Description
MAHLE Motorsports POWER PAK Cast Performance Pistons – 12 VALVE CUMMINS
Performance Cast
Designed for street/strip or pulling trucks making 400-1000HP that still get used as a daily driver or work truck.
Machined from OE castings (retaining the steel top ring insert), giving the same drivability and longevity of an OE piston with additional strength through industry leading design technology.
- Performance bowls with design features intended to reduce erosion issues caused by high pressure, long duration, advanced injection timing.
- Lower compression ratio (.5 to 1.5 points) allowing more flexibility for high output tuning.
- Fully radiused valve pockets where applicable to reduce stress and fatigue cracking.
- MAHLE’s proprietary Grafal® skirt coating for reduced drag and increased scuff resistance.
- Rings, pins and clips included
- CUMMINS 5.9L B-Series Cast Performance Pistons –
- Early 12V and marine-style bowl
- Short pin design
- Coated skirt
- Ring Set (S42170) Included
- Set of 6 Pistons
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 Motorsports POWER PAK Cast Performance Pistons – 12 VALVE CUMMINS Performance Cast Designed for street/strip or pulling trucks making 400-1000HP that still get used as a daily driver or work truck.
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.
