{"product_id":"hihitomorrow-trim-cylinder-cap-kit-for-suzuki-yamaha-115-300-hp-2-piece-aluminum-caps-with-seals-o-ring","title":"Hihitomorrow Trim Cylinder Cap Kit for Suzuki \u0026 Yamaha 115-300 HP — 2-Piece Aluminum Caps with Seals \u0026 O-ring","description":"\u003cp\u003e\u003cstrong\u003eHihitomorrow 2-piece trim cylinder cap kit includes two aluminum alloy caps, seals and O-ring to replace worn caps on select Suzuki and Yamaha outboard trim cylinders.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis replacement kit provides the external caps and internal sealing components needed to restore hydraulic trim cylinder ends on a wide range of Suzuki and Yamaha outboards (115–300 HP models specified by fitment). Designed as a direct-fit aftermarket alternative to multiple OEM part numbers, the set helps stop leaks, re-establish proper sealing and keeps trim cylinders protected from corrosion and wear when installed correctly.\u003c\/p\u003e\n\n\u003ch3\u003eWhich motors and years will this trim cap kit fit?\u003c\/h3\u003e\n\u003cp\u003eThis kit lists compatibility with many Suzuki and Yamaha 2- and 4-stroke outboards across model years — check bore and HP details to confirm fit. It covers Suzuki 4-cylinder and 6-cylinder 4-stroke models in the 115–300 HP ranges and Yamaha 4- and 6-cylinder 4-stroke and HPDI models as noted.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSuzuki coverage: select 115–200 HP 4-cylinder years and 200–300 HP 6-cylinder years (refer to provided HP and year ranges).\u003c\/li\u003e\n  \u003cli\u003eYamaha coverage: applicable 115–300 HP 4- and 6-cylinder models with specified bore sizes and SHO\/HPDI variants.\u003c\/li\u003e\n  \u003cli\u003eCompare your engine’s part number or cylinder bore to the kit’s OEM replacements before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does this kit restore a leaking or worn trim cylinder?\u003c\/h3\u003e\n\u003cp\u003eBy replacing the end caps and O-ring seals, the kit renews the mechanical barrier that keeps hydraulic fluid contained and shields the cylinder interior from water and corrosion. New seals and a corrosion-treated alloy cap help re-establish pressure integrity and reduce external water ingress when installed with proper torque and clean mating surfaces.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIncludes new rubber seals and an O-ring sized to OEM specifications for tight sealing.\u003c\/li\u003e\n  \u003cli\u003eAluminum alloy caps are corrosion-resistant to extend component life in marine environments.\u003c\/li\u003e\n  \u003cli\u003eRestores fitment to OEM part number equivalents for accurate sealing and alignment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the construction and quality features of this replacement set?\u003c\/h3\u003e\n\u003cp\u003eThe trim cap kit combines treated aluminum alloy for the caps with molded rubber seals designed for hydraulic service. The materials are selected to resist rust and corrosion from saltwater exposure while maintaining the flexibility needed for hydraulic sealing.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAluminum alloy cap body with anti-corrosion surface treatment.\u003c\/li\u003e\n  \u003cli\u003eDurable rubber seals engineered to resist hydraulic fluid and marine conditions.\u003c\/li\u003e\n  \u003cli\u003ePackaged as a two-piece set with seals and an O-ring for both cylinder ends.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I install and verify correct fitment?\u003c\/h3\u003e\n\u003cp\u003eInstallation requires removing the old caps, cleaning mating faces, seating new seals and torquing the caps to the manufacturer’s specification. Always confirm engine model, cylinder bore, and OEM part cross-references before fitting; if unsure, consult a marine technician.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eClean the cylinder end and mating surfaces thoroughly before assembly.\u003c\/li\u003e\n  \u003cli\u003eLubricate the O-ring with compatible hydraulic fluid to seat smoothly without twisting.\u003c\/li\u003e\n  \u003cli\u003eUse proper torque values and inspect for leaks during initial operation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This Hihitomorrow trim cylinder cap and seal kit is aimed at boat owners, marine mechanics and service shops repairing Suzuki and Yamaha outboards that match the listed HP and bore specifications. If you need an OEM-equivalent cap assembly to stop leaks, replace corroded end caps or maintain hydraulic trim integrity on compatible 115–300 HP engines, this kit offers a practical aftermarket option. Confirm your engine’s year, cylinder bore and OEM part numbers before purchase to ensure a correct match.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this kit fit my Suzuki 150 HP outboard?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — it fits many Suzuki 150 HP 4-stroke models (2006 onward). Verify by matching your engine year and OEM part number listed in the product details.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are the seals and O-ring included with the caps?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, the set includes both rubber seals and an O-ring so you receive complete end-cap replacement components.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Hihitomorrow","offers":[{"title":"Default Title","offer_id":48082978767006,"sku":"B0CSJNR4GY","price":60.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/hihitomorrow-front-view-trim-cap-packaging.jpg?v=1785821509","url":"https:\/\/northtrailauto.ca\/products\/hihitomorrow-trim-cylinder-cap-kit-for-suzuki-yamaha-115-300-hp-2-piece-aluminum-caps-with-seals-o-ring","provider":"North Trail Auto","version":"1.0","type":"link"}