Sierra 18-7946 OMC Fuel Filter Element, 10 Micron
- Brand:
- Sierra
- Part no:
- 18-7946
Image: Sierra
Where to buy
Specifications
- Micron rating
- 10 micron
This is a Sierra replacement fuel filter element rated at 10 micron. It replaces OMC 502905 and Crusader 98041, and the range it belongs to is described as universal and for Johnson/Evinrude. Sierra says regularly changing the fuel filter and its elements is one way to keep an engine running smoothly. Match the part numbers to your existing element before swapping.
Our take
The 10 micron element and its OMC 502905 and Crusader 98041 cross references make this a direct replacement for those two numbers, so matching what is on your engine is the check to make. Sierra's own advice is to change the filter and elements regularly.
From our buying guide
Parker lists Racor's marine Turbine Series for diesel and biodiesel engines, and Racor says gasoline filters in an enclosed location should use a metal bowl. A micron rating means little without its efficiency.
Check before you buy:
- The efficiency is stated with the micron size. Racor labels its finest element 2 micron and rates it at 98% at 4 microns.
- You know your engine's change interval, since intervals are per model.
- You can fit it on the suction side of the fuel transfer pump, where Racor says to install its 900MA and 1000MA, since pumps emulsify water.