Crown Automotive J3180458 Valve Retainer Lock for 81-90 Jeep Vehicles with 4.2L 258c.i. 6 Cylinder Engine & 1981 Vehicles with 5.0L 304c.i. V-8 Engine

The VAM engine was built from 1982-1985. These engines have an "M" code on the engine ID plate, which consists of a sequential number for the
various plants which may have produced engines, in this case "M" (for MEXICO) plant. The plate is located on the side of the block toward the
front, on the oil filter side.

Installation Notes

Installation Difficulty:

Level 3Advanced

Installation Time: 2-4 hours

Parts Included

1 Valve Retainer Lock

Warranty

12 month / 12,000 Mile Limited Warranty.