030817 Starter Solenoid (12V 3 Terminals) for Hustler Raptor SD SDX Flip-Up FasTrak Zero Turn Lawn Mowers - Solenoid Relay w/ 1 Hole Bracket

030817 Starter Solenoid Relay (12V 3 Terminals)

Key Features

• 12V DC starter solenoid for compatible lawn mower electrical systems.
• Three-terminal configuration: two upper copper studs with 1/4-20 threads and one lower stud with a male 10-32 spade terminal.
• Screw-mount design with a one-hole mounting bracket.
• Screw connector type, copper contact material, and automatic operation.
• Transfers battery power to the starter motor to support engine cranking and startup.
  
• ABS plastic housing, copper terminals, and internal copper windings rated to 180°C.

Replaces / Cross-Reference Part Numbers

• Hustler: 030817
• Trombetta: 832-1211-210
• Bad Boy: 108-5349-00
  
• Ariens: 03057700
• MTD/Cub Cadet: 725-1426, 725-0771
• Murray: 424285
• Snapper: 75671
• Toro: 112-0309
• B&S: 5409H

Compatibility & Fitment

Compatible with many Hustler commercial and residential zero-turn mower models in the following series. Confirm the mower model, existing part number, and three-terminal layout before ordering.

• FasTrak: 933424, 933432, 933440, 934851, 935627, 938704, 938712, 938720, 938738, 938746, 940346, 940353, 940361, 940379
• FasTrak SD: 933481, 933499, 933507, 933841
• Raptor Limited: 934802, 934893, 936492, 936500, 937771, 937862, 938613, 938977
• Raptor: 931741, 931881, 931899, 933069, 933077, 933382, 933937, 934414, 931998US, 932004US, 933408US, 934786, 934505US, 934513US, 934794, 935734, 935742, 935759, 935767US, 935817, 937748, 937755, 937763, 937813, 937847, 937854, 938159, 938167, 938563, 938571, 938589, 938597, 938605, 939165, 939215, 939223, 939389
• Raptor Flip-Up: 933614, 933622, 933846US, 933853US, 934745, 935940, 935957, 935965, 938464, 938472, 940312, 940320, 940387

The listed series also include Raptor SD, Raptor SDX, Raptor Limited, FasTrak SD, and TrimStar applications where the original solenoid matches this three-terminal arrangement. Model fitment can vary by engine and production configuration.

When to Replace

Replace the starter solenoid when the mower has a fully charged battery and a properly operating starter circuit but the starter motor does not receive power. Common symptoms include a click without engine cranking, intermittent starting, or no solenoid response. Corroded terminals, worn internal contacts, ethanol-related equipment deterioration, restricted electrical connections, and loose or damaged wiring can also cause starting problems. Test the battery, grounds, ignition circuit, and wiring before replacing the solenoid.

Installation Tips

• Allow a few minutes for replacement when the mounting hardware and wiring are accessible.
• Disconnect the battery negative (-) terminal and the spark plug wire before service to reduce the risk of accidental starting and short circuits.
• Photograph or label the wires before removal, then match them to the original terminal positions and the mower wiring diagram.
• Verify the replacement has two upper studs and one lower stud with a male spade terminal. Four-terminal versions and other layouts are not compatible with this configuration.
• Use the existing screw-mount location and tighten all electrical connections securely to prevent arcing, voltage loss, or premature failure.
• Prevent reverse polarity and protect exposed copper strands from contacting adjacent terminals. Overload, short circuits, and poor connections can damage the solenoid.