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Caterpillar 204-2678 Swing Motor Relief Valve Assembly
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| Part Type | Hydraulic Relief Valve |
|---|---|
| Applications | Swing Motor Circuit |
| Function | Swing Motor Pressure Relief |
| Weight | 0.48 kg |
| Dimensions LxWxH | 18.0 x 5.5 x 5.5 cm |
Manufacturer No.
- 204-2678
- 2042678
OEM Part No.
- 204-2678
- 2042678
Engine Part No.
- Caterpillar C9
- Caterpillar C9.3
Interchange No.
- CA2042678
Fitment Vehicles
- Caterpillar 330C
- Caterpillar 330D
- Caterpillar 330D2
- Caterpillar 330FL
- Caterpillar 335F
- Caterpillar 336D
- Caterpillar 336D2
- Caterpillar 336E
- Caterpillar 336F
- Caterpillar 340F
- Caterpillar 345C
- Caterpillar E320DL
- Caterpillar E330D
The 204-2678 valve group is a hydraulic relief valve designed for the swing motor circuit on Caterpillar excavators. It regulates hydraulic pressure to prevent overpressure damage during swing operations, ensuring smooth and controlled rotation of the upper structure.
Compatible with Caterpillar C9 and C9.3 diesel engines. Directly fits excavator models including 330C, 330D, 330D2, 330FL, 335F, 336D, 336D2, 336E, 336F, 340F, 345C, E320DL, and E330D. This component is critical for hydraulic system protection and operational safety. Aftermarket replacements are manufactured to meet OEM specifications for durability and performance under extreme heavy-duty conditions.
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