{"product_id":"mercury-outboard-lower-unit-75-90-hp-4-cylinder-4-stroke","title":"Mercury Outboard Lower Unit | 75–90 HP | 4-Cylinder 4-Stroke","description":"\u003cp\u003eThe \u003cb\u003eOBR Mercury\/Mariner 75–90 HP Four-Stroke Lower Unit\u003c\/b\u003e is a precision-built \u003cb\u003enew or remanufactured replacement gearcase\u003c\/b\u003e designed specifically for selected \u003cb\u003efour-cylinder Mercury and Mariner 75 HP and 90 HP four-stroke outboards\u003c\/b\u003e produced from \u003cb\u003e2000 through 2006\u003c\/b\u003e. Engineered to restore peak propulsion and reliable power transfer, this heavy-duty gearcase provides a dependable, high-quality alternative for marine servicing and overhaul projects.\u003c\/p\u003e\n\u003cp\u003eThis application is structured across three distinct model-year groups to match specific internal configurations. The \u003cb\u003e2000–2002\u003c\/b\u003e and \u003cb\u003e2003 model-year units\u003c\/b\u003e are built around the \u003cb\u003eshort shift-rod arrangement\u003c\/b\u003e. The \u003cb\u003e2004–2006 model-year units\u003c\/b\u003e feature the \u003cb\u003elong shift-rod arrangement\u003c\/b\u003e and are offered in both \u003cb\u003e20-inch (L)\u003c\/b\u003e and \u003cb\u003e25-inch (XL) driveshaft lengths\u003c\/b\u003e to accommodate varying transom setups.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eHorsepower and model year alone cannot confirm fitment.\u003c\/b\u003e Precise verification requires checking the \u003cb\u003ecomplete engine model and serial number\u003c\/b\u003e, \u003cb\u003ecurrent OEM gearcase part number\u003c\/b\u003e, \u003cb\u003eshift-rod configuration\u003c\/b\u003e, \u003cb\u003edriveshaft length\u003c\/b\u003e, \u003cb\u003egear ratio\u003c\/b\u003e, and \u003cb\u003erotation\u003c\/b\u003e prior to variant selection. These gearcases are \u003cb\u003eOBR aftermarket replacement units\u003c\/b\u003e engineered for compatibility with Mercury\/Mariner engines and are not represented as Mercury-manufactured or SEI lower units.\u003c\/p\u003e","brand":"OBR Parts","offers":[{"title":"Re-manufactured Lower Unit \/ Remanufactured | 75\/90 HP | 2000–2002 | Short Shift Rod | 20-inch L | ME-G4-08-R","offer_id":47239607189666,"sku":"ME-G4-08-R","price":2559.0,"currency_code":"USD","in_stock":true},{"title":"Re-manufactured Lower Unit \/ Remanufactured | 75\/90 HP | 2003 Only | Short Shift Rod | 20-inch L | ME-G4-08A-R","offer_id":47239607222434,"sku":"ME-G4-08A-R","price":2559.0,"currency_code":"USD","in_stock":true},{"title":"Re-manufactured Lower Unit \/ Remanufactured | 75\/90 HP | 2004–2006 | Long Shift Rod | 20-inch L | ME-G4-09-R","offer_id":47239607255202,"sku":"ME-G4-09-R","price":2559.0,"currency_code":"USD","in_stock":true},{"title":"Re-manufactured Lower Unit \/ Remanufactured | 75\/90 HP | 2004–2006 | Long Shift Rod | 25-inch XL | ME-G4-09A-R","offer_id":47239607287970,"sku":"ME-G4-09A-R","price":2559.0,"currency_code":"USD","in_stock":true},{"title":"New Lower Unit \/ New | 75\/90 HP | 2000–2002 | Short Shift Rod | 20-inch L | ME-G4-08-N","offer_id":47239607320738,"sku":"ME-G4-08-N","price":2829.0,"currency_code":"USD","in_stock":true},{"title":"New Lower Unit \/ New | 75\/90 HP | 2003 Only | Short Shift Rod | 20-inch L | ME-G4-08A-N","offer_id":47239607353506,"sku":"ME-G4-08A-N","price":2829.0,"currency_code":"USD","in_stock":true},{"title":"New Lower Unit \/ New | 75\/90 HP | 2004–2006 | Long Shift Rod | 20-inch L | ME-G4-09-N","offer_id":47239607386274,"sku":"ME-G4-09-N","price":2829.0,"currency_code":"USD","in_stock":true},{"title":"New Lower Unit \/ New | 75\/90 HP | 2004–2006 | Long Shift Rod | 25-inch XL | ME-G4-09A-N","offer_id":47239607419042,"sku":"ME-G4-09A-N","price":2829.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/ccca9543-mercury-lower-unit.png?v=1765344048","url":"https:\/\/marinerswarehouse.com\/products\/mercury-outboard-lower-unit-75-90-hp-4-cylinder-4-stroke","provider":"Mariners Warehouse Shop","version":"1.0","type":"link"}