Exterior Components› Body Panels and Components

ARP

ARP Ring Square Tool 94mm-100mm

$56.76

SKU: A00M 902-9400

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The ARP 902-9400 is a piston ring squaring tool designed for accurate piston ring fitting. This tool is CNC-machined from 6061 T-6 billet aluminum tube and features a black anodized finish.

It is dual-sized and includes engraved bore sizes ranging from 3.150 in. to 4.800 in. SAE and 80mm to 122mm metric, with an overall bore adjustment range of 3.700-3.937 inches. The tool is sold individually.

Fitment

Fitment Guaranteed

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on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandARP
Part NumberA00M 902-9400

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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