The CONNECTING ROD BEARING SET with the part number HCB103-9685 and the designation “- .020” indicates an undersized bearing set for connecting rods in an engine. The “- .020” notation signifies that these bearings are slightly undersized by 0.020 inches compared to the standard size. Undersized bearings like these are used when engine components, such as the crankshaft or connecting rods, have been machined or worn and require a slightly smaller bearing to achieve the proper clearances. Connecting rod bearings are crucial components that facilitate the movement of the connecting rod on the crankshaft, reducing friction and supporting smooth rotation. The undersized designation ensures a precise fit in the engine, allowing for correct clearances and optimal performance. The part number HCB103-9685 serves as a unique identifier, allowing individuals and mechanics to identify and order the correct connecting rod bearing set for a specific engine or vehicle model, ensuring a proper fit and optimal functioning within the engine’s connecting rod system.

Specifications: