Gates TL148 Turbocharger Oil Return Line

Turbocharger Oil Drain Line for GM Diesel Applications

The Gates TL148 turbocharger oil drain line is built for oil return service in turbocharger systems where heat and sealing integrity matter. It is an OE Exact replacement designed for direct service on select Chevrolet and GMC trucks and vans, including Silverado 2500 HD, Silverado 3500 HD, Sierra 2500 HD, Sierra 3500 HD, Express 2500, Express 3500, Savana 2500, and Savana 3500 applications.

Gates Turbocharger Oil Line products are part of a focused line for oil supply and drain routing at the turbocharger. This TL148 drain line uses steel construction and a 10.5 in. (267 mm) centerline length to match the original routing and fitment requirements of the vehicle platform.

Key Features

• Turbocharger oil drain line for oil return service
• Steel construction for durability in high-temperature engine bay conditions
• 10.5 in. centerline length, also listed as 267 mm
• OE Exact comparison rating for original-style fit and function
• Includes the turbocharger oil drain line, bolts, nuts, studs, and gaskets
• Direct replacement for select Chevrolet and GMC turbocharger oil line applications

Detailed Description

Gates TL148 is a turbocharger oil drain line engineered to route oil away from the turbocharger and back into the engine system. The steel tube construction helps maintain shape and sealing performance under the elevated temperatures common in turbocharger operation. With OE Exact comparison rating, this part is specified for service work where matching the original line geometry and connection points is important. This part cross-references Dorman - OE Solutions 904-140 for the same application.

Compatible With 2010-2016 Chevrolet Express 2500, 2010-2016 Chevrolet Express 3500, 2011-2016 Chevrolet Silverado 2500 HD, 2011-2016 Chevrolet Silverado 3500 HD, 2010-2016 GMC Savana 2500, 2010-2016 GMC Savana 3500, 2011-2016 GMC Sierra 2500 HD, and 2011-2016 GMC Sierra 3500 HD. If you are replacing a leaking or heat-damaged turbocharger oil return line on a Chevrolet Silverado 2500 HD or GMC Sierra 3500 HD, TL148 provides a direct-fit service part for the listed applications.

Common Issues This Part Can Address

• Oil leakage at the turbocharger drain connection
• Cracked, corroded, or heat-damaged oil return tubing
• Poor sealing at turbocharger oil line joints
• Incorrect line length or routing after prior repairs
• Turbocharger oil drainage problems caused by a worn original line

Installation Notes and Tips

Verify the vehicle’s turbocharger oil line routing and connection points before installation. Inspect the mating surfaces, gaskets, studs, nuts, and bolts for wear or damage, and replace any compromised sealing components during service. Confirm the centerline length and OE-style geometry match the removed part before final tightening.

Quality Assurance

Gates designs turbocharger oil supply and drain lines for oil conveyance to and from the turbocharger, with construction intended to handle the high-temperature environment of the turbo system. The TL148 is an OE Exact replacement part for service applications where original-style fitment is required.