Description
Mercury 8M0166540 Water Separating Fuel Filter Kit 450R 500R V12 500-600HP
The Mercury 8M0166540 water separating fuel filter kit is designed for select Mercury Racing 450R and 500R outboards plus Mercury V12 500-600HP Verado and SeaPro outboards. This kit helps protect your engine from moisture and other fuel contaminants that can reduce performance. It includes the core filtration and mounting components needed for supported applications, along with a water-in-fuel sensor and extension harness for fuel system service or replacement.
Applications
Fits Mercury Racing 4.6L V8 450R outboards, serial number 1E083006 through 1E099720.
Fits Mercury Racing 4.6L V8 500R outboards, serial number 1E099432 and up.
Fits Mercury V12 500-600HP Verado and SeaPro outboards, serial number 3B0600047 and up.
The supplied application field lists 500-600HP Verado, while the supplied bullet and short description also include SeaPro fitment.
Shipping
Ships as one Mercury 8M0166540 water separating fuel filter kit.
Key Facts
Brand: Mercury Precision
Part Number: 8M0166540
Product Type: Water Separating Fuel Filter Kit
Application Family: Mercury Racing 450R and 500R plus Mercury V12 Verado and SeaPro outboards
450R Fitment: 4.6L V8, serial number 1E083006 - 1E099720
500R Fitment: 4.6L V8, serial number 1E099432 and up
V12 Fitment: 500-600HP Verado and SeaPro, serial number 3B0600047 and up
Included Sensor: Water-in-fuel sensor
Compliance: Designed to meet U.S. Coast Guard and ABYC H-24 fuel system requirements and CFR 183.90 or ISO 10088 fire test
Function: Helps remove moisture and fuel contaminants
Country of Origin: US
What’s Included
Included: Fuel filter
Included: Filter base
Included: Water-in-fuel sensor
Included: Fittings
Included: Plug
Included: Fuel filter extension harness
Service Notes
The supplied fitment fields are not fully aligned. The application field lists 500-600HP Verado, while the supplied bullet and short description also include V12 SeaPro applications.
Verify exact fitment by engine family, horsepower, and serial number before ordering.
UPC: 678633129919
Packaged Length: 10.6 in.
Packaged Width: 5.95 in.
Packaged Height: 5.65 in.
Packaged Weight: 3.372 lbs.





