How to Select Piston

HOW TO SELECT PISTON






When New Cylinder Block is Used
Check the cylinder bore grade (1, 2, or 3) on rear side of cylinder block, and select a piston of the same grade.

The piston is available with piston pin as a set for the service part. (Only 0 grade piston pin is available.)







When Cylinder Block is Reused
1. Measure the cylinder block bore inner diameter.
2. Determine the bore grade by comparing the measurement with the values under the cylinder bore inner diameter of the "Piston Selection Table".
3. Select the piston of the same grade.

Piston Selection Table:

NOTE: The piston is available together with piston pin as an assembly.
The piston pin (piston pin bore) grade is provided only for the parts installed at the plant. For service parts, no piston pin grades can be selected. (Only 0 grade is available.)
No second grade mark is available on piston.