Briggs & Stratton Starter Solenoid OEM Direct-Fit — Black 3.15 in, Replaces 691656

Briggs & Stratton 691656 starter solenoid is a genuine OEM replacement part designed to restore reliable starter engagement on compatible small gasoline engines.

This compact starter solenoid from Briggs & Stratton is built to the manufacturer's specifications to ensure correct fit and electrical connection for many lawn and garden engines. As a direct-replacement component, it replaces legacy numbers including 691656, 555375GS, and 790951, making it a convenient swap for routine starter-system repairs. Using an original equipment manufacturer (OEM) solenoid reduces guesswork at installation and helps maintain the intended performance characteristics of your Briggs & Stratton engine.

How does this solenoid restore starter function?

The solenoid acts as an electrically controlled switch that connects the starter motor to the battery when you turn the ignition. When the ignition key or switch sends a signal, the solenoid closes the high-current circuit so the starter spins; when the signal ends, it opens the circuit to protect the electrical system. Replacing a worn or failed solenoid typically returns reliable starting without replacing the starter or wiring.

• Direct OEM fit to Briggs & Stratton starter mounts and terminals
• Factory-specified electrical contacts to ensure consistent engagement
• Designed to work with existing starter motor and battery connections

What engines and part numbers does it replace?

This unit is listed as Briggs & Stratton part 691656 and is manufactured to supersede older or alternative references. It replaces multiple legacy numbers so you can match it to your engine’s parts list or service manual. Confirm compatibility by comparing part numbers and terminal layout before installing.

• Primary part number: Briggs & Stratton 691656
• Also replaces: 555375GS, 790951, and legacy 807829
• Fits many small-engine applications specified by Briggs & Stratton

How do I install the starter solenoid safely?

Installation is straightforward for someone familiar with small-engine service but always begin by disconnecting the battery to prevent shorts. Remove the old solenoid, transfer any mounting hardware and connectors, then secure the replacement and reconnect wiring to the matching terminals. If in doubt, consult the engine manual or a certified technician to verify torque and wiring positions.

• Disconnect battery negative before removal
• Match terminal layout and wire color or labels
• Secure mounting and verify solid electrical connections

What are the physical and quality features of this part?

Built by Briggs & Stratton, the solenoid is a compact black unit approximately 3.15 inches in its primary dimension and made to OEM tolerances. It arrives as a new, unused component and includes the factory housing and terminals needed for a clean swap. Using an OEM replacement helps preserve manufacturer design standards for electrical load and durability.

• New genuine Briggs & Stratton part, not aftermarket
• Durable housing and factory electrical terminals
• Approximate length/primary dimension: 3.15 inches

Who is this for: This starter solenoid is intended for owners, repair shops, and maintenance professionals who service Briggs & Stratton small engines and need a direct OEM replacement for aging or failed solenoids. It's suitable for do-it-yourself lawn and garden equipment repair when you want a factory-specified part that matches original fit and function. If you prefer verified parts and straightforward replacement steps, this Briggs & Stratton 691656 solenoid is designed to get your starting system back to reliable operation.