{"product_id":"lippert-354176-hydraulic-slide-actuator-26-stroke-1-1-2-bore","title":"Lippert 354176 Hydraulic Slide Actuator | 26\" Stroke | 1-1\/2\" Bore","description":"\u003cp\u003eReplace a leaking, bent, or failed slide-out actuator with the \u003cstrong\u003eLippert Aluminum Hydraulic Actuator (Part 354176)\u003c\/strong\u003e — a \u003cstrong\u003e26-inch stroke, 1-1\/2\" bore replacement cylinder\u003c\/strong\u003e for Lippert hydraulic slide-out systems. Supersedes older part \u003cstrong\u003e128739\u003c\/strong\u003e. Available at The RV Surplus.\u003c\/p\u003e\n\n\u003ch3\u003e⚠️ CRITICAL — Confirm Fitment Before Ordering\u003c\/h3\u003e\n\u003cp\u003eLippert makes hydraulic slide actuators in \u003cstrong\u003emany stroke lengths and bore sizes\u003c\/strong\u003e. The correct actuator for your slide depends on the specific system, room weight, and slide design.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eConsult your coach owner's manual or Lippert documentation for the correct fitting before ordering.\u003c\/strong\u003e An actuator with the wrong stroke won't fully extend or retract the room; wrong bore size won't develop the right force.\u003c\/p\u003e\n\n\u003ch3\u003e⭐ Key Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eCylinder Stroke\u003c\/th\u003e\n\u003ctd\u003e26\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBore Size\u003c\/th\u003e\n\u003ctd\u003e1-1\/2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eAluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eHydraulic actuator (slide-out)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSupersedes\u003c\/th\u003e\n\u003ctd\u003eLippert 128739\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCountry of Origin\u003c\/th\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003e⭐ Part Number History\u003c\/h3\u003e\n\u003cp\u003eLippert 354176 is the \u003cstrong\u003ecurrent replacement for older part 128739\u003c\/strong\u003e. If your parts list or dealer quoted 128739, this is the correct supersession.\u003c\/p\u003e\n\n\u003ch3\u003e⚠️ Before Replacing the Actuator\u003c\/h3\u003e\n\u003cp\u003eHydraulic slide problems aren't always the actuator. Rule these out first:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHydraulic fluid level\u003c\/strong\u003e — low fluid in the pump reservoir presents as a weak or non-moving slide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHose and fitting leaks\u003c\/strong\u003e — inspect every connection from pump to actuator; a weeping fitting looks like a bad cylinder\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePump operation\u003c\/strong\u003e — confirm the pump builds pressure and reverses direction properly\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBattery voltage at the pump\u003c\/strong\u003e — hydraulic pumps need real current; a weak battery reads as a weak system\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSlide binding mechanically\u003c\/strong\u003e — if the room itself is dragging, a new cylinder won't fix the resistance\u003c\/li\u003e\n  \u003cli\u003eSee our \u003ca href=\"https:\/\/thervsurplus.com\/blogs\/rv-slide-out-troubleshooting\"\u003e\u003cstrong\u003eRV Slide-Out Diagnostic Guide\u003c\/strong\u003e\u003c\/a\u003e for a full walkthrough\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e⭐ When to Replace\u003c\/h3\u003e\n\u003cp\u003eCommon signs the actuator itself is the fault:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVisible fluid leak from the cylinder body\u003c\/strong\u003e or at the rod seal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBent or scored piston rod\u003c\/strong\u003e — any damage to the chrome rod surface tears the seal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSlide extends but won't hold position\u003c\/strong\u003e (internal piston seal has failed, letting fluid bypass)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAudible pump surge\u003c\/strong\u003e as the room moves — pump cycling to make up for internal leakage\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e⚠️ Professional Installation Recommended\u003c\/h3\u003e\n\u003cp\u003eHydraulic slide actuator replacement involves working with \u003cstrong\u003epressurized hydraulic fluid, slide-mechanism alignment, and system bleeding\u003c\/strong\u003e. Should be performed by a qualified RV service technician unless you have prior hydraulic systems experience. Improper install can damage the slide, the pump, or both.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e(1) Lippert 354176 aluminum hydraulic actuator, 26\" stroke × 1-1\/2\" bore\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNOT included:\u003c\/strong\u003e hydraulic fluid (standard ATF or Lippert-spec), hoses, fittings, mounting hardware if existing is damaged.\u003c\/p\u003e\n\n\u003ch3\u003e1-Year Warranty\u003c\/h3\u003e\n\u003cp\u003eBacked by Lippert's \u003cstrong\u003e1-year warranty\u003c\/strong\u003e. Check documentation for full terms.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eBrand: Lippert\u003c\/li\u003e\n  \u003cli\u003ePart Number: 354176\u003c\/li\u003e\n  \u003cli\u003eSupersedes: 128739\u003c\/li\u003e\n  \u003cli\u003eHardware Type: Actuator (hydraulic cylinder)\u003c\/li\u003e\n  \u003cli\u003eMaterial: Aluminum\u003c\/li\u003e\n  \u003cli\u003eCylinder Stroke: 26\"\u003c\/li\u003e\n  \u003cli\u003eBore: 1-1\/2\"\u003c\/li\u003e\n  \u003cli\u003eApplication: Lippert hydraulic slide-out systems\u003c\/li\u003e\n  \u003cli\u003eShipping Dimensions: 60\" L × 3.5\" W × 3.5\" H\u003c\/li\u003e\n  \u003cli\u003eShipping Weight: 8.5 lbs\u003c\/li\u003e\n  \u003cli\u003eCountry of Origin: USA\u003c\/li\u003e\n  \u003cli\u003eWarranty: 1 year\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lippert","offers":[{"title":"Default Title","offer_id":58693724537135,"sku":null,"price":484.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/7663\/0063\/files\/354176_Lippert_AluminumHydraulicActuatorwith26Stroke112Bore_0_1_1.png?v=1792675224","url":"https:\/\/thervsurplus.com\/en-ca\/products\/lippert-354176-hydraulic-slide-actuator-26-stroke-1-1-2-bore","provider":"The RV Surplus","version":"1.0","type":"link"}