| M73/M73TU | -- | -- |
| Measuring point "A" (position is 90 degs. to pin from lower edge of skirt) | mm | 14 |
| Piston Diameter (from point "A") | -- | -- |
| Stage 0 Size A | mm | 84.976 (+0.014) |
| Stage 0 Size B | mm | 84.991 (+0.013) |
| Stage 00 Size A | mm | 85.056 (+0.014) |
| Stage 00 Size B | mm | 85.071 (+0.013) |
| Stage 1 Size A | mm | 85.226 (+0.014) |
| Stage 1 Size B | mm | 85.241 (+0.013) |
| Stage 2 Size A | mm | 85.476 (+0.014) |
| Stage 2 Size B | mm | 85.491 (+0.013) |
| Piston running clearance | mm | 0.010 (+0.024) |
| Max. total wear total clearance (engine operated) | mm | 0.1 |