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Home >> Jeep >> 1987 >> Wrangler Base, 2.5 H >> Repair and Diagnosis >> Engine Performance >> Adjustment >> Tune-Up - 6-CYL >> Identification >> Engine Identification

Engine Identification

Engine can be identified by the 4th character of engine Build Date Code number, located on a tag attached to right side of block between No. 2 and 3 cylinders.

The same code letter is also the 4th character in the Vehicle Identification Number (VIN), located at top left corner of dashboard.

ENGINE CODE

Engine Code
4.2L (258") 2-Bbl. C