Ask a Question

Technical Questions

Can't find an answer in our Help Center? Submit a question, and we'll get back to you soon.

Need Business/Order Related Support?

Search our Help Center
Get answers to business and order questions from our experienced Customer Service representatives.

Website Feedback

How are we doing? We really are interested in knowing how you feel about DX Engineering. Contact us with your comments - good, bad, great, so-so, or whatever. We want to hear from you!

New at Summit Racing: Mahle Diesel PowerPak Pistons

Pistons perfect for daily-driven diesels, yet strong enough for competition-level performance.

Answering the call from diesel owners clamoring for race-spec components, Mahle has stepped up to the plate with its Diesel PowerPak Pistons. The pistons feature bowls that are specifically designed to mitigate piston crown erosion caused by high cylinder pressures and long duration, advanced ignition timing. That makes them ideally suited for performance diesel engines. The pistons are also coated in GRAFAL^® to reduce drag and increase scuff resistance.

There are three piston types in Mahle’s PowerPak diesel line:

Mahle’s Performance Cast diesel pistons are designed for trucks making from 400-1,000 horsepower. They’re strong enough for competition-level pulling rigs, but since the pistons are derived from OE castings, they have daily driver durability.

Additional Features:

* Lower compression ratio (.5 to 1.5 points) allowing more flexibility for high output tuning

* Fully radiused valve pockets to reduce stress and fatigue cracking

* Rings, pins, and clips included

Up the Mahle’s Diesel PowerPak performance chain are its Performance Forged Series pistons. They’re best suited to dedicated drag and pulling trucks. The forgings eliminate the piston’s steel top ring groove to gain strength and a performance edge. The drawback is a reduction in the piston’s service life. Performance Forged pistons are machined from Mahle’s exclusive M142S alloy, which gives them excellent thermal resistance and low expansion characteristics.

Additional Features:

* Available in custom compression ratios

* Fully radiused valve pockets to reduce stress and fatigue cracking

* Hard anodized top ring groove for added durability and increased longevity

Mahle’s Extreme Duty MONOTHERM^® pistons are at the top of the performance heap. Their all-steel construction makes them the ultimate choice for high-performance competition and serious towing duty.

Additional Features:

* Integrated cooling gallery

* Steel ring grooves for unmatched durability and longevity

Diesel PowerPak Pistons are currently available for Dodge 5.9L Cummins and Chevy 6.6L Duramax diesel engines.

Click here to see all Mahle PowerPak Piston and Ring Kits at Summit Racing.