Johnson Pump 12V Oil Change Gear Pump Kit (80-47508-01)

The Johnson Pump Oil Change Gear Pump Kit - 12V 80-47508-01 is a professional-grade, reversible oil change system designed to make routine engine maintenance clean, fast, and effortless. By utilizing a high-torque GP3-1 gear pump, this kit allows you to pump old, viscous oil out of the engine and fresh oil back in with the simple flip of a switch, eliminating the mess of manual gravity drains and hand pumps.

High-Torque Gear Technology

Unlike centrifugal or diaphragm pumps, the gear pump design is specifically engineered to handle thick, high-viscosity fluids like motor oil and transmission fluid. The precision-machined gears create a powerful vacuum that can pull cold or warm oil through narrow dipstick tubes. The reversible switch integrated into the motor housing provides total control, allowing you to empty a crankcase and refill it from a bulk container using the same tool.

Key Features:

• Reversible Operation: A built-in three-position switch (On-Off-On) allows for both "Drain" and "Fill" functions without swapping hoses.

• Self-Priming Capability: The gear pump is naturally self-priming, meaning it can pull oil from the bottom of the engine even if the pump is mounted higher than the oil level.

• Durable Gear Design: Features robust brass gears and a powder-coated motor housing for long-term durability in a marine or workshop environment.

• Complete Kit: Includes a 12V DC pump, battery clips for easy power connection, and a suction probe/hose kit designed to fit standard dipstick tubes.

• Compact and Portable: Small enough to be permanently mounted in an engine room or kept in a tool bag for portable use across multiple vessels or vehicles.

• High Efficiency: Capable of moving oil at a consistent rate, significantly reducing the time required for maintenance on large-displacement engines.

Technical Specifications:

• Model Number: 80-47508-01

• Pump Type: GP3-1 Gear Pump

• Voltage: 12V DC

• Amperage: 5.0 Amps

• Fuse Size: 8 Amps

• Flow Rate: ~2.1 GPM (8 L/min) for water (rate varies by oil viscosity)

• Ports: 3/8" BSP with 1/2" (13mm) hose adapters

• Body Material: Brass

Why Choose the Johnson Oil Change Kit?

The Johnson Pump Oil Change Gear Pump Kit - 12V 80-47508-01 is the preferred choice for boaters with inboard engines where the oil pan drain plug is often inaccessible. By using the dipstick tube as the extraction point, you avoid the risk of stripping drain plug threads or spilling oil into the bilge. The gear pump’s ability to "push" and "pull" makes it a versatile utility tool for changing oil in engines, transmissions, and even outdrives.

Maintenance Tip:

For the fastest results, run your engine for a few minutes to warm the oil before starting the change. Warm oil has a lower viscosity (it's thinner), which allows the pump to work faster and ensures that more contaminants are suspended in the oil and removed from the engine.

Port connection: Outlet: 14 mm (0.551") hose Inlet: 8 mm (0.315") hose
Self priming: Up to 1 m (3.28 feet)
Capacity: 8 l/min (2.11 GPM)
Dimension: 140 x 80 mm (5.51" x 3.15")
Weight: 1.1 kg
Fuse size 12V: 8 A
Manufacturer : Johnson Pump
Manufacturer Part No : 80-47508-01
UPC : 729321916448