{"product_id":"watergesmeerde-schroefas-afdichting-25mm-43mm-koker-828254","title":"Water-lubricated propeller shaft seal 25MM (43mm tube) - 828254","description":"\u003cp\u003eThis \u003cstrong\u003ewater-lubricated propeller shaft seal\u003c\/strong\u003e is a proven, low-maintenance solution for boats with a \u003cstrong\u003e25 mm propeller shaft\u003c\/strong\u003e and a \u003cstrong\u003e43 mm stern tube\u003c\/strong\u003e . The seal replaces, among others, the \u003cstrong\u003eVolvo Penta 828254\u003c\/strong\u003e and is widely used in both maintenance and repowering of propeller shaft systems.\u003c\/p\u003e\n\u003cp\u003eThe rubber stuffy box uses \u003cstrong\u003ewater lubrication combined with a grease reservoir\u003c\/strong\u003e , minimizing friction, wear, and leakage. Annual lubrication with propeller shaft grease is sufficient for reliable operation.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"NL\" style=\"mso-ansi-language: NL;\"\u003eThis water-lubricated propeller shaft seal is also available with \u003cb\u003ea water inlet for additional lubrication and optimal cooling\u003c\/b\u003e . This ensures less friction, a longer service life, and a more reliable seal, especially at higher speeds or during intensive use.\u003cspan style=\"mso-spacerun: yes;\"\u003e\u0026nbsp;\u003c\/span\u003e\u003ca href=\"\/products\/propeller-shaft-seal-water-lubricated-25mm-43mm-tube-828254\" title=\"Propeller shaft seal, water-lubricated, 25mm (43mm tube) with water inlet - 828254\"\u003e\u003ci\u003eView the version with water inlet here.\u003c\/i\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"mso-ansi-language: NL;\" lang=\"NL\"\u003ePrefer to order the original Volvo Penta 828254? \u003ca href=\"\/products\/volvo-penta-propeller-shaft-seal-25mm-shaft-828254\" title=\"Volvo Penta propeller shaft seal 25MM shaft - 828254\"\u003eOrder the original Volvo Penta propeller shaft seal here.\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eTechnical operation\u003c\/h2\u003e\n\u003cp\u003eThis propeller shaft seal combines a flexible rubber housing with internal sealing lips. During operation, outside water reaches the seal through the stern tube, ensuring continuous cooling and lubrication of the sealing lips. This creates a durable water barrier without excessive wear on the propeller shaft.\u003c\/p\u003e\n\u003cp\u003eThe seal is mounted \u003cstrong\u003ebelow the waterline\u003c\/strong\u003e and is suitable for mounting on almost any conventional propeller shaft installation.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eDimensions\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eAxle diameter (A):\u003c\/strong\u003e 25.00 mm\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePropeller shaft tube (B):\u003c\/strong\u003e 43.00 mm\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eLength (L):\u003c\/strong\u003e 105.00 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePlease note: the straight part of the stern tube on which the seal is mounted must be at least \u003cstrong\u003e38 mm\u003c\/strong\u003e long.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eKey Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSuitable as a replacement for Volvo Penta 828254\u003c\/li\u003e\n\u003cli\u003eQuick and easy installation\u003c\/li\u003e\n\u003cli\u003eWater lubricated for low friction and long life\u003c\/li\u003e\n\u003cli\u003eVery low maintenance (lubrication once a year)\u003c\/li\u003e\n\u003cli\u003eCompact construction\u003c\/li\u003e\n\u003cli\u003eIdeal for repowering or overhaul\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eInstallation \u0026amp; maintenance\u003c\/h2\u003e\n\u003cp\u003eThe propeller shaft and stern tube should be clean, smooth, and free of burrs. After installation, the supplied propeller shaft grease is applied to the seal. After launching, the seal should be pressed against the propeller shaft several times to activate the water lubrication and bleed the Volvo Seal.\u003c\/p\u003e\n\u003cp\u003eUnder normal conditions \u003cstrong\u003e, lubrication once a year\u003c\/strong\u003e or every \u003cstrong\u003e200 operating hours\u003c\/strong\u003e is sufficient. Replacement is recommended after approximately \u003cstrong\u003e4 years or 500 operating hours\u003c\/strong\u003e .\u003c\/p\u003e\n\u003cp\u003e📄 \u003cstrong\u003eInstallation Guide:\u003c\/strong\u003e \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0597\/5873\/9631\/files\/stuffy-box-propeller-shaft-seal-installation-manual-en.pdf?v=1767619854\" target=\"_blank\" title=\"Stuffybox installation manual English\" rel=\"noopener\"\u003eView the official instructions (PDF)\u003c\/a\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eApplication\u003c\/h2\u003e\n\u003cp\u003eSuitable for motorboats and sailboats with a conventional propeller shaft installation. Widely used as an alternative to traditional grease gaskets and older rubber seals.\u003c\/p\u003e","brand":"Volvo Penta","offers":[{"title":"Default Title","offer_id":52345238618454,"sku":"SAAFWZ25","price":83.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/5873\/9631\/files\/Volvo_Seal_Stuffybox_watergesmeerd.png?v=1768645156","url":"https:\/\/marinedustrie.com\/products\/water-lubricated-propeller-shaft-seal-25mm-43mm-tube-828254","provider":"MarineDustrie","version":"1.0","type":"link"}