This Clevite MAHLE Original Diesel piston ring kit is for the Dodge Cummins 5.9L and covers a single cylinder. The rings are ductile iron with a ceramic chrome finish, sized for a 4.036 inch bore, with a drop-in design and standard tension.
Specifications:
- Type: Piston rings, MAHLE Original Diesel, drop-in
- Bore: 4.036 in (.020 in over 4.016 in)
- Ring size: 3.0 x 2.38 x 4.0 mm
- Tension: standard
- Material: ductile iron
- Coating: ceramic chrome
- Coverage: 1 cylinder
- Sold as: kit
- Engine: Dodge Cummins 5.9L diesel I6
- Part number: S42170020
Engine Application: Dodge Cummins 5.9L diesel I6.
FAQ
What engine does the Clevite S42170020 ring kit fit?
It is listed for the Dodge Cummins 5.9L diesel with a 4.036 inch bore.
How many kits do I need?
Each kit covers one cylinder. The Cummins 5.9L is an inline-6, so six kits are needed to ring a complete engine.
What does the 020 in S42170020 mean?
The 4.036 inch bore is 0.020 inch larger than the 4.016 inch bore of the standard listing S42170, so this is the .020 inch oversize ring kit.

