{"product_id":"performance-drive-belt-tensioner-kit-for-toyota-tundra-2005-2012-4-0l","title":"Performance Drive Belt Tensioner Kit for Toyota Tundra (2005-2012) 4.0L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eHeavy-Duty Drive Belt Tensioner \u0026amp; Idler Pulley Kit for 2005-2012 Toyota Tundra (XK30 \/ XK50)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Performance Drive Belt Tensioner Kit replaces worn dynamic tensioners and idler pulleys on the 2005-2012 Toyota Tundra 4.0L to eliminate accessory belt slip, pulley bearing whine, and parasitic drive drag.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Toyota Tundra Belt Drive Degradation\u003c\/h3\u003e\n\u003cp\u003eFactory front accessory drive components on high-mileage \u003cstrong\u003e1GR-FE\u003c\/strong\u003e engines suffer from progressive damping spring fatigue and bearing seal breakdown. Repeated engine bay heat cycling causes the factory sealed bearings to purge grease, resulting in dry bearing friction, chirping, and pulley misalignment. When the internal torsional spring within OEM tensioner \u003cstrong\u003e16620-31013\u003c\/strong\u003e weakens, belt surface contact degrades under heavy alternator and water pump loads, causing accelerated belt glazing, battery charging loss, and risk of sudden belt detachment under load.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis heavy-duty drive belt tensioner and idler pulley kit restores factory drive geometry and calibrated belt tension across the entire accessory system. Manufactured with precision-cast aluminum housings and heavy-duty, high-temperature deep-groove ball bearings, each pulley resists radial runout and premature grease degradation. The dynamic tensioner dampens severe torsional crankshaft harmonics, maintaining constant traction across the alternator, power steering, and air conditioning pulleys during harsh operating cycles.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1x Dynamic Drive Belt Tensioner Assembly (OE 16620-31013 \/ 16620-31012)\u003c\/li\u003e\n  \u003cli\u003e1x Upper Idler Pulley (OE 16603-31040 \/ 16603-0P030)\u003c\/li\u003e\n  \u003cli\u003e2x Lower Idler Pulleys (OE 16604-31020 \/ 16604-0P011)\u003c\/li\u003e\n  \u003cli\u003e1x Serpentine Drive Belt (OE 90916-A2001 \/ 90916-02571)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 20px;\"\u003e\n  \u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px; min-width: 300px;\"\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eFitment\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e2005-2012 Toyota Tundra\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eEngine \/ Chassis\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e1GR-FE \/ XK30, XK50\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eStock Output\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e236–270 hp \/ 266–278 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eReplaces OEM Part #\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e1662031013, 1662031012, 1660331040, 166030P030, 1660431020, 166040P011, 90916A2001, 9091602571\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2005-2006 Toyota Tundra Regular Cab \u0026amp; Access Cab (4.0L 1GR-FE V6)\u003c\/li\u003e\n  \u003cli\u003e2007-2012 Toyota Tundra Base Standard Cab \u0026amp; Double Cab (4.0L 1GR-FE V6)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions \u0026amp; Fitment Warnings\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the XK30 \/ XK50 Tundra?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2005-2012 Toyota Tundra equipped with the \u003cstrong\u003e1GR-FE\u003c\/strong\u003e 4.0L V6 engine. \u003cstrong\u003eThis kit does not fit 4.6L (1UR-FE), 4.7L (2UZ-FE), or 5.7L (3UR-FE) V8 engine models.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch4\u003eShould all idler pulleys and the tensioner be replaced at the same time?\u003c\/h4\u003e\n\u003cp\u003eYes, replacing the complete pulley set simultaneously ensures uniform bearing life, correct belt alignment, and prevents premature serpentine belt failure.\u003c\/p\u003e\n\n\u003ch3\u003eThe Toyota Durability Caliber\u003c\/h3\u003e\n\u003cp\u003eEngineered to handle the rigors of heavy payload hauling, off-road dust intrusion, and sustained highway towing, this replacement kit is designed to ensure dependable accessory drive operation under severe utility conditions.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67545401065720,"sku":"DS-ELEYKR4JI","price":80.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/performance-drive-belt-tensioner-kit-for-toyota-tundra-2005-2012-4-0l-1.jpg?v=1790722993","url":"https:\/\/performancechiptuning.com\/products\/performance-drive-belt-tensioner-kit-for-toyota-tundra-2005-2012-4-0l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}