Exterior Components Body Panels and Components

NATIONAL

SEAL

$66.78

SKU: N038 99166

In Stock
In Stock
Ships by Jun 14
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The National 99166 is a shaft repair sleeve designed to fix damaged, grooved, or worn shafts. Its durable stainless steel construction provides a corrosion-free sealing surface that surpasses original specifications. This sleeve is ideal for shafts showing signs of seal wear, such as tracks or grooves. Its ultra-thin construction allows the original seal to be used with minimal added lip loading, and it features an easy installation with a removable flange and tool.

Fitment

Fitment Guaranteed

Don’t gamble
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 99166

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.

View Full Return Policy