Part Number: 5711
Category: Pressure Washer Parts → Pump Maintenance → Pump Oil & Lubricants
Type: Crankcase Oil – 5 Gallon Twin Pack (2 x 2.5 Gallons)

The Crankcase Oil Twin Pack (Part #5711) is a genuine OEM lubricant manufactured by CAT Pumps for use in compatible high-pressure pump systems. This twin-pack includes two (2) 2.5-gallon containers, providing a combined 5 gallons of premium crankcase oil for scheduled maintenance, large-scale service operations, and fleet equipment management.

Key Features & Benefits

• Genuine OEM CAT Pumps crankcase oil
• Part Number: 5711
• Manufactured by CAT Pumps
• Twin-pack includes two 2.5-gallon containers
• Total combined volume of 5 gallons
• Helps reduce friction and internal component wear
• Promotes smooth, efficient pump operation
• Supports extended pump service life
• Ideal for routine preventive maintenance
• Perfect for commercial, industrial, and fleet maintenance applications

Technical Specifications

Part Number: 5711

Product Type: Crankcase Oil / Pump Lubricant

Manufacturer: CAT Pumps

Package Configuration: Twin Pack

Quantity: 2 Containers

Container Size: 2.5 Gallons Each

Total Volume: 5 Gallons

OEM Replacement: Yes

Compatible Applications

Designed for use in compatible CAT Pumps high-pressure pump systems requiring crankcase oil, including:

• Commercial pressure washers
• Industrial pressure washing equipment
• High-pressure pump maintenance
• Preventive maintenance programs
• Equipment service departments
• Fleet maintenance operations
• Industrial cleaning systems

Always verify the manufacturer's lubricant specification before use.

Function of CAT Pumps Crankcase Oil

Crankcase Oil helps:

• Lubricate internal pump components
• Reduce friction during operation
• Protect bearings, seals, and moving parts
• Minimize wear under high-pressure conditions
• Promote cooler operating temperatures
• Extend overall pump life
• Maintain reliable pump performance

Using genuine OEM crankcase oil helps ensure maximum protection while maintaining the performance standards specified by CAT Pumps.

Common Signs Pump Oil Should Be Replaced

Replace crankcase oil according to the equipment manufacturer's recommended maintenance schedule or if you notice:

• Dark or contaminated oil
• Milky or water-contaminated lubricant
• Metal particles in the oil
• Reduced pump performance
• Increased operating temperature
• Excessive pump noise
• Oil that has exceeded its recommended service interval

Routine oil changes help maximize pump performance while reducing the risk of premature component failure.

Installation & Service Notes

• Shut down the equipment and relieve all system pressure.
• Allow the pump to cool before servicing.
• Drain the existing crankcase oil completely.
• Refill with the recommended amount of genuine CAT Pumps Crankcase Oil.
• Verify the oil level according to the pump manufacturer's specifications.
• Dispose of used oil in accordance with local environmental regulations.

Important: Always use the lubricant specified by the equipment manufacturer. Following recommended maintenance intervals helps maximize pump performance, reliability, and service life.

Maintenance Recommendations

• Check crankcase oil level regularly.
• Replace oil at the manufacturer's recommended service intervals.
• Inspect oil for contamination during routine maintenance.
• Address leaks promptly to prevent lubricant loss.
• Use only genuine CAT Pumps crankcase oil or the manufacturer-approved equivalent to ensure optimum pump protection and long-term performance.