Overview
The Crown Automotive J8134400 is a valve cover grommet for 4.2L engines. It fits the Jeep applications shown under Vehicle fitment.
Crown Automotive makes this grommet as a replacement for Jeep valve covers. Compare the model years carefully against your own vehicle before installing it.
Key features
- Made for 4.2L engines
- Fits Cherokee, CJ, J-Series and Wagoneer models
- Model years run from 81-86 to 84-86
- Crown Automotive part number J8134400
Replacing a worn grommet
A valve cover grommet is a rubber or elastomer seal between the valve cover and the cylinder head. Its job is to keep oil inside the top of the engine while the cover is bolted down. Over time heat, oil exposure and repeated removals can flatten or harden the seal, and a worn grommet can let oil seep along the cover edge.
When replacing one, clean the sealing surface on the cover and head so no old material or debris remains. Seat the new grommet fully in its groove before setting the cover in place, and tighten the cover fasteners evenly so the seal compresses without distortion.
- Look for oil residue along the cover edge or near spark plug tubes
- Replace the cover gasket or grommet together during a cover removal
- Inspect the cover mating surface for warping before reassembly
Specifications
| Brand | Crown Automotive |
|---|---|
| Part number | J8134400 |
| UPC | 848399072327 |
| Engine | 4.2L |
| Fitment | Direct Fit |
Vehicle fitment
It fits these vehicles and years:
- Jeep Cherokee (SJ) 4 door, 81-86
- Jeep Cherokee Chief (SJ) 2 door, 81-83
- Jeep CJ-5, 81-83
- Jeep CJ-7, 81-86
- Jeep CJ-8, 81-85
- Jeep Grand Wagoneer (SJ), 81-86
- Jeep J-Series, 81-86
- Jeep Wagoneer (SJ), 81-86
- Jeep Wagoneer (XJ), 84-86
The Jeep Cherokee (XJ) and Wrangler are not among the fitments shown. Confirm fit for your vehicle’s year, model and trim before ordering.
What’s included
The part is a valve cover grommet. Check the package contents against your installation before starting.









