{"product_id":"mercury-propeller-nut-kit-heavy-duty-135-400-hp","title":"Mercury 840383A2 Propeller Nut Kit HD 1.25 in Shaft Sport Master Verado","description":"\u003ch2\u003eMercury 840383A2 Propeller Nut Kit for HD 1.25 in Prop Shaft\u003c\/h2\u003e\n\n\u003cp\u003eThe Mercury 840383A2 Propeller Nut Kit is designed for heavy-duty 1.25-inch propeller shaft applications on select Mercury and MerCruiser high-performance gearcases and sterndrives. This kit is used with Mercury Sport Master, Torque Master I and II, Fleet Master, Verado 5.25-inch gearcases, and select MerCruiser Bravo I XR and XZ sterndrive applications where this propeller hardware is specified.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eMercury propeller nut kit\u003c\/li\u003e\n  \u003cli\u003ePart number: 840383A2\u003c\/li\u003e\n  \u003cli\u003eDesigned for HD \/ heavy-duty 1.25-inch propeller shaft applications\u003c\/li\u003e\n  \u003cli\u003eFits select Mercury Sport Master, Torque Master I, Torque Master II, Fleet Master, and Verado 5.25-inch gearcases\u003c\/li\u003e\n  \u003cli\u003eFits select MerCruiser Bravo I XR and XZ sterndrives\u003c\/li\u003e\n  \u003cli\u003eAlso used on Sport Master and shorty Sport Master Bravo I XR Sport sterndrives\u003c\/li\u003e\n  \u003cli\u003ePropeller nut torque specification: 55 ft-lb \/ 75 Nm\u003c\/li\u003e\n  \u003cli\u003eUsed for propeller installation and propeller hardware replacement\u003c\/li\u003e\n  \u003cli\u003eBest matched by gearcase, drive model, prop shaft diameter, hub system, thrust washer, and propeller nut requirement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFitment \/ Product Details\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Mercury\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 840383A2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Propeller nut kit \/ propeller hardware kit\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Heavy-duty propeller nut kit for select Mercury and MerCruiser gearcase and sterndrive applications\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEngine \/ Drive Types:\u003c\/strong\u003e Mercury Sport Master, Torque Master I, Torque Master II, Fleet Master, Verado 5.25-inch gearcase, MerCruiser Bravo I XR, Bravo I XZ, Sport Master, and shorty Sport Master Bravo I XR Sport sterndrive applications\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHP Range:\u003c\/strong\u003e Application-specific; match by gearcase, drive model, prop shaft diameter, hub system, and propeller hardware requirement\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProp Shaft Diameter:\u003c\/strong\u003e 1.25 in heavy-duty propeller shaft\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGearcase Applications:\u003c\/strong\u003e Mercury Sport Master, Torque Master I, Torque Master II, Fleet Master, and Verado 5.25 in diameter gearcase\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSterndrive Applications:\u003c\/strong\u003e MerCruiser Bravo I XR, Bravo I XZ, Sport Master, and shorty Sport Master Bravo I XR Sport sterndrives\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTorque Specification:\u003c\/strong\u003e 55 ft-lb \/ 75 Nm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAssembly Location:\u003c\/strong\u003e Propeller shaft \/ propeller hardware assembly\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFitment Note:\u003c\/strong\u003e Match part number 840383A2 to your engine or drive model, gearcase type, 1.25-inch prop shaft diameter, Flo-Torq hub, thrust washer, propeller nut requirement, and owner’s manual before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003ePropeller nut kit components for compatible HD 1.25-inch prop shaft applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eExpanded Fitment\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMercury Sport Master Gearcase:\u003c\/strong\u003e Use with HD 1.25-inch propeller shaft applications where 840383A2 is specified\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMercury Torque Master I Gearcase:\u003c\/strong\u003e Use with compatible HD 1.25-inch propeller shaft applications\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMercury Torque Master II Gearcase:\u003c\/strong\u003e Use with compatible HD 1.25-inch propeller shaft applications\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMercury Fleet Master Gearcase:\u003c\/strong\u003e Use where the 