Black Market Parts (BMP) BMW Billet Aluminium Coolant Flange/Outlet Upgrade - E90 F30 F80 F02 (N54/N55/N20) - Fits 325i 335i 535i 740i M2 M3 M4 135i 640i - Anodised 6061, Viton O-Ring, Stainless Clamp

BMW Water Outlet Housing Upgrade - CNC 6061 Alloy Replacement For E9x F3x F8x F0x Platforms

Eliminate coolant seepage and cracked plastic fittings with this heavy-duty aluminium water neck from Black Market Parts. Precision CNC-machined from 6061 alloy with a black anodised finish, this reinforced radiator hose outlet replaces the failure-prone OE plastic connector on a wide range of BMW models running N54, N55, N20 and selected N52 engines. If you are chasing a reliable coolant pipe adapter, thermostat outlet, water outlet housing or radiator hose connector for high-mileage or tuned cars, this is the proven fix.

We run this part on our own cars and have installed it for numerous customers. Feedback is consistently positive - tight seal, tidy fit, zero drips. It is a simple, preventative upgrade that saves engines and wallets by stopping leaks before they start.

Highlights

• Replaces the brittle factory coolant housing that often warps, splits or rounds off
• CNC 6061-T6 aluminium body with corrosion resistant black anodising
• FKM Viton sealing ring for heat and chemical resistance with long service life
• Stainless steel worm-drive clamp included - no rust, consistent clamping force
• Zero plastic construction for stability under boost and high under-bonnet temperatures
• Compatible with BMW blue coolant and all common ethylene glycol blends
• Direct fit - OE-style replacement using factory pipe routing and hose geometry
• Made in the USA from domestic and imported components

Who is this for

Ideal for N54 and N55 twin turbo and single turbo six-cylinder applications, N20 four-cylinder cars and selected N52 vehicles across E8x, E9x, F2x, F3x, F10, F01-F02, E70-E71, F15-F16 and E89 platforms. Perfect while doing a cooling system refresh, water pump service, radiator swap or as a preemptive upgrade on daily-driven and performance builds.

Technical data

• Material: 6061 aluminium
• Finish: Black anodised
• Seal: Viton FKM O-ring
• Clamp: Stainless steel
• Approx. weight: 90 g
• Part number: 601-0003

Fitment - chassis and models

Fitting and support

Professional installation available at MJ Modifications in Warwickshire. Request a fitting quote at info@mjmodifications.co.uk.

Compatibility check

We will verify fitment before dispatch. Add your UK registration or the last 7 digits of your VIN at checkout so we can confirm compatibility.

Brand

Manufacturer: Black Market Parts - BMP

Search terms to help you find it

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