



💧 Keep your engine running clean and mean—don’t let water slow your flow!
The Teleflex 18-7944 Fuel Water Separator Filter offers superior 10 micron filtration with over 90% efficiency in removing water and particulates from ethanol-blended fuels. Featuring a universal fit and a high flow rate of 90 GPH, it ensures optimal performance for all horsepower engines. Trusted by professionals and backed by a 4.8-star rating, this durable metal filter is the go-to choice for reliable watercraft fuel system protection.



| ASIN | B001F0MACK |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #48,982 in Automotive ( See Top 100 in Automotive ) #278 in Automotive Replacement Fuel Filters |
| Brand | Sierra |
| Customer Reviews | 4.8 4.8 out of 5 stars (675) |
| Date First Available | June 8, 2005 |
| Exterior | Machined |
| Global Trade Identification Number | 00808282201852 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 13 ounces |
| Item model number | 18-7944 |
| Manufacturer | Teleflex Marine |
| Manufacturer Part Number | 18-7944 |
| Model | Fuel Water Separator Filter |
| OEM Part Number | MERCURY MARINE 35-807172 |
| Outer Material | Metal |
| Product Dimensions | 0.39 x 0.39 x 0.39 inches |
| Product Grade | new |
| Style | Regular |
| UPC | 808282201852 |
| Vehicle Service Type | watercraft |
M**J
Always reliable
Industry standard. Does what it’s supposed to at a fair price.
T**J
Good Quality
Easy to install. Fit was perfect. I like Sierra filter quality for the money. I will definitely buy this filter again.
C**I
Great filters
I have always used these on all of my boats. They seem to be made of great quality, I have never had any problems with the paint peeling off of the out side of the filter if the fuel get on it during the installation. before selling my last boat, they had been installed for roughly a year, and were still holding up very well. I was surprised that they still looked so good after being in a boat with a wet hull (inboard motors that the shaft seals drip to cool them underway), that sat in the marina year round. When I sold my last boat, these filters had roughly 80 hours of run time on them, and were used in a system with twin 5.7L MPI captains choice crusader motors. I have recently installed these on a boat that I have just purchased. This current boat is a Glacier Bay 2680 with twin Yamaha outboard motors. I have about 15 hours on them since they were installed, and the motors run great, and don't seem to have any issues pulling fuel through these.
A**R
The quality of the material
The quality looks good
K**A
👍
👍
J**C
Nice part!
Nice part, reasonable price. Good coating and gasket. Think it will work well!
M**R
Works as described!
It would be nice to see a drain port in the bottom of the filter, easy to drain if bad gas is detected. Thanks
G**O
Good filter
Good filter for replacement .
M**E
Fits and works as an oem replacement on a mercruiser i/o
H**.
Fit on the mount perfectly and works as it should. No complaints
A**R
The filter was exactly as what i wanted. Good price and fast delivery. Recommend the vendor.
J**G
Easy order good product , right to the door ...
J**H
The price of these things is getting out of control. The separation of fuel and water can be done in a glass cup. These filters do work well but the price seems to go up every year.
Trustpilot
2 weeks ago
1 month ago