Keystone TNKFG88B Fuel Sending Unit 1965-66 GM Full Size 3/8 Inch Line

The Keystone TNKFG88B is a replacement fuel tank sending unit designed for 1965-1966 GM full-size passenger vehicles with 3/8 inch fuel line applications. This essential component measures the fuel level in your gas tank and communicates that information to your dashboard fuel gauge, ensuring you always know how much fuel remains.

Key Features:

• Direct replacement for 1965-1966 GM full-size vehicles
• Features 3/8 inch outlet fuel line connection
• Compatible with factory 0-90 ohm fuel gauges
• Includes float assembly with pickup tube and strainer
• Uses variable resistance technology to accurately measure fuel levels

The fuel sending unit operates through a float mechanism attached to a metal arm connected to a variable resistor. As fuel levels rise and fall, the float moves the resistor arm, changing electrical resistance to provide accurate readings to your fuel gauge. This unit is designed to match OEM specifications for proper fit and reliable performance in classic GM applications.