Exterior Components› Body Panels and Components

NATIONAL

OIL BATH SEAL

$66.98

SKU: N038 370020A

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

Beginner — under 30 min

Description

The National 370020A is an oil bath wheel hub seal designed for front/steer axles on heavy-duty trucks. It features unitized construction for enhanced structural integrity and easier installation, along with a spring-loaded main lip made from abrasion-resistant nitrile. The seal's unique rubber I.D. and O.D. include patented SURE-LOCK® ribs to prevent shaft leaks and bore contamination.

This seal meets or exceeds OEM specifications in function, form, and fit. It offers superior containment exclusion, reduced friction build-up, and a longer lifespan compared to other wheel seals in its price range. The design incorporates four contact points for additional protection. An installation tool is essential for correctly installing oil bath seals.

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 370020A

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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