Standard Ignition PS679 Automatic Transmission Oil Pressure Switch

Automatic Transmission Oil Pressure Switch for Ram and Dodge

The Standard Ignition PS679 automatic transmission oil pressure switch is a direct-fit OE replacement for vehicles that need accurate transmission oil pressure signal feedback on the dashboard. Built with high-quality transducers and electro-mechanical components, it is made to restore proper switch operation in demanding service conditions.

Compatible with 2003-2017 Ram 3500 and Dodge Ram 3500 applications, including 2011-2012 Ram 3500 and 2007-2010 Dodge Ram 3500 with 1/4 inch pipe thread, this PS679 replacement supports reliable oil pressure monitoring.

• Direct-fit OE replacement for automatic transmission oil pressure sensing
• Uses a 1-terminal, bullet-style connection
• Helps restore accurate oil pressure readings on the instrument cluster
• Built with durable transducer and electro-mechanical components
• Designed for Ram 3500 and Dodge Ram 3500 fitment across multiple model years

Detailed Product Overview

Standard Ignition PS679 is an automatic transmission oil pressure switch engineered to replace a worn or faulty original unit. By restoring the signal sent to the dashboard, it helps the driver monitor transmission oil pressure more accurately. This part cross-references Pioneer Automotive Industries 501169 for the same application.

Fits 2013-2017 Ram 3500, N/A. Fits 2011-2012 Ram 3500, N/A, w/ 1/4 Inch Pipe Thread. Fits 2007-2010 Dodge Ram 3500, N/A, w/ 1/4 Inch Pipe Thread. Fits 2003-2006 Dodge Ram 3500, N/A.

Common Issues This Part May Address

• Inaccurate transmission oil pressure readings on the dashboard
• Faulty or intermittent oil pressure switch signal
• Warning light or gauge behavior related to transmission pressure monitoring
• Electrical connection problems at the switch terminal
• Wear-related failure in the original transmission pressure switch

Installation Notes and Tips

Verify the terminal style and thread specification before installation. This PS679 uses a single bullet terminal, and select Ram 3500 and Dodge Ram 3500 applications require a 1/4 inch pipe thread. Confirm the vehicle year, make, model, and transmission configuration against the fitment listing before replacement.

Quality Assurance

Standard Ignition builds this switch with robust materials and carefully selected components to meet the demands of professional service use. The design process focuses on durability, performance, and accurate oil pressure signal output for dependable operation.