{"product_id":"performance-water-pump-timing-belt-kit-for-toyota-sienna-1998-2003-3-0l","title":"Performance Water Pump \u0026 Timing Belt Kit for Toyota Sienna (1998-2003) 3.0L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eHeavy-Duty Water Pump \u0026amp; Timing Belt Kit for 1998-2003 Toyota Sienna (XL10)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Performance Water Pump \u0026amp; Timing Belt Kit replaces worn synchronization and cooling hardware on the 1998-2003 Sienna to preserve valvetrain timing and eliminate coolant leaks under severe thermal stress.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Toyota Sienna Timing \u0026amp; Cooling Shortcoming\u003c\/h3\u003e\n\u003cp\u003eSevere thermal cycling in the cramped transverse engine bay degrades the OEM rubber belt, causing pitch elongation, tooth shear, and micro-cracking over time. Concurrently, factory water pump unitized seals degrade, weeping coolant onto the timing path. On late-model 2001-2003 \u003cstrong\u003e1MZ-FE\u003c\/strong\u003e iterations equipped with VVT-i, valvetrain clearance is interference-based; belt slippage or a collapsed factory hydraulic tensioner immediately precipitates catastrophic piston-to-valve contact and bent valves.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis comprehensive kit restores baseline reliability with an engineered 211-tooth HNBR composite timing belt formulated to withstand heat soak and oil saturation. The high-flow water pump features a cast impeller and heavy-duty unitized shaft seal to eliminate cavitation and coolant bypass. Paired with a precision-damped hydraulic tensioner adjuster, heavy-duty idler tensioner, and premium fluoroelastomer seals, this assembly prevents crank snout leakage and maintains exact timing tension across the entire operating RPM range.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 Timing Belt (211 Teeth)\u003c\/li\u003e\n  \u003cli\u003e1 Tensioner\u003c\/li\u003e\n  \u003cli\u003e3 Seals\u003c\/li\u003e\n  \u003cli\u003e1 Water Pump With Gasket\u003c\/li\u003e\n  \u003cli\u003e1 Tensioner Adjuster \/ Hydraulic Tensioner\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;\"\u003e1998-2003 Toyota Sienna\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;\"\u003e1MZ-FE \/ XL10\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;\"\u003e194-210 hp \/ 209-220 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;\"\u003eN\/A\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\u003e1998-2003 Toyota Sienna 3.0L V6 (CE, LE, XLE)\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 XL10 Sienna?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 1998-2003 Toyota Sienna equipped with the \u003cstrong\u003e1MZ-FE\u003c\/strong\u003e 3.0L V6 engine. \u003cstrong\u003eDoes not fit 4-cylinder models or later 3.3L 3MZ-FE platforms.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch4\u003eWhy should the front crank and cam seals be replaced during this service?\u003c\/h4\u003e\n\u003cp\u003eInstalling the included oil seals prevents front-of-engine oil seepage from migrating into the timing cover and degrading the composite rubber timing belt.\u003c\/p\u003e\n\n\u003ch3\u003eThe Toyota Reliability Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to preserve long-haul commercial and family reliability on the proven \u003cstrong\u003eXL10\u003c\/strong\u003e platform, this overhaul kit provides the strict dimensional tolerances and thermal resistance required for uninterrupted multi-passenger service.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67545292669176,"sku":"DS-ETFX23WRR","price":74.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/performance-water-pump-timing-belt-kit-for-toyota-sienna-1998-2003-3-0l-1.jpg?v=1790721063","url":"https:\/\/performancechiptuning.com\/products\/performance-water-pump-timing-belt-kit-for-toyota-sienna-1998-2003-3-0l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}