{"product_id":"4-5-bore-24-stroke-mtd-style-replacement-trunnion-mount-log-splitter-cylinder-wsd31-117","title":"4.5\" Bore × 24\" Stroke MTD-Style Replacement Trunnion-Mount Log Splitter Cylinder (WSD31-117)","description":"\u003ch1\u003e\u003cspan\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0024\/7169\/0299\/files\/free_shipping_no_sales_tax_desc_banner.png?v=1774986479\" alt=\"\"\u003e\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp class=\"PDq2pG_selectionAnchorContainer\"\u003e\u003cstrong\u003eMTD-Style Replacement • 3,500 PSI Maximum • Double Acting • Rebuildable Construction\u003c\/strong\u003e\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eReplace a worn or leaking cylinder on a compatible log splitter with the \u003cstrong\u003eWSD31-117 Hydraulic Log Splitter Cylinder\u003c\/strong\u003e. This OEM-grade replacement features a \u003cstrong\u003e4.5-inch bore, 24-inch stroke, and trunnion mounting configuration\u003c\/strong\u003e commonly used on select MTD-manufactured log splitters.\u003c\/p\u003e\n\u003cp\u003eThe all-welded, double-acting cylinder provides hydraulic power during both extension and retraction. Replaceable internal seals allow the cylinder to be rebuilt after normal wear, helping extend its service life. This version is supplied \u003cstrong\u003ewithout the handle or control-valve mounting flange\u003c\/strong\u003e located near the piston end on certain newer splitter configurations. \u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e4.5-Inch Bore\u003c\/strong\u003e\u003cbr\u003eProvides the large piston area required for compatible full-size hydraulic log splitters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e24-Inch Stroke\u003c\/strong\u003e\u003cbr\u003eOffers the cylinder travel commonly used for processing standard firewood lengths.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrunnion-Mount Design\u003c\/strong\u003e\u003cbr\u003eReplaces compatible cylinders supported by mounting points positioned around the cylinder body.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDouble-Acting Operation\u003c\/strong\u003e\u003cbr\u003eHydraulic pressure powers both cylinder extension and retraction.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3,500 PSI Maximum Operating Pressure\u003c\/strong\u003e\u003cbr\u003eDesigned for high-pressure log splitter hydraulic systems operating within the published rating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAll-Welded Construction\u003c\/strong\u003e\u003cbr\u003eProvides a rugged cylinder body for demanding outdoor power-equipment applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRebuildable Design\u003c\/strong\u003e\u003cbr\u003eInternal seals can be replaced rather than requiring disposal of the complete cylinder after seal wear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Port Configuration\u003c\/strong\u003e\u003cbr\u003eFeatures one JIC-8 male connection and one 1\/2-inch NPTF female connection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlack Painted Finish\u003c\/strong\u003e\u003cbr\u003eHelps protect the exterior cylinder body against corrosion and outdoor exposure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM-Grade MTD Replacement\u003c\/strong\u003e\u003cbr\u003eDesigned to replace compatible cylinders used on select Troy-Bilt, Cub Cadet, Bolens, and MTD log splitters. \u003cspan class=\"\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eReplacement Part Compatibility\u003c\/h2\u003e\n\u003cp\u003eThe WSD31-117 is designed as an OEM-grade replacement for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eMTD 918-0769A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMTD 718-0769\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMTD 718-0769A\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eTroy-Bilt’s current parts information confirms that part number \u003cstrong\u003e918-0769A\u003c\/strong\u003e supersedes both \u003cstrong\u003e718-0769\u003c\/strong\u003e and \u003cstrong\u003e718-0769A\u003c\/strong\u003e. \u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eCompatible brands may include select models sold under:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMTD\u003c\/li\u003e\n\u003cli\u003eTroy-Bilt\u003c\/li\u003e\n\u003cli\u003eCub Cadet\u003c\/li\u003e\n\u003cli\u003eBolens\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCompatibility must be determined by the original hydraulic-cylinder part number and mounting configuration—not by brand or splitter tonnage alone.\u003c\/p\u003e\n\u003ch2\u003eNo Handle-Mounting Flange\u003c\/h2\u003e\n\u003cp\u003eThis model does \u003cstrong\u003enot\u003c\/strong\u003e include the handle or control-valve support flange near the piston end.\u003c\/p\u003e\n\u003cp\u003eWe offer a separate cylinder, model \u003ca href=\"https:\/\/www.woodsplitterdirect.com\/products\/4-5-bore-24-stroke-mtd-style-trunnion-mount-with-valve-bracket-log-splitter-cylinder-wsd31-118\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eWSD31-118\u003c\/strong\u003e\u003c\/a\u003e, with a valve-support bracket installed. Compare the existing cylinder carefully before ordering, because the flanged and non-flanged versions may not interchange without changing the valve-mounting arrangement. \u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eQuick Specifications\u003c\/h2\u003e\n\u003cdiv class=\"TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"last:pe-10\"\u003eSpecification\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTool Tuff\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel \/ SKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWSD31-117\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReplacement Part Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e918-0769A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSuperseded Part Numbers\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e718-0769 and 718-0769A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHydraulic Log Splitter Cylinder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting Style\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTrunnion Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCylinder Action\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDouble Acting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBore Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.5 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCylinder Outside Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApproximately 5 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStroke Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e24 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Operating Pressure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3,500 PSI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHydraulic Ports\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eJIC-8 Male and 1\/2 in. NPTF Female\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAll Welded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRebuildable\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHandle\/Valve Mounting Flange\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFinish\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBlack Paint\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003ePackage Contents\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eOne WSD31-117 hydraulic log splitter cylinder\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eHydraulic hoses, fittings, mounting hardware, pins, control valve, hydraulic fluid, and seal kits are not listed as included.\u003c\/p\u003e\n\u003ch2\u003eImportant Fitment Information\u003c\/h2\u003e\n\u003cp\u003eThis cylinder is \u003cstrong\u003enot universal\u003c\/strong\u003e. Before ordering, verify:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOriginal cylinder part number\u003c\/li\u003e\n\u003cli\u003eTrunnion location and dimensions\u003c\/li\u003e\n\u003cli\u003e4.5-inch bore\u003c\/li\u003e\n\u003cli\u003e24-inch stroke\u003c\/li\u003e\n\u003cli\u003eHydraulic-port types and locations\u003c\/li\u003e\n\u003cli\u003ePin and mounting dimensions\u003c\/li\u003e\n\u003cli\u003eFully retracted and extended lengths\u003c\/li\u003e\n\u003cli\u003eAvailable installation clearance\u003c\/li\u003e\n\u003cli\u003eWhether a valve-support flange is required\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Wood Splitter Direct","offers":[{"title":"Default Title","offer_id":49156002840811,"sku":"31-117","price":359.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0024\/7169\/0299\/files\/31-117_918-0769A.webp?v=1785966157","url":"https:\/\/www.woodsplitterdirect.com\/products\/4-5-bore-24-stroke-mtd-style-replacement-trunnion-mount-log-splitter-cylinder-wsd31-117","provider":"Wood Splitter Direct","version":"1.0","type":"link"}