Sierra Solenoid 18-5803, Replaces F177917, for Force Outboard Motors

The Sierra Solenoid 18-5803 is a replacement solenoid engineered for Force outboard motors, designed as a direct equivalent to the OEM part it replaces. Solenoids like this one act as the electrical switch that sends high-current power to the starter motor when the ignition key or start button is engaged, allowing a low-current signal to trigger a much larger current draw safely. When a solenoid fails, the starter may not engage at all, may click without turning over, or may run intermittently, so replacing it with a properly matched part is essential to restoring reliable starting.

The Sierra 18-5803 is built to match the fit, function, and electrical specifications of the original Force component it replaces, making installation straightforward for anyone replacing a worn or failed unit. It is sold as a standalone component, keeping the replacement focused and cost-effective compared to purchasing a full starter or ignition assembly.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-5803
• Product Type: Solenoid
• Application: Force outboard motors
• Weight: 0.71 pounds
• UPC: 030999237293
• OEM Cross Reference: F177917

Fitment

Designed for Force outboard motors.

Replaces (OEM)

• F177917

Frequently Asked Questions

What does the Sierra 18-5803 solenoid do? The Sierra 18-5803 is a solenoid that acts as an electrical switch, using a low-current signal from the ignition to route high-current power to the starter motor on a Force outboard motor.

What OEM part number does the Sierra 18-5803 replace? Solenoid 18-5803 replaces OEM part number F177917.

Is the Sierra 18-5803 solenoid a genuine OEM part or aftermarket? The 18-5803 is a Sierra-branded aftermarket solenoid manufactured as a direct replacement for OEM part F177917, not an OEM-branded part.

How much does the Sierra 18-5803 solenoid weigh? The 18-5803 solenoid weighs 0.71 pounds.

What outboard motors is the 18-5803 solenoid designed for? This solenoid is designed for Force outboard motors, matching the original F177917 component it replaces.

What are signs that this solenoid needs to be replaced? A failing solenoid on a Force outboard commonly causes the starter to not engage, a single click with no cranking, or intermittent starting, all of which point to replacing the unit with a matched part like the Sierra 18-5803.

Does the Sierra 18-5803 include mounting hardware or wiring? The 18-5803 is sold as the solenoid component itself, matched to the fit and function of OEM part F177917.

Can I look up the Sierra 18-5803 solenoid by its UPC? Yes, the Sierra 18-5803 solenoid carries UPC 030999237293.

Is the Sierra 18-5803 a direct swap for the original Force solenoid? Yes, the 18-5803 is built as a direct replacement for OEM number F177917, so it installs in place of the original Force solenoid.

What is the difference between the Sierra 18-5803 and other Sierra Force solenoids like 18-5835? The 18-5803 replaces OEM number F177917, while a related Sierra part such as 18-5835 replaces different OEM numbers and is specified for early model 35-150 HP Force motors; buyers should match their original OEM number to select the correct solenoid.