Description
Power Driven Diesel | Head Bolt Kit (89-98 12 Valve Cummins)
Power Driven Diesel head bolts are a great economical option for mild to moderate builds.
Power Driven Diesel Head Bolts are class 12.9 fasteners with a special coating to enhance appearance and prevent corrosion.
Additionally, a custom-designed washer properly supports the bolt head and distributes the clamp load into the head for maximum reliability.
Power Driven Diesel Head Bolts do not require milling of the rocker towers.
They are approximately 25% stronger than stock head bolts, and we recommend them up to 550 horsepower on single-turbo applications.
Installation requires a M10 hex socket.
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.
Power Driven Diesel | Head Bolt Kit (89-98 12 Valve Cummins) Power Driven Diesel head bolts are a great economical option for mild to moderate builds. Power Driven Diesel Head Bolts are class 12.9 fasteners with a special coating to enhance appearance and prevent corrosion.
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.
