Product Description
CUMMINS 3802234 OEM PISTON RING SET (.040 OVER, 1.00MM) – RAM 5.9L (2003–2007)
The genuine CUMMINS 3802234 OEM piston ring set (.040 over, 1.00mm) is engineered for premium sealing and durability in high-mileage or fully rebuilt 2003–2007 5.9L Cummins ISB engines. These rings restore proper compression, oil control, and thermal stability—critical for performance, towing, and long-term reliability. Whether you're completing a full overhaul or repairing a worn cylinder set, these factory-spec rings deliver precision-machined accuracy and the correct metallurgy for OEM service life.
This oversize ring set is designed to fit cylinders bored .040” oversize and is matched to Cummins service pistons requiring 1.00mm ring thickness. For best results, pair your installation with OE-grade components such as Cummins pistons, rod bearings, and a proper hone pattern meeting Cummins specifications.
Key Features
- Genuine Cummins OEM ring set – correct metallurgy and heat-treating.
- .040” oversize (1.00mm) design for properly machined cylinders.
- Factory-matched compression and oil control rings for correct sealing and durability.
- Suitable for stock or performance-tuned 5.9L Cummins ISB engines.
- Ideal for full rebuilds or correction of worn/slapped pistons.
Fitment Details
This Cummins OEM piston ring set fits the following engine applications:
- Engine: 5.9L Cummins ISB (24-valve, Common Rail)
- Years: 2003–2007
- Vehicles: Dodge Ram 2500 & 3500 with 5.9L Cummins
- Oversize Specification: .040” over (1.00mm)
Verify piston diameter and oversize requirements before ordering.
Cross-Reference & Related Cummins Parts
CPP Diesel carries additional genuine Cummins components commonly installed with piston ring sets:
- CUMMINS 3957912 OEM PISTON – 5.9L COMMON RAIL
- CUMMINS 4891178 CONNECTING ROD BEARING SET – STANDARD
- CUMMINS 3804896 OEM MAIN BEARING SET – STANDARD
- VIEW MORE GENUINE CUMMINS PARTS
This ring set is commonly referenced with service components including 3802233, 3802235 (other oversizes), depending on cylinder machining requirements.
Installation Notes
- Ensure all cylinders are properly bored & honed to Cummins specifications.
- Check end gap, side clearance, and orientation during installation.
- Use correct lubrication during assembly and perform proper break-in.
Specifications for cummins 3802234
| Attribute | Value |
|---|---|
| Brand | Cummins (Genuine OEM) |
| Cummins Part Number | 3802234 |
| Oversize | .040” Over (1.00mm) |
| Engine Compatibility | 5.9L Cummins ISB (2003–2007) |
| Vehicle Fitment | Ram 2500 / 3500 – 5.9L Cummins (2003–2007) |
| UPC | 735551002234 |
| GTIN | 735551002234 |
| Cross Reference | 3802233 (other oversize), 3802235 (oversize), verify by ESN |
| E-Codes / Emissions | Engine-internal component; not emissions-controlled |
| Shipping Weight | Approx. 1.2 lb |
| Shipping Method | Standard ground or expedited options from CPP Diesel |
| Prop 65 Warning | WARNING: May contain materials known to cause cancer or reproductive harm. See www.P65Warnings.ca.gov. |
Frequently Asked Questions
IS THIS THE CORRECT RING SET FOR MY 2003–2007 5.9L CUMMINS?
Yes — if your pistons require .040” over (1.00mm) rings. Always verify oversize based on machine shop measurements or piston markings.
DO THESE RINGS FIT STANDARD-BORE PISTONS?
No. This set is for cylinders bored .040” over. For standard size, use the appropriate Cummins standard ring set.
SHOULD I REPLACE PISTONS WHEN INSTALLING OVERSIZED RINGS?
Yes. Pistons and rings must match oversize. Use Cummins oversize pistons when cylinders require .040” over.
CAN THESE BE USED IN PERFORMANCE OR TOWING BUILDS?
Yes. Genuine Cummins rings provide excellent sealing and durability for tuned or heavy-duty applications.
ARE THESE GENUINE CUMMINS RINGS?
Yes — CPP Diesel supplies only authentic Cummins OEM components for maximum reliability.
