Product Description
Restore factory-tight sealing on your VP44 24-valve build with INDUSTRIAL INJECTION PDM-3354.020 stock pistons for the 1998.5–2002 5.9L Cummins. This .020" over set is built for OEM-style reliability and longevity, ideal for clean daily drivers and fresh performance foundations.
Fitment
- 1998.5–2002 Dodge Ram 5.9L Cummins 24-valve (ISB, VP44)
- Standard-output 24V engines (verify by ESN/CPL)
What’s Included
- (6) Pistons — .020" oversize
- Rings, pins, and clips (per Industrial Injection kit contents)
Why These Pistons
- .020" over to clean up minor bore wear and restore compression
- Stock-style crown and ring pack for OEM drivability and durability
- Direct replacement for late-1998.5–2002 24V ISB applications
Recommended Parts (CPP internal links)
- ARP 247-4202 Head Stud Kit (98.5–02 5.9L) — proven clamping for long-term sealing
- MAHLE HS54174-1 Head Gasket Set (98.5–02) — top-end gaskets for 24V service
- MAHLE S42221.020 Piston Ring Set — extra ring packs if needed
- Cummins 3800784 OEM .020 Piston Kit (Alt. per-cyl option)
- Shop All 98.5–02 5.9L Cummins Engine Parts
Helpful Notes
- Professional machine work required: confirm piston-to-wall clearance and ring end gaps.
- Verify ESN/CPL and standard-output vs. HO where applicable; match head gasket thickness to deck/RA.
FAQ
Will .020" over change compression or drivability?No meaningful change when paired with stock-style pistons and correct head gasket thickness. Expect OEM-like manners with fresh sealing.
Do these include rings?Yes, the kit is supplied with rings, pins, and clips; additional ring sets are linked above if spares are desired.
Are these right for towing builds?Yes—ideal for stock and mild performance/towing when the bores need a light cleanup and you want reliable, factory-style operation.
Do I need head studs?Head studs aren’t mandatory for stock power but are smart insurance for heavy towing, tuning, or elevated cylinder pressure.
