Product Description
Cummins 3800487 — Lower Engine Gasket Kit (Bottom End), ISB 5.9L
MPN: 3800487 | Also Known As: lower end gasket kit, bottom end gasket set | Cross-Refs (ID only): 3800833, 3802980
Why This Part
- ✓ Complete OE lower-end sealing for VP44-era ISB 5.9L (’98.5–’02).
- ✓ Direct-fit kit with the correct gaskets, O-rings, and seals for the bottom end.
- ✓ Includes multi-piece oil pan gasket and front/rear crank seals with sleeves.
- ✓ Cummins quality materials for reliable, leak-free reassembly.
Quick Specs
| Type | Lower engine gasket kit (bottom end) |
|---|---|
| OE Part # | 3800487 |
| Typical Contents | Oil pan gasket, gear housing/rear cover gaskets, oil cooler core & filter head gaskets, pushrod cover gasket, piston cooling nozzle seals, front & rear crank seals with install sleeves, assorted O-rings & washers (contents vary by ESN) |
| Qty Required | 1 per engine (kit) |
Verified Fitment (Automotive)
| Year Range | Engine | Chassis |
|---|---|---|
| 1998.5–2002 | Ram 5.9L ISB (24V, VP44) | Ram 2500/3500 |
Industrial/Off-Highway: Used on non-certified ISB/QSB 5.9 variants; always confirm by ESN. Not for 2003+ common-rail applications.
Often Paired With
- Upper Engine Gasket Kit: Cummins 4090035 (’98.5–’02)
- Engine Oil Pan: Cummins 4089093 (’94–’02)
- Fresh oil & filter after reassembly; clean mating surfaces thoroughly
What’s In The Box
- (1) Genuine Cummins Lower Engine Gasket Kit (3800487)
- Kit contents vary by ESN; see “Quick Specs” for typical components
Install Tips
- Verify ESN/VIN to match the correct kit revision.
- Degrease and inspect all sealing surfaces; follow Cummins torque specs and sequences.
- Use the included sleeves/tools for crank seals; recheck for leaks after first heat cycle.
FAQ
WILL THIS FIT MY 1998.5–2002 5.9L CUMMINS RAM?Yes—this is the OE lower end gasket kit for VP44-era 5.9L ISB (’98.5–’02) Ram 2500/3500. Confirm by VIN/ESN for best results.
WHAT DOES THIS KIT INCLUDE?It’s a comprehensive bottom-end kit: oil pan gasket, gear housing/rear cover gaskets, oil cooler core & filter head gaskets, pushrod cover gasket, piston cooling nozzle seals, plus front & rear crank seals with installation sleeves, and assorted O-rings/washers (contents can vary by ESN).
IS THIS A GENUINE CUMMINS KIT?Yes—OE Cummins 3800487 built to factory material specs for long-term sealing.
WHAT IF I’M REBUILDING A 2003+ COMMON-RAIL 5.9L?This kit targets VP44 trucks. For 2003+ CR engines, use the appropriate CR-specific lower kit—contact us with your ESN.
DO I ALSO NEED THE UPPER ENGINE GASKET KIT?If you’ve opened the head or top-end, pair this with Upper Kit 4090035 for a full seal refresh.
