Standard Ignition PS743 Automatic Transmission Oil Pressure Switch

Automatic Transmission Oil Pressure Switch Overview

Standard Ignition PS743 is an automatic transmission oil pressure switch for specific Honda applications with 3rd clutch monitoring. It uses a screw-in mounting style, a female oval connector, and a 2-blade male terminal layout for a direct electrical connection in the transmission circuit.

Compatible with Honda Accord, Odyssey, Civic, Crosstour, Pilot, and Ridgeline applications listed below, this PS743 transmission pressure switch supports accurate pressure signal feedback in the automatic transmission system.

Key Features

• Automatic transmission oil pressure switch for 3rd clutch applications
• Screw-in mounting type for secure installation
• Female oval connector with 1 connector cavity
• 2 male blade terminals for electrical interface
• Black and silver metal finish
• Switch only; wiring is not included
• Standard Ignition PS743 part number for service replacement

Detailed Product Description

Standard Ignition PS743 is built for automatic transmission pressure monitoring in Honda vehicles that use a 3rd clutch oil pressure switch. The metal-bodied construction, oval connector shape, and blade-terminal design support a factory-style replacement for the original transmission switch. This part number is commonly searched as Standard Ignition PS743 and PS743 for Honda Accord, Odyssey, Civic, Crosstour, Pilot, and Ridgeline transmission service.

This part cross-references Rostra Powertrain Controls 50-1174 for the same application.

What This Part Helps Address

• Transmission warning lights related to oil pressure switch faults
• Erratic or missing pressure signal input to the transmission control system
• Diagnostic trouble codes tied to the 3rd clutch pressure switch circuit
• Harsh or inconsistent shift behavior caused by switch signal issues
• Electrical connection problems at the transmission pressure switch

Installation Notes and Tips

Install PS743 in the specified screw-in transmission port and verify the connector matches the female oval configuration before assembly. Inspect the transmission connector, terminals, and sealing surfaces for wear or contamination before installation. Because wiring is not included, reuse or repair the vehicle harness as needed and confirm proper terminal engagement after tightening.

• Fits 2009-2019 Honda Pilot, 3rd Clutch
• Fits 2017-2019 Honda Ridgeline, 3rd Clutch
• Fits 2009-2014 Honda Ridgeline, 3rd Clutch
• Fits 2008-2017 Honda Accord, 3rd Clutch
• Fits 2008-2017 Honda Odyssey, 3rd Clutch
• Fits 2012-2015 Honda Civic, 3rd Clutch
• Fits 2012-2015 Honda Crosstour, 3rd Clutch

Quality Assurance

Standard Ignition is a recognized aftermarket brand for electrical and transmission service parts. PS743 is manufactured with a metal finish and OE-style connector and terminal layout to support consistent fitment in the listed Honda applications.