[Lifetime Warranty] 12V Starter Solenoid Relay 89-817109A3 89-817109A2 89-817109A1
12V starter solenoid relay with copper terminals and mounting base for marine engines.
12V starter solenoid relay 89-817109A3 shown in a promotional graphic with mechanics working on a car engine.
Infographic showing construction details of 12V starter solenoid relay 89-817109A3 including housing, terminals, and coil.
Multi-angle view of 12V starter solenoid relay 89-817109A3 showing terminal posts and mounting base.
12V starter solenoid relay for Mercury and Force outboard motors against a boat background.
Wiring diagram for 12V starter solenoid relay 89-817109A3 showing terminal connections for starter, battery, and switch.
12V starter solenoid relay 89-817109A3 shown in a lifestyle marketing graphic for marine use.
12V starter solenoid relay with copper terminals and mounting base for marine engines.
12V starter solenoid relay 89-817109A3 shown in a promotional graphic with mechanics working on a car engine.
Infographic showing construction details of 12V starter solenoid relay 89-817109A3 including housing, terminals, and coil.
Multi-angle view of 12V starter solenoid relay 89-817109A3 showing terminal posts and mounting base.
12V starter solenoid relay for Mercury and Force outboard motors against a boat background.
Wiring diagram for 12V starter solenoid relay 89-817109A3 showing terminal connections for starter, battery, and switch.
12V starter solenoid relay 89-817109A3 shown in a lifestyle marketing graphic for marine use.
Lifetime Warranty

[Lifetime Warranty] 12V Starter Solenoid Relay 89-817109A3 89-817109A2 89-817109A1

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12V Starter Solenoid Relay 89-817109A3 89-817109A2 89-817109A1

Key Features

  • Voltage: 12V
  • Function: Relays electrical current from the battery to the starter motor upon ignition.
  • Terminal Configuration: 4-post design for secure electrical connections.
  • Construction: Engineered for marine environments.

Replaces / Cross-Reference Part Numbers

  • Mercury Marine: 89-817109A1, 89-817109A2, 89-817109A3, 87-803632T, 89-F460917-1
  • Sierra: 18-5834, 18-3835
  • Arco: SW109
  • Arrowhead: SMR6010
  • J&N: 240-22131
  • WAI: 67-731

Compatibility & Fitment

  • Fits a wide range of Mercury, Mariner, and Force outboard engines.
  • Commonly used on models from 40 HP to 250 HP, including V-series engines.
  • Direct replacement for the listed OEM and aftermarket part numbers. Verify your specific part number before ordering.

When to Replace

  • A single, audible click is heard but the starter motor does not engage.
  • No sound or action from the starter system when the ignition key is turned.
  • The starter motor continues to run after the ignition key is released.
  • Intermittent or unreliable engine starting.

Installation Tips

  • Disconnect the battery's negative terminal before beginning work.
  • Photograph or label all wire connections on the old solenoid before removal.
  • Clean all cable terminals and mounting points to ensure a solid electrical connection.
  • Ensure the new solenoid is securely mounted to its original location.
  • Reconnect wires to the correct terminals and tighten all nuts securely.

Compatibility & Fitment

    Product image 1
    Product image 2
    • Fixing Symptoms

      Fixing Symptoms

      Hard to start the engine | Clicking sound but no cranking | Slow or weak cranking of the starter motor | Intermittent operation, etc
    • Premium Quality

      Premium Quality

      Made of high-grade materials and fine craftsmanship to provide exceptional durability for long-time use
    • Saving Solution

      Saving Solution

      Enjoy our great-value package with all you need to optimize electrical systems - BlueStars brings DIY solutions to help you deal with any trouble
    • Simple Installation

      Simple Installation

      Please prepare a nut driver set in advance and wear work gloves to ensure safety. Do not overtighten the nut/terminal during installation.
    WIDE APPLICATION

    WIDE APPLICATION

    - Mercury 40 50 75 90 120 V135 V225 V250 V150 V175 V200
    WORK LIKE A CHARM

    WORK LIKE A CHARM

    Well-crafted housing and strong Copper-Cadmium inner coil & contacts ensure your solenoid operates safely in any harsh environment and can withstand high current
    EXCEPTIONAL PARTS, REMARKABLE JOURNEY

    EXCEPTIONAL PARTS, REMARKABLE JOURNEY

    Enjoy your seamless journey with the support of our replacement parts.
    Brand Model Number
    Force 40 50 1996-1999 SN E138600 - E369299
    Force 75 90 120 1996-1999 SN E183600 & Newer
    Mercury 65 Jet SN OG127500 & Newer
    Mercury 75 90 3cyl SN OG127500 & Newer, 75 90 115 3cyl Optimax SN OT801000 & Newer, 75 90 115 4stroke EFI SN 1B366823 & Newer
    Mercury 80 Jet SN OD283222 & Newer
    Mercury 100 4cyl with 5/16-18 terminals SN OB209468 - OD283221, 100 115 125 4cyl SN OD283222 & Newer, 105 Jet V-6 with rubber mount solenoid SN OD082000 - OG303045, 105 Jet V-6 SN OG303046 & Newer
    Mercury 115 4cyl with 5/16-18 starter terminals SN OC100000 - OD283221

    FAQ

    This solenoid is compatible with a wide range of Mercury Marine and Force Marine outboard engines. It fits Mercury models including 40, 50, 65, 75, 80, 90, 100, 105, 115, 125, 135, 150, 175, 200, 225, and 250 HP, as well as Force Marine 40, 50, 75, 90, and 120 HP engines.
    This unit directly replaces Mercury OEM part numbers 89-817109A1, 89-817109A2, and 89-817109A3. It also cross-references with several common industry part numbers, including Sierra 18-5834, Arco SW109, Arrowhead SMR6010, J&N 240-22131, and WAI 67-731.
    If you turn the key and hear a single 'click' but the engine does not crank, or if you hear a rapid 'chattering' sound, the solenoid is likely failing. Other signs include intermittent starting issues where the engine starts sometimes but not others, or a situation where the starter motor continues to run even after the key is released.
    Replacing the solenoid is a straightforward task that typically takes 15 to 30 minutes. You will generally need a basic socket set and a wrench to disconnect the battery cables and the solenoid terminals. Always disconnect the negative battery cable before beginning to prevent accidental shorting.
    Before installing the new part, inspect your battery cables for corrosion or fraying. A weak battery or poor electrical connections are often mistaken for a bad solenoid. Ensure the mounting surface is clean and that the wiring connections are tight and free of oxidation to ensure proper current flow.