Product Description
Cummins 3919864 — Short Intake Horn Mounting Bolt (Hex Flange Head Cap Screw)
MPN: 3919864 | Also Known As: intake horn bolt, intake plenum bolt, hex flange head cap screw
Why This Part
- ✓ OE hardware for the intake horn/plenum on 5.9L 12-valve applications.
- ✓ Direct-fit fastener for factory alignment and clamp load.
- ✓ Durable OEM finish to resist corrosion and vibration loosening.
- ✓ Ideal when replacing gaskets, manifolds, or missing/damaged hardware.
Quick Specs
| Type | Hex Flange Head Cap Screw (short) — Intake Horn Mounting Bolt |
|---|---|
| OE Part # | 3919864 |
| Position | Intake horn/plenum to manifold (short bolt location) |
| Qty Required | Varies by intake horn; sold individually |
Verified Fitment (Automotive)
| Year Range | Engine | Chassis |
|---|---|---|
| 1994–1998 | Ram 5.9L 12V (6BT) | Ram 2500/3500 |
Compatibility Notes: Often paired with the long intake horn bolt (Cummins 3923216). Some 1998.5–2002 24V applications use 3919864 as the short bolt in mixed hardware sets—verify by VIN/ESN and horn style before ordering.
Often Paired With
- Long Intake Horn Bolt: Cummins 3923216
- Intake Horn / Heater Grid Gaskets: common refs include 3969988 (graphite style)
What’s In The Box
- (1) Genuine Cummins Short Intake Horn Bolt (3919864)
- Gaskets/other bolts sold separately (see “Often Paired With”).
Install Tips
- Clean mating surfaces and threads; replace gaskets when removed.
- Hand-start all bolts to align the horn, then torque to factory spec in sequence.
- Recheck torque after initial heat cycle if the horn or manifold was replaced.
FAQ
IS 3919864 THE “SHORT” INTAKE HORN BOLT?Yes—3919864 is the short hex-flange bolt used on the intake horn/plenum. The long companion bolt is typically Cummins 3923216.
WILL THIS FIT MY 1994–1998 5.9L 12V RAM?Yes—this OE bolt is used on 1994–1998 5.9L 12-valve Ram 2500/3500 intake horns. Always confirm by VIN/ESN or hardware layout.
DO 1998.5–2002 24V TRUCKS USE THIS BOLT?Some 24V sets use 3919864 for the short positions alongside different long bolts—verify by VIN/ESN and horn design before ordering.
IS THIS A GENUINE CUMMINS FASTENER?Yes—OE Cummins 3919864 with the correct flange head and finish for proper clamp load.
HOW MANY DO I NEED?Quantity depends on your intake horn and bracket configuration. Check your vehicle and order the number of short bolts required.
