Sierra 18-7944 OMC Fuel Filter Element, 10 Micron, Short 3.875"
- Brand:
- Sierra
- Part no:
- 18-7944
Image: Sierra
Where to buy
Specifications
- Micron rating
- 10 micron
- Replacement elements
- Short 3.875" universal element
This is Sierra's 18-7944 replacement fuel filter element for OMC and Johnson/Evinrude engines. It is the short universal type, 3.875 inches long, with a 10 micron rating. Sierra lists it alongside other OMC-style elements, including a 20 micron version and a longer 6 inch high capacity Yamaha element. The maker backs its filters with a full warranty and has been in marine parts for over 35 years.
Our take
A 10 micron rating means this element catches finer particles than the 20 micron element Sierra offers in the same range. At 3.875 inches it is the short universal length, so check the length against your housing before you buy.
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.