Briggs & Stratton 5105538FS Walk Behind Mower Wiring Harness

The Briggs & Stratton 5105538FS is a genuine OEM replacement wiring harness designed for Ferris walk-behind mowers. This part supersedes the original part number 5105538 and provides a direct, factory-spec fit for proper electrical system restoration.

The wiring harness serves as the central electrical backbone of the mower, routing power and control signals between key components including the ignition switch, safety interlock switches, PTO clutch circuit, and charging system. Using a genuine OEM harness ensures all connector positions, wire gauges, and terminations match the original equipment exactly.

Key Features:

• Genuine OEM Briggs & Stratton replacement part — supersedes part number 5105538
• Engineered to meet original factory specifications for precise fit and function
• Supports ignition, safety interlock, and PTO electrical circuits on walk-behind mower platforms
• Built to resist vibration, moisture, and temperature extremes common in outdoor power equipment environments
• Direct plug-in replacement — no splicing or modification required
• Ensures compliance with original equipment electrical design standards

Restoring your mower's wiring harness with a genuine OEM part helps maintain reliable starting, safe operation of interlock systems, and consistent power delivery throughout the electrical system.