Easy — 1–2 hours
Description
This seal operates effectively within a temperature range of -20 deg. F to 300 deg. F (-29 deg. C to 49 deg. C). It offers resistance to EP lubricants and exhibits low swell in hydrocarbon fluids, ensuring durability and consistent function. The seal has an outside diameter of 1.989 inches, an inside diameter of 1.375 inches, and a thickness of 0.252 inches.
Fitment
Fitment Guaranteed
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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
| Brand | NATIONAL |
| Part Number | N038 714655 |
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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