{"product_id":"17-95372-18-95295-12-8035161-26-95348-25-16131-27-95220-prop-shaft-seal-kit-with-shear-pin-for-mercury-mariner-2-5hp-3-3hp-jlm-marine","title":"17-95372 18-95295 12-8035161 26-95348 25-16131 27-95220 Prop Shaft Seal Kit with Shear Pin for Mercury Mariner 2.5HP 3.3HP | JLM Marine","description":"\u003ch2\u003eProp Shaft Seal Kit with Shear Pin – Fits Mercury Mariner 2.5HP \u0026amp; 3.3HP Outboard Motors\u003c\/h2\u003e\n\n\u003cp\u003eThis comprehensive prop shaft seal kit is designed for \u003cstrong\u003eMercury Mariner 2.5HP and 3.3HP 4-stroke outboard engines\u003c\/strong\u003e with serial number \u003cstrong\u003e0R131842 or higher\u003c\/strong\u003e. It provides all the essential seals, gaskets, and pins needed to service your lower gearcase unit and maintain optimal propeller shaft performance.\u003c\/p\u003e\n\n\u003cp\u003eThis kit directly replaces OEM part numbers \u003cstrong\u003e17-95372, 18-95295, 12-8035161, 26-95348, 25-16131, and 27-95220\u003c\/strong\u003e, offering a complete solution for lower unit maintenance in a single package.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eIncludes oil seal, gaskets, o-ring, shear pins, and cotter pin for complete lower unit service\u003c\/li\u003e\n  \u003cli\u003eCompatible with Mercury Mariner 4-stroke outboards (serial 0R131842+)\u003c\/li\u003e\n  \u003cli\u003eDirect replacement for multiple OEM part numbers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Cross-Reference\u003c\/h2\u003e\n\n\u003cp\u003eUse this table to confirm equivalent part numbers across OEM and aftermarket brands.\u003c\/p\u003e\n\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\"\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eBrand\u003c\/th\u003e\n      \u003cth\u003ePart Number\u003c\/th\u003e\n      \u003cth\u003eNotes\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMercury\u003c\/td\u003e\n      \u003ctd\u003e17-95372, 17-815111, 17-815111002, 17-815111Q02\u003c\/td\u003e\n      \u003ctd\u003eProp Shaft Shear Pin\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMercury\u003c\/td\u003e\n      \u003ctd\u003e18-95295, 18-95295Q\u003c\/td\u003e\n      \u003ctd\u003ePropeller Nut Cotter Pin\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMercury\u003c\/td\u003e\n      \u003ctd\u003e26-95348\u003c\/td\u003e\n      \u003ctd\u003eOil Seal\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMercury\u003c\/td\u003e\n      \u003ctd\u003e25-16131\u003c\/td\u003e\n      \u003ctd\u003eO-ring\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMercury\u003c\/td\u003e\n      \u003ctd\u003e27-95220\u003c\/td\u003e\n      \u003ctd\u003eDrain Gasket\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMercury\u003c\/td\u003e\n      \u003ctd\u003e12-8035161\u003c\/td\u003e\n      \u003ctd\u003eGasket\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eCompatible Engine Models\u003c\/h2\u003e\n\n\u003cp\u003eConfirm your engine model\/year in the table below. For Mercury owners, here's a guide to help you identify your engine's serial\/model: \u003ca href=\"https:\/\/jlmmarine.com\/blogs\/serial-number-guide\/mercury-outboard-serial-number-guide\" rel=\"nofollow noopener\" target=\"_blank\"\u003eMercury Serial Number Guide\u003c\/a\u003e. You can also review exploded diagrams to verify part numbers: \u003ca href=\"https:\/\/jlmmarine.com\/blogs\/diagrams\/mercury-parts-catalog\" rel=\"nofollow noopener\" target=\"_blank\"\u003eMercury Parts Diagrams \u0026amp; Catalog\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\"\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eBrand\u003c\/th\u003e\n      \u003cth\u003eModel\u003c\/th\u003e\n      \u003cth\u003eRated HP\u003c\/th\u003e\n      \u003cth\u003eStroke\u003c\/th\u003e\n      \u003cth\u003eNotes\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMercury Mariner\u003c\/td\u003e\n      \u003ctd\u003e2.5HP \u0026amp; 3.3HP\u003c\/td\u003e\n      \u003ctd\u003e2.5HP, 3.3HP\u003c\/td\u003e\n      \u003ctd\u003e4-Stroke\u003c\/td\u003e\n      \u003ctd\u003eSerial number 0R131842 or higher\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\"\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eSpecification\u003c\/th\u003e\n      \u003cth\u003eValue\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eApplication\u003c\/td\u003e\n      \u003ctd\u003eLower Gearcase Unit \/ Prop Shaft Service\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eEngine Type\u003c\/td\u003e\n      \u003ctd\u003e4-Stroke Outboard\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eCompatible HP\u003c\/td\u003e\n      \u003ctd\u003e2.5HP, 3.3HP\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eSerial Number Range\u003c\/td\u003e\n      \u003ctd\u003e0R131842 or higher\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eKit Type\u003c\/td\u003e\n      \u003ctd\u003eComplete Seal \u0026amp; Pin Kit\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003ePackage Contents\u003c\/h2\u003e\n\n\u003cp\u003eThis comprehensive kit includes all components needed for lower unit prop shaft service:\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cspan style=\"color:red;\"\u003e\u003cstrong\u003e2 x Shear Pin\u003c\/strong\u003e\u003c\/span\u003e (17-95372)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e1 x Cotter Pin\u003c\/strong\u003e (18-95295)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e1 x Oil Seal\u003c\/strong\u003e (26-95348)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e1 x Gasket\u003c\/strong\u003e (12-8035161)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e1 x O-ring\u003c\/strong\u003e (25-16131)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e2 x Drain Gasket\u003c\/strong\u003e (27-95220)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Guide\u003c\/h2\u003e\n\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePreparation:\u003c\/strong\u003e Disconnect the spark plug wire and remove the propeller nut and washer. Inspect the old cotter pin and remove it carefully.