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Brand: C.OEFT
OE numbers: 13063-75011
Product Name: Timing Chain Kit
Compatible model:
Product status: New
Number of teeth on the product: 142/28
Product weight: 0.870kg
Packaging size: 17*17*8.5 cm
Product packaging: Neutral Packaging
Car Series: Japanese
Car Type: for Toyota
1. Core: Engine Timing Synchronization
·As a critical part of the engine’s timing system, the camshaft pulley connects to the camshaft and engages with the timing chain/belt (driven by the crankshaft pulley). It ensures the camshaft rotates at 1:2 the speed of the crankshaft (a fundamental engine timing ratio), aligning the opening/closing of intake/exhaust valves with piston movements (intake, compression, power, exhaust strokes).
·Prevents "timing misalignment"—a catastrophic issue that can cause valve-piston collision, leading to bent valves, damaged pistons, or even total engine failure.
2. Dephaser Pulley: Dynamic Timing Adjustment (if equipped)
Hydraulic/Mechanical Phase Control: For models with VVT systems, the dephaser pulley uses engine oil pressure (hydraulic) or mechanical actuation to slightly rotate the camshaft relative to the timing chain/belt. For example:
·At low engine speeds (e.g., idling or city driving), it advances the camshaft to open intake valves earlier, increasing air-fuel mixture intake and improving low-end torque.
·At high speeds (e.g., highway acceleration), it retards the camshaft to keep intake valves open longer, allowing more air-fuel mixture to enter the combustion chamber and boosting high-speed power.
3. Stable Power Transmission
The pulley’s precise tooth profile and smooth surface ensure consistent engagement with the timing chain/belt, minimizing slippage, vibration, and noise during operation. This stabilizes power transfer from the crankshaft to the camshaft, maintaining steady engine performance and reducing wear on the timing system (e.g., preventing premature stretching of timing chains).
·High-Grade Materials: Crafted from durable alloys (e.g., high-strength aluminum alloy or heat-treated steel) that resist wear, corrosion, and high-temperature deformation—key to withstanding the constant mechanical stress and extreme operating environment of the engine timing system.
·Precision Manufacturing: Undergoes strict CNC machining and dimensional calibration, ensuring the pulley’s tooth profile, inner bore fit, and surface flatness fully meet Toyota’s original equipment (OE) standards. This eliminates issues like tooth skipping, abnormal wear, or misalignment caused by poor craftsmanship.
2. Perfect Compatibility with Toyota Models
·OE Part Number Matching: Exclusively engineered for Toyota vehicles corresponding to part number 13063-75011 (common in specific Toyota engine series). It directly replaces the original pulley without requiring modifications to the engine’s timing system, ensuring a "plug-and-play" installation experience.
·System Synergy: Optimized to work seamlessly with Toyota’s original timing chains/belts, camshafts, and crankshaft components. It maintains consistent contact with adjacent parts, avoiding premature failure of the entire timing system due to mismatched dimensions.
3. Enhanced Performance with Dephaser Function (if applicable)
For variants with "dephasing" capability (camshaft dephaser pulley):
·Variable Valve Timing (VVT) Support: Integrates a hydraulic or mechanical dephasing mechanism that adjusts the camshaft’s rotation phase in real time. This optimizes valve opening/closing timing based on engine speed and load, improving fuel efficiency (by 5-10% in typical scenarios) and reducing exhaust emissions.
·Smoother Power Delivery: Eliminates "low-end torque lag" by advancing cam timing at low speeds, while retarding timing at high speeds to boost top-end power—enhancing overall driving comfort and performance.
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