Heater Core: Labor Times
| Standard Hours | Manufacturer Warranty Hours | Skill Level | Notes | |
| Replace | ||||
| Main Heater | 2.0 | 0.0 | B | |
| Auxiliary Heater | 1.5 | 1.1 | B | |
| Note | ||||
| To Pressure Test Core, Add | 0.5 | 0.3 | B |
| Standard Hours | Manufacturer Warranty Hours | Skill Level | Notes | |
| Replace | ||||
| Main Heater | 2.0 | 0.0 | B | |
| Auxiliary Heater | 1.5 | 1.1 | B | |
| Note | ||||
| To Pressure Test Core, Add | 0.5 | 0.3 | B |