2487179 Hnbr (78) O-ring fit Caterpillar
2487179 Hnbr (78) O-ring fit Caterpillar
- New aftermarket part
- 30 day returns
- Manufacturer's warranty
2487179 HNBR (78) O-Ring for Caterpillar Equipment
This O-ring is a sealing component used in Caterpillar excavators, front shovels, and mobile hydraulic power units. It is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).
Fitment
The part is listed for the following Caterpillar equipment models and machine series:
| Equipment type | Compatible Caterpillar models |
| Excavators | 345B II, 345C, 345C L, 365B, 365B II, 365B L, 365C, 365C L, 365C L MH |
| Excavators | 374D L, 374F L, 385B, 385C, 385C FS, 385C L, 385C L MH |
| Excavators | 390D, 390D L, 390F L |
| Front shovels | 385C, 5090B |
| Mobile hydraulic power units | 365C L, 385C, 385C L |
The listed applications cover Caterpillar equipment in the excavator, front shovel, and mobile hydraulic power unit categories. Model designations should be checked against the machine serial number and the existing seal before installation.
Specifications
| Part type | O-ring |
| SKU | 2487179 |
| Material designation | HNBR |
| Material code | 78 |
| Equipment manufacturer | Caterpillar |
| Equipment category | Heavy equipment and mobile hydraulic power units |
| Weight | 0.1 lb |
| Length | 15.24 cm |
| Width | 20.32 cm |
| Depth | 2.54 cm |
The supplied data identifies the part as an HNBR O-ring with material code 78. The listed dimensions and weight are retained as provided for this product. The available data does not specify the O-ring inner diameter, cross-section, hardness, operating temperature range, or package contents.
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