OER Parts offers a wide selection of Fuel Level Sending Units for your 1979 Plymouth Trailduster. OER Parts offers 1979 Plymouth Trailduster 0-90 Ohm Fuel Sending Unit, 1979 Plymouth Trailduster 0-30 Ohm Fuel Sending Unit, 1979 Plymouth Trailduster Auto Meter Universal Fuel Tank Sending Unit, 1979 Plymouth Trailduster Fuel Tank Sending Unit Float, 1979 Plymouth Trailduster Classic Instruments Internal Float Fuel Sending Unit, 1979 Plymouth Trailduster OE Fuel Level Sending Units, 1979 Plymouth Trailduster Fuel Sender Lock Ring, 1979 Plymouth Trailduster Fuel Sender Lock Ring Rubber Gasket, and 1979 Plymouth Trailduster Fuel Tank Sending Unit Lock Ring Tool.