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Part Number: 131-6679 (1316679)
131-6679 Air Compressor GP is an OEM-grade assembly designed for reliable air supply and stable compressor performance on CAT C-series engines. This unit ensures correct lubrication, smooth piston operation and consistent delivery pressure in mining, industrial and marine applications. All components listed below meet Caterpillar specifications and are suitable for service, overhaul and scheduled maintenance.
| Ref. No. | Part Number | Alternative Number | Qty | Part Name |
|---|---|---|---|---|
| 1 | 7C-6178 | 7C6178 | 2 | Bearing – Rear |
| 2 | 7E-8928 | 7E8928 | 1 | Gasket – Base |
| 3 | 3B-4505 | 3B4505 | 4 | Lockwasher (0.097 in thick) |
| 4 | 4P-3977 | 4P3977 | 1 | Gasket – Cylinder Head |
| 5 | 0S-1617 | 0S1617 | 12 | Bolt (5/16–18 × 0.75 in) |
| 6 | 8T-6764 | 8T6764 | 2 | Plug – Pipe |
| 7 | 4P-3966 | 4P3966 | 2 | Piston & Rod Assembly |
| 8 | 8T-6762 | 8T6762 | 1 | Plug – Pipe |
| 9 | 0L-1352 | 0L1352 | 6 | Bolt (3/8–16 × 3.25 in) |
| 10 | 146-0835 | 1460835 | 2 | Stud – End Cover |
| 11 | 2H-3934 | 2H3934 | 1 | Seal – O-Ring |
| 12 | 103-6216 | 1036216 | 1 | Key |
| 13 | 124-5572 | 1245572 | 1 | Valve |
| 14 | 130-5997 | 1305997 | 1 | Plate – Information |
| Kit Number | Description |
|---|---|
| 7E-8923 | Crankshaft Bearing Kit — includes seals, bearings, inserts, gaskets and washers |
| 7E-8925 | Standard Ring Kit — includes seals, bearings, inserts, gaskets and washers |
| 7E-8926 | Cylinder Head Kit — includes seals, bearings, inserts, gaskets and washers |
| 150-5146 | Unloader Kit — complete service kit for unloader mechanism |
Explore the full CAT C12 spare parts catalog for additional air system, lubrication, fuel, cooling and basic engine components.
If the component you need does not appear in this list, please contact our specialists. We will verify compatibility and help you source the correct OEM or replacement part based on the engine model, serial number or technical documentation.
Our website uses cookies, including web analytics services. By using the site, you agree to the processing of personal data by cookies. For more information on the processing of personal data, please see our Privacy Policy.