ARP 86.5mm Ring Compressor

SKU: 901-8650 | UPC: 672036030063

ARP 86.5mm Ring Compressor for 2015-2023 VW Golf GTI R Audi A3 S3 2.0T Builds

The ARP 86.5mm Ring Compressor provides precision piston ring installation for performance VW and Audi 2.0T EA888 engines with 86.5mm bores. This tool supports big bore kit assembly on models including Golf GTI Golf R A3 and S3. It compresses rings evenly without damage for proper seating and consistent power delivery in high-performance engines.

Key Features

• Precision CNC Machined 6061-T6 Billet Aluminum: Delivers exact tolerances and strength for engine builders tackling high-volume performance work.
• 15-Degree Tapered Leading Edge: Guides pistons smoothly into cylinders with reduced insertion force and minimal ring flare risk.
• Full 360-Degree Circumference Support: Secures rings firmly to prevent cocking distortion or breakage during critical assembly steps.
• 86.5mm (3.404 inch) Specific Sizing: Designed for oversized pistons in VW Audi 2.0T big bore kits requiring no adjustments.
• ARP Engineered Durability: Handles repeated use in race shops delivering reliable results build after build.

Product Notes

• Verify bore size before use to confirm 86.5mm compatibility.
• Clean surfaces with solvent prior to installation for optimal ring seating.
• Arrives fully assembled ready for immediate engine work.

Installation Notes

• Professional installation recommended.
• Lubricate rings lightly with assembly oil before compressing.
• Works with all standard piston designs and ARP head stud kits.

This Part Fits

Year	Make	Model	Submodel
2015-2021	Volkswagen	Golf GTI	2.0T All
2015-2021	Volkswagen	Golf R	2.0T All
2015-2023	Audi	A3	2.0T Quattro
2015-2021	Audi	S3	2.0T All
2019-2023	Volkswagen	Jetta GLI	2.0T All
2017-2023	Volkswagen	Arteon	2.0T All

Why Choose ARP?

• 50+ years leading performance engine hardware innovation.
• Same quality standards applied from fasteners to assembly tools.
• Proven reliable by racing teams and shops worldwide.

Frequently Asked Questions

• Q: Does this fit standard bore VW 2.0T engines?
  A: No it targets 86.5mm bores used in big bore stroker kits for enhanced displacement on EA888 platforms.
• Q: What material construction does it use?
  A: CNC machined from 6061-T6 billet aluminum for lightweight strength and precision fit.
• Q: Is there a warranty included?
  A: ARP offers limited lifetime warranty covering manufacturing defects when used as directed.

Shipping &amp. Handling

• Method: UPS Ground USPS Priority
• Availability: In stock – ships same or next business day
• Packaging: Protective cardboard box 5 x 5 x 5 inches
• Weight: 1.00 lb