Easy — 1–2 hours
Description
This seal is engineered to withstand temperatures ranging from -20°F to 300°F (-29°C to 49°C) and offers resistance to EP lubricants and low swell in hydrocarbon fluids. Its specifications include a housing bore of 3.125 inches, an inside diameter of 53.980 mm, and an outside diameter of 79.500 mm. The shaft diameter is also 53.980 mm, with a thickness of 0.500 inches and a width of 12.700 mm.
Fitment
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Available on iOS & Android
Specifications
| Brand | NATIONAL |
| Part Number | N038 410312N |
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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