0778879 Evinrude Johnson HPF Pro 5 Gal | Genuine OEM BRP Outboard Part

🔧 Product Description

Genuine BRP Evinrude HPF Pro High-Performance Gearcase Lubricant - Five US Gallons - Part Number: 0778879

Genuine BRP HPF Pro high-performance marine gearcase lubricant supplied in a five-US-gallon bulk container.

Five US gallons is approximately 18.93 litres.

HPF Pro is formulated for heavily loaded Evinrude and Johnson outboard lower units and is the specified factory-fill gear lubricant for many Evinrude E-TEC gearcases.

Its viscosity, anti-foam additives, friction modifiers and water-handling properties are designed for severe marine operation.

⚙️ Key Features

• Genuine BRP Evinrude HPF Pro gearcase lubricant
• Correct OEM part number 0778879
• Common unprefixed number 778879
• Five US gallons / approximately 18.93 litres
• High-performance marine lower-unit lubricant
• Factory-fill lubricant for applicable Evinrude E-TEC gearcases
• Resists foaming under high-speed gear operation
• Designed to retain lubrication when small amounts of water are present
• Bulk workshop and commercial-service container

🚤 Compatibility

Specified or recommended for selected

• Evinrude E-TEC outboard gearcases
• Evinrude E-TEC G1 lower units
• Johnson and Evinrude high-output two-stroke gearcases
• Standard-rotation lower units
• Counter-rotation lower units
• V4, V6 and high-performance outboard gearcases where HPF Pro is specified
• Marine service workshops performing regular lower-unit oil changes

Important use note

• Confirm lubricant specification in the operator's or service manual.
• Some specialised gearcases may require a different lubricant or servicing procedure.
• Water contamination requires repair of the leaking seals; changing the oil alone is not a permanent correction.

🔌 Function

The lubricant forms a protective film between the forward, reverse and pinion gears, bearings, clutch dog and propeller shaft.

Benefits include

• Reduced gear and bearing wear
• Improved protection under high propeller load
• Resistance to lubricant foaming
• Stable operation at marine gearcase temperatures
• Corrosion protection
• Ability to maintain lubrication when minor moisture is present

Recommended handling

• Use a clean lower-unit filling pump
• Fill from the lower drain opening
• Continue filling until lubricant exits the upper vent
• Install new drain and vent screw seals
• Inspect the magnetic plug
• Pressure- and vacuum-test a leaking gearcase
• Keep the bulk container sealed and free from water
• Do not return drained lubricant to the container
• Store upright in a clean, dry service area

⚠️ Common Signs of Failure

• Oil is milky
• Metal particles are present
• Lubricant smells burnt
• Drain-plug magnet carries excessive debris
• Gearcase whines or growls
• Propeller shaft has movement
• Oil level drops between services
• Pressure or vacuum test fails

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 0508308
• 508308
• 0778751 - Related earlier or packaging reference
• 0778879
• 778879

Related Container Numbers

• 0778755 - 32-ounce / 946ml HPF Pro container
• 0778754 - HPF Pro filling kit
• 0778878 - 16-gallon bulk container

Aftermarket / Verified Equivalents

• No direct aftermarket equivalent

Lubricant-substitution warning

• HPF Pro is a proprietary marine gearcase lubricant and does not have a simple automotive GL-rating interchange.
• Do not substitute automotive axle oil solely because its viscosity appears similar.
• Use another marine gear lubricant only when the exact engine or gearcase service information permits it.

📦 Condition

• Genuine BRP Evinrude OEM lubricant
• Brand new sealed five-gallon container
• Total volume approximately 18.93 litres
• Heavy bulk item
• Supplied in genuine or equivalent protective packaging