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GC Series Gear Pumps, Up To 5.5 GPM @ 1800 RPM, Up to 4000 PSI, Up to 4000 RPM

Description & Features

Features	Designed to provide reliable, long-life service under rugged conditions, G.C. Series pumps are built with cast iron bodies and hardened steel gears. Among their other standard, extra-value features are: • Superior volumetric efficiency • Needle bearing construction • High mechanical efficiency • Wide variety of options
Maximum System Temperature	250°F
Note	Ratings based on using anti wear hydraulic fluid with viscosity 200 SSU. For information on use with other fluids, contact us for assistance.
Pressure Limit	Outlet: (Varies with displacement. See table below).
Rated Speed	Maximum shaft speed: 4000 RPM; Minimum shaft speed: 750 RPM

Products

Model Number	Displacement	Rated Flow	Mount	Shaft	Ports	Rotation	Features	Speed Rating	Pressure Rating
1300086 GC Series Gear Pump	0.129	1	4-bolt 1.78 in. pilot	0.17 1in. Tang w/Short Coupling	SAE-6 Side	Bi-Directional with check valves	Single Lip Buna-N Pressure Seal	4000 RPM	3000
1300094 GC Series Gear Pump	0.129	1	4-bolt 1.78 in. pilot	0.50 in. dia. X 1.50 in. extension	SAE-6 Side	Bi-Directional with check valves	Viton High-Pressure Seal w/Outboard Ball Bearing	4000 RPM	3000
1300096 GC Series Gear Pump	0.258	2	4-bolt 1.78 in. pilot	0.50 in. dia. X 1.50 in. extension	SAE-8 Side	Bi-Directional with check valves	Viton High-Pressure Seal w/Outboard Ball Bearing	4000 RPM	2300
1300098 GC Series Gear Pump	0.388	3	4-bolt 1.78 in. pilot	0.50 in. dia. X 1.50 in. extension	SAE-10 Side	Bi-Directional with check valves	Viton High-Pressure Seal w/Outboard Ball Bearing	4000 RPM	1600

Product Questions & Answers (1)

Question by: Freddie W on Oct 17, 2025, 9:19 AM

What kind of fluid *should* I be running in this pump?

Answer by: Customer Support on Oct 19, 2025, 6:31 AM

Ratings are based on using anti-wear hydraulic fluid with a viscosity of 200 SSU. If you're considering other fluids, it's best to reach out to us so we can help determine compatibility and any necessary adjustments.