🏷️ Basic Information Identification Make: MerCruiser Model: R, MR, Alpha One, Alpha One SS Product Type: Service Manual 📋 Manual Details Publication Manual Type: Factory Service Manual Language: English Format: PDF Delivery Method: Download 📄 Coverage Transom Assemblies Mc 120R/140B/185R/488R/898R/228R/260R: Serial Numbers 6216687 - 6849289 Mc 120Mr/140Mr/170Mr/185Mr/190Mr/200Mr/230Mr/260Mr/300 Tempest Mr: Serial Numbers 6849290 - 0A471374 Mc Alpha One/Alpha One Ss: Serial Numbers 0A471375 and Above Sterndrive Units R Mr Mc 120R-260R: Various gear ratios and serial number ranges Sterndrive Units Mr Mc 120 Mr - 300 Tempest Mr: Various gear ratios and serial number ranges Sterndrive Units Alpha One Mc Alpha One / Alpha One Ss: Various gear ratios and serial number ranges Sea Ray Sterndrives Sea Ray Sterndrive Units And Transom Assembly (Oyster White): Cross-references to MerCruiser models and serial number ranges 📄 Service Outline Section 1 Title: Important Information Section 2 Title: Removal, Installation and Adjustments Section 3 Title: Sterndrive Unit Section 4 Title: Transom Assembly Section 5 Title: Power Trim Section 6 Title: Steering Systems Section 7 Title: Corrosion Protection 📄 Capabilities Repair Instruction Detail Level: Step-by-step repair instruction Maintenance Specifications Scope: Maintenance specifications Overhaul Repair Focus: Comprehensive overhaul and repair Visual Aid Support: Photos and Illustrations