Piston Ring: Labor Times
| Standard Hours | Manufacturer Warranty Hours | Skill Level | Notes | |
| Replace | ||||
| One Cylinder | 8.1 | 5.8 | A | |
| Two Cylinders | 8.7 | 6.2 | A | |
| Three Cylinders | 9.1 | 6.5 | A | |
| Four Cylinders | 9.8 | 7.0 | A | |
| Five Cylinders | 10.5 | 7.5 | A |
| Standard Hours | Manufacturer Warranty Hours | Skill Level | Notes | |
| Replace | ||||
| One Cylinder | 8.1 | 5.8 | A | |
| Two Cylinders | 8.7 | 6.2 | A | |
| Three Cylinders | 9.1 | 6.5 | A | |
| Four Cylinders | 9.8 | 7.0 | A | |
| Five Cylinders | 10.5 | 7.5 | A |