Product Description
Genuine Cummins
Cummins 3905351 — Fuel Return Line Grommet Seal
MPN: 3905351 | Also Known As: fuel line rubber grommet, return line tee grommet | Quantity Required: 3 per vehicle (sold individually)
Why This Part
- ✓ OE sealing for the VP44-era return line “T” fitting to stop seep/leaks.
- ✓ Direct-fit for 1998.5–2002 Ram 5.9L 24V applications.
- ✓ Fuel-resistant elastomer design for durability.
- ✓ Replace all three during service for consistent seal life.
OE Fit Stock Replacement 3 Per Truck
Quick Specs
| Type | Fuel return line grommet seal (tee fitting) |
|---|---|
| OE Part # | 3905351 |
| Position | Return line “T” junction (VP44 return circuit) |
| Qty Required | 3 per vehicle (sold individually) |
Verified Fitment (Automotive)
| Year Range | Engine | Chassis |
|---|---|---|
| 1998.5–2002 | Ram 5.9L ISB 24V (VP44) | Ram 2500/3500 |
Notes: Designed specifically for VP44-era 24-valve trucks. Always verify by VIN/ESN if components have been changed.
Often Paired With
- Fuel Return Line Tee Fitting: Cummins 3905353 (’98.5–’02 5.9L 24V)
- Fuel Return Line (VP44 → Tee): Cummins 3945707
- Fuel Return Line (Tee → Quick Connect): Cummins 3942592
- New sealing washers if banjo fittings are disturbed
What’s In The Box
- (1) Genuine Cummins Fuel Line Grommet Seal (3905351)
- Additional grommets/lines sold separately (see “Often Paired With”).
Install Tips
- Lightly lubricate with clean diesel or engine oil, then seat fully.
- Replace all three grommets to maintain equal clamping/seal.
- Inspect the tee fitting for hairline cracks; replace if damaged.
- Cycle key to prime and check for leaks before road test.
FAQ
WILL THIS FIT MY 1998.5–2002 5.9L 24V CUMMINS RAM?Yes—designed for VP44-equipped 24-valve trucks (Ram 2500/3500, 1998.5–2002).
HOW MANY GROMMETS DO I NEED?Three per vehicle—replace all three at the same time for best results.
IS THIS THE SEAL FOR THE RETURN LINE “T” FITTING?Yes—this grommet seals the tee junction in the return line circuit on VP44 trucks.
IS THIS A GENUINE CUMMINS PART?Yes—OE Cummins 3905351 for proper fit and sealing performance.
DOES THIS FIT 12-VALVE (1994–1998) ENGINES?No—this listing is specific to 24-valve VP44 trucks. 12-valve applications use different seals.
Product Videos
Custom Field
Vehicle Year 1998.5-2002
Vehicle Make DODGE
ENGINE 5.9L CUMMINS
