9M4618 Silicone O-ring fit Caterpillar
9M4618 Silicone O-ring fit Caterpillar
- New aftermarket part
- 30 day returns
- Manufacturer's warranty
9M4618 Silicone O-ring for Caterpillar Equipment
The 9M4618 is a silicone O-ring used in Caterpillar equipment and engines. It is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).
The part is listed for Caterpillar construction machinery, industrial engines, generator set engines, tractors, loaders, scrapers, skidders, and feller bunchers. The fitment information below is based on the equipment models specified for SKU 9M4618.
Fitment
| Feller buncher | FB518 |
| Generator set engines | D379B, D398B, D399 |
| Industrial engines | D342C, D379, D398, D399 |
| Track loader | 955H |
| Track-type tractor | D8H |
| Wheel loaders | 920, 930, 950 |
| Wheel scraper | 657 |
| Wheel skidders | 518, 518C, 528, 528B, 530B |
| Wheel tractors | 613, 613B |
Fitment should be checked against the equipment model and the part number specified for the assembly being serviced. The listed applications include both complete machine models and engine models, so the installation position depends on the particular Caterpillar machine or engine configuration.
Specifications
| Part type | Silicone O-ring |
| SKU | 9M4618 |
| Equipment brand | Caterpillar |
| Part category | Hardware |
| Part condition | New |
| Part manufacturer | CTP (Costex Tractor Parts) |
| Listed weight | 0.1 lb |
| Listed length | 8.7 cm |
| Listed width | 14.3 cm |
| Listed depth | 0.1 cm |
The available product data identifies the component as a silicone O-ring and provides the listed weight and external dimensions above. No additional information about the O-ring’s internal diameter, cross-section, hardness, operating temperature range, sealing position, or included components is specified.





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