6N8637 Fuel Injection Pump for Caterpillar Equipment

The 6N8637 is a fuel injection pump used in Caterpillar equipment and engines. It is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The part is listed for use in Caterpillar track-type tractors, off-road dump trucks, wheel-type loaders, industrial engines, and engine-generator sets. The supplied application data identifies the equipment and engine models below.

Fitment

• Track-Type Tractor: Caterpillar 59, 9, 9C, 9S, 9U, D9L
• Off-Road Dump Truck: Caterpillar 772B, 773B
• Wheel-Type Loader: Caterpillar 992C
• Industrial Engine: Caterpillar 3412, 3412C
• Engine-Generator Set: Caterpillar 3412, 3412C, SR4

For machine identification, the listed fitment includes both complete Caterpillar machine models and Caterpillar engine or generator-set applications. The equipment model and the identification number of the removed component should be checked before installation.

Cross-reference numbers

The numbers 6N8637 and 6N-8637 identify the same listed fuel injection pump reference, with the second format including a hyphen. No additional supplier or equipment-manufacturer reference numbers are provided in the available product data.

Specifications

The dimensions are recorded in the available product information in both imperial and metric units. The listed data provides separate length values in inches and centimetres; these values are reproduced as supplied and should be verified against the installation location and the removed pump where dimensional clearance is critical.