Only at the fuel pump is the blue flex line female connection 3/8. At the fuel pump, the blue flex line is 3/8 to accomodate the 3/8 barb coming out of the in tank fuel pump. Then the fuel line turns into steel line. The steel line turns back into blue flex line at the inline fuel filter but this blue flex line is 5/16. Ford reduces the blue supply line from 3/8 to 5/16 at the inline fuel filter. That is why the barbs coming out of the fuel filter are 5/16. We are no longer at 3/8. Sneaky Ford engineering!!!!!!!!!!!!

FRAM G3850 High-Performance Replacement Inline Fuel Filter for Optimal Engine Protection, 5/6" Universal Gas Fuel Filter Replacement for Select Ford, Mazda, Mercury, and Winnebago Model Years

FRAM G3850 High-Performance Replacement Inline Fuel Filter for Optimal Engine Protection, 5/6" Universal Gas Fuel Filter Replacement for Select Ford, Mazda, Mercury, and Winnebago Model Years

Q: Will it a 95 ford f150 4.9

Yes and works like a champ. Good luck.

Q: 99 f250 5.4 super duty

Yes this will fit 99 f250 super duty with 5.4 engine

Q: Will fit a Mazda B3000 1997 automatic?

Yes G3850 is the correct in-line fuel filter part number for a 1997 Mazda B3000.

Product ID: 7974727

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Details

Brand
Fram
Product Grade
Replacement
Outer Material
Metal
Vehicle Service Type
Passenger Car
Item Weight
6.08 ounces

⛽5/6" universal fit

♻️reduces emissions & boosts fuel efficiency

🛡️OEM-grade engine protection

Frequently Bought Together

FRAM G3850 High Performance Replacement In-Line Fuel Filter for Optimal Engine Protection, Fits Select Ford, Mazda, Mercury and Winnebago Model Years

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Motorcraft FL-820-S Oil Filter

Description

⛽ Power your ride with precision and protection—because your engine deserves the best!

EFFORTLESS INSTALLATION - Machined metal exterior and inline style make upgrading your fuel system quick and hassle-free.
ECO FRIENDLY DRIVE UPGRADE - Cuts harmful emissions while enhancing fuel efficiency—drive cleaner, drive smarter.
ENGINE LONGEVITY GUARANTEED - OEM-quality filtration that extends engine life and demands annual replacement for optimal results.
CLEAN FUEL PEAK PERFORMANCE - Removes rust, dirt, and debris before fuel hits your engine for flawless combustion.
UNIVERSAL FIT ULTIMATE FLEXIBILITY - Designed to fit select Ford, Mazda, Mercury, and Winnebago models with a 5/6" inline design.

The FRAM G3850 High-Performance Inline Fuel Filter delivers universal 5/6" compatibility for select vehicles, ensuring cleaner fuel flow by filtering out rust, dirt, and debris. Engineered to meet OEM standards, it enhances combustion efficiency, reduces emissions, and extends engine life with a durable machined metal design. Ideal for fuel injection and oxygenated fuel systems, this filter is a must-have annual upgrade for professional-grade engine protection.

Specifications

Brand	Fram
Product Grade	Replacement Parts, Performance Parts
Outer Material	Metal
Vehicle Service Type	Passenger Car
Item Weight	6.08 ounces
Style	In-Line
Global Trade Identification Number	00009100351043, 00009100353177
Manufacturer	FRAM
Automotive Fit Type	Universal Fit
OEM Part Number	G3850
UPC	009100353177 009100351043
Model	G3850
Item Weight	6.1 ounces
Product Dimensions	3.54 x 8.7 x 4.61 inches
Item model number	G3850
Is Discontinued By Manufacturer	No
Exterior	Machined
Manufacturer Part Number	G3850

Have a Question? See What Others Asked

connection size ???

Will it a 95 ford f150 4.9

99 f250 5.4 super duty

Will fit a Mazda B3000 1997 automatic?

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