Standard Ignition SC349 Automatic Transmission Output Shaft Speed Sensor

Automatic Transmission Output Shaft Speed Sensor

Standard Ignition SC349 is an automatic transmission output shaft speed sensor built for direct-fit service on select Mazda applications. It uses a bolt-mount design with a rectangular plug-in connector and a male terminal layout for straightforward replacement of the original sensor.

Compatible with 2000-2001 Mazda MPV and 2001-2002 Mazda Millenia, this SC349 sensor supports accurate transmission speed signal input for vehicles that rely on output shaft speed data. The silver-finish housing includes a mounting bracket and a single mounting hole for OE-style placement.

Key Features

• Automatic transmission output shaft speed sensor for transmission speed signal monitoring
• Bolt-mount attachment with included mounting bracket
• Rectangular plug-in connector with 2 male blade terminals
• Silver finish housing
• No wiring harness included
• Standard Ignition SC349 direct replacement part

Detailed Description

Standard Ignition SC349 is engineered for Mazda MPV and Mazda Millenia applications that use an automatic transmission output shaft speed sensor. The sensor mounts with a bolt-on design and connects through a single male rectangular plug, helping restore the transmission signal needed by the control system. If you are replacing a worn or failed SC349-style sensor, this part provides the correct connector style, terminal configuration, and mounting layout for the listed vehicles.

This part cross-references FU2B21550 and SN7284 for the same application. Standard Ignition SC349 is also referenced by SU6283 and VSS884 in interchange listings.

What It Helps Address

• Erratic or missing transmission output speed signal
• Transmission-related warning lights tied to speed sensor faults
• Harsh or inconsistent shift behavior caused by incorrect speed input
• Diagnostic trouble codes related to output shaft speed sensing
• Failure from a damaged or worn original sensor assembly

Installation Notes and Tips

Verify connector shape, terminal count, and bolt-mount location before installation. Inspect the transmission connector and surrounding harness for corrosion, bent terminals, or fluid contamination before installing the new sensor. Because no wiring harness is included, reuse the existing vehicle harness connection and confirm a secure plug-in fit.

Fits 2000-2001 Mazda MPV and 2001-2002 Mazda Millenia, matching the listed transmission sensor application.

Quality Assurance

Standard Ignition is a recognized aftermarket brand for electrical and engine management components. SC349 is built to match the listed fitment and connector requirements for the specified Mazda applications.