Engines and Components› Pistons and Piston Rings

CP Pistons

CP Ring ONLY for 93mm Subaru Piston

$30.25

SKU: C00A CPN-3661

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

Easy — 1–2 hours

Description

The CP Pistons CPN-3661 is a 3-ring piston ring pack designed for a 93mm bore size. It includes a 1.0mm Gas Nitrided Steel top ring, a 1.2mm Taper Hook Groove Napier second ring, and a 2.8mm Flex Vent oil ring.

These ring packs are sold per cylinder, and multiple quantities are required for multi-cylinder engines. They are compatible with several CP Piston Part #'s, including M9035, M9036, M9037, M9054, M9055, M9056, and M9051. Verification of the part number before ordering is recommended, as they may fit other custom piston applications.

Fitment

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Specifications

BrandCP Pistons
Part NumberC00A CPN-3661

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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