8N4203 Fuel Injection Pump for Caterpillar

The 8N4203 fuel injection pump is used on Caterpillar off-road dump trucks, wheel-type loaders, wheeled tractor-scrapers, industrial engines, and engine-generator sets. This is a new aftermarket fuel injection pump manufactured by CTP (Costex Tractor Parts).

The part number is shown in two formatting variants: 8N4203 and 8N-4203. The available equipment application data identifies the pump for Caterpillar machines and engines listed below.

Fitment

• Off-road dump trucks: Caterpillar 772B and 773B.
• Wheel-type loaders: Caterpillar 992C.
• Wheeled tractor-scrapers: Caterpillar 651E and 657E.
• Industrial engines: Caterpillar 3412.
• Engine-generator sets: Caterpillar 3412 and 3412C.

The Caterpillar 3412 engine is included in the listed applications for both industrial engine equipment and engine-generator set configurations. The 3412C engine is listed for engine-generator sets.

Cross-reference numbers

8N-4203 and 8N4203 identify the same product number with and without the hyphen. The available product data does not specify additional equipment-manufacturer or supplier cross-reference numbers.

Specifications

The listed dimensional values are provided in the available product data in both inches and centimetres. Only the length is stated in both measurement systems; height is stated in inches, while width and depth are stated in centimetres. No additional information is provided for material, thread size, mounting position, drive arrangement, or included components.