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Description
593488 Solenoid-Starter — Briggs & Stratton OEM Starter Solenoid
The Briggs & Stratton 593488 Solenoid-Starter is a genuine OEM starter solenoid designed to handle the high-current switch function that delivers power from the battery to the starter motor on compatible Briggs & Stratton small engines. It plays a crucial role in reliable engine starts by engaging the starter system when the key or start switch is activated, making it a common replacement part in lawn mowers, garden tractors, and outdoor power equipment.
Product Details
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Item Number: 593488
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Brand: Briggs & Stratton
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Part Type: Solenoid-Starter / Starter Solenoid
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Design: OEM electrical solenoid for engine starting
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Condition: New Genuine OEM Replacement Part
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Voltage System: Designed for 12 V battery systems
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Typical Dimensions: Approx. 5.65″ × 2.65″ × 2.25″ (size varies by engine)
Function
This starter solenoid is engineered to:
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Act as a high-current relay, transferring battery power to the starter motor
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Engage the engine start circuit when the ignition key is turned
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Ensure reliable, consistent starts under regular use
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Replace worn, pitted, or failed solenoids that cause no-start or intermittent starting issues
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Provide a OEM-matched electrical connection for proper performance
Verify Fitment Before Ordering
Before purchasing, confirm:
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Your equipment uses a 12 V electrical system
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The 593488 starter solenoid matches your engine’s parts diagram
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Mounting points and terminal configuration align with your original solenoid
⚠️ Starter solenoid compatibility varies by model and engine — always verify the correct part number with your engine model/serial or diagram.
Compatibility
This OEM solenoid-starter is commonly used on a range of Briggs & Stratton engines, including many found on:
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44T977 series engines
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499777-0002-G1
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49E777 series engines
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49E877 engine series
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49R977 engine variants
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49T877 and 49V677 engine families
(Models shown are representative — confirm with your specific engine parts lookup to ensure correct fitment.)
Installation / Usage
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Disconnect the battery before working on electrical components.
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Remove old solenoid, noting wire positions and harness details.
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Mount the new 593488 solenoid-starter in place.
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Reconnect wires to corresponding terminals (starter lead, ignition switch feed, ground).
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Reconnect battery and test engine starting function.
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Verify smooth starter engagement and secure connections.
Maintenance Tips
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Check solenoid terminals for corrosion or loose wiring.
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Clean connections to ensure solid electrical contact.
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Inspect battery condition — weak batteries can mimic solenoid failure.
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Replace if clicking or intermittent cranking persists.
Notes / Equivalent Replacements
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Genuine Briggs & Stratton OEM part 593488 ensures proper fit and factory performance compared to aftermarket units.


