Piston Ring Compressor [3.917 in. Bore, Tapered, Billet Aluminum]

Name: Piston Ring Compressor [3.917 in. Bore, Tapered, Billet Aluminum]
Brand: ARP
SKU: 070-899-9170
Price: 61.06 USD
Availability: InStock

^$61⁰⁶

Ships on 11/20/2026

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Piston Ring Compressor

3.917 in. Bore

Tapered Design

Billet Aluminum

Black Anodized Finish

Sold Individually

A tapered ring compressor squeezes the rings evenly as the piston slides in, so there is no prying, no broken ring lands and no scratched cylinder walls. This ARP compressor is machined from billet aluminum and sized for a 3.917 in. bore for a precise fit.

ARP 899-9170 Piston Ring Compressor Features:

Sized for a 3.917 in. cylinder bore
Tapered bore compresses rings gradually during installation
CNC machined billet aluminum
Black anodized finish
Sold individually

Part TypePiston Ring Compressor

BrandARP

Part CategoryPerformance Parts

Bore Size3.917 in

TaperedYes

QuantitySold Individually

MaterialBillet Aluminum

Part FitmentUniversal

FinishBlack Anodized

Vendor Part Number899-9170

Package Qty1

Package TypeEA

Some parts are not legal for use in California or other states with similar laws / regulations

Piston Ring Compressor [3.917 in. Bore, Tapered, Billet Aluminum]

ARP 899-9170 Piston Ring Compressor Features:

⚠️ Warning

Motor Vehicles

Tools

Electrical Cords