INTERSTATE-MCBEE M-2866337 S400 T6 5.0″ EXHAUST OUTLET GASKET (AFTERMARKET REPLACEMENT)

Product Description

Interstate-McBee M-2866337 — S400 T6 5.0″ Exhaust Outlet Gasket (Aftermarket Replacement)

Replacement exhaust outlet gasket for turbochargers in the BorgWarner S400 family equipped with a T6 turbine housing and a 5.0″ outlet. Designed to seal the joint between the turbine outlet and the downpipe/mating flange. Sold individually.

• Direct replacement: Built to OE form and fit for S400/T6 applications with a 5.0″ outlet.
• Reliable seal: Helps prevent exhaust leaks, soot tracking, and noise at the turbine discharge.
• Service friendly: Ideal for turbo installs, swaps, and routine service where the outlet joint is opened.

What’s Included

• (1) Exhaust outlet gasket, P/N M-2866337

Fitment Guidance

Verify by turbo model and housing casting where possible.

• Compatible with many S400-frame turbos using a T6 turbine inlet and a 5.0″ outlet.
• Not for T4 housings or outlets that use a different diameter or a v-band/marmon joint without a gasket.

Install Notes

• Clean both sealing surfaces; remove old gasket material and soot.
• Test-fit the gasket to confirm alignment of bolt holes and outlet ID.
• Install dry unless the OEM procedure specifies otherwise; avoid RTV or sealants that can contaminate the turbo.
• Torque fasteners per the turbo/downpipe manufacturer’s spec and re-check after heat cycles.

FAQ

How many gaskets do I need?

One gasket per turbine outlet joint. Order one per turbo.

Will this fit a T4 housing?

No. This part targets S400 units with a T6 turbine housing and 5.0″ outlet.

Does this replace a v-band seal?

No. If your outlet uses a v-band/marmon connection without a gasket, this part is not applicable.