{"product_id":"atp-parts-za-517-clutch-flywheel-ring-gear","title":"ATP Parts ZA-517 Clutch Flywheel Ring Gear","description":"\u003ch2\u003eClutch Flywheel Ring Gear Overview\u003c\/h2\u003e\u003cp\u003eATP Parts ring gear ZA-517 is a direct-fit replacement for applications that use a 120-tooth flywheel ring gear with a 12.051-inch outside diameter. It restores starter engagement when worn or broken teeth prevent the engine from cranking properly.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e120-tooth ring gear for starter motor engagement\u003c\/li\u003e\n\u003cli\u003e12.051-inch outside diameter with 10.78-inch inside diameter\u003c\/li\u003e\n\u003cli\u003e0.475-inch thickness for the specified flywheel setup\u003c\/li\u003e\n\u003cli\u003eFront chamfer orientation for proper starter mesh\u003c\/li\u003e\n\u003cli\u003eOE-style fit and function for the original application\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eThis clutch flywheel ring gear is built for Nissan applications that match the listed tooth count and dimensions, including Nissan 280Z, 280ZX, 200SX, 510, 620, 720, 810, Maxima, and Van models in the fitment table. The ATP Parts ZA-517 ring gear is engineered to match the original part’s fit and function, helping maintain reliable starter engagement and consistent cranking performance. If the existing ring gear teeth are worn, chipped, or broken, replacement is the correct repair. This part cross-references Pioneer Automotive Industries FRG-634 and AMS Automotive 4470 for the same application.\u003c\/p\u003e\u003ch2\u003eWhat It Is Used For\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRepairing worn starter engagement teeth\u003c\/li\u003e\n\u003cli\u003eRestoring engine cranking when the ring gear is damaged\u003c\/li\u003e\n\u003cli\u003eReplacing a ring gear that no longer meshes correctly with the starter\u003c\/li\u003e\n\u003cli\u003eAddressing tooth wear from repeated starting cycles\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify tooth count, outside diameter, inside diameter, thickness, and chamfer orientation before installation. This part is listed for Nissan applications with 120 teeth and a 12.051-inch outside diameter, so matching the flywheel specification is essential. Confirm the vehicle application in the fitment table and compare the removed ring gear to the new part before assembly.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eATP Parts designs this ring gear to fit and function like the original component, supporting proper starter engagement and long service life in the specified application.\u003c\/p\u003e","brand":"ATP Parts","offers":[{"title":"Default Title","offer_id":53657807650997,"sku":"BBFB-ZA-517","price":51.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/AT_ZA517_Fro.jpg?v=1793602262","url":"https:\/\/www.partcatalog.com\/products\/atp-parts-za-517-clutch-flywheel-ring-gear","provider":"PartCatalog","version":"1.0","type":"link"}