Description
3″ to T4 Twin Scroll Divided Inlet Turbo Adapter Flange Plate
for Dual Volute S400 Series Dodge Cummins
This is an adapter flange designed to weld a 3″ O.D. exhaust pipe to a T4 divided port turbo.
Smooth port transition machined to gasket opening for maximum flow
Bolt centre spacing is 3.25″ x 2.75″ for T4 M10 tapped holes
1/2″ Thick (will not warp from heat)
Face milled for proper sealing
Made from A36 Steel (Not Cast) for optimal strength
These exhaust flanges are CNC machined for high quality and accurate assembly.
Made in the USA
Shipped Australia-Wide
- Dispatched from within Australia with tracking.
- Same-day dispatch on in-stock orders placed before 11am AEST, Monday–Friday.
- Shipping is calculated at checkout based on size, weight and your delivery address.
- Estimated delivery 2–7 business days depending on your location.
Freight question? Call us on (07) 5619 7869.
3″ to T4 Twin Scroll Divided Inlet Turbo Adapter Flange Plate for Dual Volute S400 Series Dodge Cummins This is an adapter flange designed to weld a 3″ O.D. exhaust pipe to a T4 divided port turbo.
Double Duty Diesel — Manufacturer Pass-Through Warranty
Double Duty Diesel parts carry the original manufacturer's warranty:
- Fluidampr — Lifetime warranty on harmonic balancers
- MAHLE / Clevite — 12 months on bearings, gaskets, sealing components
- Dynomite Diesel — 12 months on stock-spec injectors and pumps; performance/race spec varies
- Power Driven Diesel — 12 months on turbos and bundled tuning kits
- Returns must be notified within 30 days of delivery
- Parts only — installation not covered
Workshop fitment available at Willys for transmissions, injectors and engine internals.
Read the full Double Duty Diesel warranty terms →
Warranty claims are coordinated through Willys Workshop. Email sales@willysworkshop.com.au or call Warana (07) 5619 7869 / Oxley (07) 3377 3421 with your order number and a description of the issue.
