Neutral Switch Shift 8M0052939 Fit Mercury 100HP 115HP EFI, 110 Jet (2.5L)
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Neutral Switch Shift for Mercury 100HP 115HP EFI, 110 Jet (2.5L)
This neutral switch shift sensor, part number 8M0052939, detects gear engagement to enable safe engine starting. This neutral switch shift is designed for Mercury outboard engines with 2.5L displacement, including 100HP, 115HP EFI, and 110 Jet models.
Overview
This neutral switch shift is a vital safety component that prevents the starter from engaging when the engine is in gear. The neutral switch shift sends a signal to the ignition system, ensuring the engine can only be started in neutral. This neutral switch shift is a direct replacement for Mercury 100HP and 115HP EFI motors, as well as the 110 Jet drive, all with a 2.5L powerhead.
Built For Performance
- Replaces OEM part number 8M0052939
- Durable construction to withstand harsh marine environments
- Precise switch actuation for consistent performance
- Compact design for easy installation in confined spaces
- Watertight seal to protect internal components from corrosion
Fits These Machines
- for Mercury 100HP (2.5L)
- for Mercury 115HP EFI (2.5L)
- for Mercury 110 Jet (2.5L)
On-The-Job Use
- Enables safe engine startup by verifying neutral gear position
- Replaces a failed neutral safety switch to restore starting reliability
- Supports proper shift interlock function during docking and maneuvering
- Provides peace of mind during routine engine servicing
Specs At A Glance
| Part Number(s) | 8M0052939 |
| Type | Neutral Switch Shift |
| Compatible Brand | for Mercury |
| Engine Displacement | 2.5L |
Good To Know
Q: Is this neutral switch shift compatible with my Mercury 115HP EFI? A: Yes, this switch fits Mercury 115HP EFI outboards with a 2.5L displacement, along with 100HP and 110 Jet models. Confirm your engine's serial number before ordering.
Q: How do I know if my current switch is failing? A: If your engine starts in gear, fails to start at all, or the starter engages unexpectedly, the neutral switch shift may be defective. Replacing it with this part will restore proper safety function.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.