{"product_id":"neutral-switch-shift-8m0052939-fit-mercury-cmd-qsd-2-8-ei-170-210-220-230","title":"Neutral Switch Shift 8M0052939 Fit Mercury CMD QSD 2.8 EI 170 210 220 230","description":"\u003ch2\u003eNeutral Switch Shift for Mercury CMD QSD 2.8 EI\u003c\/h2\u003e\u003cp\u003eThis neutral switch shift assembly, referencing OEM cross-reference 8M0052939, engages and disengages the starter circuit only when the outdrive is in neutral for safe engine start. It is designed for Mercury CMD QSD 2.8 EI engines in 170, 210, 220, and 230 horsepower ratings.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis neutral switch shift 8M0052939 is a direct-acting electrical safety component that prevents the engine from starting in gear. It serves marine diesel applications by interrupting the start signal unless the shift mechanism is confirmed neutral. This neutral switch shift is built for reliable operation in the harsh engine bay environment.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eReplacement part number 8M0052939 ensures match to original specification.\u003c\/li\u003e\n\u003cli\u003eRugged switch housing resists moisture and vibration.\u003c\/li\u003e\n\u003cli\u003ePrecise contact alignment provides consistent signal integrity.\u003c\/li\u003e\n\u003cli\u003eCorrosion-resistant terminals maintain a secure electrical connection.\u003c\/li\u003e\n\u003cli\u003eCompact design fits within the existing shift linkage assembly.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Mercury CMD QSD 2.8 EI 170\u003c\/li\u003e\n\u003cli\u003efor Mercury CMD QSD 2.8 EI 210\u003c\/li\u003e\n\u003cli\u003efor Mercury CMD QSD 2.8 EI 220\u003c\/li\u003e\n\u003cli\u003efor Mercury CMD QSD 2.8 EI 230\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eReplace a failed neutral safety switch during routine engine maintenance.\u003c\/li\u003e\n\u003cli\u003eInstall when troubleshooting intermittent starting failure in neutral.\u003c\/li\u003e\n\u003cli\u003eUse as a direct replacement for worn or corroded original components.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number(s)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8M0052939\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNeutral switch shift\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Engine Series\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMercury CMD QSD 2.8 EI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHorsepower Ratings\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e170, 210, 220, 230\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch4\u003eGood To Know\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e How does this neutral switch shift prevent accidental starting? \u003cstrong\u003eA:\u003c\/strong\u003e It opens the starter circuit unless the shift lever is in neutral, so the engine cannot crank while in forward or reverse gear.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e What are common signs of a failing neutral safety switch? \u003cstrong\u003eA:\u003c\/strong\u003e The engine may not crank in neutral at all, or it may crank even when the shifter is in gear, both indicating a need for replacement.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eSlight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.\u003c\/em\u003e\u003c\/p\u003e","brand":"Part Outfitters","offers":[{"title":"Default Title","offer_id":46610550030522,"sku":"ZZ3F09055","price":101.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/2476\/1786\/files\/s-l1600_de9a8a53-3476-4199-9617-08b471198e59.jpg?v=1789000858","url":"https:\/\/partoutfitters.com\/products\/neutral-switch-shift-8m0052939-fit-mercury-cmd-qsd-2-8-ei-170-210-220-230","provider":"Part Outfitters","version":"1.0","type":"link"}