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Fuel Pump and Sending Unit Assembly, 1998-on Workhorse Chassis, 5.7L, 350 c.i. Gas Engines. The filler on this sending unit extends to side. It comes with a replacement 4-wire pigtail harness with 5" blunt cut wires. If you need the complete 2 foot harness that extends from the sending unit and has OE round socket connector for the vehicle side, then order 81-824 (splicing will be required)
This sending unit fits in a 3-3/4" diameter hole. The overall diameter of the top flange is approx. 4-1/2" in diameter.