Auto Barn
Est. 1957
ARP 3.900 Ring Compressor
ARP
ARP

ARP 3.900 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.

Worn-out piston rings cause compression loss. This ARP 3.900 Ring Compressor tool helps install new rings into cylinders.

Key Features

  • 3.900-inch bore size — fits common piston and cylinder combinations.
  • Steel construction — built to last through repeated use.
  • Clamp design — compresses piston rings for easier installation.
  • Direct fit — simplifies the process of installing piston rings.

⚠️ 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 3.900 Ring Compressor

$67.97