Gear pumps are essential for transferring viscous fluids reliably in various industrial applications. Selecting the appropriate gear pump ensures optimal system performance, longevity, and safety. Understanding key specifications will help you make an informed decision for your specific needs.
Looking for the best Gear Pumps?
Discover now our comparison of the best Gear Pumps. It is never easy to choose from the wide range of offers. On the market, you will find an incalculable number of models, all at different prices. And as you will discover, the best Gear Pumps are not always the ones at the highest prices! Many criteria are used, and they make the richness and relevance of this comparison.
To help you make the best choice among the hundreds of products available, we have decided to offer you a comparison of the Gear Pumps in order to find the best quality/price ratio. In this ranking, you will find products listed according to their price, but also their characteristics and the opinions of other customers. Also discover our comparisons by categories. You won’t have to choose your products at random anymore.
No. 1
RONGPAS Hydro Gear Pump PG-1GAP-DY1X-XXX PG-1GAB-DY1X-XXXX BDP-10A-427 Compatible with Ariens 02964400 for...
- Part Number: PG-1GAP-DY1X-XXX, PG-1GAB-DY1X-XXXX, BDP-10A-427
- Replaces Part Numbers: For Ariens 02964400; For 103-2675, 103-1943; For Toro 103-1943; For Stens 025-007; For Hydro-Gear BDP-10A-427, BDP-10A-433, PG-1GAB-DY1X-XXXX
- Compatible with Hydro-Gear BDP-10A Series
- Compatible with Lazer Z Serial No. 370,000 and newer; 52", 60" and 72" decks
- Compatible with Toro Z 250's Z Master 742XX Series, 52", 62" and 72" decks; Z 500's Z Master, 2004 and Newer Hydraulic Group, 60" and 72" decks
No. 2
Rotary Gear Pump Head, 1 in, 1 HP
- Rotary Pumps
- Manufacturer: Dayton
- Country of Manufacturer: India
SaleNo. 3
SEAFLO 12V Self Priming Impeller Gear Pump - 3.2 GPM Oil Change Diesel Fuel Transfer Pump, Reversible Flow...
- [ SPECIFICATIONS ]: Model: SFOGP1-032-12 | Voltage: 12V DC | Flow Rate: 3.2 GPM (12 LPM) | Max Draw: 10A | Ports: 3/8" FNPT | Impeller: Copper | Motor: Sealed Housing | Operation: Reversible Flow | Warranty: 4 Years
- [ 4 YEAR WARRANTY ]: Backed by SEAFLO’s industry leading 4 Year Warranty providing long term reliability for routine oil changes diesel transfer and industrial service tasks ensuring dependable performance and extended operational value
- [ BUILT FOR HIGH VISCOSITY LIQUIDS ]: Designed for transferring oil diesel and lubricants efficiently with strong suction power delivering consistent flow rates ideal for machinery service marine engine applications and high viscosity fluid movement
- [ DURABLE METAL PUMP HEAD AND GEARS ]: Engineered with a rugged metal pump head and copper gears offering superior wear resistance during demanding operation ensuring longevity and dependable output for regular oil changes and service tasks
- [ REVERSIBLE FLOW OPERATION ]: Pump head design enables fluid movement in either direction improving versatility for filling draining and scavenge processes making it ideal for diesel lubricants machinery maintenance and industrial oil transfer work
- [ SELF PRIMING PERFORMANCE ]: Self priming technology provides fast reliable priming reducing downtime during oil changes or service operations allowing smooth startup even with thicker fluids or varying hose positions across different applications
- [ SEALED AND THERMALLY PROTECTED MOTOR ]: Motor housing is sealed against contaminants and features built in thermal protection preventing overheating extending motor life and meeting the demands of oil change diesel fuel and lubrication systems
No. 5
Chief Hydraulic Gear Pump – CW Rotation Hydraulic Splitter Pump – 5/8" Keyed Shaft – 4000 RPM, 3626 PSI...
- SPECS: High-efficiency hydraulic gear pump with 5/8" keyed shaft, 3626 PSI max pressure, 4000 RPM, 2-bolt SAE A flange, SAE 10 outlet ports, and 9.3 lb weight for compact hydraulic power.
- POWERFUL: External gear pump delivers strong, high-pressure output at 4000 RPM, providing fast, efficient performance for hydraulic equipment requiring consistent, reliable pressure.
- DURABLE: Corrosion-resistant aluminum body withstands up to 3626 PSI. Built for long service life with stable performance under demanding hydraulic conditions and minimal maintenance.
- PRECISE: 0.389 CID displacement supports accurate flow control and smooth dosing. Offers consistent volumetric output for systems that need stable, repeatable hydraulic delivery.
- EASY TO USE: Standard 2-bolt SAE A flange makes mounting simple. Lightweight 9.3 lb design provides easy handling and installation across mobile and industrial hydraulic setups.
SaleNo. 6
Getanye 4-12 GPM Hydraulic Gear Pump 3/4" Keyed Shaft 10/12 SAE A-2 Bolts 600-3000 RPM CW Cast Iron Flange...
