Overview
The Crown Automotive 3184086K is an oil pump repair kit for 304-401 V8 engines, part number 3184086K with UPC 848399027693. The kit includes a gear, shaft, plunger, spring and gasket.
It fits older SJ, CJ, Commando and J-series models plus the Grand Wagoneer. Check the kit contents against your old pump parts before assembly, and compare dimensions before fitting.
Key features
- Repair kit for 304-401 V8 engines
- Gear, shaft, plunger, spring and gasket included
- Fitment list centers on SJ, CJ and J-series models
- Crown Automotive part number 3184086K
Rebuilding versus replacing a pump
A repair kit makes sense when the pump body and cover are still flat and free of deep grooves, and the worn parts are the gear, shaft or plunger. Symptoms of a worn pump include low oil pressure, a ticking or knocking noise from the bottom end, and a pressure gauge that drops once the engine is hot. Before buying a kit, check whether the housing is cracked or badly scored, because those faults cannot be repaired with new internal parts.
Rebuilding a pump takes care. Clearances between the gears and the housing must be right, and the pressure relief spring and plunger should move freely. A weak relief spring can cause low pressure even when the gears are new, so inspect it along with the rest of the kit before assembly.
Specifications
| Brand | Crown Automotive |
|---|---|
| Part number | 3184086K |
| UPC | 848399027693 |
| Type | Oil pump repair kit |
| Engine | 304-401 V8 |
| Included | Gear, shaft, plunger, spring and gasket |
Vehicle fitment
It fits 1974–1983 Jeep Cherokee (SJ), 1971–1981 Jeep CJ5, 1971–1975 Jeep CJ6, 1976–1981 Jeep CJ7, 1972–1973 Jeep Commando, 1984–1991 Jeep Grand Wagoneer (SJ), 1971–1973 Jeep J-100, J-2500, J-2600, J-4500, J-4600, J-4700 and J-4800, 1971 Jeep J-3800, 1974–1988 Jeep J10 and J20, and 1972–1983 Jeep Wagoneer (SJ).
Wrangler, Cherokee (XJ) and Grand Cherokee (ZJ) models are not on this list. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
A pump rebuild depends on precise internal clearances, so have an experienced mechanic fit the gear and check the parts against your existing pump before assembly.
What’s included
Gear, shaft, plunger, spring and gasket, as listed.
