{"product_id":"manutex-3-ton-dual-pump-floor-jack-plunger-kit-for-pittsburgh-style-jacks-dual-low-side-plungers-cylinders-springs","title":"MANUTEX 3-Ton Dual-Pump Floor Jack Plunger Kit for Pittsburgh-style jacks — dual low-side plungers, cylinders \u0026 springs","description":"\u003cp\u003e\u003cstrong\u003eMANUTEX replacement plunger kit restores full lifting power to 3-ton dual-pump hydraulic floor jacks compatible with Pittsburgh and similar brands.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your dual-pump 3-ton floor jack is losing lift height or feels spongy, worn low-side pump plungers and cylinders are often the cause. This MANUTEX kit replaces both the larger and smaller low-side plungers plus the matching cylinders, springs, retainers, covers and C-rings to recover hydraulic pressure and reliable operation. The two plunger sets are different sizes — verify dimensions against your jack before installing.\u003c\/p\u003e\n\n\u003ch3\u003eHow will these replacement parts restore my jack’s lifting performance?\u003c\/h3\u003e\n\u003cp\u003eWorn plungers and cylinders let hydraulic fluid bypass seals or compress air, reducing pressure and travel. Installing both matched plungers and cylinders re-establishes seal contact and consistent fluid displacement so the jack regains its rated capacity and travel.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReplaces bigger and smaller low-side pump plungers to stop internal leakage.\u003c\/li\u003e\n  \u003cli\u003eNew springs and retainers ensure correct pump return and seating.\u003c\/li\u003e\n  \u003cli\u003eCovers and C-rings secure components to reduce contamination and wear.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich jack models are compatible with this MANUTEX kit?\u003c\/h3\u003e\n\u003cp\u003eThis kit is designed for 3-ton hydraulic floor jacks that use dual low-side pumps. It fits common makes that use similar dual-plunger arrangements such as Pittsburgh and other widely sold brands with comparable dimensions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible with many Pittsburgh-style 3-ton dual-pump jacks.\u003c\/li\u003e\n  \u003cli\u003eAlso fits several Harbor Freight, Daytona, Arcan, Torin Big Red-like models if measurements match.\u003c\/li\u003e\n  \u003cli\u003eCheck plunger and cylinder sizes included to confirm fit before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the exact dimensions and parts included in the kit?\u003c\/h3\u003e\n\u003cp\u003eThe package includes two distinct plunger assemblies (larger and smaller low-side) with their mating cylinders and hardware. Each set contains the pump plunger, cylinder, retainer, spring, protective cover and C-ring — note the two sets are not identical in size.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBigger low-side pump plunger: approximately 2.88\" x 0.86\" with seals; cylinder 2.59\" x 1.19\".\u003c\/li\u003e\n  \u003cli\u003eSmaller low-side pump plunger: approximately 2.85\" x 0.59\" with seals; cylinder 2.59\" x 1.04\".\u003c\/li\u003e\n  \u003cli\u003ePackage: two complete plunger\/cylinder sets plus springs, retainers, covers and C-rings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I check fit and perform a basic installation?\u003c\/h3\u003e\n\u003cp\u003eBefore you begin, compare the kit dimensions to the existing plungers and cylinders removed from your jack. Typical installation involves disassembling the pump area, swapping the old plungers and cylinders for the new assemblies, and reassembling with the provided retainers and C-rings.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eConfirm measurements of existing parts match kit dimensions to avoid mismatch.\u003c\/li\u003e\n  \u003cli\u003eDrain hydraulic fluid or keep a clean work area to prevent contamination.\u003c\/li\u003e\n  \u003cli\u003eReassemble carefully and bleed the jack per manufacturer guidance to remove trapped air.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: technicians, home mechanics, and shop owners with 3-ton dual-pump hydraulic floor jacks that have lost lift height or feel soft. If you operate Pittsburgh-style or similarly constructed jacks and need an economical repair that replaces both low-side plungers and their cylinders, this MANUTEX kit supplies the matched components and hardware necessary to restore reliable operation — provided you check the dimensions and follow safe installation and bleeding procedures.\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: Will this kit fit my 3-ton Pittsburgh floor jack?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Possibly—measure your jack’s low-side plungers and cylinders and compare to the kit dimensions before buying.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the package include both plunger sizes?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The kit contains two distinct plunger\/cylinder sets plus springs, retainers, covers and C-rings.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"MANUTEX","offers":[{"title":"Default Title","offer_id":48085231698078,"sku":"B0GQSW7TLC","price":40.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/manutex-front-packaging.jpg?v=1785868133","url":"https:\/\/northtrailauto.ca\/products\/manutex-3-ton-dual-pump-floor-jack-plunger-kit-for-pittsburgh-style-jacks-dual-low-side-plungers-cylinders-springs","provider":"North Trail Auto","version":"1.0","type":"link"}