Product Description
Cummins 3934303 — Engine Oil Filter Housing / Lubricating Oil Filter Head
MPN: 3934303 | Also Known As: oil filter head, oil filter housing | Related: 3918954 (’94–’98 housing; earlier design)
Why This Part
- ✓ OE housing your spin-on oil filter threads onto for proper sealing and flow.
- ✓ Direct-fit for 1998.5–2002 Ram 5.9L ISB (24V/VP44).
- ✓ Restores factory oil filtration & pressure path after damage or contamination.
- ✓ Durable OE casting—built to Cummins specs.
Quick Specs
| Type | Lubricating Oil Filter Head / Oil Filter Housing |
|---|---|
| OE Part # | 3934303 |
| Qty Required | 1 per engine (sold individually) |
| Interfaces | Oil cooler ↔ filter head; block ↔ cooler (gaskets sold separately) |
Verified Fitment (Automotive)
| Year Range | Engine | Chassis |
|---|---|---|
| 1998.5–2002 | Ram 5.9L ISB 24V (VP44) | Ram 2500/3500 |
Notes: This is the late-2nd-gen housing. Earlier ’94–’98 trucks typically use housing 3918954. Always confirm by VIN/ESN.
Often Paired With
- Oil Cooler Core: Cummins 3957544 (’89–’02 5.9L)
- Gaskets, 1997–2002: 3942915 (cooler→filter head) · 4932124 (cooler→block)
- Fresh oil & filter after installation (flush any debris)
What’s In The Box
- (1) Genuine Cummins Oil Filter Housing / Filter Head (3934303)
- Gaskets & hardware sold separately (see “Often Paired With”).
Install Tips
- Replace sealing gaskets; torque fasteners to factory spec.
- Inspect/flush oil passages if prior component failure occurred.
- Prime system and check for leaks on warm-up.
FAQ
WILL THIS FIT MY 1998.5–2002 5.9L CUMMINS RAM?Yes—this is the OE filter head/housing for late 2nd-gen Ram 2500/3500 with the 24-valve (VP44) 5.9L Cummins. Verify by VIN/ESN.
WHAT GASKETS DO I NEED WHEN SWAPPING THE HOUSING?For ’97–’02 trucks, use 3942915 (cooler→filter head) and 4932124 (cooler→block). Replace gaskets anytime the joint is opened.
IS THIS THE SAME AS THE ’94–’98 HOUSING?No—earlier ’94–’98 applications typically use housing 3918954. This 3934303 unit covers ’98.5–’02.
IS THIS A GENUINE CUMMINS PART?Yes—OE Cummins 3934303 with factory geometry and sealing interfaces.
SHOULD I REPLACE THE OIL COOLER TOO?If contamination or cooler failure was present, replacing the cooler (3957544) and gaskets (3942915/4932124) is recommended.
