Manufacturer reference photos may show other components. Your order includes the sale unit described here.
CP Pistons · New
CP Pistons GM Duramax 6.6L 4.075 Bore 3.8976 Stk 6.418 Rod 1.946 CH -38.5cc Dome Pistons (Set of 8)
MPN DR7021 · Store SKU cppDR7021
Sold as one set of 8.
Supplier stock checked 11/8/2026, 6:16:11 AM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
CP Pistons GM Duramax 6.6L 4.075 Bore 3.8976 Stk 6.418 Rod 1.946 CH -38.5cc Dome Pistons (Set of 8)
Manufacturer fitment & guides
Check DR7021 against the manufacturer’s application information below.
A manufacturer application guide is not available for this listing. Request the exact application from JuiceBuilt before payment.
Part-specific notes
- Not CARB approved. Destination and intended-use restrictions must be checked before sale.
- Emissions acknowledgement required before purchase.