Description
Sierra 18-5605 Mercury 40–70 HP Outboard Starter
The Sierra 18-5605 is a marine replacement starter for select Mercury and Mariner outboard engines. Current product specifications identify it as a 10-tooth, 12-volt starter that fits 40–50 HP 4-cylinder and 50–70 HP 3-cylinder applications.
Product Details
- Brand: Sierra
- Part Number: 18-5605
- Application: Mercury / Mariner outboards
- Horsepower: 40–50 HP 4-cylinder; 50–70 HP 3-cylinder
- Drive Gear: 10 teeth
- Voltage: 12 VDC
- Rotation: Clockwise/right
- Solenoid: Not attached
- Housing: Aluminum
- Mounting: 2-bolt
- UPC: 747730043937
OEM Interchange
Sierra 18-5605 replaces or interchanges with Mercury Marine numbers including 50-73521, 50-73521T, and 50-898265005. Other listed interchange numbers include Mallory 9-15025 and ARCO 5388.
One important fitment detail: Sierra's catalog specifically lists 18-5605 for 40–50 HP models, while other fitment databases identify additional 50–70 HP 3-cylinder applications. Therefore, the engine model, year, serial number, and original starter number should be verified before ordering.
Specifications
- California Residents:
- WARNING Cancer and Reproductive Harm - P65Warnings.ca.gov
