Perrin ASM-GAU-102 Oil Temp & Pressure Adapter for Subaru WRX/BRZ/Forester AWD

Vehicle Fitment

• 2015-2025 Subaru WRX (VA/VB, AWD)
• 2013-2025 Subaru BRZ (ZC6/ZD8, RWD)
• 2013-2016 Scion FR-S (ZN6, RWD)
• 2017-2021 Toyota 86 (ZN6, RWD)
• 2022-2025 Toyota GR86 (ZN8, RWD)
• 2013-2025 Subaru Crosstrek (AWD)
• 2013-2025 Subaru Forester (AWD)
• 2013-2018 Subaru Forester XT (AWD)
• 2013-2025 Subaru Impreza (AWD)
• 2013-2025 Subaru Legacy (AWD)
• 2020-2025 Subaru Legacy XT (AWD)
• 2013-2025 Subaru Outback (AWD)
• 2020-2025 Subaru Outback XT (AWD)

Fitment Notes

• Installs at the oil galley plug location - not a sandwich/oil filter adapter
• Raised design ensures sensor clearance where universal adapters fail due to engine interference
• Sensors are sold separately - verify sensor thread type (1/8" NPT or 1/8" BPT) before purchase

Features

• Dual 1/8" NPT/BPT-compatible sensor ports for simultaneous oil temperature and pressure monitoring
• Raised design provides proper sensor clearance - eliminates fitment issues common with universal adapters
• Measures oil temperature before the cooler for the most accurate oil pan reference point
• No permanent engine modifications required - fully reversible installation
• CNC machined from 6061 billet aluminum for precision fitment and long-term durability
• Black anodized finish for corrosion resistance and clean engine bay appearance
• NPT socket plugs included - use one port or both without leaving an open tap
• Backed by PERRIN Performance's 5-year warranty

Specifications

• Filter Adapter Thread: M20 x 1.5
• Sensor Ports: 1/8" PT (compatible with 1/8" NPT and 1/8" BPT)
• Height: 1.8" / 46mm
• Material: 6061 Billet Aluminum
• Finish: Black Anodized
• Number of Sensor Ports: 2
• Estimated Install Time: 10 minutes
• Warranty: 5 Years

Included Components

• 1x PERRIN Oil Pressure/Temperature Adapter (ASM-GAU-102)
• 2x Oil Feed Pipes
• 2x NPT Socket Plugs
• Hardware and hoses for installation

Product Description

The PERRIN ASM-GAU-102 Oil Temperature and Pressure Adapter is a CNC-machined 6061 billet aluminum adapter that installs at the oil galley plug location on compatible Subaru and Toyota platforms, providing two 1/8" NPT/BPT-compatible sensor ports for mounting oil temperature and pressure gauges simultaneously. Unlike universal sandwich-style adapters that often fail due to engine clearance issues, the ASM-GAU-102 is specifically raised to ensure proper sensor fitment without interference. By measuring oil temperature at this location - before the cooler - the adapter captures a reading that closely matches the oil pan temperature, widely regarded as the most accurate oil temperature reference point for tuning and monitoring.

Installation requires no permanent modifications and can be completed in approximately 10 minutes with basic hand tools. Two NPT socket plugs are included, allowing the adapter to be used with a single sensor while keeping the unused port sealed and leak-free. The black anodized finish provides lasting corrosion resistance and a clean look in the engine bay. This adapter is compatible with a wide range of Subaru models from 2013 to 2025, as well as the Scion FR-S, Toyota 86, and Toyota GR86, making it a versatile solution for anyone adding oil monitoring gauges without compromising the factory oil system.