Gates TL304 Turbocharger Oil Return Line - Turbocharger To Pipe

Turbocharger Oil Return Line Overview

The Gates TL304 turbocharger oil return line routes oil away from the turbocharger with an OE exact steel design. It is built for direct replacement service on select Chevrolet Silverado HD and GMC Sierra HD diesel applications.

• OE exact replacement for proper fit and routing
• Steel construction for durability in turbocharger service
• Bolt-on inlet and outlet fittings for straightforward connection
• Engineered for oil drain flow in high-temperature turbo systems

Fitment Details

Fits 2017-2021 Chevrolet Silverado 2500 HD, turbocharger to pipe. Fits 2017-2021 Chevrolet Silverado 3500 HD, turbocharger to pipe. Fits 2017-2021 GMC Sierra 2500 HD, turbocharger to pipe. Fits 2017-2021 GMC Sierra 3500 HD, turbocharger to pipe. Fits 2023 GMC Sierra 2500 HD, turbocharger to pipe. Fits 2023 GMC Sierra 3500 HD, turbocharger to pipe.

What This Part Helps Address

• Oil seepage at the turbocharger drain connection
• Heat-related wear in the turbo oil return path
• Improper routing or fitment from a damaged line
• Connection issues at the turbocharger-to-pipe interface

Installation Notes and Tips

Verify the turbocharger-to-pipe routing and compare the original line before installation. The TL304 uses bolt-on fittings and an OE exact layout, so matching the existing configuration is important for correct sealing and alignment. This part cross-references GM OE numbers 12642428 and 12694534 for the same application.

Quality Assurance

Gates designs turbocharger oil supply and drain lines for oil conveyance in demanding turbocharger systems. The TL304 is built to handle elevated temperatures and help maintain leak-resistant operation.