K20A3 Engine
| Piston | Skirt O.D. at 11 mm (0.4 inch) from bottom of skirt | No letter or A | Standard or new | 85.980 - 85.990 mm |
| Service limit | 85.930 mm | |||
| Letter B | Standard or new | 85.970 - 85.980 mm | ||
| Service limit | 85.920 mm | |||
| Clearance in cylinder | Standard or new | 0.020 - 0.040 mm | ||
| Service limit | 0.05 mm | |||
| Ring groove width | Top | Standard or new | 1.220 - 1.230 mm | |
| Service limit | 1.25 mm | |||
| Second | Standard or new | 1.220 - 1.230 mm | ||
| Service limit | 1.25 mm | |||
| Oil | Standard or new | 2.005 - 2.025 mm | ||
| Service limit | 2.05 mm |