Overview
The Crown Automotive J8125727 is a lower engine gasket set for AMC 304 to 401 V8 engines. It fits Jeep CJ-5, CJ-6, CJ-7, Commando, Cherokee (SJ), Grand Wagoneer (SJ), Wagoneer (SJ) and J-series trucks from 1971 to 1991.
Owners of an AMC-powered CJ-7 or an SJ Cherokee should confirm their model year before buying.
Key features
- Designed for AMC 304 to 401 V8 engines
- Covers the 1976 to 1981 CJ-7 and the 1975 to 1983 CJ-5 in the manufacturer list
- Lists J10 and J20 trucks from 1975 to 1988 among its applications
- Direct Fit classification from the manufacturer
Matching the engine family
AMC V8 engines shared a basic block family, but the year, displacement and accessory layout still vary, so a gasket set built for one should be matched carefully. Before ordering, identify the engine by its casting marks or the engine code on the vehicle, and compare that with the application you have. Mismatched gaskets are a common reason for leaks at the front cover.
Gasket sets for older V8s often include seals for the timing cover, valley and rear main area. Replacing them together saves time when the engine is already open, and it avoids a repeat of the same job shortly after. Keep notes on which pieces you removed and in what order to make reassembly easier.
- Identify the engine before ordering
- Check the timing cover seal for wear
- Note bolt lengths when removing parts
Specifications
| Brand | Crown Automotive |
|---|---|
| Part number | J8125727 |
| UPC | 848399068146 |
| Part type | Lower engine gasket set |
| Engine | AMC 304 to 401 V8 |
| Fitment classification | Direct Fit |
Vehicle fitment
The manufacturer fitment list includes: 1975 to 1983 Cherokee (SJ); 1971 to 1981 CJ-5; 1971 to 1975 CJ-6; 1976 to 1981 CJ-7; 1972 to 1973 Commando; 1984 to 1991 Grand Wagoneer (SJ); 1971 to 1972 J-100, J-2500, J-2600, J-4500, J-4600, J-4700 and J-4800 trucks; 1975 to 1988 J10 and J20; and 1972 and 1975 to 1983 Wagoneer (SJ).
The list does not include the Cherokee (XJ) or the Wrangler (YJ), and it names J-series trucks only for the years shown. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
This set is made for AMC V8 engines, so confirm the engine family before fitting it.
What’s included
Check the number and type of pieces against your engine before starting the job.
