Engines and Components› Engine Bearings
SEALED POWER
MAIN BEARING SET
SKU: S03T 4663M
Easy — 1–2 hours
Description
Constructed from an overplated copper-lead alloy, these bearings feature a steel-backed bronze alloy lining for fatigue resistance and strength. They are grooved in the upper position and are for standard crankshaft undersize applications. The sealed power engine products, including bearings, meet industry standards for reliability and performance in premium passenger car and light truck rebuilds.
Fitment
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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 | SEALED POWER |
| Part Number | S03T 4663M |
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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