Product Description
Interstate-McBee M-3802234 Piston Ring Set – .040" Oversize (89–07 5.9L Cummins)
Piston ring set for the 1989–2007 5.9L Cummins B-Series (12V & 24V) engines, .040" oversize (≈1.00 mm). Designed as an OE-style replacement for dependable sealing, oil control, and long service life. Sold per cylinder (one piston)—order a quantity of 6 for a complete engine.
- .040" oversize: For engines that have been bored/honed .040" over standard.
- OE-style materials: Built to match factory form, fit, and function.
- Balanced ring pack: Compression and oil control rings engineered for street, towing, and work use.
- Aftermarket value: Interstate-McBee quality without the OEM price tag.
Specifications
| Brand | Interstate-McBee |
| Part Number | M-3802234 |
| Application | 5.9L Cummins B-Series (12-valve & 24-valve) |
| Years | 1989–2007 |
| Size | .040" oversize (≈1.00 mm) |
| Sold As | Set for one piston (one cylinder) |
| Engine Qty | Order 6 sets for a complete 6-cylinder engine |
What’s Included
- (1) Complete ring pack for one piston:
- Compression rings (upper & second)
- Oil control ring assembly
Vehicle Fitment
Always confirm by engine serial number (ESN) and bore size after machining.
- Dodge Ram 2500/3500 with 5.9L Cummins (12V 1989–1998; 24V 1998.5–2007)
- Other 5.9L B-Series applications calling for .040" oversize rings
Install Notes
- Verify cylinder bore size and finish; .040" rings require a .040" overbore.
- Measure ring end gap in-cylinder and file to spec if required; follow the Cummins service manual.
- Observe ring orientation marks and recommended clocking positions.
- Use proper lubrication and a quality ring compressor during installation.
Recommended/Related Parts
- Pistons matched to .040" oversize
- Head gasket set and head bolts/studs
- Main/rod bearings and full gasket set (if overhauling)
FAQ
Is M-3802234 sold per cylinder or per engine?
Sold per cylinder (one piston). For a full 6-cylinder 5.9L, order a quantity of 6.
Will .040" rings work in a standard bore?
No. .040" oversize rings are for cylinders bored/honed .040" over standard. Verify bore size before ordering.
Does this fit both 12-valve and 24-valve 5.9L Cummins?
Yes—this listing covers 1989–2007 5.9L applications that specify this ring set and size. Confirm by ESN and piston/ring spec.
