{"product_id":"samson-pm4-5-1-lower-end-piston-repair-kit-734958","title":"Samson PM4 5:1 Lower End \/ Piston Repair Kit #734958","description":"\u003cdiv class=\"gleam-quick-specs\" style=\"background: #f5f5f5; border-radius: 5px; padding: 16px 20px; margin: 0 0 16px 0; font-family: Roboto,sans-serif;\" role=\"region\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #283c92; font-size: 16px; margin: 0 0 12px 0; border-bottom: 2px solid #283c92; padding: 0 0 6px 0;\"\u003eSpecifications\u003c\/div\u003e\n\u003cdiv class=\"gleam-tablewrap\" style=\"overflow-x: auto; margin: 0; padding: 0;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; border-spacing: 0; font-size: 14px; margin: 0;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background: #fff;\"\u003e\n\u003ctd style=\"padding: 7px 12px; font-weight: 600; color: #283c92; width: 45%;\"\u003eSamson Part #\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px;\"\u003e734958\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #eef0f9;\"\u003e\n\u003ctd style=\"padding: 7px 12px; font-weight: 600; color: #283c92;\"\u003eProduct Type\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px;\"\u003eLower End \/ Piston Repair Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fff;\"\u003e\n\u003ctd style=\"padding: 7px 12px; font-weight: 600; color: #283c92;\"\u003ePump Series\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px;\"\u003ePumpMaster 4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #eef0f9;\"\u003e\n\u003ctd style=\"padding: 7px 12px; font-weight: 600; color: #283c92;\"\u003ePump Ratio\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px;\"\u003e5:1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fff;\"\u003e\n\u003ctd style=\"padding: 7px 12px; font-weight: 600; color: #283c92;\"\u003eFits Pump #\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px;\"\u003e347120\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #eef0f9;\"\u003e\n\u003ctd style=\"padding: 7px 12px; font-weight: 600; color: #283c92;\"\u003ePump Configuration\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px;\"\u003ePM4 5:1 Stub Pump\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fff;\"\u003e\n\u003ctd style=\"padding: 7px 12px; font-weight: 600; color: #283c92;\"\u003eService Area\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px;\"\u003eLower Piston \/ Intermediate Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gleam-description\" style=\"font-family: Roboto,sans-serif; color: #333; max-width: 900px;\"\u003e\n\u003ch2 style=\"color: #283c92; font-size: 18px; margin-top: 0;\"\u003eSamson PM4 5:1 Lower End \/ Piston Repair Kit #734958\u003c\/h2\u003e\n\u003cp\u003eGenuine Samson lower piston repair kit for PumpMaster 4 5:1 stub pump #347120. Samson lists #734958 as a PM4 5:1 lower-end kit, while technical documentation identifies the serviced component more specifically as the piston or intermediate-valve assembly.\u003c\/p\u003e\n\u003cp\u003eThis kit is used to service internal components in the lower pumping section of the #347120 PM4 5:1 stub pump. It does not rebuild the pneumatic air motor or replace the main central-bar assembly.\u003c\/p\u003e\n\u003cdiv style=\"background: #eef0f9; border-radius: 5px; padding: 16px 20px; margin: 16px 0;\"\u003e\n\u003cp style=\"margin: 0; font-size: 14px;\"\u003eQuestions before ordering? Call \u003ca href=\"tel:+18178653707\" style=\"color: #283c92; font-weight: 600;\"\u003e(817) 865-3707\u003c\/a\u003e and our team will help confirm your PM4 model before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"color: #283c92; font-size: 15px; border-bottom: 2px solid #283c92; padding-bottom: 6px;\"\u003eCompatibility \u0026amp; Fitment\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px;\"\u003eManufacturer technical documentation specifically identifies #734958 for the \u003cstrong\u003ePM4 5:1 stub pump #347120\u003c\/strong\u003e. Do not assume that this piston kit fits the #348120 drum-length version or every PM4 5:1 configuration.\u003c\/p\u003e\n\u003cdiv class=\"gleam-faq\" role=\"region\"\u003e\n\u003ch3 style=\"color: #283c92; font-size: 16px; border-bottom: 2px solid #283c92; padding-bottom: 6px;\"\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdiv style=\"border: 1px solid #e0e0e0; border-radius: 5px; margin-bottom: 10px; overflow: hidden;\"\u003e\n\u003ch3 style=\"background: #eef0f9; color: #283c92; margin: 0; padding: 14px 18px; font-size: 15px;\"\u003eWhich pump uses #734958?\u003c\/h3\u003e\n\u003cp style=\"padding: 14px 18px; margin: 0; font-size: 14px; line-height: 1.7; color: #333;\"\u003eManufacturer documentation specifically identifies #734958 for PumpMaster 4 5:1 stub pump #347120.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #e0e0e0; border-radius: 5px; margin-bottom: 10px; overflow: hidden;\"\u003e\n\u003ch3 style=\"background: #eef0f9; color: #283c92; margin: 0; padding: 14px 18px; font-size: 15px;\"\u003eDoes #734958 fit the PM4 #348120 drum pump?\u003c\/h3\u003e\n\u003cp style=\"padding: 14px 18px; margin: 0; font-size: 14px; line-height: 1.7; color: #333;\"\u003eThe manufacturer documentation reviewed specifically assigns #734958 to #347120. The #348120 configuration uses different lower-section components, so confirm the correct kit before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #e0e0e0; border-radius: 5px; margin-bottom: 10px; overflow: hidden;\"\u003e\n\u003ch3 style=\"background: #eef0f9; color: #283c92; margin: 0; padding: 14px 18px; font-size: 15px;\"\u003eWhat part of the pump does this kit service?\u003c\/h3\u003e\n\u003cp style=\"padding: 14px 18px; margin: 0; font-size: 14px; line-height: 1.7; color: #333;\"\u003eIt services the lower piston or intermediate-valve components in the pump's fluid section.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cstyle\u003e\n.gleam-quick-specs .gleam-tablewrap,.gleam-quick-specs .table-wrapper{margin:0!important;padding:0!important;}\n.gleam-quick-specs table{margin:0!important;padding:0!important;border-spacing:0!important;border-collapse:collapse!important;}\n.gleam-quick-specs table tbody,.gleam-quick-specs table tr{margin:0!important;padding:0!important;height:auto!important;}\n.gleam-quick-specs table td,.gleam-quick-specs table th{padding:7px 12px!important;line-height:1.35!important;height:auto!important;vertical-align:middle!important;}\n.gleam-quick-specs{padding:16px 20px!important;margin-bottom:16px!important;}\n\u003c\/style\u003e","brand":"Samson","offers":[{"title":"Default Title","offer_id":53663692751141,"sku":"ALMSAM734958","price":59.41,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0758\/0037\/9685\/files\/Samson_OEM-Part.jpg?v=1787192936","url":"https:\/\/alamoequipment.com\/products\/samson-pm4-5-1-lower-end-piston-repair-kit-734958","provider":"Alamo Equipment Service","version":"1.0","type":"link"}