Keep an accurate fuel-level reading on your dash with the Agility Auto Parts Fuel Tank Sending Unit 4017093, the LEFT-side unit that drops in as a replacement for a wide range of full-size GM trucks. It fits the 1978-1986 Chevrolet C10, 1982-1986 C20/K10/K20, 1978 and 1982-1986 C30, 1987 R10/V10/V20, 1987-1988 R20/R30/V30, 1989 R2500/R3500, 1989-1991 V3500, plus the matching GMC C1500, C2500, C3500, K1500, K2500, K3500, R1500, R2500, R3500, V1500, V2500, V3500 and 1978 GMC C15 — see the "Vehicles it fits" section for the full list of years and applications.
A fuel tank sending unit uses a float and resistor to measure how much fuel is in the tank and signals your fuel gauge; a worn unit is a common cause of an erratic or stuck fuel gauge.
- Corrosion and leak resistant: built from durable materials for long-lasting service.
- Drop-in replacement: arrives ready to install with the necessary components included.
- OE-level specs: engineered to meet or exceed all OEM specifications.
- Left-side fitment: cataloged in the LEFT position for the listed trucks.
Interchange: SU479 · 25003258 · FG05K
Frequently Asked Questions
What does this fuel tank sending unit do?
It uses a float and resistor to measure the fuel level in the tank and sends that signal to your dash fuel gauge so it reads accurately.
Which vehicles does part 4017093 fit?
It fits many 1978-1991 full-size Chevrolet and GMC trucks, including the Chevrolet C10, C20, C30, K10, K20 and matching GMC C1500 through V3500 models. Check the "Vehicles it fits" section for the full list.
Is this the left or right sending unit?
This unit is cataloged for the LEFT position on the listed trucks. Confirm your vehicle's application before ordering.
What are signs my sending unit may need replacing?
An erratic, stuck, or inaccurate fuel gauge reading can be a sign the sending unit is failing. Diagnose the cause first, since wiring or the gauge can also be involved.
What numbers does this unit interchange with?
It cross-references SU479, 25003258 and FG05K.
