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Brand: C.OEFT
OE numbers: 8891790688
Product Name: Transmission Assembly
Compatible model:
Product status:Remanufactured
Product weight: 120.000KG
Packaging size: 100X100X100 cm
Product packaging: Neutral Packaging
Car Series: Chinese
Car Type: for Geely Emgrand GL/GS
1.Precise Hydraulic Pressure & Flow Regulation
Controls the pressure (0.4–3.8MPa) and flow rate of transmission fluid to key components (clutches, planetary gear sets, torque converter) via 8–10 integrated solenoid valves. It adjusts pressure in real time based on TCU commands: For example, during hard acceleration, it increases clutch pressure to prevent slippage; during low-speed crawling, it reduces pressure to enable smooth, low-jerk gear transitions.
2.Clutch Engagement/Disengagement Coordination
Manages the hydraulic oil supply to multi-plate clutches (for DCT/AT) to control engagement speed and clamping force. For dual-clutch transmissions (DCT), it synchronizes the pressure of the “oncoming” and “disengaging” clutches—shortening shift intervals and avoiding gear grinding or harsh engagement, even under high load.
3.Torque Converter Lockup Control
Regulates the hydraulic pressure supplied to the torque converter’s lockup clutch. At high cruising speeds (>100km/h), it fully engages the clutch to eliminate fluid slip, improving fuel efficiency by 10–12%; during low-speed acceleration or hill climbing, it partially disengages the clutch to leverage the torque converter’s multiplication effect, enhancing low-end power output.
4.Fluid Distribution & System Cooling
Distributes transmission fluid to lubrication, cooling, and control circuits through integrated internal channels. It ensures critical components (gears, bearings) receive sufficient lubrication to reduce wear, while directing high-temperature fluid to the transmission cooler to maintain the optimal operating temperature (85–115°C)—preventing overheating-related performance degradation.
1.Precision Compatibility with Advanced Transmissions
Engineered exclusively for modern high-grade automatic transmissions, 8891790688 strictly adheres to original equipment (OE) standards for hydraulic port dimensions, electrical connector pinouts, and CAN bus communication protocols (CAN FD). It eliminates compatibility issues like hydraulic pressure mismatches, signal delay, or mounting misalignment common in universal parts—ensuring seamless integration with the vehicle’s transmission control unit (TCU) and adapting to high-torque powertrains (up to 400N·m).
2.Enhanced Durability for Harsh Operating Conditions
①.Housing:
Constructed from high-strength aluminum alloy with a multi-layer anti-corrosion coating (electrophoresis + powder coating), resisting engine compartment temperatures ranging from -40°C to 180°C and continuous vibration (≤45g)—suitable for long-term use in extreme scenarios (e.g., high-speed cruising, mountain climbing).
②.Internal Components:
Hydraulic valve cores feature diamond-like carbon (DLC) coating, reducing friction and wear by 60% compared to standard steel cores; electronic actuators use automotive-grade brushless motors with a service life of over 20,000 hours.
③.Reliability:
Mean Time Between Failures (MTBF) exceeds 18,000 hours, meeting the durability requirements of premium vehicle transmission systems.
3.Next-Gen Precision Control & Responsive Performance
①.Hydraulic Control:
Achieves ultra-precise pressure regulation (fluctuation ≤±0.8%) via CNC-machined valve sleeves (tolerance ≤0.003mm) and high-sensitivity pressure sensors, ensuring stable fluid flow to transmission clutches and gear sets.
②.Electronic Response:
For actuator variants, it delivers a response time of ≤20ms to TCU commands—enabling rapid gear shifts (≤0.25 seconds for DCT) and minimizing shift shock (≤0.06g), significantly improving driving smoothness.
4.Energy Efficiency Optimized for Modern Powertrains
Integrates an intelligent energy-saving design: In standby mode, electronic components operate at a low current (≤50mA at 12V DC), reducing parasitic power consumption by 30% compared to traditional components. For hybrid transmissions, it coordinates with the hybrid control unit (HCU) to adjust hydraulic/actuation logic during regenerative braking, increasing energy recovery efficiency by 15%.
5.Comprehensive Multi-Dimensional Protection
①.Electrical Protection:
Equipped with over-voltage (20V max), reverse-polarity, and electrostatic discharge (ESD) protection (compliant with IEC 61000-4-2), shielding against electrical anomalies in the vehicle’s wiring system.
②.Thermal Protection:
Dual-temperature sensors monitor component and transmission fluid temperatures; if temperatures exceed 190°C, it triggers a thermal shutdown to prevent irreversible damage.
③.Hydraulic Protection:
Built-in pressure relief valves automatically release excess pressure (≥4.0MPa), avoiding burst risks for hydraulic hoses and seals, and a filtration system (10μm precision) prevents debris from clogging valves.
6.Cost-Effective Premium Replacement
Priced 25–30% lower than genuine OE parts from premium brands while maintaining equivalent performance and quality. Its long service life and low maintenance needs reduce the total cost of ownership for vehicle owners and repair facilities, making it an ideal choice for high-end transmission maintenance.
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