1N9303 Seal O Ring fit Caterpillar
1N9303 Seal O Ring fit Caterpillar
- New aftermarket part
- 30 day returns
- Manufacturer's warranty
1N9303 Seal O-Ring for Caterpillar Equipment
The 1N9303 is an O-ring seal used in Caterpillar industrial engines, marine engines, track-type tractors, trucks, and vehicular engines. It is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).
The available application data identifies this seal for Caterpillar equipment equipped with D346, D348, or D349 engine configurations, as well as for the Caterpillar D10 track-type tractor and Caterpillar 777 truck.
Fitment
- Industrial engines: Caterpillar D346, D348, D349
- Marine engines: Caterpillar D346, D348, D349
- Track-type tractors: Caterpillar D10
- Trucks: Caterpillar 777
- Vehicular engines: Caterpillar D346, D349
The listed fitment covers the equipment and engine applications identified in the available product data. Model designation and equipment type should be checked against the machine parts documentation before installation, particularly where the same engine series is used in more than one equipment category.
Specifications
| Part type | O-ring seal |
| SKU | 1N9303 |
| Equipment brand | Caterpillar |
| Applicable engine models | D346, D348, D349 |
| Applicable machine model | D10 track-type tractor |
| Applicable truck model | 777 |
| Weight | 0.2 lb |
| Length | 15 cm |
| Width | 15 cm |
| Depth | 0.1 cm |
The supplied specifications do not identify the seal material, exact installation position, cross-sectional diameter, inner diameter, or outer diameter. These parameters are therefore not listed as confirmed specifications for SKU 1N9303.




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