The Buyers Products H2136171 H21 Series Hydraulic Gear Pump is engineered to deliver reliable, high-performance operation in demanding truck-mounted hydraulic systems. Designed with a 3 cubic inch displacement and providing 13 GPM at 1000 RPM, this pump supports consistent hydraulic flow across a range of applications including dump trucks and service equipment. Built for durability, the pump features a rugged cast iron construction paired with Teflon-coated bronze thrust plates for enhanced wear resistance and long service life. Its internal structure is reinforced with four dowels and a shaft bearing, ensuring stability and strength under continuous operation. Rated for pressures up to 2500 PSI, it is capable of handling heavy workloads with confidence. The bi-rotational design allows flexible installation for both direct and remote mount configurations, making it adaptable across various system setups. Equipped with a 7/8-13 spline shaft, SAE B 2/4 bolt mounting, and 1-1/4 inch NPT inlet and outlet ports, it offers compatibility with a wide range of hydraulic systems. Backed by Buyers Products’ reputation for dependable performance, this gear pump provides a durable and efficient solution for maintaining consistent hydraulic power in demanding environments.