What does a starter solenoid do on a marine engine?

The starter solenoid acts as a high-current switch that sends power from the battery to the starter motor. If it fails, the engine may not crank or may start intermittently, even if the battery is fully charged.

What are the symptoms of a bad starter solenoid?

Common symptoms include clicking sounds when turning the key, no engine crank, intermittent starting, or burned wiring terminals. Corrosion and heat damage are frequent causes in marine environments.

Do you check wiring when replacing the starter solenoid?

Yes. With every solenoid replacement we check the power cables, grounds, terminals and ignition wiring, and test the voltage drop while cranking. Any wiring repair we find is quoted before we do it.

Can faulty wiring damage a new starter solenoid?

Yes. Loose connections, corrosion or undersized cables can cause voltage drop and overheating, which may damage a new solenoid. That's why we check the wiring during replacement.

Is this service available dockside or in the marina?

Yes. We work at your boat from Marina del Rey to Newport Beach, and most solenoid replacements and wiring checks are done at the dock without hauling the boat. A trip fee by distance applies and is shown on your written estimate.

Do you use marine-grade parts for solenoid replacement?

Yes. We install marine-grade, ignition-protected starter solenoids built to resist corrosion, vibration and moisture, and seal the connections with adhesive heat-shrink. Automotive solenoids are not ignition protected and are never used on a gasoline boat.

Do you provide a warranty on solenoid replacement and wiring work?

Yes. Starter solenoids carry their manufacturer's warranty, and our labor and wiring work are warranted for 90 days from the invoice date.

Professional marine technician using a multimeter to test voltage

Professional marine technician using a multimeter to test voltage (2)

Starter Solenoid Replacement & Wiring Check

Hear a "click" but the engine won't turn over? Your starter solenoid might be the culprit. We diagnose boat starter issues, replace faulty solenoids, and repair corroded wiring so your engine starts reliably.

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$150 /hr

Labor estimate Usually 1–2 hours

Book sends us a ticket; nothing is charged online. Before any work you get a written estimate for labor, parts and the trip fee, and nothing is done without your OK.

Trip fee By distance, one way: $30 in San Pedro, $50 in Long Beach

San Pedro$30
Wilmington, Terminal Island$40
Long Beach: Shoreline, Rainbow Harbor$50
Long Beach Marina, Alamitos Bay$60
Redondo Beach$60
Seal Beach, Huntington Harbour$75
Marina del Rey$85
Newport Beach$110

Farther away: $25 plus $2.50 a mile, one way from our San Pedro shop. No trip fee when the boat comes to our shop, or for plan members. The work of a visit is at least $150; the trip fee is on top.

Registered in California: Breeze Marine Boat Service LLC, San Pedro
Where we work: At your slip from Marina del Rey to Newport Beach, or in our San Pedro shop
Questions first: (213) 693-0224 or submit a ticket

About this service

Click. Click. Vroom.

Reliable
Starts.

Hearing a "click" instead of a roar? It might not be the starter motor. Our boat electrical repair covers diagnosing and repairing solenoids and wiring to get you back on the water.

Solenoid vs. Starter

The solenoid acts as the switch that delivers power to the starter. Often, the expensive starter motor is fine, and a starter solenoid replacement (this small, affordable switch) is all that is needed.

The "Green" Enemy

Battery cable corrosion (green copper corrosion inside the cables) increases resistance. We inspect cable ends to check that full voltage actually reaches the engine.