Auto Barn
Est. 1957
ARP

ARP 4.000 Ring Compressor

$64.23

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 4.000" ring compressor tool makes installing pistons into cylinders easier and safer. A must-have for engine rebuilds.

Key Features

  • Hardened steel construction — built to last through multiple engine builds.
  • 4.000 inch bore size — fits pistons with that specific bore diameter.
  • Compresses piston rings for installation — prevents damage to rings and cylinder walls.

⚠️ 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 4.000 Ring Compressor

$64.23