CAT 363-3250 Prelubrication Wiring Harness

Product Overview

The CAT 363-3250 Prelubrication Wiring Harness is a genuine Caterpillar OEM electrical wiring harness specifically designed for the machine prelubrication system. It provides secure electrical connections between the Prelube Relay, Prelube Magnetic Switch, Engine Coolant Pump Outlet Temperature Sensor, Main Chassis, and Analog Sensor Return, ensuring reliable communication and power distribution during engine prelubrication operations.

Manufactured to Caterpillar’s exact OEM specifications, the 363-3250 Wiring Harness features heavy-duty 16-gauge wiring, premium sealed connectors, and durable protective insulation designed to withstand vibration, abrasion, moisture, dust, and harsh operating environments. As a direct OEM replacement, it helps maintain proper prelubrication system performance and dependable engine protection.

Key Features

• Genuine Caterpillar OEM Prelubrication Wiring Harness
• Part Number: 363-3250
• Heavy-duty 16 GA electrical wiring harness
• Connects the Prelube Relay to the Prelube Magnetic Switch
• Interfaces with the Engine Coolant Pump Outlet Temperature Sensor
• Supports main chassis and analog sensor return connections
• Provides reliable electrical power and signal transmission
• High-quality OEM sealed connectors for secure connections
• Resistant to vibration, abrasion, moisture, dust, and extreme temperatures
• Helps reduce the risk of electrical shorts and wiring damage
• Factory-engineered for seamless Cat machine integration
• Direct OEM replacement for simplified installation and servicing

Technical Specifications

Application Information

The CAT 363-3250 Prelubrication Wiring Harness is designed to organize and protect multiple electrical circuits while providing dependable power and signal transmission within the engine prelubrication system.

The harness connects:

• Prelube Relay
• Prelube Magnetic Switch
• Engine Coolant Pump Outlet Temperature Sensor
• Main Chassis
• Analog Sensor Return

Its bundled design protects wiring from abrasion, heat, moisture, dust, and vibration while simplifying installation in confined machine compartments. The harness helps maintain proper engine prelubrication operation, improving engine protection during startup and reducing the likelihood of electrical failures.

Compatible Caterpillar Equipment

The CAT 363-3250 Prelubrication Wiring Harness is compatible with the following Caterpillar Off-Highway Trucks:

Off-Highway Trucks

• 793F
• 793F AC
• 793F CMD
• 793F OEM
• 793F XQ
• 794 AC
• 795F
• 795F AC
• 795F XQ
• 797F

Compatibility should always be verified using the machine Product Identification Number (PIN) or serial number before ordering.

Additional Compatibility Information

The 363-3250 Prelubrication Wiring Harness is a configuration-specific electrical component. Before installation, verify:

• Machine model
• Product Identification Number (PIN)
• Machine serial number
• Existing harness part number
• Engine prelubrication system configuration
• Connector type and pin configuration
• Applicable ECM or software configuration (where required)

Changes to the original machine configuration may affect compatibility. Confirmation through Caterpillar parts information or an authorized Cat dealer is recommended.

Benefits

Installing a genuine CAT 363-3250 Prelubrication Wiring Harness helps:

• Ensure reliable engine prelubrication system operation
• Maintain secure electrical communication between prelube components
• Improve engine startup protection
• Reduce the risk of electrical shorts and wiring failures
• Protect wiring from abrasion, heat, moisture, and vibration
• Simplify maintenance with an OEM direct-fit replacement
• Improve machine reliability and reduce downtime
• Ensure OEM-quality fit, durability, and long-term electrical performance