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRemove Propeller:\u003c\/strong\u003e Slide the propeller off the shaft. Check for fishing line or debris around the shaft and clean thoroughly.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInspect Shear Pin:\u003c\/strong\u003e Examine the existing shear pin for damage or shearing. If broken, remove both halves completely from the prop shaft.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReplace Oil Seal:\u003c\/strong\u003e Carefully pry out the old oil seal from the lower unit housing using a seal puller or flat tool. Clean the seal bore and press in the new seal evenly until seated.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInstall Gaskets \u0026amp; O-ring:\u003c\/strong\u003e Remove old drain gaskets and install new ones on drain\/fill plugs. Replace the o-ring as needed during lower unit service.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInstall New Shear Pin:\u003c\/strong\u003e Align the propeller hub with the shaft and insert the new shear pin through the aligned holes. Ensure it passes completely through both sides.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReinstall Propeller:\u003c\/strong\u003e Slide the propeller back onto the shaft, ensuring the shear pin is properly seated. Install the washer and propeller nut.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSecure with Cotter Pin:\u003c\/strong\u003e Insert the new cotter pin through the propeller nut castle slots and shaft hole. Bend the pin ends outward to lock in place.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinal Check:\u003c\/strong\u003e Verify all components are tight and secure. Rotate the propeller by hand to ensure smooth operation with no binding.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReconnect \u0026amp; Test:\u003c\/strong\u003e Reconnect the spark plug wire. Test the engine in a controlled environment before full operation.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How do I know if my shear pin is damaged?\u003c\/strong\u003e\u003cbr\u003e\nA: If your propeller spins freely without engaging forward\/reverse thrust, or if you hear unusual rattling from the lower unit, the shear pin has likely sheared. Remove the propeller to inspect—a broken pin will be visibly damaged or missing.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How often should I replace the seals and gaskets in this kit?\u003c\/strong\u003e\u003cbr\u003e\nA: Replace the oil seal and gaskets during routine lower unit service (typically every 100 hours or annually). Replace shear pins immediately when broken, and inspect drain gaskets whenever changing lower unit oil.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Will this kit fit Mercury Mariner 2-stroke engines?\u003c\/strong\u003e\u003cbr\u003e\nA: No, this kit is specifically designed for \u003cstrong\u003e4-stroke Mercury Mariner 2.5HP and 3.3HP engines with serial number 0R131842 or higher\u003c\/strong\u003e. Verify your engine model and serial number before purchasing.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What's the difference between the shear pins included and OEM pins?\u003c\/strong\u003e\u003cbr\u003e\nA: These aftermarket shear pins are manufactured to OEM specifications with comparable materials and shear strength. They provide the same protective function—breaking under impact to prevent costly lower unit damage.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can I reuse the old cotter pin?\u003c\/strong\u003e\u003cbr\u003e\nA: No, cotter pins should never be reused. Once bent, they lose their structural integrity and may fail to secure the propeller nut properly, creating a safety hazard.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Is this an OEM product or aftermarket?\u003c\/strong\u003e\u003cbr\u003e\nA: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How fast do you ship and how much does it cost?\u003c\/strong\u003e\u003cbr\u003e\nA: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What is your warranty and return policy?\u003c\/strong\u003e\u003cbr\u003e\nA: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused \u0026amp; in original condition); please see our policy page or reach out for instructions.\u003c\/p\u003e\n\n\u003ch2\u003eImportant Notes\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003eVerify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.\u003c\/li\u003e\n  \u003cli\u003eThis product is an aftermarket replacement part and is not an OEM component.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended to ensure safety and optimal performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Choose JLM MARINE?\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuality Assured:\u003c\/strong\u003e As a trusted manufacturer for over 20 years, we supply top marine brands globally.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFast Global Shipping:\u003c\/strong\u003e Free delivery worldwide in 5–15 days.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDirect from Manufacturer:\u003c\/strong\u003e Competitive pricing without compromising quality.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"JLM Marine","offers":[{"title":"Default Title","offer_id":51981023150393,"sku":"24PK067","price":20.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0885\/0433\/6697\/files\/12_f0dab45b-421b-4acb-8162-3f3be09b8964.jpg?v=1772414764","url":"https:\/\/jlmmarine.com\/products\/17-95372-18-95295-12-8035161-26-95348-25-16131-27-95220-prop-shaft-seal-kit-with-shear-pin-for-mercury-mariner-2-5hp-3-3hp-jlm-marine","provider":"JLM Marine Boat Parts Limited","version":"1.0","type":"link"}