| Part | Manufacturer | OEM Part # | Price | Notes |
| A/C Clutches |
| A/C Compressor Pulley, Double Belt - 6' Diameter. |
| Engine 616.912: to Series 10-010270 | MGB | 0001325908 | 488.00 | |
| Engine 616.912: to Series 12-002404 | MGB | 0001325908 | 488.00 | |
| A/C Coupling Drive, R-4, 4.9' Pulley |
| Engine 616.912: From Series 10-086379 | MGB | 0001323508 | 430.00 | |
| Engine 616.912: From Series 12-027799 | MGB | 0001323508 | 430.00 | |
| Coil Magnet, R-4 Compressor |
| Engine 616.912: From Series 10-086379 | MGB | 0001310288 | 384.00 | |
| Engine 616.912: From Series 12-027799 | MGB | 0001310288 | 384.00 | |
| Pulley Rim, R-4, 4.9' Pulley |
| Engine 616.912: From Series 10-086379 | MGB | 0001320515 | 109.00 | |
| Engine 616.912: From Series 12-027799 | MGB | 0001320515 | 109.00 | |
| Rotor & Bearing Body, R-4, 4.9' Pulley |
| Engine 616.912: From Series 10-086379 | MGB | 0001323608 | 780.00 | |
| Engine 616.912: From Series 12-027799 | MGB | 0001323608 | 780.00 | |