1.25-inch heavy-duty prop shaft and 840383A2 kit are specified\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMercury Verado 5.25 in Gearcase:\u003c\/strong\u003e Use with compatible HD 1.25-inch propeller shaft applications\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMerCruiser Bravo I XR Sterndrive:\u003c\/strong\u003e Use where propeller nut kit 840383A2 is specified\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMerCruiser Bravo I XZ Sterndrive:\u003c\/strong\u003e Use where propeller nut kit 840383A2 is specified\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSport Master Bravo I XR Sport Sterndrive:\u003c\/strong\u003e Use with compatible Sport Master and shorty Sport Master applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy You Should Buy\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eCorrect Mercury propeller nut kit for applications requiring 840383A2\u003c\/li\u003e\n  \u003cli\u003eDesigned specifically for heavy-duty 1.25-inch propeller shaft applications\u003c\/li\u003e\n  \u003cli\u003eSupports secure propeller installation on compatible high-performance Mercury and MerCruiser gearcases\u003c\/li\u003e\n  \u003cli\u003eUseful for propeller service, propeller replacement, missing hardware replacement, and hub system maintenance\u003c\/li\u003e\n  \u003cli\u003eClear 55 ft-lb \/ 75 Nm torque specification helps support proper installation\u003c\/li\u003e\n  \u003cli\u003eBest selected by exact part number, prop shaft diameter, gearcase type, drive model, and owner’s manual application\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eMercury Sport Master propeller nut replacement\u003c\/li\u003e\n  \u003cli\u003eMercury Torque Master I and II propeller hardware service\u003c\/li\u003e\n  \u003cli\u003eMercury Fleet Master propeller nut kit replacement\u003c\/li\u003e\n  \u003cli\u003eMercury Verado 5.25-inch gearcase propeller hardware service\u003c\/li\u003e\n  \u003cli\u003eMerCruiser Bravo I XR propeller nut replacement\u003c\/li\u003e\n  \u003cli\u003eMerCruiser Bravo I XZ propeller hardware service\u003c\/li\u003e\n  \u003cli\u003eShorty Sport Master Bravo I XR Sport sterndrive propeller hardware replacement\u003c\/li\u003e\n  \u003cli\u003eApplications requiring Mercury 840383A2\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWhat is Mercury 840383A2?\u003c\/strong\u003e Mercury 840383A2 is a propeller nut kit for select heavy-duty 1.25-inch propeller shaft applications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWhat prop shaft diameter does this kit fit?\u003c\/strong\u003e This kit is for HD \/ heavy-duty 1.25-inch propeller shaft applications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWhat gearcases does this fit?\u003c\/strong\u003e This kit is used on Mercury Sport Master, Torque Master I and II, Fleet Master, and Verado 5.25-inch gearcase applications where specified.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDoes this fit MerCruiser sterndrives?\u003c\/strong\u003e Yes. It is used on select MerCruiser Bravo I XR and XZ sterndrives, plus Sport Master and shorty Sport Master Bravo I XR Sport sterndrives.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWhat is the propeller nut torque specification?\u003c\/strong\u003e Torque the propeller nut to 55 ft-lb \/ 75 Nm.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIs this the same as the 1-inch prop shaft nut kit?\u003c\/strong\u003e No. This kit is for HD 1.25-inch propeller shaft applications. Confirm your prop shaft diameter before ordering.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDo I need to check the hub and thrust washer?\u003c\/strong\u003e Yes. See your owner’s manual for the Flo-Torq hub, thrust washer, and propeller nut part numbers that best fit your engine or drive.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHow should I confirm fitment?\u003c\/strong\u003e Match part number 840383A2 to your engine or drive model, gearcase type, 1.25-inch prop shaft diameter, Flo-Torq hub, thrust washer, propeller nut requirement, and owner’s manual before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":48556395266280,"sku":"840383A2","price":51.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0713\/9927\/6776\/files\/840383A2_main.png?v=1779475072","url":"https:\/\/wakeboss.com\/products\/mercury-propeller-nut-kit-heavy-duty-135-400-hp","provider":"Wakeboss","version":"1.0","type":"link"}