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BMW Coolant & Radiator Hoses

We offer replacement hoses from several OE brands that we trust, along with performance silicone upgrades for those who want increased wear resistance compared to factory rubber.
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OBDI Conversion Part - Turner Motorsport OBD-I 3.2 Coolant Hose Adapter
Turner Motorsport - Corporate Logo
T#:3667
Part#: TEN9931007
In Stock
Sale - Save 15% $44.95
$38.21
Free Shipping on orders $49 and up
Sale - Save 15% $44.95
$38.21
Free Shipping on orders $49 and up
Made in the USA The TMS Coolant Hose Adapter is needed when you are upgrading to OBD-I (1992-1995 components) on a 3.2 or 2.8 liter engine. These earlier engines use a fitting to secure the heater hose to the front engine cover. The 3.2 and 2.8 liter engines do not have this fitting. This is also needed if you are doing an E30 3.2 or 2.8 engine conversion using OBD-I electronics.


There is no way to affix a coolant hose to the 3.2L M3 Engine in stock form.


Apply two-part epoxy (Included) and insert the TMS Coolant Hose Adapter.


Tap into place with hammer to assure a watertight seal.


Once installed, this is how the fitting should look, ready to accept the coolant hose.


Clean off any excess epoxy. Once installed, the fitting appears to be a factory part.


Included with the kit: TMS Coolant Hose Adapter, two-part epoxy w/mixing cup, wooden mixing stick.

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ECS E46 M3 Silicone Radiator Hose Kit
ECS - Corporate Logo
T#:378149
Part#: 003631ECS01
In Stock
Sale - Save 20% $143.95
$115.16
Free Shipping
Sale - Save 20% $143.95
$115.16
Free Shipping

Unlike factory rubber hoses, silicone can withstand higher temperatures and pressures with minmal wear. Rubber will wear out and weaken so don't let it bite you when it counts! Silicone has been proven during extreme racing conditions and won't be the weak link that ruins your day.

This kit is specifically designed for the enthusiast that wants uprated cooling hoses, but also wants to address the heat-cycled plastic connectors and o-rings that are also prone to failure in higher mileage or older vehicles.

This E46 M3 ECS silicone hose set replaces two hoses - 
11537830716, upper radiator hose 
11537830715, lower radiator hose 

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ECS S54 Exact-fit Water Pipe Connecting Line
ECS - Corporate Logo
T#:393542
Part#: 013178ECS
In Stock
Sale - Save 15% $114.95
$97.71
Free Shipping on orders $49 and up
Sale - Save 15% $114.95
$97.71
Free Shipping on orders $49 and up

The ECS Exact-fit water line is a perfect upgrade if you're tired of dealing with brittle failure prone parts under your hood. The reinforced fluorosilicone hose has been pre-formed to route the same way your stock line did so you can maintain that clean factory installed appearance. Upgrading the line fitting with a billet aluminum piece eliminates the failure prone plastic fitting giving your cooling system strength.

Included:

Aluminum fitting

  • Material: 6061-T6 Aluminum - MIL-A-8625F Type II Class 2 black anodized for superior corrosion resistance and strength
  • Single-piece design avoiding additional interfaces that may cause leaks
  • Matches OEM style connection to upper coolant hose

Silicone hose

  • Material: Black Reinforced Fluorosilicone Lined Coolant Safe Silicone
  • Pre-formed hose to ensure OEM style routing and appearance
  • Can maintain the use of your stock retaining clips to route the hose in identical locations (due to slight variations in silicone the retainer on the expansion tank may not fit)
  • Pressure tested to ensure 2X operating pressures to ensure reliability
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ECS Silicone Radiator Hose Kit (with Connectors) - E46 Non M
ECS - Corporate Logo
T#:638748
Part#: 006205LA09
In Stock
$143.95
Free Shipping
Unlike factory rubber hoses, silicone can withstand higher temperatures and pressures with minimal wear. Rubber will wear out and weaken so don't let it bite you when it counts! Silicone has been proven during extreme racing conditions and won't be the weak link that ruins your day. This kit is specifically designed for the enthusiast that wants uprated cooling hoses, but also wants to address the heat-cycled plastic connectors and O-rings that are also prone to failure in higher mileage or older vehicles.Kit includes a brand new pair of connectors. This E46 NM ECS silicone hose set replaces two hoses - Upper Radiator Hose - 17127510952 Lower Radiator Hose - 11531436408
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ECS E36 Silicone Radiator Hose Kit
ECS - Corporate Logo
T#:362964
Part#: 003628ECS01
In Stock
Sale - Save 15% $81.95
$69.66