This genuine Briggs & Stratton starter solenoid (OEM No. 846820) is a high-reliability switching unit for the starting circuit on small petrol engines. Built with a durable metal housing and heavy-duty internal contacts, it controls high current from the battery to the starter motor for quick, consistent cranking. It is engineered for Briggs & Stratton 18 HP (approx. 13.4 kW) engines, including models 356447-3087-G1 and 356447-3075-G1. Suitable for a wide range of construction and garden machinery powered by compatible B&S engines, it helps restore dependable starts and reduces downtime. Designed as a direct replacement for the original unit, it fits neatly into the existing electrical system with standard fixings and wiring, supporting everyday use in demanding conditions.

Key Features:
– Genuine Briggs & Stratton part for assured fit and function (OEM No. 846820)
– Durable construction for long service life in outdoor and workshop environments
– Consistent engagement to deliver reliable cold and hot starts
– Direct replacement for the factory solenoid to simplify maintenance
– Compatible with selected 18 HP (approx. 13.4 kW) B&S engine models
– Stable electrical performance to minimise voltage drop to the starter motor
– Straightforward installation using existing wiring and mounting points
– Suitable for regular maintenance schedules and preventative replacements
– Supports frequent start/stop cycles typical of professional and DIY use
– Helps protect the starter switch by handling high inrush current

Typical Applications:
Commonly used on equipment powered by compatible Briggs & Stratton engines, such as ride-on mowers, lawn tractors, zero-turn mowers, garden machinery, and light construction tools. Ideal for landscaping, grounds maintenance, facilities management, and general hire fleet servicing where reliable starting is essential.

Also known as:
Starter relay, engine start solenoid, starter contactor, magnetic starter switch, starter motor relay, starting solenoid.

Fits Models:
356447-3075-G1 18HP (approx. 13.4 kW)
356447-3077-G1 18HP (approx. 13.4 kW)
356447-3079-G1 18HP (approx. 13.4 kW)
356447-3087-G1 18HP (approx. 13.4 kW)

Alternate Part Numbers:
846820, BS846820

Product Specifications