New, 5-piece 3/8" fuel gauge tank sending unit package for 1971-74 Plymouth GTX - RoadRunner - Satellite and Dodge Charger with 440 cubic inch and 426 Hemi enginesBecause these cars use a fuel circulation system which sends about 10 times more fuel to the engine then is actually consumed, this sender has the correct 3/8" output to handle the increased flow. Return to the tank is through a 1/4" nipple on the sender. Includes, float, pick-up filter, retainning ring and ground jumper. Unlike the Chinese units available, these are stainless-steel and warranted for 2 years