"NOS MoPar fuel tank sending unit. Package PN is 4240277 which includes the complete sending unit, gasket, and filter. Fits all 76-80 models with mid-mounted plastic fuel tank. This tank was situated along with the frame rail under the bed (driver's side). Usually 18-20 gallon. The sending unit mounts from the top, hangs down vertically.

Also listed as a replacement for # 4049131"