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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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Silicone Expansion Tank Relocation Heater Hose
10X Entries Into Our F80 M3 Sweepstakes
Turner Motorsport - Corporate Logo
T#:21735881
Part#: 053082LA01
In Stock
Sale - Save 25% $ 75.99

This product was last offered at the strikethrough price on
06-14-2026

$ 56.99 USD
Free Shipping on orders $49 and up
Sale - Save 25%
$ 75.99

This product was last offered at the strikethrough price on
06-14-2026

$ 56.99 USD
Free Shipping on orders $49 and up

Upgraded or replacement silicone heater hose for our N54 expansion tank relocation kits.

60" silicone performance coolant hose featuring a molded 90-degree bend for installs with space constraints.

Features and benefits:

Constructed of 4-Ply reinforced silicone for improved durability over the failure-prone rubber hoses.
Reduced thermal conductivity
Improved resistance to ozone and UV degradation for improved performance and durability.
Turner branded

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Mechanical Thermostat Conversion - M52TU/M54
10X Entries Into Our F80 M3 Sweepstakes
Turner Motorsport - Corporate Logo
T#:20617634
Part#: 008785LA01T
Ships on Jan 11, 2027
Sale - Save 17% $ 376.99

This product was last offered at the strikethrough price on
06-14-2026

Starting at $ 312.37 USD
Free Shipping on orders $49 and up
Sale - Save 17%
$ 376.99

This product was last offered at the strikethrough price on
06-14-2026

Starting at $ 312.37 USD
Free Shipping on orders $49 and up

Replace the Achilles heel of your factory cooling system with a stout and reliable mechanical thermostat setup.

The factory E46 thermostat housing is a combined unit featuring a plastic housing and a built in thermostat that you cannot replace separately. These plastic all-in-one units are commonly know to crack or fail causing a headache, a trip on the tow truck and possible damage to your engine.

Taking cues from the reliable M50 thermostat setup we designed a an assembly that not only converts your plastic housing into a billet aluminum unit but also swaps out the integrated thermostat for a separate replaceable thermostat. The ability to swap out thermostats separately from the whole housing opens up doors to changing thermostats to different temperature ratings based on your application while also providing lower maintenance costs. No longer do you have to replace the whole housing but just the thermostat itself.

The billet housing is designed to be utilized with E46 M3 upper and lower radiator hoses and also features -16 ORB connections for custom radiator hoses. A major upgrade from the factory and aftermarket plastic units. Our thermostat housing kit can be used by the savvy daily driver or the track hero who wants to ensure the durability of their cooling system.

Key benefits:

Uses M50/S50 mechanical thermostat for increased reliability
Option to use aftermarket colder thermostats if desired
Thermostat can be replaced separately for lower maintenance cost
Barbed hose connections for use with E46 M3 hoses or built in -16 ORB connections for custom radiator hoses
Design:

Machined out of a single piece of billet 6061 aluminum, this thermostat housing will withstand higher prolonged temperatures and abuse for performance applications
Black anodized with engraved Turner logo on the front to match the Turner Motorsports Power Steering Reservoir
Viton gasket for superior sealing performance
For use with E46 M3 radiator hoses 11537830715 and 11537830716
Kit contents:

6061 Billet Aluminum Thermostat Housing
Mechanical Thermostat
Thermostat Housing Gasket
Thermostat Harness
Optional Silicone or Rubber E46 M3 coolant hoses
Product Development:

Our Billet Thermostat Housing upgrade was designed, engineered, tested and quality inspected by our Research and Development team at Turner. Nothing but the highest level of precision and quality through leading-edge product development technology including FARO laser scanning for reverse engineering and quality inspection, SolidWorks 3D CAD modeling, rapid prototyping utilizing our in-house 3D printer and rigorous long term product testing.

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OEM Style Hose Clamps
10X Entries Into Our F80 M3 Sweepstakes
Turner Motorsport - Corporate Logo
T#:338927
Part#: HOSE-CLAMPS
In Stock
Sale - Save 3% $ 3.99

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

Starting at $ 3.87 USD
Free Shipping on orders $49 and up
Sale - Save 3%
$ 3.99

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

Starting at $ 3.87 USD
Free Shipping on orders $49 and up
Hose clamps for radiator hoses, coolant hoses, vacuum hoses, or intake hoses. These hose clamps are the same style as your OEM hoses with a smooth inside band to prevent cutting into the hose material.
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Gates - Corporate Logo
T#:592003
Part#: 17127540127
In Stock
$ 55.99 USD
Free Shipping on orders $49 and up
The hose that comes off of the top outlet on the radiator

Gates - Corporate Logo
T#:363924
Part#: 11533400207
In Stock at Vendor
$ 70.99 USD
Free Shipping on orders $49 and up
Aftermarket replacement
Gates - Corporate Logo
T#:592901
Part#: 11531276541
Ships in 1 Business Day
$ 23.00 USD
Free Shipping on orders $49 and up
Hose that connects the thermostat to the temperature time switch housing

Gates - Corporate Logo
T#:362198
Part#: 17127564478
Ships in 1 Business Day
$ 72.99 USD
Free Shipping on orders $49 and up
Replace split, hard, or bulging hoses
Gates - Corporate Logo
T#:591753
Part#: 11531279895
Ships on Nov 12, 2026
$ 29.99

