9S8001 Straight Thread O-Ring Hex Drive Plugs fit Caterpillar
9S8001 Straight Thread O-Ring Hex Drive Plugs fit Caterpillar
- New aftermarket part
- 30 day returns
- Manufacturer's warranty
9S8001 Straight Thread O-Ring Hex Drive Plug
The 9S8001 straight-thread O-ring hex-drive plug is a threaded sealing plug for Caterpillar articulated dump trucks. It is used with a 4J-7533 O-ring and has a coated steel construction, a hex-drive configuration, and a straight-thread connection. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).
The part is intended for installation in equipment manufactured by Caterpillar. The listed application is the articulated dump truck equipment group, including the Caterpillar 725, 730, 735, 740, D250E, D250E II, D300E, D300E II, D350E, and D350E II models. The plug is supplied as the threaded plug component; the associated O-ring reference is listed separately below.
Fitment
- Caterpillar 725 articulated dump truck
- Caterpillar 730 articulated dump truck
- Caterpillar 735 articulated dump truck
- Caterpillar 740 articulated dump truck
- Caterpillar D250E articulated dump truck
- Caterpillar D250E II articulated dump truck
- Caterpillar D300E articulated dump truck
- Caterpillar D300E II articulated dump truck
- Caterpillar D350E articulated dump truck
- Caterpillar D350E II articulated dump truck
Fitment is listed for the Caterpillar articulated dump truck range above. Before installation, the part number, thread specification, sealing-ring reference, and plug location should be compared with the service documentation for the specific machine configuration.
Cross-reference numbers
- 9S8001
- 9S-8001
9S8001 and 9S-8001 are number formats used for the same plug reference, with and without the hyphen. The associated sealing ring is identified separately as 4J-7533 and is not a second plug number.
Specifications
| Part type | Straight-thread O-ring hex-drive plug |
| Product category | O-ring seals |
| Equipment manufacturer | Caterpillar |
| Application | Articulated dump trucks |
| Part number | 9S8001 |
| Hyphenated part number format | 9S-8001 |
| Sealing ring reference | 4J-7533 O-ring |
| Material | Coated steel |
| Thread type | Straight thread |
| Thread size | 5/16-24 in |
| Thread pitch | 24 threads per inch |
| Drive type | Hex drive |
| Listed plug length | 0.4 in |
| Listed plug height | 0.4 in |
| Listed weight | 0.1 lb |
| Additional listed length | 8.89 cm |
| Additional listed width | 15.24 cm |
| Additional listed depth | 1.27 cm |
The plug uses an O-ring sealing arrangement rather than a tapered thread seal. The 4J-7533 O-ring reference identifies the sealing element associated with the 9S8001 plug. The threaded connection is specified as 5/16-24 in, and the plug is designed for installation with a hex drive.
For parts identification, use 9S8001 or 9S-8001 when comparing the plug with the machine parts documentation. The fitment information provided for this part covers the Caterpillar 725, 730, 735, 740, D250E, D250E II, D300E, D300E II, D350E, and D350E II articulated dump truck models.























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