Description
MAHLE | Cummins 6BT 5.9L 12 Valve & 4BT 3.9L Oil Cooler Gasket Set
Select the correct oil cooler gasket set to suit your application: Early 89-97 Block with 1 turbo oil drain return and 14mm mains or Late 98+ STORM Block with 3 side freeze plugs
MAHLE Original® gaskets provide world class sealing products trusted by OEMs & Technicians around the globe.
MAHLE Head Gaskets give you original equipment form, fit, and function, so they fit just like the original!
Double Duty Diesel is a dealer of MAHLE and is your online source for diesel stock replacement parts. Call us if you need any stock or performance parts for your Cummins Diesel.
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.
MAHLE | Cummins 6BT 5.9L 12 Valve & 4BT 3.9L Oil Cooler Gasket Set Select the correct oil cooler gasket set to suit your application: Early 89-97 Block with 1 turbo oil drain return and 14mm mains or Late 98+ STORM Block with 3 side freeze plugs MAHLE Original® gaskets provide world class sealing products trusted by OEMs & Technicians around the globe.
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.
