Product Description
Cummins 4031484 — Turbocharger Repair (Rebuild) Kit for HE341 / HE351CW / HY35W
MPN: 4031484 | Also Known As: turbo rebuild kit, turbocharger repair kit | Holset Ref: 4031484H | Used primarily on: Cummins B-series applications
Why This Part
- ✓ Genuine Cummins/Holset service kit engineered for B-series turbos.
- ✓ Targets HE341/HE351CW/HY35W units found on 5.9L Cummins (see fitment).
- ✓ Restores bearing & seal integrity to reduce shaft play and oil leaks.
- ✓ OE materials for durability and balanced turbo performance.
Quick Specs
| Type | Turbocharger repair/rebuild kit |
|---|---|
| OE Part # | 4031484 (Holset 4031484H) |
| Typical Contents | Journal bearings, thrust bearing/washer, seal rings, snap rings, o-rings & small hardware (contents may vary by kit revision) |
| Compatibility Focus | Holset HE341, HE351CW, HY35W on Cummins B-series |
Verified Fitment (Automotive)
| Year Range | Engine / Turbo | Chassis |
|---|---|---|
| 2003–2004.5 | 5.9L ISB (HE341) | Ram 2500/3500 |
| 2004.5–2007 | 5.9L ISB (HE351CW) | Ram 2500/3500 |
Compatibility Notes: Also used with HY35W on certain earlier 5.9L applications; not for HE351VE/VGT (6.7L). Always verify by VIN/ESN and turbo tag.
Often Paired With
- Turbo oil drain gasket: Cummins 5264568
- Fresh engine oil & filter after turbo service
- New v-band clamp(s) & hardware as required
What’s In The Box
- (1) Genuine Cummins/Holset Turbocharger Repair Kit (4031484)
- Contents vary by kit revision; instructions per Cummins/Holset
Install Tips
- Mark compressor/turbine orientation before disassembly; maintain balance relationships.
- Inspect shaft & wheels for wear/damage; replace if out of spec.
- Use clean, lint-free assembly practices; pre-lube bearings & seals.
- Follow Cummins/Holset procedures; verify no contact or oil leaks on startup.
FAQ
WHAT TURBOS DOES 4031484 SERVICE?Primarily Holset HE341, HE351CW, and HY35W used on Cummins B-series. Not for HE351VE/VGT.
WILL THIS FIT MY 2003–2007 5.9L CUMMINS RAM?Yes—these trucks use HE341 (’03–’04.5) or HE351CW (’04.5–’07), both supported by this kit. Verify turbo tag to confirm.
WHAT’S INCLUDED IN THE KIT?Typical OE kit contents include journal bearings, thrust components, seal rings, snap rings, and o-rings. Exact contents can vary by revision.
DOES THIS WORK WITH HE351VE (6.7L) VGT TURBOS?No—HE351VE/VGT units use different components. This kit targets HE341/HE351CW/HY35W.
IS THIS A GENUINE CUMMINS/HOLSET KIT?Yes—Cummins 4031484 / Holset 4031484H genuine service kit.
