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Brand: C.OEFT
OE numbers: 24355-3N100
EAProduct Name:Center Screw
Compatible model: /
Product status:New
Product weight:0.1819KG
Packaging size: 10*4.5*4.5 cm
Product packaging:Neutral Packaging
Car Series:Korean
Car Type: For Hyundai
1.Adaptive Damping to Balance High/Low-Speed Performance
Designed with "working condition-adaptive gear tooth damping" to meet Hyundai models’ needs for "urban low-speed commuting + high-speed cruising": at low speeds (<2500rpm), the damping is reduced by 30%, accelerating timing response by 0.2 seconds and improving power lag during start-up; at high speeds (>4000rpm), the damping is increased by 50%, avoiding meshing gaps caused by vibration and ensuring a high-speed timing error of ≤±0.3°, thus reducing the risk of engine knock. This solves the "high/low-speed performance contradiction" of ordinary fixed-damping screws.
2.Low-Temperature Anti-Clogging to Overcome Cold-Start Pain Points
Aiming at the problem of low oil temperature during cold starts in some Hyundai engines (e.g., 2.0L models equipped in ix35 and Sonata), the inner wall of the oil passage is coated with Teflon (reducing engine oil adhesion rate to 8%, vs. 25% for ordinary screws), and a micro one-way valve is integrated at the screw tail to temporarily store preheated oil (from the engine oil pan preheating device). This enables the VVT system to operate normally within 3 seconds after cold start (vs. 8-10 seconds for ordinary screws) at temperatures below -15℃, reducing the cold-start failure rate of Hyundai models by 60%.
1.OE Data Replication to Eliminate Adaptation Risks
Produced in strict accordance with Hyundai’s original drawings, key parameters (diameter, pitch, oil passage aperture) have an error of ≤0.005mm, and the fitting clearance with Hyundai engine phasers is <0.02mm (vs. 0.05-0.1mm for aftermarket screws). It can be directly installed without modification, avoiding problems such as timing disorder and oil leakage caused by poor adaptation of aftermarket parts.
2.Military-Grade Materials to Double Durability
Made of chrome-molybdenum alloy steel specified by Hyundai (tensile strength 60% higher than ordinary carbon steel), with a dual anti-rust treatment of "nitriding + phosphating" on the surface (corrosion resistance in salt spray tests reaches 1000 hours, vs. approximately 300 hours for aftermarket parts); the internal damping block uses oil-resistant silicone rubber (temperature resistance range: -40℃~180℃, vs. -20℃~150℃ for aftermarket parts). Under normal working conditions, its service life can reach more than 100,000 kilometers (vs. approximately 50,000 kilometers for aftermarket parts), reducing the frequency of subsequent maintenance.
3.Full-Condition Quality Inspection for Higher Performance Stability
Before leaving the factory, 100% testing is conducted under simulated full working conditions of Hyundai engines (high/low temperature, high/low speed, high load), ensuring an oil control precision error of ≤±2% (vs. >±5% for aftermarket parts) and a timing adjustment response time fluctuation of <0.05 seconds. This avoids problems such as reduced engine power, increased fuel consumption (can reduce comprehensive fuel consumption by 0.2-0.3L/100km), or VVT fault light activation caused by unstable part performance.
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