Standard Ignition SC554 Automatic Transmission Output Shaft Speed Sensor

Automatic Transmission Output Shaft Speed Sensor

Standard Ignition SC554 is a new automatic transmission output shaft speed sensor built as an OE replacement for select Mazda, Subaru, Scion, and Toyota applications. It uses a bolt-mount design with a female oval plug-in connector and two blade terminals for a direct-style electrical connection.

Compatible With 2004-2011 Mazda RX-8, 2006-2025 Mazda MX-5 Miata, 2013-2016 Scion FR-S, 2013-2017 Subaru BRZ, and 2017-2020 Toyota 86. Standard Ignition SC554 is built for vehicles that rely on accurate transmission output shaft speed input for drivability and shifting control.

Key Features

• OE replacement automatic transmission output shaft speed sensor
• Bolt-mount attachment with one mounting hole
• Female oval plug-in connector
• Two blade terminals, no wiring harness included
• Black finish
• New sensor construction
• Standard Ignition SC554 cross-references to SJ01215H2, SN8256, SU00303838, SU14014, and VSS1088 for the same application

Detailed Description

This transmission speed sensor monitors output shaft speed so the control system can interpret transmission behavior accurately. Standard Ignition SC554 is an OE-style replacement built with a bolt-mount body, no harness, and a female connector layout that matches the listed applications. It is a direct-fit service part for Mazda MX-5 Miata, Mazda RX-8, Subaru BRZ, Scion FR-S, and Toyota 86 models covered by the fitment data.

Use SC554 when servicing a transmission speed signal concern on vehicles that require a replacement output shaft speed sensor with the same connector style and mounting configuration. The part number SC554 is also useful when searching for a Standard Ignition replacement for Mazda MX-5 Miata and related rear-wheel-drive sport compact applications.

What It Is Used For

• Restoring output shaft speed signal accuracy
• Addressing transmission-related warning lights tied to speed sensor input
• Correcting shifting concerns caused by an erratic speed signal
• Replacing a damaged sensor connector or worn sensor body
• Servicing OE-style transmission electronics on Mazda, Subaru, Scion, and Toyota applications

Installation Notes and Tips

Verify connector shape, terminal style, and bolt-mount location before installation. SC554 is supplied without a harness, dust shield, mounting bracket, or mounting hardware, so reuse only the vehicle components that are in serviceable condition. Confirm the transmission application against the vehicle’s original sensor configuration before final assembly.

Quality Assurance

Standard Ignition SC554 is a new OE replacement sensor from a brand known for electrical and engine management service parts. It is built to match the listed fitment and connector requirements for the specified Mazda, Subaru, Scion, and Toyota applications.