Description
Mercury Switch, Oil Pressure for 25hp Mercury 4-Stroke EFI Outboard 8M0163139
This Mercury oil pressure switch is a direct replacement part used on select Mercury outboard applications, including 25hp 4-stroke EFI models. Use part number 8M0163139 to match your existing component for proper fit and function.
Applications
Mercury Outboard: 25hp 4-stroke EFI (verify compatibility by part number and engine serial range)
Shipping & Returns
Orders ship from Wakeboss with careful packaging.
Returns are subject to our policy: /policies/refund-policy
Key Facts
Brand: Mercury
Part Number: 8M0163139
Part Type: Oil pressure switch
What’s Included
Oil Pressure Switch: 1x Mercury oil pressure switch (8M0163139)
Service Notes
Confirm your engine fitment by matching part number 8M0163139 to your current switch or your engine’s parts lookup before ordering.
If replacing due to an oil pressure warning or intermittent readings, inspect the wiring connector and surrounding harness condition during installation.