4K1388 O-ring fit Caterpillar
4K1388 O-ring fit Caterpillar
- New aftermarket part
- 30 day returns
- Manufacturer's warranty
4K1388 O-Ring for Caterpillar Equipment
The 4K1388 is an O-ring seal used in Caterpillar equipment, including articulated dump trucks and asphalt pavers. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).
The part is identified by SKU 4K1388 and is listed for use with the Caterpillar machine models shown below. The equipment brand named in the fitment data is Caterpillar; the part is not identified as being manufactured by Caterpillar.
Fitment
| Equipment manufacturer | Caterpillar |
| Equipment type | Articulated dump truck |
| Equipment type | Asphalt paver |
| Compatible model | Caterpillar 725 |
| Compatible model | Caterpillar 730 |
| Compatible model | Caterpillar D350E |
| Compatible model | Caterpillar D400E |
| Compatible model | Caterpillar 740 |
| Compatible model | Caterpillar D400E II |
| Compatible model | Caterpillar AP-1000 |
| Compatible model | Caterpillar AP-1000B |
| Compatible model | Caterpillar AP-1000D |
The listed fitment includes models from the Caterpillar 725, 730, D350E, D400E, D400E II, 740, AP-1000, AP-1000B and AP-1000D ranges. The source data lists Caterpillar 730 twice; it is shown once in the model table.
Cross-reference numbers
| SKU | 4K1388 |
| Caterpillar part number | 4K1388 |
| Interchange number | 775246 |
| Interchange number | 951762 |
| Interchange number | 9G5092 |
Part number 4K1388 is used both as the product SKU and as the Caterpillar part number listed for this seal. The numbers 775246, 951762 and 9G5092 are listed as interchangeable aftermarket reference numbers for the same part.
Specifications
| Part type | O-ring seal |
| Manufacturer | CTP (Costex Tractor Parts) |
| Condition | New |
| Length | 3 cm |
| Width | 3 cm |
| Depth | 0.2 cm |
| Weight | 0.1 lb |
The available dimensional data is stated as length 3 cm, width 3 cm and depth 0.2 cm. The listed weight is 0.1 lb. Material, exact internal diameter, cross-section diameter, installation position and package contents are not specified in the available product data.







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