Torque Solution Piston Ring Compressor 83-87mm - FA20/FB20 Engine Tool | TS-TL-919

The Torque Solution Piston Ring Compressor (TS-TL-919) is a precision-engineered engine assembly tool designed specifically for 83.05mm–86.87mm bore sizes, making it the ideal solution for FA20 and FB20 engine builds. Whether you're performing a full engine rebuild on a Subaru BRZ, Toyota 86, or Subaru WRX/Forester, this tool ensures proper piston ring compression for a clean, damage-free piston installation every time. Purpose-built to match the exact bore dimensions of these popular flat-four engines, it eliminates the guesswork and risk associated with universal ring compressors.

Key Features & Benefits

• Application-Specific Bore Range (83.05mm–86.87mm) — Precisely sized for FA20 and FB20 engine families, ensuring a snug, consistent fit that generic compressors can't match.
• Precision Machined Construction — Engineered to tight tolerances to prevent ring damage, scoring, or misalignment during piston installation.
• Reduces Risk of Engine Damage — Proper ring compression minimizes the chance of broken or misaligned rings, protecting your investment in a fresh engine build.
• Reusable Professional-Grade Tool — Built to withstand repeated use across multiple builds, making it a smart addition to any engine builder's tool kit.
• Torque Solution Quality — Backed by one of the automotive aftermarket's most trusted performance brands, known for precision-engineered parts and tools.
• Direct Fitment Design — Eliminates the need for awkward adjustments or improvised solutions, streamlining your engine assembly process.

What's Included

• 1x Torque Solution Piston Ring Compressor (83.05mm–86.87mm)

Specifications

Fitment & Compatibility

This piston ring compressor is purpose-built for engines within the 83.05mm–86.87mm bore range, which includes the following engine families:

• FA20 — Found in Subaru BRZ, Toyota 86 (GT86/FRS), and Subaru WRX (2015+)
• FB20 — Found in Subaru Impreza, Subaru Forester, Subaru XV/Crosstrek, and Subaru Legacy (2.0L variants)

Always verify your engine's exact bore size before use. This tool is not intended for engines outside the specified bore range.

Installation

This tool is designed for use during engine assembly and does not require installation in the traditional sense. Slide the compressor over the piston and rings, compress to the specified bore diameter, align with the cylinder bore, and drive the piston in using a wooden handle or mallet. No special equipment is required beyond standard engine assembly tools. Recommended for experienced engine builders or professional mechanics performing FA20/FB20 engine rebuilds. Always follow OEM torque specifications and assembly procedures during engine reassembly.

Is this tool compatible with bored/stroked FA20 engines? This compressor covers the stock bore range of 83.05mm–86.87mm. If your engine has been overbored beyond 86.87mm, a larger compressor will be required.