Description
6BT Rear Main Oil Seal Suits 4BT & 6BT – 3.9, 4.5, 5.9 & 6.7L Cummins 1989 – 2018
Cummins 6BT Rear Main Crankshaft Oil Seal With Steel Installer – 100% Brand New & High Quality.
P/N 3925529 Suits Cummins 1989 And Up.
6BT Rear Main Oil Seal Suits 4BT & 6BT – 3.9, 4.5, 5.9 & 6.7L Cummins 1989 – 2018
$90.00
In stock — order before 11am AEST for same-day shipping
Double Duty Diesel gasket & seal to suit the 6BT Rear Main Oil Suits 4BT & 6BT – 3.9, 4.5, 5.9 & 6.7L Cummins 1989 – 2018. A precise, durable seal for a reliable, leak-free repair. Shipped Australia-wide from Willys Workshop.
Easy returns within 14 days
12 Month Warranty
Tuning & Fitment Available
Free Shipping
Easy returns within 14 days
12 month warranty
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.
6BT Rear Main Oil Seal Suits 4BT & 6BT – 3.9, 4.5, 5.9 & 6.7L Cummins 1989 – 2018 Cummins 6BT Rear Main Crankshaft Oil Seal With Steel Installer – 100% Brand New & High Quality. P/N 3925529 Suits Cummins 1989 And Up.
Additional information
| Weight | 1.5 kg |
|---|---|
| Dimensions | 25 × 20 × 12 cm |
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.
Questions, or need a fitment check?
Send your rego or VIN and our Australian-based team will manually confirm fitment before you buy.
Prefer to text your rego/VIN? 0485 885 957
