This product, the MERCURY BEARING ASSY, is an original and high-quality product with the OEM numbers 31-86763A04, 31-8M0104358, 86763A04, and 8M0104358. 

We proudly present our high-quality BEARING ASSY, the original OEM 31-86763A04 product specifically designed for Mercruiser engines. This bearing assembly guarantees smooth and efficient operation of your marine vessel. With the OEM codes 31-86763A04, 31-8M0104358, 86763A04, and 8M0104358, this is a top-of-the-line product from the renowned Mercury brand. Upgrade your marine vessel with confidence. The MERCURY BEARING ASSY | OEM 31-86763A04, 31-8M0104358, 86763A04, 8M0104358 | ORIGINAL PRODUCT is built with premium quality and precision engineering, ensuring seamless and effective performance. With OEM codes from the trusted Mercury brand, this bearing assembly is a reliable choice for smooth and efficient operation.