Dorman 924-978 Shift Interlock Solenoid

Dorman 924-978 Shift Interlock Solenoid

Dorman 924-978 is a shift interlock solenoid for vehicles equipped with the listed shifter assembly applications. It is built to match the original solenoid’s fit and function, with a black plastic housing and a 5-terminal female connector for direct replacement service.

Key Features

• OE-style replacement shift interlock solenoid for the shifter assembly
• Black plastic housing with a rectangular female connector
• 1 connector, 5 terminals, and 2 mounting holes
• Mounts with screws; mounting hardware is not included
• Designed for durable, reliable operation in transmission shift interlock service
• Cross-references GM 88967140 for the same application

Detailed Description

This Dorman shift interlock solenoid is engineered for vehicles that use an electronically controlled shifter lockout system. It is a direct-fit replacement for the original unit on applications such as the Chevrolet Trailblazer, GMC Envoy, and Hummer H3, helping restore proper shifter release operation when the factory solenoid wears out or fails. Part number 924-978 is built to match the original fit and function while maintaining the connector style, mounting layout, and housing design needed for service replacement.

Compatible With 2002-2009 Chevrolet Trailblazer, 2002-2006 Chevrolet Trailblazer EXT, 2003-2006 Chevrolet SSR, 2002-2009 GMC Envoy, 2002-2006 GMC Envoy XL, 2004-2005 GMC Envoy XUV, 2003-2009 Hummer H2, 2006-2010 Hummer H3, 2009-2010 Hummer H3T, 2005-2009 Saab 9-7x, 2004-2007 Buick Rainier, and 2002-2004 Oldsmobile Bravada. Use Dorman 924-978 when replacing a failed shift interlock solenoid in these shifter assembly applications.

What It Helps Fix

• Shifter locked in Park or difficult to release
• Intermittent or inoperative shift interlock operation
• Failure of the original solenoid inside the shifter assembly
• Electrical connector or terminal wear at the solenoid connection
• Restoration of normal shift-lock release function after component failure

Installation Notes and Tips

Install at the shifter assembly using the existing screw mounting points. Verify the connector style, terminal count, and mounting hole layout before installation. Because mounting hardware and wiring harness are not included, reuse serviceable original components as needed. Confirm vehicle application by year, make, and model before ordering; Dorman 924-978 is listed for the specific GM and Saab applications shown above.

Quality Assurance

Dorman designs this shift interlock solenoid as a replacement for the original part on specified vehicles, with attention to fit, function, and durability for reliable service.