Sierra Starter Outboard - SIE-18-55506

Sierra 18-55506 Outboard Starter

Sierra replacement outboard starter for Mercury Outboards.

Features:

Superior connection between the solenoid and the commutator brushes

Updated planetary gear and clutch gear spring to maximize life span and reliability

Updated solenoid design provides optimum performance by utilizing higher quality materials

New solenoid also offers an increased battery terminal length for easier installation

Seals are strategically integrated to reduce opportunities for water intrusion

Interchangeable With:

Mercury Marine

50-8M0088064

50-8M0137769

50-8M0166297

Frequently Asked Questions

• What is the Sierra 18-55506 Outboard Starter used for? The Sierra 18-55506 is a replacement outboard starter for Mercury Outboards. It features an updated planetary gear, clutch gear spring, and solenoid design intended to support starter life, reliability, and performance.
• What features does the Sierra 18-55506 Outboard Starter have? The Sierra 18-55506 features a connection between the solenoid and commutator brushes, an updated planetary gear and clutch gear spring, and an updated solenoid using higher quality materials. It also has an increased battery terminal length and strategically integrated seals.
• How does the Sierra 18-55506 starter design help with installation? The updated solenoid has an increased battery terminal length, which is designed to make installation easier. The starter also uses strategically integrated seals to reduce opportunities for water intrusion.
• What Mercury Marine part numbers are interchangeable with the Sierra 18-55506? The Sierra 18-55506 Outboard Starter is interchangeable with Mercury Marine part numbers 50-8M0088064, 50-8M0137769, and 50-8M0166297. Compare your existing starter or part number with these listed numbers to help verify compatibility.
• Is the Sierra 18-55506 a replacement starter for Mercury Outboards? Yes. The Sierra 18-55506 is identified as a replacement outboard starter for Mercury Outboards. The product description does not provide specific Mercury engine models, horsepower ranges, or years, so those details should be verified before ordering.
• What should I verify before ordering the Sierra 18-55506 Outboard Starter? Verify your Mercury Outboard application and compare the existing starter or part number with the listed Mercury Marine numbers: 50-8M0088064, 50-8M0137769, and 50-8M0166297. The supplied product description does not include specific engine model, horsepower, year, or serial-number fitment information.