2019-23 Silverado Sierra 1500 3.0L Duramax Fuel Injector Return Pipe OEM

This is a Genuine GM OEM Fuel Injector Fuel Return Pipe for 2019–2023 Chevrolet Silverado 1500 and GMC Sierra 1500 trucks equipped with the 3.0L I6 Turbo Diesel (LM2 Duramax) engine, as well as 2021–2023 Cadillac Escalade and Escalade ESV models with the same diesel powertrain. It is the low-pressure return pipe routing fuel back from the injectors on the fuel injector rail assembly — not a high-pressure feed pipe.

This is a Genuine GM part manufactured to OEM specifications for a direct, no-modification-required fit. Compatible with the 10-speed 10L80 automatic transmission. OEM data specifies fitment for Crew Cab Pickup body style on the Silverado 1500 and Sierra 1500. Diesel fuel system application only — this part is not compatible with gasoline-powered variants of these vehicles.

Quick Part Facts

• Condition: New OEM Genuine GM
• Part Type: Fuel Injector Fuel Return Pipe
• Engine: 3.0L I6 Turbo Diesel (LM2 Duramax)
• Transmission: 10-Speed Automatic (10L80)
• Body Style (truck applications): Crew Cab Pickup
• Application: Diesel fuel system only — not for gasoline engines
• Function: Low-pressure fuel return from injector rail (not a high-pressure feed pipe)

Fitment