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008645LA02 - ECS Exact-Fit Silicone Radiator Hoses - E9X M3 S65

ECS Exact-Fit Silicone Radiator Hoses - E9X M3 S65

ECS

T#: 39531769 | Part#: 008645LA02

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

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SALE: $168.77 (3% OFF)

WAS: $173.99 on 05-03-2026

This product was last offered at the strikethrough price on
05-03-2026

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Product Details

Tired of dealing with brittle, dry-rotted rubber hoses? Whether you're refreshing your cooling system or replacing aging components, this ECS Silicone Radiator Coolant Hose Set is the ultimate upgrade. Designed for durability, performance, and a factory-perfect fit, these premium silicone hoses outperform standard rubber in every way.

Why Choose Silicone Over Rubber?

Made from heavy-duty, reinforced 4-ply fluorosilicone, ECS hoses withstand extreme temperatures and pressures far beyond OEM rubber hoses. Engineered to resist oil, fuel, and electrochemical degradation, these hoses are tested for continuous operation at 250°F and over 45 psi, delivering superior reliability, reduced turbulence, and improved coolant flow.

Key Benefits:

Direct OE Fitment – Perfectly molded to factory specifications for seamless installation on your S65-equipped E9X M3.
Enhanced Durability – Heat-resistant silicone prevents cracking, swelling, and deterioration over time.
Superior Cooling Performance – Smoother internal passageways improve coolant flow and system efficiency.
Pre-installed Quick-Connect Fittings – Hassle-free installation with OEM-style connectors.
Premium Hardware Included – Comes with German-style stainless steel worm-drive hose clamps for a secure fit.

Kit Includes:

Upper Radiator Hose
Lower Radiator Hose
Pre-Installed Factory "Quick-Connect" Flanges (4)
Stainless Steel Worm-Drive Hose Clamps (4)

Replaces OEM Part Numbers: 11537838214 & 11537840661.

Prop 65 Warning

Cross Reference

11537838214
11537840661

Product Q&A

Lifetime Replacement

This Product Is Covered By Our Lifetime Replacement Program

Products protected by our Lifetime Replacement Program are covered for as long as you own the product, no need to worry about an expiration date. Purchase your products and enjoy some worry-free motoring, knowing we've got you covered.

If you have any questions, would like to learn more or are ready to place a replacement claim, click here!

Fits These Cars

MAKE	MODEL	SUBMODEL	ENGINE	Special Fitment Notes
BMW	E90	M3	S65 4.0L	Use vehicle selector to confirm fitment
BMW	E92	M3	S65 4.0L	Use vehicle selector to confirm fitment
BMW	E93	M3	S65 4.0L	Use vehicle selector to confirm fitment

*The above product applications have been written by Turner Motorsport. All warranties, product application, fitment, and performance are the responsibility of Turner Motorsport. For additional information see the terms of use.