{"title":"Pentair C \u0026 CC Series Centrifugal Pump (5 HP) Replacement Parts","description":"\u003cp\u003ePentair C \u0026amp; CC Series Centrifugal Pump (5 HP) parts, matched to the diagram. Click any number on the exploded view to see the part, price and stock. Leaking pump? It is usually the shaft seal or an o-ring. Losing prime? Start with the lid o-ring. Not sure what you have? Call us or bring the part into any of our Phoenix, Scottsdale, Chandler or Las Vegas stores and we'll match it.\u003c\/p\u003e","products":[{"product_id":"pentaircentrifugalpumpshaftsealu109433sspenu109433ss","title":"Pentair Centrifugal Pump Shaft Seal | U109-433SS","description":"\u003cdiv\u003e\n  \u003ch2\u003ePentair U109-433SS Shaft Seal (1-1\/4\") – For Sta-Rite C\/CC Series \u0026amp; D Series Commercial Pumps (3 HP \u0026amp; 5 HP)\u003c\/h2\u003e\n\n  \u003cp\u003e\n    The \u003cstrong\u003ePentair U109-433SS\u003c\/strong\u003e is a replacement \u003cstrong\u003emechanical shaft seal\u003c\/strong\u003e (commonly referenced as a\n    \u003cstrong\u003e1-1\/4\" shaft seal\u003c\/strong\u003e) used in select \u003cstrong\u003eSta-Rite \/ Pentair commercial pump\u003c\/strong\u003e models. This seal is installed\n    where the motor shaft passes through the pump seal plate to help prevent water from leaking along the shaft into the motor.\n    Replacing a worn shaft seal is a common fix for pump leaks that appear at the motor-to-pump connection area.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eKey Details\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e U109-433SS\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Mechanical shaft seal\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSeal Size:\u003c\/strong\u003e 1-1\/4\" (commonly listed)\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTypical Seal Material:\u003c\/strong\u003e Buna (rubber components) with standard mechanical seal faces\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePrimary Function:\u003c\/strong\u003e Helps stop leakage at the motor shaft \/ seal plate area\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eReplaces:\u003c\/strong\u003e U109-220 (older part reference)\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eCommon Compatibility\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eSta-Rite \/ Pentair \u003cstrong\u003eC Series\u003c\/strong\u003e and \u003cstrong\u003eCC Series\u003c\/strong\u003e centrifugal pumps (commonly 3 HP \u0026amp; 5 HP applications)\u003c\/li\u003e\n    \u003cli\u003ePentair \u003cstrong\u003eD Series\u003c\/strong\u003e commercial pumps\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eImportant:\u003c\/strong\u003e Always confirm your pump model and horsepower using your parts diagram to verify this exact seal is correct.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eCommon Signs the Shaft Seal Needs Replacement\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eWater leaking from the area between the pump and motor (seal plate \/ motor bracket area)\u003c\/li\u003e\n    \u003cli\u003eDripping or spraying that increases when the pump is running\u003c\/li\u003e\n    \u003cli\u003eRepeated moisture around the motor base (after confirming it is not plumbing-related)\u003c\/li\u003e\n    \u003cli\u003eSeal replacement is recommended any time the pump is opened for major service (impeller, diffuser, seal plate)\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eTurn off power at the breaker before servicing the pump.\u003c\/li\u003e\n    \u003cli\u003eMechanical seals have precision faces—keep them clean and avoid touching the sealing faces with oily\/dirty hands.\u003c\/li\u003e\n    \u003cli\u003eInspect the \u003cstrong\u003eshaft sleeve\u003c\/strong\u003e and sealing surfaces; a grooved or corroded sleeve can cause a new seal to fail early.\u003c\/li\u003e\n    \u003cli\u003eVerify there is no wobble in the motor bearings; excessive shaft play can shorten seal life.\u003c\/li\u003e\n    \u003cli\u003eAfter reassembly, confirm the pump primes normally and check for leaks during the first run.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eRelated Products\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=U109-433SS\"\u003eSearch: U109-433SS Shaft Seal\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=C23-58\"\u003eSearch: C23-58 Shaft Sleeve\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=C20-101\"\u003eSearch: C20-101 Sleeve Gasket\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=sta-rite%20C%20series%20pump%20parts\"\u003eSearch: Sta-Rite C Series Pump Parts\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=sta-rite%20CC%20series%20pump%20parts\"\u003eSearch: Sta-Rite CC Series Pump Parts\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=pentair%20D%20series%20pump%20parts\"\u003eSearch: Pentair D Series Pump Parts\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=pool%20pump%20o-ring%20lube\"\u003eSearch: Pool Pump O-Ring Lubricant\u003c\/a\u003e\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eInstallation \u0026amp; Maintenance Tips\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFix the cause, not just the leak:\u003c\/strong\u003e Overheating (running dry), poor water chemistry, or misalignment can shorten seal life.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eReplace the shaft sleeve if needed:\u003c\/strong\u003e A worn sleeve can cut into a new seal and cause repeat leaking.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eKeep the pump from running dry:\u003c\/strong\u003e Loss of prime can overheat the seal faces and damage the seal quickly.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAddress drips early:\u003c\/strong\u003e A small leak can lead to motor damage if water reaches the bearings or electrical components.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eO-ring lube note:\u003c\/strong\u003e Use silicone lubricant on housing O-rings\/gaskets only—do not grease mechanical seal faces.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n","brand":"Pentair","offers":[{"title":"Default Title","offer_id":52589955744060,"sku":"U109-433SS","price":109.99,"currency_code":"USD","in_stock":true}]}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0736\/3280\/9276\/collections\/pentair-c-cc-series-5hp-exploded-view.png?v=1790356460","url":"https:\/\/aquapoolsupply.com\/collections\/parts-list-pentair-c-cc-series-5hp.oembed","provider":"Aqua Pool Supply","version":"1.0","type":"link"}