{"product_id":"arp-toyota-1nzfe-1-5l-4-cylinder-dohc-main-stud-kit","title":"ARP Toyota 1NZFE 1.5L 4-cylinder DOHC Main Stud Kit","description":"\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e \u003cspan itemprop=\"sku\"\u003e203-5408\u003c\/span\u003e | \u003cstrong\u003eUPC:\u003c\/strong\u003e 672036044121\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eARP Toyota 1NZFE 1.5L 4-cylinder DOHC Main Stud Kit 2000-2011 Yaris Echo Scion\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe ARP 203-5408 Main Stud Kit upgrades the Toyota 1NZ-FE 1.5L 4-cylinder DOHC engine in models like Yaris Echo and Scion xA xB from 2000 to 2011. Factory main bolts often fail under increased power or boost so these studs provide consistent clamping force to secure main caps and prevent bearing damage. Engine builders rely on this kit for reliable bottom-end strength in tuned street and track applications.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eARP2000 Alloy:\u003c\/strong\u003e Forged steel studs rated at 220,000 PSI tensile strength and 155,000 PSI yield strength for extreme durability over stock fasteners\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Kit Contents:\u003c\/strong\u003e Includes main studs hardened parallel washers and chrome moly 12-point nuts for full replacement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Design:\u003c\/strong\u003e Precision rolled threads resist fatigue and galling during repeated installations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorrosion Protection:\u003c\/strong\u003e Black oxide finish guards against rust in harsh engine environments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAssembly Ready:\u003c\/strong\u003e Supplied with ARP Ultra-Torque lubricant for accurate torque values\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eConfirm engine code 1NZ-FE prior to installation\u003c\/li\u003e\n\u003cli\u003eApply ARP Ultra-Torque lube to threads and under nut faces\u003c\/li\u003e\n\u003cli\u003ePacked in protective retail box for damage-free delivery\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eProfessional installation recommended.\u003c\/li\u003e\n\u003cli\u003eEngine must be fully disassembled to access main caps\u003c\/li\u003e\n\u003cli\u003eTorque studs to ARP specs in 3 stages using calibrated torque wrench\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eThis Part Fits\u003c\/h4\u003e\n\u003ctable border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eSubmodel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2000-2005\u003c\/td\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003eEcho\u003c\/td\u003e\n\u003ctd\u003e1.5L 1NZ-FE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2004-2006\u003c\/td\u003e\n\u003ctd\u003eScion\u003c\/td\u003e\n\u003ctd\u003exA\u003c\/td\u003e\n\u003ctd\u003e1.5L 1NZ-FE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2004-2006\u003c\/td\u003e\n\u003ctd\u003eScion\u003c\/td\u003e\n\u003ctd\u003exB\u003c\/td\u003e\n\u003ctd\u003e1.5L 1NZ-FE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2006-2011\u003c\/td\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003eYaris\u003c\/td\u003e\n\u003ctd\u003e1.5L 1NZ-FE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eWhy Choose ARP?\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eTrusted by racers since 1968 in NHRA NASCAR and drag applications\u003c\/li\u003e\n\u003cli\u003eUSA-made with heat-treated forgings exceeding SAE standards\u003c\/li\u003e\n\u003cli\u003eBacked by limited lifetime warranty on fastener failure\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Will this kit fit my 2008 Toyota Yaris 1.5L?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Yes it fits all 2006-2011 Toyota Yaris models equipped with the 1NZ-FE 1.5L DOHC engine. Verify your engine code on the block.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What material and strength rating do these studs have?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Constructed from proprietary ARP2000 alloy steel with 220,000 PSI ultimate tensile strength and 155,000 PSI yield strength far exceeding OEM bolts.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What is the warranty and reusability?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e ARP offers a limited lifetime warranty against breakage when installed torqued per instructions. Studs are fully reusable with proper cleaning and lubing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eShipping \u0026amp; Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMethod:\u003c\/strong\u003e UPS Ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock - ships same or next business day\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Compact box 9 x 7 x 1 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.95 lbs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ARP","offers":[{"title":"Default Title","offer_id":39861244067919,"sku":"ARP203-5408","price":159.93,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/arp-toyota-1nzfe-1_5l-4-cylinder-dohc-main-stud-kit-arp.jpg?v=1768369971","url":"https:\/\/www.blackopsautoworks.com\/products\/arp-toyota-1nzfe-1-5l-4-cylinder-dohc-main-stud-kit","provider":"Black Ops Auto Works","version":"1.0","type":"link"}