Exterior Components› Body Panels and Components

NATIONAL

OIL BATH SEAL

$71.39

SKU: N038 370031A

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

Easy — 1–2 hours

Description

The National 370031A is a tractor seal designed for drive axles with 40K/44K lb capacities. It features an abrasion-resistant nitrile construction with a spring-loaded main lip for positive sealing and reduced shaft interference. The unitized construction enhances structural integrity and protects the main lip. Unique rubber I.D. and O.D. with patented SURE-LOCK ribs prevent shaft leaks and bore contamination.

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 370031A

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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