Sierra 18-5629 Outboard Starter, Replaces OEM 586278 and 393354, Fits 20-35 HP Evinrude/Johnson Outboards

The Sierra 18-5629 is a 12 volt DC outboard starter built as a direct replacement for Evinrude/Johnson outboard engines. It is engineered to meet or exceed the performance of the original equipment starters it replaces, 586278 and 393354, making it a reliable option when the factory starter has failed or worn out. The housing is constructed of metal for durability in the marine environment, and the unit is finished in white. This starter serves a range of Evinrude/Johnson outboard applications spanning 20 HP through 35 HP across several model-year windows, so it is important to confirm the horsepower and model year of your outboard against the fitment listed below before ordering. The starter delivers 1.4 KW of output and is sold as the starter motor itself; the corresponding solenoid (18-5655) and drive (18-5697) for these applications are separate part numbers. At 5.34 pounds, it is sized and weighted consistent with a small outboard starter motor. Whether you are replacing a seized starter, restoring an older outboard, or doing routine maintenance, the 18-5629 is built to Sierra's standard for OEM-equivalent form, fit, and function.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-5629
• Product Type: Outboard Starter
• Voltage: 12 Volts (DC)
• Wattage: 1.4 KW
• Material: Metal
• Color: White
• Weight: 5.34 pounds
• Item Dimensions: 9 x 4.75 x 5 inches
• UPC: 747730044156
• OEM Cross Reference: 586278, 393354

Fitment

• 20 HP Evinrude/Johnson outboards, 1985-88
• 20 thru 30 HP Evinrude/Johnson outboards, 1993-98
• 25 thru 35 HP Evinrude/Johnson outboards, 1977-88

Replaces (OEM)

• 586278
• 393354

Frequently Asked Questions

What horsepower Evinrude/Johnson outboards does the Sierra 18-5629 starter fit? The Sierra 18-5629 outboard starter fits 20 HP outboards from 1985-88, 20 thru 30 HP outboards from 1993-98, and 25 thru 35 HP outboards from 1977-88.

Which OEM part numbers does the 18-5629 replace? It replaces Evinrude/Johnson OEM starters 586278 and 393354.

What voltage is the 18-5629 starter? 12 Volts DC, with an output of 1.4 KW.

What is the 18-5629 starter made of? The Sierra 18-5629 outboard starter has a metal housing and is finished in white.

How much does the Sierra 18-5629 starter weigh? 5.34 pounds, which is worth factoring in for shipping and installation planning.

Will the 18-5629 fit a 1990 model year 20 HP Evinrude outboard? No. The 18-5629 covers 20 HP model years 1985-88 and separately 1993-98, so a 1990 20 HP outboard falls outside both listed ranges - confirm your exact model year before ordering.

Is the 18-5629 a genuine Sierra part or an aftermarket equivalent? It is a Sierra-manufactured replacement starter, built to meet or exceed the performance of the original 586278 and 393354 starters it replaces.

What are the dimensions of the 18-5629 starter? The starter measures approximately 9 x 4.75 x 5 inches.

Does the 18-5629 include the solenoid? No, the 18-5629 is the starter motor only. The solenoid (18-5655) and drive (18-5697) for these applications are sold as separate part numbers.

Is the same starter used across the 20 HP through 35 HP range? Yes, the Sierra 18-5629 is common across 20 HP (1985-88), 20 thru 30 HP (1993-98), and 25 thru 35 HP (1977-88) Evinrude/Johnson outboards.

What is the UPC for the Sierra 18-5629 starter? The UPC is 747730044156.

How many amps or watts does the 18-5629 starter draw? The 18-5629 outboard starter is rated at 1.4 KW on a 12 Volt DC system.