Product Description
Interstate-McBee M-3804990 Piston Ring Set (STD) – 98.5–02 5.9L Cummins 24V
OE-style standard-bore piston ring set for the 1998.5–2002 5.9L Cummins 24-valve (ISB). Built to OEM-equivalent specs for long service life, proper sealing, and restored compression. Sold per cylinder—order 6 sets for a complete engine.
- Direct replacement: Matches OEM reference Cummins 3804990 for 98.5–02 ISB applications.
- Standard bore (STD): Ideal for stock cylinders; select oversize rings if your block is overbored.
- Complete ring pack, per cylinder: Top, second, and oil control rings for one piston.
- Aftermarket value: Interstate-McBee quality at a cost well below OEM boxed parts.
Specifications
| Brand | Interstate-McBee |
|---|---|
| Part Number | M-3804990 |
| OEM Cross-Reference | Cummins 3804990 |
| Bore Size | Standard (STD) |
| Sold As | Per cylinder (one set per piston) |
| Engine | Cummins 5.9L ISB 24-valve |
| Years | 1998.5–2002 |
What’s Included
- (1) Cylinder ring pack: top ring, second ring, oil control assembly.
Vehicle Fitment
Always verify by engine serial number (ESN) if possible.
- Dodge Ram 2500/3500 — 1998.5–2002 with 5.9L Cummins 24V ISB.
Note: Earlier 12-valve years may use different ring sets; confirm part number before ordering.
Installation Tips
- Measure and set ring end-gap to spec; check ring side clearance in the piston grooves.
- Observe ring orientation and stagger end gaps per the service manual.
- Hone the cylinder properly for ring seating; clean bores thoroughly before assembly.
- Use manufacturer torque specs and recommended break-in procedure.
Warranty
New Interstate-McBee engine parts typically carry a 24-month warranty from date of installation under normal use (valvetrain exceptions may apply). Check the current Interstate-McBee policy or contact us for details.
Why Buy From CPP Diesel
- ESN-verified fitment support and real diesel techs on staff.
- Fast shipping and hassle-free returns.
- Deep B-Series inventory to complete your rebuild.
FAQ
Will this fit my 1999 or 2001 Dodge Ram 5.9L?Yes—this M-3804990 ring set is listed for 1998.5–2002 5.9L Cummins 24V ISB engines. Verify by ESN for edge cases.
Is this a full engine set?
No—this is sold per cylinder. You’ll need 6 sets for a complete engine refresh.
Does this replace OEM Cummins 3804990?
Yes—it’s the Interstate-McBee aftermarket equivalent to the OEM reference 3804990.
What if my block is overbored?
Order the correct oversize ring sets (e.g., +0.50 mm / +0.020"). This STD set is for untouched factory bore.
Product Videos
Custom Field
YEAR 1998.5-2002
MAKE DODGE
ENGINE 5.9L