This product was last offered at the strikethrough price on
06-03-2026

$ 26.99 USD
Free Shipping on orders $49 and up
$ 26.99 USD
Free Shipping on orders $49 and up
Replace your radiator hose before a blown hose leaves you stranded

Gates - Corporate Logo
T#:591787
Part#: 11531730351
Ships on Nov 12, 2026
$ 51.99 USD
Free Shipping on orders $49 and up
Attaches the expansion tank to the heater return hose

Gates - Corporate Logo
T#:591754
Part#: 11531286914
Ships on Nov 12, 2026
$ 21.99 USD
Free Shipping on orders $49 and up
$ 21.99 USD
Free Shipping on orders $49 and up
Hose from radiator to water pump
Gates - Corporate Logo
T#:591765
Part#: 11531438633
Ships on Nov 12, 2026
$ 59.99 USD
Free Shipping on orders $49 and up
$ 59.99 USD
Free Shipping on orders $49 and up
Runs from the expansion tank to auxiliary water pump
Gates - Corporate Logo
T#:1673
Part#: 17127510952
Ships on Nov 12, 2026
$ 53.99 USD
Free Shipping on orders $49 and up

 


This upper radiator hose fits the following BMWs:
1999-2000 E46 3 Series Sedan/Wagon - 323i & 328i
1999-2000 E46 3 Series Coupe/Conbertible - 323Ci & 328Ci
2001-2005 E46 3 Series Sedan/Wagon - 325i, 325xi, 330i, 330xi
2001-2006 E46 3 Series Coupe/Convertible - 325Ci, 330Ci

 

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Gates - Corporate Logo
T#:591752
Part#: 11531278045
Ships on Nov 12, 2026
$ 23.99 USD
Free Shipping on orders $49 and up
Replace your radiator hose before a blown hose leaves you stranded.
Gates - Corporate Logo
T#:362110
Part#: 11537830716
Ships in 1 Business Day
$ 48.99

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

$ 46.99 USD
Free Shipping on orders $49 and up
$ 46.99 USD
Free Shipping on orders $49 and up
Connects the radiator to the thermostat housing
Gates - Corporate Logo
T#:591785
Part#: 11531726344
Ships in 1 Business Day
$ 43.99 USD
Free Shipping on orders $49 and up
Replace your radiator hose before a blown hose leaves you stranded.

Gates - Corporate Logo
T#:9642134
Part#: 17127535901
Ships on Nov 12, 2026
$ 30.99 USD
Free Shipping on orders $49 and up

Gates - Corporate Logo
T#:401921
Part#: 11531708499
Ships on Nov 12, 2026
$ 39.99 USD
Free Shipping on orders $49 and up
New upper radiator hose for your BMW
Gates - Corporate Logo
T#:593004
Part#: 13541719967
Ships on Nov 12, 2026
$ 13.99 USD
Free Shipping on orders $49 and up
$ 13.99 USD
Free Shipping on orders $49 and up
Throttle housing small hose

Gates - Corporate Logo
T#:9642133
Part#: 17122754573
Ships on Nov 12, 2026
$ 44.99 USD
Free Shipping on orders $49 and up
Gates - Corporate Logo
T#:592181
Part#: 17127515501
Ships on Nov 12, 2026
$ 124.99 USD
Free Shipping on orders $49 and up
$ 124.99 USD
Free Shipping on orders $49 and up

Gates - Corporate Logo
T#:385314
Part#: 11531436988
Ships on Nov 12, 2026
$ 37.99 USD
Free Shipping on orders $49 and up
Serves as a supply line to the radiator

Gates - Corporate Logo
T#:591784
Part#: 11531722852
Ships on Nov 12, 2026
$ 15.99 USD
Free Shipping on orders $49 and up
Hose from radiator to thermostat housing
Gates - Corporate Logo
T#:593065
Part#: 17127537108
Ships on Nov 12, 2026
$ 66.99 USD
Free Shipping on orders $49 and up
Gates - Corporate Logo
T#:591774
Part#: 11531717622
Ships on Nov 12, 2026
$ 17.99 USD
Free Shipping on orders $49 and up
A common source of cooling system failure


Gates - Corporate Logo
T#:557799
Part#: 11531287682
Ships on Nov 12, 2026
$ 15.99 USD
Free Shipping on orders $49 and up
Replace your radiator hose before a blown connection leaves you stranded
Gates - Corporate Logo
T#:591781
Part#: 11531722215
Ships on Nov 12, 2026
$ 42.99 USD
Free Shipping on orders $49 and up
Upper hose that connects your radiator to the flange
Gates - Corporate Logo
T#:596346
Part#: 64211380527
Back Ordered
$ 18.99 USD
Free Shipping on orders $49 and up
Inlet hose to the heater core

Gates - Corporate Logo
T#:591777
Part#: 11531720678
Back Ordered
$ 18.99 USD
Free Shipping on orders $49 and up
Hose from radiator to water pump

Gates - Corporate Logo
T#:592918
Part#: 11531718982
Back Ordered
$ 20.99 USD
Free Shipping on orders $49 and up
Connects between the Water pump and the thermostat
Gates - Corporate Logo
T#:592903
Part#: 11531287651
Back Ordered
$ 20.99 USD
Free Shipping on orders $49 and up
From water pump to thermostat housing

Gates - Corporate Logo
T#:596352
Part#: 64218387521
Back Ordered
$ 64.99 USD
Free Shipping on orders $49 and up
From heater core to engine