ACDelco FLS1079 GM Original Equipment Fuel Tank Sending Unit Designed with thick wiper contacts and wear pads that provide durability, especially with todays ethanol fuels Design helps eliminate complications due to worn fingers on the sensor wiper arm, sulfur contamination, and failures of wire wound sensors and/or lead sensor kits GM-recommended replacement part for your GM vehicles original factory fuel tank sending unit Offering the quality, reliability, and durability of GM OE Manufactured to GM OE specification for fit, form, and function