Product Overview
The Performance Tool W1143 Drill Pump is designed for efficient fluid transfer tasks, seamlessly integrating with your corded or cordless drills. It features corrosion-resistant materials and self-priming functionality, making it ideal for diverse liquid transfer applications. This pump delivers impressive performance with a minimum drill speed of 1200 RPM, generating a water lift of 3.28 feet and a flow rate of 225 gallons per hour (3.75 GPM).

Figure 1: Performance Tool W1143 Liquid Transfer Pump. This image shows the main unit of the drill pump, highlighting its compact design and the clear "IN" and "OUT" labels for hose connections.

Figure 2: Key features of the W1143 Drill Pump, including its self-priming capability with a corrosion-resistant 1/4" shank, suitability for medium to low viscosity liquids, and standard garden hose sized threads.
Safety Information
Always read and understand all safety warnings and instructions before operating this product. Failure to follow the warnings and instructions may result in electric shock, fire, and/or serious injury.
- Do not pump flammable liquids such as gasoline or solvents.
- Ensure proper ventilation when operating in enclosed spaces.
- Wear appropriate personal protective equipment (PPE), such as safety glasses and gloves, to prevent contact with transferred liquids.
- Keep children and bystanders away from the operating area.
- Disconnect the drill from its power source (unplug or remove battery) before making any adjustments, connecting/disconnecting hoses, or cleaning the pump.
- Do not run the pump dry for extended periods, as this can cause damage.
Package Contents
Verify that all items listed below are included in your package:
- 1 x Performance Tool W1143 Liquid Transfer Pump
Specifications
| Feature | Detail |
|---|---|
| Brand | Performance Tool |
| Model | W1143 |
| Power Source | Drill-driven (Hand Power) |
| Minimum Drill Speed | 1200 RPM |
| Maximum Flow Rate | 3.75 Gallons Per Minute (225 GPH) |
| Maximum Lifting Height | 3.28 Feet |
| Hose Diameter | 3/4-Inch Max (Standard garden hose threads) |
| Shaft Material | Corrosion-Resistant 1/4" Shank |
| Dimensions (L x W x H) | 0.6"L x 6.8"W x 10.3"H |
| Item Weight | 0.26 Pounds (approx. 4.2 ounces) |
Setup
- Prepare Your Drill: Ensure your corded or cordless drill is in good working condition and has a minimum speed capability of 1200 RPM.
- Attach the Pump: Insert the pump's 1/4-inch shaft into the chuck of your drill. Tighten the chuck securely to prevent slippage during operation. Ensure the pump is oriented so the drill rotation matches the arrow on the pump for the desired flow direction.

Figure 3: Proper attachment of the drill pump to a cordless drill. The image shows hands securely holding the drill and pump assembly, ready for operation.
- Connect Hoses: Attach standard 3/4-inch garden hoses to the "IN" and "OUT" ports of the pump. Ensure all connections are tight to prevent leaks and maintain prime.
- Position for Pumping: Place the "IN" hose into the liquid source you wish to transfer. Direct the "OUT" hose to the desired destination. For optimal performance, keep the inlet hose as short as possible and minimize vertical lift on the suction side.
Operating Instructions
- Prime the Pump: While the pump is self-priming, for faster and more reliable operation, especially with longer inlet hoses or higher lifts, you can pre-fill the inlet hose with the liquid to be transferred.
- Start the Drill: With the pump and hoses properly connected and positioned, begin operating your drill. Gradually increase the drill speed to at least 1200 RPM. The pump will start to draw liquid.
- Monitor Flow: Observe the liquid flow from the outlet hose. The pump is designed for medium to low viscosity liquids.
- Direction of Flow: Ensure the drill rotation matches the indicated direction on the pump (usually clockwise for most drills) for proper operation. The pump has clear "IN" and "OUT" markings with directional arrows.
- Stop Operation: Once the transfer is complete or the liquid source is depleted, turn off the drill.

Figure 4: Operational parameters and ideal uses for the W1143 Drill Pump. It requires 1,200-2,800 RPM from an electric drill and is ideal for draining aquariums, car engine motor oil, tankless water heaters, and similar applications.
Maintenance
- Cleaning: After each use, especially when transferring non-water liquids, flush the pump with clean water to prevent residue buildup and corrosion. This helps prolong the pump's lifespan.
- Storage: Store the pump in a clean, dry place away from direct sunlight and extreme temperatures.
- Inspection: Periodically inspect the pump for any signs of wear, damage, or blockages. Ensure the shaft spins freely and the hose connections are intact.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Pump not priming or low flow |
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| Pump making noise but no flow |
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| Liquid leaking from connections |
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Warranty and Support
For warranty information or technical support regarding your Performance Tool W1143 Liquid Transfer Pump, please contact Performance Tool directly. Refer to the product packaging or the official Performance Tool website for the most current contact details and warranty terms.
Manufacturer: Wilmar
Brand Store: Visit the Performance Tool Store on Amazon
