Description
Product Overview
The GPI 3/4 inch 10 micron fuel filter adapter is engineered for demanding fuel handling environments. Constructed from machined metal, the adapter provides superior durability compared with plastic counterparts, resisting corrosion from diesel, biodiesel blends and occasional moisture. The included 10 micron particulate filter captures fine contaminants, protecting fuel injectors and pump components. With a 3/4‑inch NPT male thread and a 4‑inch pipe nipple, the unit integrates seamlessly into existing fuel lines, whether on a passenger vehicle, light‑truck or stationary transfer system. The modern design balances form and function, offering a compact footprint while maintaining high flow capacity.
Usage
This adapter is ideal for electric fuel transfer pumps, gravity‑feed dispensers and above‑ground storage tanks. It excels in day‑use tank applications, farm equipment refueling stations, and fleet maintenance facilities where clean fuel is critical. The spin‑on filter design enables rapid replacement without tools, minimizing downtime during routine service. Target users include automotive technicians, diesel engine owners, and operators of portable fuel transfer units who require a dependable filtration solution that handles diesel and biodiesel blends up to B20.

Why Choose Us
GPI’s reputation for performance parts ensures that each adapter meets strict quality standards. The machined aluminum (or metal) construction provides a leak‑free seal and long‑term resistance to vibration and temperature fluctuations. Each unit undergoes rigorous testing for flow rate, pressure drop, and filtration efficiency, delivering consistent performance across a wide range of operating conditions. Our commitment to customer satisfaction is reflected in a 4.8‑star rating from over 30 verified buyers, highlighting reliability and ease of installation.
Key Features
- 10 micron particulate filter captures fine contaminants for engine protection
- Durable machined metal body resists corrosion and mechanical stress
- 3/4‑inch NPT male thread with 4‑inch pipe nipple for versatile installation
- Spin‑on design enables tool‑free filter replacement, reducing service time
- Compatible with diesel and biodiesel blends up to B20, suitable for passenger cars, trucks and fuel transfer equipment
FAQ
What fuel types can this adapter be used with?
The adapter works with standard diesel fuel and biodiesel blends up to B20, making it suitable for most on‑road and off‑road diesel engines.
How often should the 10 micron filter be replaced?
Replacement intervals depend on fuel quality and usage, but a general guideline is every 6,000 to 10,000 miles or every 12 months for stationary applications.
Is any special tool required for installation?
No special tools are needed. The filter spins on by hand, and the adapter threads onto standard 3/4‑inch NPT fittings using a wrench if desired for a tighter seal.
Can this adapter be used on gasoline engines?
It is specifically designed for diesel and biodiesel systems; using it on gasoline engines is not recommended due to differing filtration requirements.
What warranty does GPI provide?
GPI offers a one‑year limited warranty covering manufacturing defects, ensuring you receive a reliable product backed by the manufacturer.






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