Engines and Components› Pistons and Piston Rings

NATIONAL

O-RING

$16.60

SKU: N038 221PKG

In Stock
In Stock
Ships by Jun 18
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Description

The National 221PKG is a multi-purpose O-ring designed for a variety of industrial and automotive applications. It features a nitrile material construction and has dimensions of 1/8" width, 1-7/16" inside diameter, and 1-11/16" outside diameter. The O-ring is rated for a temperature range of -40°F to 225°F (-40°C to 107°C) and offers excellent resistance to petroleum-based oils and fuels, water, and alcohol.

National has over 75 years of experience in providing premium sealing solutions, with a design team that keeps pace with industry advancements to offer solutions for modern vehicles. This O-ring provides good resistance to acids and bases, excluding those with a strong oxidizing effect.

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

BrandNATIONAL
Part NumberN038 221PKG

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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