









| Feature | Detail | Importance |
| Type | Spin-On Fuel Water Separator Filter | Simple installation onto the filter head/base. |
| Micron Rating | 10 Micron | This is a fine filtration level, critical for protecting modern fuel injectors and carburetors from small particulate contaminants. |
| Thread Size | 1" - 12 (UNF) | Specifies the size and pitch of the threads used to screw the filter onto the engine mount or remote filter head. |
| Function | Removes Water and Contaminants | It uses specialized media to trap dirt, rust, and debris, and separate free water from the gasoline, preventing water from reaching the engine. |
| Fuel Type | Primarily for Gasoline (Petrol) engines. | |
| Flow Rate | Commonly rated for up to 90 GPH (Gallons Per Hour). |
This filter is widely used on various marine engines, particularly those using a remote-mounted filter head.
MerCruiser: Many stern drive applications.
Mercury: Various outboard and inboard models that utilize a separate, remote fuel/water separating filter housing.
OMC: Used on many Johnson/Evinrude applications.
Sierra: 18-7920
Racor: S3214
OMC/BRP: 771839
Fram: CH33APL
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| Brand | Unbranded |
|---|---|
| Manufacturer Part Number | 35-809099 |
| Similar Fits Number | 771839, 35809099, S3214 |
| Country/Region of Manufacture | Taiwan |
| Type | Spin-On Fuel Water Separator Filter |
| Micron Rating | 10 Micron |
| Mercury/Quicksilver Part Number | 35-809099 |
| Johnson Evinrude OMC | 771839 |

