Mercury – FourStroke 300 Hour Maintenance Kit | 4–6hp Service Package | Precision Components | 8M0120836Mercury FourStroke 300 Hour Maintenance Kit 46hp Service Package Precision Components 8M0120836 Overview If you run a small outboard, you know exactly how much it carries on its shoulders. These little engines are the ones pushing dinghies through quiet coves, powering small fishing boats toward early morning bites, and helping families explore the shoreline one slow drift at a time. They may be compact, but when you depend on them, you depend on them