Sierra 18-7945 Fuel Filter, 10 Micron, Long
- Brand:
- Sierra
- Part no:
- 18-7945
Image: Sierra
Where to buy
Specifications
- Micron rating
- 10 micron
This Sierra 18-7945 is a replacement fuel filter in Sierra's Mercury and Yamaha range. It is cross-referenced to Mercury 35-802893Q and Yamaha ABB-FUELF-IL-TR, so those are the numbers to check against what is on the engine. The filter is rated at 10 micron and is the long type, 4.35 inches in length. Match that length and rating against the element you are replacing.
Our take
A 10 micron rating on a 4.35 inch long body is the pair of figures that identify this filter, and the cross references to Mercury 35-802893Q and Yamaha ABB-FUELF-IL-TR give the part numbers to compare with the one on your engine.
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.

