Will it fit your vehicle?
This part is listed to suit:
- MakeChev / GMC
- ModelSilverado
Fitment listings are a guide. For a guaranteed match, send us your rego or VIN and our team will confirm the exact part before you pay.
MAHLE | Valve Cover Gasket & Injector Seal Kit – 01-04 Duramax LB7 6.6L
$230.00
In stock — order before 11am AEST for same-day shipping
The Valve Cover Gasket & Injector Seal Kit provides your Duramax with a factory performance and replaces tired and damaged gaskets.
Secure checkout — Square · PayPal · Apple Pay · Google Pay
Willys Workshop · Oxley & Warana, QLD
Easy returns within 14 days
12 Month Warranty
Tuning & Fitment Available
Fast AU-Wide Shipping
Easy returns within 14 days
12 month warranty
Description
This rocker-cover gasket seals the cam cover to the head on the Duramax and stops oil weep. Sourced through Willys Workshop’s Double Duty Diesel dealer network – genuine and performance diesel hard parts for Cummins and built-engine applications. Part reference gs33757.
Listed to suit the Duramax – confirm against your engine and build before ordering; our diesel team can verify the right part. Shipped Australia-wide or fitted in-store at our Oxley (Brisbane) and Warana (Sunshine Coast) workshops.
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 | Valve Cover Gasket & Injector Seal Kit – 01-04 Duramax LB7 6.6L This MAHLE Valve Cover Gasket & Injector Seal Kit is an OEM replacement gasket kit for your 2001-2004 GM 6.6L Duramax LB7.
Additional information
| Weight | 1.5 kg |
|---|---|
| Dimensions | 25 × 20 × 12 cm |
| Make | Chev / GMC |
| Model | Silverado |
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
