8N1831 Nozzle As-Fuel Valve

The 8N1831 Nozzle As-Fuel Valve is a fuel injection system component used on Caterpillar equipment. It is installed in the fuel system of selected Caterpillar engines and machines listed below. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The part is identified as a nozzle assembly for the fuel valve and is associated with the fuel injection system on crawler tractors, off-road trucks, wheel bulldozers, engine and generator sets, tractor-scrapers, ship equipment, industrial engines, pipelayers, track loaders, and earthwork compactors. The equipment brand covered by the listed application data is Caterpillar.

Fitment

The 8N1831 fuel nozzle assembly is listed for the following Caterpillar equipment models and machine series:

• Tracked bulldozers: D8K, D9H.
• Off-road dump trucks: 768B, 769, 769B.
• Wheel bulldozers: 824B.
• Engine and generator sets: D379B, D398B.
• Wheeled tractor-scrapers: 657B, 657, 666, 666B.
• Ship equipment: D353C, D353D, D353E.
• Industrial engines: D353C, D353D, D353E.
• Pipelayers: 583K, 594H.
• Track loaders: 983.
• Earthwork compactors: 825B.

The model information above is grouped by equipment type according to the available application data. The D353C, D353D, and D353E designations are listed for both ship equipment and industrial engine applications. Before installation, the part number and machine configuration should be checked against the service parts information for the specific Caterpillar unit.

Cross-reference numbers

The part is identified by the following number formats:

• 8N1831.
• 8N-1831.

8N1831 and 8N-1831 refer to the same listed part number format, with and without the hyphen. No additional supplier or equipment-manufacturer cross-reference numbers are provided in the available product data.

Specifications

The inch and metric values are reproduced from the available part data as separate listed specifications. The supplied information does not define whether the dimensional values refer to the complete assembly, a package, or a particular measurement point. The product data also does not specify included seals, washers, retaining components, or other installation hardware; therefore, these items are not included in the stated specifications.