was last offered at the strikethrough price on
12-23-2025

$252.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Heavy Duty Aluminum Coolant Bleeder Screw

ES#2739096 - 003530ECS01A - Heavy Duty Aluminum Coolant Bleeder Screw - Offering superior fatigue resistance over conventional plastic screws. Say goodbye to snapped and mangled bleeder screw heads! - ECS - BMW MINI

Offering superior fatigue resistance over conventional plastic screws. Say goodbye to snapped and mangled bleeder screw heads! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2739096
Mfg#:
003530ECS01A
In Stock
ON SALE! SAVE 25%
$35.99

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

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

Universal 16" Electric Fan - Black

ES#2652188 - 30102049 - Universal 16" Electric Fan - Black - 2024 CFM. High performance puller fan with curved blades. - Spal - Audi BMW MINI

2024 CFM. High performance puller fan with curved blades. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Spal - Corporate Logo
ES#:
2652188
Mfg#:
30102049
In Stock
$207.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Hose - Radiator to Oil Cooler

ES#38148 - 17117541143 - Coolant Hose - Radiator to Oil Cooler - Replace your leaking hose - Genuine BMW - BMW

Replace your leaking hose affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with automatic transmission

Brand:
Genuine BMW - Corporate Logo
ES#:
38148
Mfg#:
17117541143
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.

$64.74

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

$60.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#3209809 - 17137640515 - Coolant Expansion Tank - Includes level sensor - Rein - BMW
ECS Tuning recommends this product.

Includes level sensor 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#:
3209809
Mfg#:
17137640515
In Stock
$97.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

N55 Performance Silicone Radiator Hose Kit - With OE Connectors

ES#5335373 - 018739LA02 - N55 Performance Silicone Radiator Hose Kit - With OE Connectors - Retains OEM fitment with superior looks and durability. Pre-assembled with factory connectors for easy installation! - ECS - BMW

Retains OEM fitment with superior looks and durability. Pre-assembled with factory connectors for easy installation! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
5335373
Mfg#:
018739LA02
In Stock
ON SALE! SAVE 20%
$189.99

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

$151.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Adjustable Fan Controller Kit

ES#2816698 - MMFANCNTLUPROBE - Adjustable Fan Controller Kit - Fine-tune your cooling system - Mishimoto - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Fine-tune your cooling system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Mishimoto - Corporate Logo
ES#:
2816698
Mfg#:
MMFANCNTLUPROBE
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.

$98.00

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

$88.99 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.

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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