1006239 Piston Pump-Hydraulic Fits Caterpillar Models

One New Aftermarket Replacement Hydraulic Piston Pump for Caterpillar (Cat) Track-Type Tractors and Motor Graders

This aftermarket replacement hydraulic piston pump (Pump GP-Piston) serves the main hydraulic system on Caterpillar (Cat) D8R and D9R track-type tractors, as well as Cat 14H, 16H, 20H, and 24H motor graders, Cat 789C, 793, 793B, and 793C mining trucks, and Cat 5230 and 5230B mining excavators. The pump powers critical machine functions by converting mechanical input into hydraulic pressure for steering, blade control, and other hydraulic circuit operations. This part is used in Vickers PVH 131-series variable-displacement inline piston pump assemblies common to these large Cat machines.

Note: This pump is used in the differential steering hydraulic circuit on Cat D9R track-type tractors (serial ranges 7TL00001 and up, ABK00001 and up). Verify serial number and machine configuration before ordering.

Compatible Models

Caterpillar Track-Type Tractors: D8R, D9R

Caterpillar Motor Graders: 14H, 16H, 20H, 24H

Caterpillar Mining Trucks: 789C, 793, 793B, 793C

Caterpillar Mining Excavators: 5230, 5230B

Replaces Part Number(s):

1006239, 100-6239

Aftermarket Interchange Numbers

0R-7677, 0R7677, 6E-4216, 6E-3139, 6E-5650, 6E-6412, 6E-6627, 104-1752, 120-0576

New aftermarket replacement part - not remanufactured, not used.