- 4-12 GPM 3/4" Keyed Shaft Hydraulic Gear Pump for Left Clockwise
- Part# HGP CI34K-A02-097L
- Displacement - 0.97 Cubic Inches; Shaft Type - 3/4" Straight Keyed
- MAX Working Pressure - 3200 PSI; Peak Pressure - 3900 PSI
- Mounting Flange - SAE A-2 Bolts; Outlet Port - SAE 10; Inlet Port - SAE 12
- MAX Speed - 3000 RPM; MIN Speed - 600 RPM; Direction - Counter-Clockwise (Left)
No. 7
Faitio 12V Oil Extractor Pump, 3.2GPM Electric Gear Oil Pump, Fluid Transfer & Scavenge Pump for Engine Oil...
- One Pump for All: This 12V self-priming gear pump transfers motor oil, gear oil, transmission fluid, waste oil, lubricants, diesel, and kerosene for cars, motorcycles, lawn mowers, and marine engines. Designed to pump from tanks or drain pans — not for...
- Specifications: 12V DC, 78W standard power, 120W max load, 3.2 GPM flow. 0.3 MPa / 43.5 PSI Max Pressure. Work cycle up to 120 minutes.
- Efficient Oil Extractor: This marine oil pump features all-copper construction — motor, impeller, and pump head — providing lower power consumption and stronger output. Handles thick oils (80W-90) without any problem.
- Thermal Protection: The electric oil transfer pump features built-in thermal protection to prevent overheating, ensuring safe and continuous operation.
- Clean Way to Change Oil: Easily extract oil through the service or fill port without crawling into tight engine bays, fighting hard-to-reach drain bolts, or making a mess in the bilge or equipment compartment.
No. 8
CHIEF Gear Pumps (5/8’’ Diameter Keyed Shaft): 1.52 CID, 13.16 GPM @ 2000 RPM, 3600 Max RPM, 3626 PSI...
- Bailey No. 252157, CHIEF Gear Pumps (5/8’’ Diameter Keyed Shaft), 1.52 CID, 13.16 @ 2000 RPM, 3626 PSI, SAE-12 Inlet Ports, 2-Bolt A Mounting, SAE-10 Outlet Ports, CCW Rotation
No. 10
12V Oil Transfer Pump, 3.2GPM Gear Oil Pump, Lubricant Diesel Engine Scavenge Oil Extractor Pump, Portable Oil...
- Oil Extractor Pump is suitable to transfer lubricants, diesel, kerosene, engine oil, hydraulic oil, gear oil, and other machinery fuels EXCEPT GASOLINE AND PETROLEUM (impurities in the liquid should be no more than 0.1% in volume and smaller than 0.2m in...
- Oil Change Pump boasts a premium pure copper motor and a robust bronze construction, more powerful and stabler with much lower power consumption and reduced noise
- Gear Oil Pump equipped with sturdy rubber mounts, flexible and quick to mount in any position
- Diesel Engine Pump designed for continuous working for no more than 30min, with built-in auto off function in case of over-heat or over-load
- Oil Suction Pump comes with 2x 3/8" FNPT brass thread fittings, easy to remove and replacec
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Last update on 2026-04-16 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Gear Pumps
Choosing the Right Gear Pump
Selecting the ideal gear pump involves considering several critical factors to ensure efficient and reliable operation. Focus on these key areas before making a purchase:- Flow Rate and Pressure: Determine the required flow rate (gallons per minute or liters per minute) and the maximum operating pressure (PSI or bar) for your application. Gear pumps are typically categorized by their displacement per revolution, which directly impacts flow rate at a given speed. Ensure the pump can meet or exceed your system's demands without being oversized, which can lead to inefficiency.
- Fluid Compatibility and Viscosity: The materials of construction for the pump housing, gears, and seals must be compatible with the fluid being pumped to prevent corrosion or degradation. Consider the fluid's viscosity range; gear pumps excel with high-viscosity fluids but may require specific designs or operating speeds for very low-viscosity liquids. Check the manufacturer's specifications for recommended fluid types and viscosity limits.
- Operating Environment and Power Source: Evaluate the environmental conditions where the pump will operate, such as temperature, presence of dust, or corrosive elements. This will influence the required enclosure rating (e.g., IP rating) and material choices. Also, consider the available power source (electric motor, hydraulic motor, etc.) and ensure the pump's shaft and mounting are compatible.
Frequently Asked Questions
What is the difference between external and internal gear pumps?
External gear pumps use two meshing gears rotating in opposite directions, with fluid trapped between the gear teeth and the casing. Internal gear pumps have one gear rotating inside another, with a crescent-shaped divider separating the two. Both are positive displacement pumps suitable for viscous fluids.
How do I determine the correct pump size?
Pump sizing depends on your required flow rate and operating pressure. You'll need to know the viscosity of the fluid you're pumping and the desired speed of operation. Consult pump performance curves provided by manufacturers to match your application's needs.
What maintenance do gear pumps typically require?
Regular maintenance usually involves checking for leaks, monitoring bearing and seal wear, and ensuring proper lubrication if required. Periodic inspection of gear teeth for wear or damage is also recommended. Following the manufacturer's maintenance schedule is crucial for longevity.
Can gear pumps handle abrasive fluids?
Standard gear pumps are not ideal for highly abrasive fluids as the close tolerances between gears can lead to rapid wear. For abrasive applications, specialized gear pumps with hardened materials or alternative pump types like peristaltic or diaphragm pumps may be more suitable.
