Piston

* Diameter
Coded Grade 1 82.390-82.410 mm (3.2436-3.2444 inch)
Coded Grade 2 82.398-82.422 mm (3.2440-3.2449 inch)
Coded Grade 3 82.410-82.430 mm (3.2444-3.2452 inch)

Piston-to-Bore
Clearance Limit 0.012-0.022 mm (0.0005-0.0009 inch)

Piston Pin Bore 21.008-21.012 mm (0.8270-0.8272 inch)

Ring Groove Width:
Compression, Top 1.230-1.245 mm (0.0484-0.0490 inch)
Compression, Bottom 1.530-1.545 mm (0.0602-0.0608 inch)
Oil 3.030-3.055 mm (0.1192-0.0120 inch)

* Measured 43 mm below the piston top at 90° to the piston pin.