{"product_id":"pss-shaft-seal-1-inch-shaft-1-5-inch-stern-tube-02-100-112","title":"PSS Shaft Seal 1\" Shaft x 1-1\/2\" Stern Tube – 02-100-112","description":"\u003ch2\u003ePSS Shaft Seal – 1\" Shaft x 1-1\/2\" Stern Tube | 02-100-112\u003c\/h2\u003e\u003cp\u003eThe PSS 02-100-112 is a Type A mechanical face shaft seal designed to replace a conventional stuffing box on inboard boats with a 1\" propeller shaft and a 1-1\/2\" to 1-5\/8\" stern tube. Instead of packing that requires periodic adjustment and intentional dripping, the PSS uses a carbon-graphite stationary sealing face and a stainless-steel rotor to create a dripless seal that requires minimal routine maintenance.\u003c\/p\u003e\u003cp\u003eThe result is a dry bilge, no shaft wear from packing friction, and no need to haul the boat just to re-pack the gland. PSS seals are installed as standard equipment by builders and are accepted by the USCG.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 02-100-112 (also 02100112)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShaft Diameter:\u003c\/strong\u003e 1\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStern Tube Diameter:\u003c\/strong\u003e 1-1\/2\" to 1-5\/8\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Type A mechanical face seal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompressed Installation Length:\u003c\/strong\u003e approx. 6-1\/4\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length:\u003c\/strong\u003e approx. 6.875\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRotor Diameter:\u003c\/strong\u003e approx. 2.375\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRequired Bellows Compression:\u003c\/strong\u003e approx. 3\/4\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1,361 g (3 lbs)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 839662006972\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDripless mechanical face seal — eliminates the need for packing adjustment and intentional dripping\u003c\/li\u003e\n\u003cli\u003eCarbon-graphite stationary sealing face paired with a stainless-steel rotor\u003c\/li\u003e\n\u003cli\u003eEliminates shaft wear caused by packing friction\u003c\/li\u003e\n\u003cli\u003eHose-barb fitting for venting or cooling-water feed depending on vessel speed and installation\u003c\/li\u003e\n\u003cli\u003eAccepted by the USCG; installed as standard equipment by many builders\u003c\/li\u003e\n\u003cli\u003eReduces bilge water accumulation and associated corrosion\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatible Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eInboard marine propulsion systems with a \u003cstrong\u003e1\" propeller shaft\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eStern tubes measuring \u003cstrong\u003e1-1\/2\" to 1-5\/8\"\u003c\/strong\u003e outside diameter at the bellows attachment point\u003c\/li\u003e\n\u003cli\u003eReplacement for conventional stuffing boxes on sailboats and powerboats\u003c\/li\u003e\n\u003cli\u003eNew builds and refit installations requiring a dripless shaft seal\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment Note\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eBoth measurements are required to order correctly.\u003c\/strong\u003e Do not select this seal by shaft diameter alone. Confirm both the \u003cstrong\u003e1\" shaft diameter\u003c\/strong\u003e and the \u003cstrong\u003e1-1\/2\" to 1-5\/8\" stern-tube diameter\u003c\/strong\u003e, along with available installation length around the shaft. PSS specifically advises confirming the stern-tube diameter before ordering — this is the most common sizing error.\u003c\/p\u003e\u003ch3\u003eCross-Reference \/ Alternate Part Numbers\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e02-100-112\u003c\/li\u003e\n\u003cli\u003e02100112\u003c\/li\u003e\n\u003cli\u003e730-02100112 (distributor reference)\u003c\/li\u003e\n\u003cli\u003e1918614 (retail reference)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eRelated Products\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/pss-02078112-pss-shaft-seal-7-8\"\u003ePSS Shaft Seal – 7\/8\" Shaft\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/pss-02114214-pss-shaft-seal-1-1-4-shaft\"\u003ePSS Shaft Seal – 1-1\/4\" Shaft\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/pss-02138214-pss-shaft-seal-1-3-8-shaft\"\u003ePSS Shaft Seal – 1-3\/8\" Shaft\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/pss-shaft-seal-2-1-2-shaft-x-3-1-2-stern-tube-02-212-312\"\u003ePSS Shaft Seal – 2-1\/2\" Shaft x 3-1\/2\" Stern Tube\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eParts Desk Insights\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eBest use case:\u003c\/strong\u003e The PSS seal is the right upgrade for any inboard boat owner who is tired of adjusting packing, dealing with bilge water from the stuffing box, or hauling the boat to re-pack the gland. It’s particularly well suited to boats that spend extended time in the water, where a conventional stuffing box requires more frequent attention.\u003c\/p\u003e\u003cp\u003eThe most common ordering mistake is measuring only the shaft. For this seal (02-100-112), the critical second number is the stern tube: \u003cstrong\u003e1-1\/2\" to 1-5\/8\"\u003c\/strong\u003e. Measure the outside diameter of the stern tube where the bellows will attach — not the shaft log bore — before ordering. If your stern tube falls outside this range, a different PSS model is required. Also confirm you have at least 6-1\/4\" of clear installation length around the shaft before the coupling or cutlass bearing.\u003c\/p\u003e","brand":"LNS","offers":[{"title":"Default Title","offer_id":51250770182180,"sku":"752-02100112","price":722.39,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/752-02112212_269abf69-95d4-483d-8f40-0ca8f91b6f5a.jpg?v=1786509876","url":"https:\/\/marisolmarine.com\/products\/pss-shaft-seal-1-inch-shaft-1-5-inch-stern-tube-02-100-112","provider":"Marisol Marine Company","version":"1.0","type":"link"}