CBQ Gear Pumps Hydraulic Oil Pumps High Pressure Pump CBQ-F520-G520-F525-G525-F532-G532-F540-G540-F5

CBQ Series Hydraulic Gear Pump — F/G520/525/532/540, Standard & High Pressure

The CBQ series gear pump is a family of external gear hydraulic pumps covering displacement sizes from 20cc to 40cc per revolution in both F (standard pressure, up to 2,500 PSI) and G (high pressure, up to 3,000+ PSI) configurations — providing a single-platform pump solution for forklifts from 1.5T through 7T. The CBQ designation covers models F520, G520, F525, G525, F532, G532, F540, and G540, where the number indicates approximate displacement (20, 25, 32, or 40cc/rev) and the F/G prefix indicates the pressure rating. Selecting the correct CBQ variant requires matching the displacement to the engine-driven pump speed and the hydraulic system flow requirement — too small a pump results in slow lift and tilt speeds, while too large a pump wastes engine power and generates excess heat that degrades the hydraulic oil.

Built with cast iron housing, hardened and ground alloy steel gear sets, and pressure-balanced wear plates, the CBQ series gear pump delivers consistent volumetric efficiency across its entire displacement range. The F-series pumps are designed for standard forklift hydraulic systems where power steering is supplied by a separate pump or priority valve, while the G-series pumps handle high-pressure applications including heavy forklift main circuits and attachment hydraulic systems with higher working pressure requirements. All CBQ pumps share the same mounting flange pattern and port configuration within the series, allowing a standard-to-high-pressure upgrade without modifying the pump mounting pad or hydraulic lines.

Available in the following configurations: CBQ-F520 (20cc standard), CBQ-G520 (20cc high-pressure), CBQ-F525 (25cc standard), CBQ-G525 (25cc high-pressure), CBQ-F532 (32cc standard), CBQ-G532 (32cc high-pressure), CBQ-F540 (40cc standard), CBQ-G540 (40cc high-pressure). Verify the required displacement and pressure rating against the removed pump model number. For control valves, cylinders, and seals, browse our forklift hydraulic components.

Technical Specifications

• Series: CBQ external gear hydraulic pump
• Displacement Range: 20cc, 25cc, 32cc, 40cc/rev
• Pressure Ratings: F-series (standard), G-series (high-pressure)
• Housing: Cast iron, pressure-balanced wear plates
• Gears: Hardened and ground alloy steel
• Mounting: Standard CBQ flange pattern
• Models: F520, G520, F525, G525, F532, G532, F540, G540
• Fitment: 1.5T-7T forklifts, CBQ series specification

Displacement Selection Guide

Each CBQ gear pump ships with ports capped and assembly lubricant. Verify the exact model number (F or G prefix, displacement number) against the removed pump before ordering — the mounting flange is identical across the CBQ series, but displacement and pressure rating directly affect system performance. Prime the pump through the suction port before startup. For CBQ series application specifications, consult Baldwin Filters. Kingstream stocks the full CBQ series — worldwide shipping with online tracking.