

Pneumatic Oil Pump 3:1 Ratio, Double-Action Air-Operated Transfer Pump
Reliable 3:1 ratio pneumatic oil pump for efficient fluid transfer in automotive and industrial applications. Durable construction, easy maintenance.
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Pneumatic Oil Pump 3:1 Ratio – Professional-Grade Fluid Transfer
This double-action pneumatic oil pump delivers efficient fluid transfer across automotive service bays and industrial maintenance operations. The 3:1 pressure ratio provides balanced performance for standard lubrication applications, making it a practical centerpiece for any shop relying on pneumatic-powered equipment. If your inventory includes multiple ratio requirements, consider complementing this unit with higher-capacity alternatives like 5:1 ratio transfer pumps or single-stage 1:1 pumps for specialized high-volume or low-pressure tasks.
Key Features
- Double-action differential air motor – Leverages air pressure differential for continuous fluid movement without excessive energy consumption
- Broad fluid compatibility – Handles motor oil, synthetic oil, hydraulic oil, gear oil, and automatic transmission fluid
- Rated to 150 SAE – Accommodates standard and premium-grade lubricants across viscosity ranges
- Clamping mechanism – Secures pump to drum or container for stable, hands-free operation
- Included 2-inch bung adapter – Fits standard industrial drum openings; adjustable for quick repositioning
- Brass/bronze construction on wetted components – Resists corrosion from prolonged fluid contact
- Minimal moving parts design – Reduces internal wear, extends pump lifespan, simplifies rebuilds
- Suction strainer screen – Protects pump internals from particulate contamination in bulk oil containers
Business Advantages for Resellers
- Strong margin opportunity – 3:1 pumps occupy a sweet spot in pricing; cost-effective to stock in volume
- Cross-sell potential – Customers upgrading from manual pumping or purchasing multiple service bay equipment often buy these in pairs or alongside higher-ratio models
- Low return/warranty risk – Simple mechanical design means fewer field failures and straightforward customer support
- Essential for oil-change service providers – Every quick-lube, transmission service, and fleet maintenance facility needs transfer pumps; this ratio covers 80% of standard applications
- Compatible retrofit – Existing customer bases running older air systems value the standardized bung adapter and straightforward maintenance protocol
Technical Specifications
| Specification | Detail |
|---|---|
| Pressure Ratio | 3:1 |
| Operation Type | Double-action, air-powered |
| Fluid Compatibility | Motor oil, synthetic oil, hydraulic oil, gear oil, ATF |
| Maximum Viscosity Rating | 150 SAE |
| Adapter Included | 2-inch adjustable bung adapter |
| Wetted Materials | Brass/bronze fittings; rubber gasket seals |
| Intake Protection | Strainer screen |
| Mounting | Drum clamping mechanism |
Why This Pump Matters in Your Shop
The 3:1 ratio balances flow rate with pressure multiplication—ideal for transferring oil from drums into vehicle sumps, transmission pans, and differential housings without requiring auxiliary pressure regulation. The clamping design eliminates the need for dedicated pump stands, reducing shop footprint and setup time. For shops managing mixed-fluid inventories, the broad SAE and oil-type compatibility means a single pump model handles most routine transfers, cutting training time for staff and simplifying parts management.
The included strainer screen prevents contaminated bulk oil from entering customer vehicles—a critical quality-control feature that protects your reputation and reduces comebacks. Long service life and accessible internals mean this pump stays productive across multiple service seasons with minimal downtime.
Stock this pump in depth. It is a workhorse, not a specialty tool, and professional shops reorder transfer pumps as part of planned equipment lifecycle replacement.