Transom Seal Service Bellows Kit – Fits MerCruiser R, MR Alpha One Gen 1, Alpha One SS (Replaces MerCruiser 30-803097T1, Sierra 18-8213) 35-50HP What is the difference between

What is the difference between this housing and the OEM version

Includes a complete set of wires with boots

and XRmarine Sport-300

it is recommended to replace the water pump impeller every 100 hours of operation or at least once per boating season

Transom Seal Service Bellows Kit – Fits MerCruiser R, MR Alpha One Gen 1, Alpha One SS (Replaces MerCruiser 30-803097T1, Sierra 18-8213) 35-50HP What is the difference betweenProduct Details This Transom Seal Service Bellows Kit Fits MerCruiser Alpha One Gen 1, R, MR is a comprehensive aftermarket solution for MerCruiser R, MR, and Alpha One Gen 1 sterndrives (19831991) with serial numbers 6225577 and up. It also fits Alpha One SS models from 19861989 with serial numbers 0A545004 and up. It serves as a direct replacement for MerCruiser part 30 803097T1, Sierra 18 8213 18 2601 1, and Mallory 9 72902, providing all necessary