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Part Number: 133-7031 (1337031)
133-7031 Air Compressor GP is a complete OEM-grade assembly designed for CAT C12 engines. It provides stable compressed air supply for engine control systems, braking circuits and auxiliary functions. This group includes hoses, elbows, fittings, seals, brackets and hardware required for correct installation and long-term reliability in industrial, marine and mining applications.
| Ref. No. | Part Number | Alternative Number | Qty | Part Name |
|---|---|---|---|---|
| 1 | 1W-0428 | 1W0428 | 1 | Hose As |
| 2 | 7W-5499 | 7W5499 | 1 | Elbow |
| 3 | 6V-8197 | 6V8197 | 3 | Bolt (M12 × 1.75 × 40 mm) |
| 4 | 8M-7065 | 8M7065 | 1 | Gasket – Air Inlet |
| 5 | 9M-2904 | 9M2904 | 1 | Hose Clamp |
| 6 | 172-4702 | 1724702 | 2 | Clamp |
| 7 | 9Y-1116 | 9Y1116 | 1 | Hose As – End |
| 8 | 032-3631 | 0323631 | 1 | Elbow |
| 9 | 090-8635 | 0908635 | 1 | Spacer (5 mm) |
| 10 | 117-0221 | 1170221 | 1 | Ring – Pilot |
| 11 | 126-0146 | 1260146 | 1 | Hose – Fumes Disposal |
| 12 | 128-0331 | 1280331 | 1 | Hose |
| 13 | 128-0420 | 1280420 | 1 | Gear (42 Teeth) |
| 14 | 129-2181 | 1292181 | 1 | Seal – Integral |
| 15 | 131-2171 | 1312171 | 1 | Connector |
| 16 | 131-6679 | 1316679 | 1 | Air Compressor GP |
| 17 | 153-7062 | 1537062 | 1 | Bracket |
| 18 | 166-6352 | 1666352 | 1 | Tube As (M10 × 1.50 × 25 mm) |
| 19 | 005-0658 | 0050658 | 1 | Elbow – Flared |
| 19A | 6V-5063 | 6V5063 | 1 | O-Ring (23.47 mm ID) |
| 20 | 001-7043 | 0017043 | 1 | Elbow (12.7 mm ID) |
| 21 | 118-4728 | 1184728 | 1 | Elbow |
| 22 | 2B-2695 | 2B2695 | 2 | Bolt (5/16-18 × 0.875 in) |
| 23 | 2S-2053 | 2S2053 | 1 | Clip (34.92 mm ID) |
| 24 | 3E-4353 | 3E4353 | 2 | Washer-Hard (3 mm) |
| 25 | 5P-8245 | 5P8245 | 3 | Washer-Hard (3 mm) |
| 26 | 5S-0003 | 5S0003 | 2 | Nut (5/16-18) |
| 27 | 6D-4244 | 6D4244 | 1 | Clip (22.22 mm ID) |
| 28 | 6M-7476 | 6M7476 | 1 | Elbow – Flared 45° |
| 29 | 6V-3251 | 6V3251 | 2 | O-Ring (19.18 mm ID) |
| 30 | 6V-4248 | 6V4248 | 3 | Bolt (M10 × 1.50 × 25 mm) |
| 31 | 6V-5839 | 6V5839 | 1 | Washer (2.5 mm) |
| 32 | 6V-6609 | 6V6609 | 1 | O-Ring (16.36 mm ID) |
| 33 | 6V-7742 | 6V7742 | 1 | Nut-Full (M20 × 2.50) |
| 34 | 8L-6557 | 8L6557 | 1 | Connector (37° Flared) |
| 35 | 8M-2770 | 8M2770 | 1 | Clip (12.7 mm ID) |
| 36 | 8T-3282 | 8T3282 | 1 | Washer-Hard (3.5 mm) |
| 37 | 9M-1974 | 9M1974 | 2 | Washer-Hard (2 mm) |
| 38 | 9N-0869 | 9N0869 | 2 | Washer-Hard (2 mm) |
Explore our complete CAT C12 spare parts catalog to find additional components for air systems, mounting assemblies, cooling, lubrication and hardware kits.
If you cannot find a specific item in the list — contact our specialists. We will help verify compatibility and identify the correct Caterpillar part using OEM numbers, engine configuration or technical drawings.
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.