RAM 2500 Truck 4WD L6-5.9L DSL Turbo VIN 6 (1999)
Piston Grading Measurement
9. Determine the grade of the piston being used by referring to the Piston Protrusion Chart below. Four digits on top of the piston can be cross
referenced to a Chrysler part number for replacement. If the number on the piston cannot be seen, measure from the top of the piston to the top of
the piston pin to see what grade piston is used.
Alternative Grade Identification Method
ALTERNATIVE GRADE IDENTIFICATION METHOD
NOTE: Use the table below when piston grading numbers are missing or not legible.
Piston Protusion Chart
