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BMW 328i Engine Heating & Cooling Hoses

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ECS Billet Cylinder Head Outlet Hose Adapter

ES#3552811 - 024797ECS01 - ECS Billet Cylinder Head Outlet Hose Adapter - Upgrade to a much more durable connection from your cylinder head to your thermostat! Commonly referred to as a "Mickey Mouse" flange/adapter. - ECS - BMW

Upgrade to a much more durable connection from your cylinder head to your thermostat! Commonly referred to as a "Mickey Mouse" flange/adapter. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3552811
Mfg#:
024797ECS01
In Stock
ON SALE! SAVE 25%
$76.99

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

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

ECS Aluminized Silicone Water Pump Hose V2.0

ES#4265534 - 008286LA01 - ECS Aluminized Silicone Water Pump Hose V2.0 - The new and improved upgrade N52/N54/N55 owners have been waiting for. Get rid of that failure-prone water pump to thermostat hose. Updated for easier install. - ECS - BMW

The new and improved upgrade N52/N54/N55 owners have been waiting for. Get rid of that failure-prone water pump to thermostat hose. Updated for easier install. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4265534
Mfg#:
008286LA01
In Stock
ON SALE! SAVE 25%
$106.99

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

$80.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

N20 Performance Silicone Radiator Hoses - With OE Connectors

ES#5433746 - 008745LA02 - N20 Performance Silicone Radiator Hoses - With OE Connectors - Retains OEM fitment with superior looks and durability. Includes stainless steel hose clamps and pre-installed factory style connectors. - Turner Motorsport - BMW

Retains OEM fitment with superior looks and durability. Includes stainless steel hose clamps and pre-installed factory style connectors. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
5433746
Mfg#:
008745LA02
In Stock
$189.99 USD
Free Shipping

M52 M54 Silicone Radiator Hose Kit (Connectors included)

ES#4315269 - 006205LA09 - M52 M54 Silicone Radiator Hose Kit (Connectors included) - Retains OEM fitment with superior looks and durability. Connectors included! - ECS - BMW

Retains OEM fitment with superior looks and durability. Connectors included! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4315269
Mfg#:
006205LA09
In Stock
ON SALE! SAVE 25%
$198.99

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

$149.24 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Complete Cooling System Hose Kit

ES#2597228 - 11531436408KT1 - Complete Cooling System Hose Kit - A complete hose kit including coolant - Assembled By ECS - BMW

A complete hose kit including coolant 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2597228
Mfg#:
11531436408KT1
Ships on Aug 19, 2026
Auto Notify
ON SALE! SAVE 10%
$285.99

This product was last offered at the strikethrough price on
06-16-2026

$256.32 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

N52 Exact-Fit Silicone Radiator Hoses

ES#4877083 - 008641LA03 - N52 Exact-Fit Silicone Radiator Hoses - Retains OEM fitment with superior looks and durability. Pre-assembled with factory connectors for easy installation! - ECS - BMW
ECS Tuning recommends this product.

Retains OEM fitment with superior looks and durability. Pre-assembled with factory connectors for easy installation! 10X Entries For Our 25th Anniversary Sweepstakes!

For Vehicles With Engine Code N52B30 (Non-SULEV w/o Auxiliary Heating)

Brand:
ECS - Corporate Logo
ES#:
4877083
Mfg#:
008641LA03
In Stock
ON SALE! SAVE 10%
$130.99

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

$117.89 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

BMP Cylinder Head Coolant Flange

ES#4880971 - 601-0003 - BMP Cylinder Head Coolant Flange - Replaces the stock plastic flange found in the thermostat to cylinder head coolant hose that is known to fail - Precision Raceworks - BMW

Replaces the stock plastic flange found in the thermostat to cylinder head coolant hose that is known to fail

Brand:
Precision Raceworks - Corporate Logo
ES#:
4880971
Mfg#:
601-0003
In Stock
$24.99 USD
Free Shipping
on orders $49 and up

Silicone Radiator Hose Kit

ES#2718145 - 003628ECS01 - Silicone Radiator Hose Kit - Retains OEM fitment with superior looks and durability! - ECS - BMW

Retains OEM fitment with superior looks and durability! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2718145
Mfg#:
003628ECS01
In Stock
ON SALE! SAVE 25%
$113.99

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

$85.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Aluminized Silicone Water Pump Hose - with clamps

ES#3659542 - 020414ecs01KT - ECS Aluminized Silicone Water Pump Hose - with clamps - The upgrade N52/N54/N55 owners have been waiting for - get rid of that failure-prone water pump to thermostat hose - ECS - BMW

The upgrade N52/N54/N55 owners have been waiting for - get rid of that failure-prone water pump to thermostat hose 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3659542
Mfg#:
020414ECS01KT
In Stock
ON SALE! SAVE 25%
$113.99

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

$85.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Performance Coolant Outlet Hose Kit

ES#4164360 - 004481LA01 - ECS Performance Coolant Outlet Hose Kit - Upgrade to a much more durable connection from your thermostat to your cylinder head! - ECS - BMW

Upgrade to a much more durable connection from your thermostat to your cylinder head! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4164360
Mfg#:
004481LA01
In Stock
ON SALE! SAVE 15%
$113.99

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

$96.89 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Hose - Upper

ES#2801494 - 17127531579 - Radiator Hose - Upper - Replace split hoses - Rein - BMW
ECS Tuning recommends this product.

Replace split hoses 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2801494
Mfg#:
17127531579
In Stock
$44.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E46 Radiator Hose - Upper

ES#4304688 - 17127510952 - E46 Radiator Hose - Upper - A common source of cooling system failure - Bremmen Parts - BMW
ECS Tuning recommends this product.

A common source of cooling system failure 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4304688
Mfg#:
17127510952
In Stock
ON SALE! SAVE 21%
$34.99

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

$27.74 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Lower Coolant Hose Assembly

ES#4765679 - 17127548224 - Lower Coolant Hose Assembly - Connects the heater core to the thermostat and expansion tank - URO - BMW

Connects the heater core to the thermostat and expansion tank 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4765679
Mfg#:
17127548224
In Stock
$96.99 USD
Free Shipping

Radiator Hose - Lower

ES#3149237 - 17127564478 - Radiator Hose - Lower - Replace split, hard, or bulging hoses - Rein - BMW

Replace split, hard, or bulging hoses 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
For N52 engines only

Brand:
Rein - Corporate Logo
ES#:
3149237
Mfg#:
17127564478
In Stock
$33.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Hose - Upper

ES#38396 - 17127531579 - Radiator Hose - Upper - Replace split hoses - Genuine BMW - BMW

Replace split hoses

Brand:
Genuine BMW - Corporate Logo
ES#:
38396
Mfg#:
17127531579
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.

$99.65

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

$90.65 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Complete Cooling System Hose Kit

ES#4315899 - 11531436408KT2 - Complete Cooling System Hose Kit - A complete hose kit including coolant and ECS Silicone radiator hoses! - Assembled By ECS - BMW

A complete hose kit including coolant and ECS Silicone radiator hoses! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
4315899
Mfg#:
11531436408KT2
Ships on Aug 19, 2026
Auto Notify
ON SALE! SAVE 19%
$399.99

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

$325.16 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

More About Engine Heating & Cooling Hoses

Over time, the rubber cooling hoses in your engine's cooling system become brittle and can burst or crack, resulting in a coolant leak. Replace old and tired coolant hoses with OEM cooling hoses or quality aftermarket options to save some money.

Let us help you find the parts that fit your BMW

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Manufacturer names and/or part numbers are used only for identification purposes.

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