TM 9-2815-237-34 Change 1 2-193/(2-194 blank) 2-45.   REPAIR AND REPLACEMENT STANDARDS (Cont’d) Table 2-4.  6.2L Diesel Engine Piston-Cylinder Specification. Table 2-5.  6.5L Diesel Engine Piston-Cylinder Specification. PISTON CODE PISTON SIZE CYLINDER SIZE Standard S5 3.9749 in. to 3.9754 in. 3.9778 in. to 3.9784 in. PN 23500391 (100.962-100.975 mm) (101.036-101.051 mm) Standard Hi-Limit S7 3.9759 in. to 3.9765 in. 3.9788 in. to 3.9794 in. PN 23500392 (100.988-101.003 mm) (101.061-101.077 mm) Oversized 2 4.0044 in. to 4.0050 in. 4.0074 in. to 4.0079 in. PN 23500393 (101.712-101.727 mm) (101.788-101.801 mm) Oversized 3 4.0050 in. to 4.0055 in. 4.0079 in. to 4.0085 in. PN 23500393 (101.727-101.740 mm) (101.801-101.816 mm) Use standard ring set, part number (11862) 15537018, NSN 2815-01-163-7838, with standard and standard Hi-Limit pistons. Oversized piston (0.75 mm) ring set part number is (11862) 15537020, NSN 2815-01-163-9999. PISTON CODE PISTON SIZE CYLINDER SIZE Standard 4.0529 in. to 4.0534 in. 4.0571 in. to 4.0576 in. (11862) 12550059 (102.944-102.956 mm) (103.050-103.063 mm) 0.50 mm Oversized 4.0739 in. to 4.0745 in. 4.0782 in. to 4.0787 in. (11862) 12550062 (103.477-103.492 mm) (103.586-103.599 mm) Piston ring set part numbers are: Standard – (11862) 12510752 0.50 mm Oversized – (11862) 12510753 The 6.5L engine does not have a standard Hi-Limit piston.