{"product_id":"genuine-mazda-4th-gear-synchronizer-ring-m516-17-26y","title":"Genuine Mazda 4th Gear Synchronizer Ring • M516-17-26Y","description":"\u003cdiv\u003e\n\u003cp style=\"margin: 0 0 8px; font-size: calc(14px + 0.1vw);\"\u003e\u003cstrong\u003eGenuine Mazda M516-17-26Y 4th Gear Synchronizer Ring\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin: 0 0 8px; font-size: calc(14px + 0.1vw);\"\u003eReplacement Genuine Mazda 4th gear synchronizer ring for \u003cstrong\u003eMazda MX-5 Mk3 \/ Mk3.5 \/ Mk3.75 (NC) 5-speed manual gearbox\u003c\/strong\u003e applications listed in the compatibility table.\u003c\/p\u003e\n\n\u003cp style=\"margin: 0 0 8px; font-size: calc(14px + 0.1vw);\"\u003eA synchronizer ring, also known as a synchro ring or baulk ring, helps match the speed of the selected gear during gear changes. It allows the synchronizer hub and gear to engage smoothly, reducing gear clash and helping restore a cleaner, more positive shift feel.\u003c\/p\u003e\n\n\u003cp style=\"margin: 0 0 8px;\"\u003eThis part is used inside the manual gearbox and is commonly associated with 4th gear synchronizer operation on Mazda MX-5 NC 5-speed transmissions. It is an internal gearbox component and requires gearbox removal and strip-down to replace.\u003c\/p\u003e\n\n\u003cp style=\"margin: 0 0 8px;\"\u003eThis part is commonly replaced during gearbox rebuilds, when the gearbox shows symptoms such as crunching into 4th gear, difficult 4th gear selection, poor shift quality, worn synchronizer friction faces, or damage found during inspection of the manual transmission gearset.\u003c\/p\u003e\n\n\u003cul style=\"margin: 0 0 8px; padding-left: 18px;\"\u003e\n\u003cli\u003ePart type: Synchronizer ring \/ synchro ring \/ baulk ring\u003c\/li\u003e\n\u003cli\u003ePrimary use: 4th gear synchronization in the manual gearbox\u003c\/li\u003e\n\u003cli\u003eLocation: Inside manual transmission, synchronizer assembly\u003c\/li\u003e\n\u003cli\u003eQuantity per listed gear position: 1\u003c\/li\u003e\n\u003cli\u003eBrand: Genuine Mazda\u003c\/li\u003e\n\u003cli\u003ePart No.: M516-17-26Y\u003c\/li\u003e\n\u003cli\u003eAlso referenced as: M5161726Y\u003c\/li\u003e\n\u003cli\u003eSupersedes \/ cross-references: M506-17-26Y \/ M5061726Y\u003c\/li\u003e\n\u003cli\u003ePrimary Mazda application: MX-5 NC 5-speed manual gearbox, including N7 \/ N7S gearbox codes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp style=\"margin: 0 0 8px;\"\u003e\u003cstrong\u003eFitment advice:\u003c\/strong\u003e Designed for the Mazda MX-5 NC 5-speed manual gearbox applications listed in the compatibility table. This part is for manual gearbox internals and is not for automatic transmissions. For gearbox-swapped, previously rebuilt or competition-use vehicles, match the gearbox code and the synchronizer ring being replaced before final assembly.\u003c\/p\u003e\n\n\u003cp style=\"margin: 0 0 8px;\"\u003e\u003cstrong\u003eOther items to consider:\u003c\/strong\u003e When changing this part, you may also want to consider purchasing related gearbox rebuild items such as other synchronizer rings, hub\/sleeve components, bearings, circlips, selector fork components, input\/output shaft seals, gearbox gaskets or sealant, fresh Mazda-approved gearbox oil and any damaged or worn gearset hardware found during inspection.\u003c\/p\u003e\n\n\u003cp style=\"margin: 0 0 8px;\"\u003e\u003cstrong\u003eUseful tools \/ consumables:\u003c\/strong\u003e Transmission jack, socket set, torque wrench, circlip pliers, bearing pullers, press tools, clean assembly bench, gearbox oil, brake cleaner, lint-free cloths, marking tools and the Mazda workshop manual for gearbox strip-down and rebuild procedure.\u003c\/p\u003e\n\n\u003cp style=\"margin: 0 0 8px;\"\u003e\u003cstrong\u003eDifficulty guide:\u003c\/strong\u003e DIY Difficulty: Advanced. Synchronizer ring replacement requires gearbox removal and internal gearbox disassembly. Correct inspection, orientation, clearance checks and reassembly procedure are critical for smooth gear engagement and gearbox reliability.\u003c\/p\u003e\n\n\u003cp style=\"margin: 0 0 8px;\"\u003e\u003cem\u003eWhy Genuine Mazda?\u003c\/em\u003e Genuine Mazda synchronizer rings are manufactured to the original gearbox specification for correct friction material, cone angle, clearances and engagement feel. Using the correct Genuine Mazda part helps maintain shift quality, reduces the risk of premature wear and ensures compatibility with the Mazda synchronizer hub and gear assembly.\u003c\/p\u003e\n\n\u003cp style=\"margin: 0 0 8px;\"\u003e\u003cstrong\u003eWhy buy from Mazspec?\u003c\/strong\u003e Mazspec specialises in Mazda and MX-5 parts, including gearbox, driveline and service components. We source genuine Mazda parts through trusted OE channels and can help with related gearbox rebuild items, oils, seals and practical parts advice for the job.\u003c\/p\u003e\n\n\u003cp style=\"margin: 0 0 8px;\"\u003e\u003cstrong\u003eWhat’s in the box:\u003c\/strong\u003e One Genuine Mazda synchronizer ring.\u003c\/p\u003e\n\n\u003cp style=\"margin: 0 0 8px;\"\u003e\u003cstrong\u003eInstallation notes:\u003c\/strong\u003e Inspect the mating gear cone, hub sleeve, selector fork, bearings and related gearbox components during rebuild. Replace any worn or damaged associated parts before final assembly. Refill with the correct gearbox oil and check gear selection operation before returning the vehicle to service.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Genuine Mazda","offers":[{"title":"Default Title","offer_id":57641695510910,"sku":"M516-17-26Y","price":74.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/8274\/9408\/files\/M516-17-26Y.png?v=1783162025","url":"https:\/\/www.mazspec.co.uk\/products\/genuine-mazda-4th-gear-synchronizer-ring-m516-17-26y","provider":"MazSpec","version":"1.0","type":"link"}