Auto Barn
Est. 1957
ARP

ARP 3.800 Ring Compressor

$67.97

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

ARP's 3.800 Ring Compressor tool makes installing pistons into cylinders easier and safer. It's a well-built tool for engine builders.

Key Features

  • Compresses piston rings for easier cylinder installation — prevents ring breakage.
  • Designed for pistons with a 3.800 inch bore diameter — check your piston size.
  • Durable steel construction — built to last through multiple engine builds.
  • Polished interior surface — protects rings from damage during installation.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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ARP 3.800 Ring Compressor

$67.97