{"product_id":"pentair-piston-shaft-assembly-replacement-kit-for-263055-slide-valve-pvc-pool-spa-repair-includes-shaft-and-seals","title":"Pentair piston shaft assembly replacement kit for 263055 slide valve — PVC pool \u0026 spa repair, includes shaft and seals","description":"\u003cp\u003e\u003cstrong\u003eReplacement piston shaft assembly kit for Pentair 263055 slide valves restores smooth valve operation in PVC push-pull pool and spa systems.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis Pentair 263055 piston shaft assembly replacement kit (CMP 25831-110-100, catalog 4600-3055) is a factory-compatible repair set designed for Pentair push-pull PVC slide valves used in pool and spa plumbing. The kit supplies the internal shaft and related components needed to replace worn or damaged piston shafts, helping rebuild the valve without swapping the entire valve body. It’s intended for use where the Pentair 263055 valve is specified and fits Pentair pool products that use the same piston shaft configuration.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this piston shaft kit fix a sticky or leaking slide valve?\u003c\/h3\u003e\n\n\u003cp\u003eWorn piston shafts and related internal parts commonly cause valves to stick, fail to seal, or allow bypass flow. Replacing the shaft assembly restores correct alignment and sealing action inside the slide valve, often eliminating leaks and improving actuation smoothness. Installation typically requires disassembling the valve bonnet and swapping the old shaft for the new components in the kit.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eDirectly replaces Pentair Push Pull valve piston shaft (fits part 263055)\u003c\/li\u003e\n  \u003cli\u003eIncludes the shaft and associated small components matched to CMP 25831-110-100\u003c\/li\u003e\n  \u003cli\u003eRestores sealing surfaces and reduces bypass flow when installed correctly\u003c\/li\u003e\n  \u003cli\u003eCompatible with Pentair pool product configurations using catalog 4600-3055\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat do I need to install the replacement piston shaft assembly?\u003c\/h3\u003e\n\n\u003cp\u003eBasic hand tools and some plumbing know-how are sufficient for most installations. You’ll remove the valve bonnet and slide assembly, extract the old piston shaft, and install the new shaft and any included seals or clips from the kit. Follow the valve manufacturer’s service instructions for torque and reassembly to ensure a reliable seal and correct operation.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eStandard screwdrivers, pliers, and a small wrench set\u003c\/li\u003e\n  \u003cli\u003eManufacturer service diagram or valve disassembly guide recommended\u003c\/li\u003e\n  \u003cli\u003eClean, lubricated O-rings or silicone lubricant compatible with pool plastics\u003c\/li\u003e\n  \u003cli\u003eOptional replacement bonnet bolts or gasket if original hardware is corroded\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this kit fit my valve — how can I verify compatibility?\u003c\/h3\u003e\n\n\u003cp\u003eConfirm compatibility by matching part numbers and valve style. This assembly is listed for Pentair Part Number 263055 and corresponds to CMP Part Number 25831-110-100 and Catalog Part Number 4600-3055. Compare those numbers with the stamping or documentation on your existing valve or consult your parts diagram to ensure an exact fit.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eMatch the valve body or documentation to Pentair 263055 for correct fitment\u003c\/li\u003e\n  \u003cli\u003eCross-reference CMP 25831-110-100 and catalog 4600-3055 to avoid mismatches\u003c\/li\u003e\n  \u003cli\u003eContact Pentair dealer or reference valve schematic if unsure about internal geometry\u003c\/li\u003e\n  \u003cli\u003eNot a universal shaft—designed for Pentair push-pull slide valve families\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow long does the repair usually take and what performance changes should I expect?\u003c\/h3\u003e\n\n\u003cp\u003eA competent DIYer or service tech can often complete the swap in 20–60 minutes depending on valve accessibility and condition. After installation you should notice smoother valve movement, improved sealing with reduced bypass, and restored control over flow routing. If the valve body or slide is damaged, consider inspecting those parts too since the kit refreshes internal shaft components but does not replace the outer body.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eTypical install time: 20–60 minutes with basic tools\u003c\/li\u003e\n  \u003cli\u003eExpected result: smoother actuation and reduced internal leakage\u003c\/li\u003e\n  \u003cli\u003eInspect slide and seat surfaces — replace if scored or cracked\u003c\/li\u003e\n  \u003cli\u003eRecommended to test under low pressure first before returning to service\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this replacement kit for: pool and spa technicians, maintenance professionals, and experienced DIY pool owners who need an OEM-compatible piston shaft for Pentair push-pull slide valves. If you maintain Pentair equipment and require the specific Pentair 263055 shaft (CMP 25831-110-100, catalog 4600-3055), this kit lets you repair the internal mechanism without replacing the entire valve assembly, saving time and parts cost while keeping original Pentair specifications intact.\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: Is this kit the correct replacement for Pentair part 263055?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. This kit matches Pentair 263055 and corresponds to CMP 25831-110-100 and catalog 4600-3055 for direct replacement.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do I need special tools to install the piston shaft kit?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No special tools are required—standard hand tools and basic plumbing knowledge are usually sufficient.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":56837389156692,"sku":"B004VU8KCU","price":108.05,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/pentair-263055-front-view.jpg?v=1787059444","url":"https:\/\/gardenluxe.co.uk\/products\/pentair-piston-shaft-assembly-replacement-kit-for-263055-slide-valve-pvc-pool-spa-repair-includes-shaft-and-seals","provider":"Gardenluxe Uk","version":"1.0","type":"link"}