Garrett 781328-0004 G-Series Turbo Speed Sensor Pro Kit (No Gauge)

Vehicle Fitment

• Universal turbocharger accessory - not specific to any vehicle
• Designed for use with Garrett G-Series and compatible turbochargers
• Not compatible with GT or GTX speed sensor ports

Features

• Pro-level turbocharger speed sensor kit for G-Series turbos
• Measures compressor wheel rotational speed for performance monitoring
• Compatible with data loggers and aftermarket engine management systems
• Helps identify optimal operating ranges and avoid overspeeding
• Includes wiring harness and installation hardware
• No gauge included - designed for external data/ECU integration
• Supports tuning and validation of turbo performance
• Helps optimize turbo match and efficiency under load

Specifications

• Brand: Garrett
• Part Number: 781328-0004
• Product Type: Turbocharger speed sensor kit (Pro, no gauge)
• Compatible Turbo Series: G-Series (models with speed sensor port)
• Rotation Measurement: Compressor wheel speed monitoring
• Wiring: Main harness and power/logger pigtail included
• Gauge: Not included (sensor only)
• Application: Performance tuning, monitoring, data logging

Included Components

• 1x Turbocharger speed sensor
• 1x Main wiring harness
• 1x Power/logger pigtail
• 1x Fixing screw and spacer
• Installation instructions

Product Description

The Garrett 781328-0004 G-Series Turbo Speed Sensor Pro Kit is a performance accessory that allows accurate monitoring of compressor wheel rotational speed on Garrett G-Series turbochargers. By capturing real-time shaft speed data, this kit helps tuners, engine builders, and performance enthusiasts validate turbo match, map efficiency characteristics, and avoid potentially damaging overspeed conditions. It's designed for use with turbochargers that provide a dedicated speed sensor port - typical of many G-Series models.

This **universal accessory** is not tied to any particular vehicle model. The Pro kit includes a dedicated sensor, wiring harness, and mounting hardware for straightforward installation, but does **not** include a gauge - instead, it's intended for use with an external data logger, ECU, or dedicated automotive display system. With the right setup, you can use the data from this sensor to optimize boost control, performance tuning, and turbocharger efficiency across a wide range of forced-induction builds.