En Caterpillar 115-9899 Two Section Gear Pump (Part No. 1159899), a premium OEM component engineered for demanding heavy machinery applications. Specifically designed for high-capacity Track-Type Tractors such as the D9R (8BL, ACL, HWH, JJB, WDM), D9 GC-AK4, D10N-3SKy D10R-3KR, this precision-engineered gear pump delivers consistent fluid power for critical hydraulic systems. Ideal for use in mining and construction, the 115-9899 ensures efficient hydraulic flow, extended component life, and reduced machine downtime. Built to Caterpillar’s exacting standards, this dual-section pump is perfect for equipment overhauls and proactive maintenance in harsh environments.