Extend your Mercury engine’s life with this premium OEM STOP SWITCH (M-001373 ML-309361 AND BELOW) (SERIAL 00000000-00009375). Factory-engineered for durability in harsh marine conditions that destroy inferior parts.

Designed and manufactured to Mercury Marine OEM standards, this switch ensures reliable operation across all engine RPM ranges. Part number 91622M is manufactured to exact Mercury Marine factory specifications for precision installation and optimal performance. Constructed from premium marine-grade materials designed to withstand harsh saltwater and freshwater environments.

Cut-rate alternatives might look similar, but they’re not engineered to Mercury’s exacting standards. Part 91622M delivers consistent performance because it’s built right — the same way Mercury does it at the factory.

Compatible Mercury Marine Engines

FITS: 9-40HP MARINER

• Fits MARINER 9-40HP engines
• Compatible HP: 9HP, 15HP, 40HP
• Covers 14 serial number ranges
• Configurations: Outboard
• OEM genuine Mercury Marine part

COMPLETE SERIAL NUMBER COMPATIBILITY:

9HP Models

• 9HP OUTBOARD (Mariner)

15HP Models

• 15HP OUTBOARD (Mariner)

40HP Models

• 40HP OUTBOARD (Mariner)

HP Models

• HP OUTBOARD (Mariner)

Don’t know where your serial number is? Our quick reference guide shows exactly where to find it on Mercury Marine engines.

Verification & Support

Questions about part 91622M? Use our parts finder tool to verify fitment yourself. Prefer to talk to an expert? Use the contact buttons at the bottom of this page to reach our team by text, call, or email

Four decades of marine parts experience. Discount pricing with expert service – shipping daily.