This VVT‑i intake camshaft timing gear 13050‑31030 is core variable valve timing component for Toyota 1GR‑FE 4.0L V6 gasoline engine. Driven by engine oil pressure, it dynamically adjusts intake camshaft angle according to engine speed and load, optimizes intake‑exhaust valve timing, improves low‑speed off‑road torque, high‑speed power and reduces fuel consumption and exhaust emission. Aftermarket replacement for Toyota Prado, Hilux, Fortuner, 4Runner, FJ Cruiser, Tacoma and Tundra from 2003‑2015。
Adopts high‑strength alloy steel housing and precision internal rotor assembly. Optimized hydraulic oil‑channel structure, reliable internal sealing performance, resist long‑term high‑temperature engine‑oil erosion under heavy‑load off‑road working conditions. Complete precision gear tooth profile ensures stable meshing with timing chain. Supplied with matching mounting bolt for overhaul installation.
Common failure symptoms: obvious cold‑start rattling noise from cylinder head, stored VVT‑related fault codes P0011 / P0012, unstable idle speed, insufficient engine power, poor acceleration and increased fuel consumption. Usually replaced together with timing chain, tensioner and guides during timing‑system overhaul. Every phaser passes hydraulic simulation and tooth‑profile inspection before shipment, matches original installation dimension, no modification required for installation. Critical spare‑part for 1GR‑FE VVT‑i system maintenance.
