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Brand: C.OEFT
OE numbers: U140 U240 U241
Product Name: Transmission valve body assembly
Compatible model:
Product status: Remanufactured
Product weight:4.249KG
Packaging size: 63X41X36cm
Product packaging: Neutral Packaging
Car Series: Japanese
Car Type: for Toyota
1. Simplified Installation and Adaptation, Lower Maintenance Threshold
Considering that home car owners mostly choose third-party repair shops, the valve body emphasizes "convenience" in installation design:
Provide a "foolproof installation guide": Attach alignment mark diagrams of the transmission housing for adapted models (e.g., U140 corresponding to the Corolla's transmission fixing bolt positions), requiring no professional calibration equipment and only ordinary tools to complete installation;
Simplified TCU adaptive learning: Supports "manual trigger learning" (connect to an ordinary diagnostic instrument via the OBD port, with 3 steps to start), eliminating the need for Toyota-specific equipment and reducing learning time from 15 minutes to 8 minutes, adapting to the technical conditions of small and medium-sized repair shops;
Compatibility optimization: The valve body interface is fully compatible with Toyota's original TCU (e.g., models 89661-06040, 89661-0E040), requiring no TCU replacement or program rewriting, enabling "plug-and-play" and avoiding additional costs for "adaptation and debugging."
2. Home-Scenario-Specific Protection Functions, Avoid Damage from Misoperation
Targeting misoperation scenarios of home car owners (especially new drivers), the valve body adds multiple protection mechanisms:
Start-up protection: When the vehicle speed is < 5km/h, if the gear is mistakenly shifted to 3rd gear or higher, the valve body automatically cuts off oil supply and prohibits gear engagement, avoiding impact damage to the planetary gear set caused by low-speed high gears;
Hill-hold anti-rolling: When parking on a road with a slope > 8°, the valve body controls the brake band to maintain a pressure of 10MPa (for 3 seconds), giving the owner sufficient time to switch to P gear and preventing rolling;
Oil deterioration warning (U241 exclusive): Real-time monitors the acid value and viscosity of ATF WS fluid via an oil quality sensor. When the oil deteriorates to the "need for replacement" state, it not only triggers a reminder on the instrument panel but also automatically adjusts the oil pressure (increased by 5%) to avoid wear caused by insufficient oil lubrication, reserving a 1,000km oil change buffer period for the owner.
Precisely Resolve Common Faults of Aged Toyota Models, Reduce Maintenance Costs
Targeting high-frequency faults of Toyota models equipped with U140/U240/U241 transmissions (especially those with over 150,000 km of operation), the valve body features targeted structural optimizations:
For the common "2nd-3rd gear shifting jitter" in U140: The main oil circuit solenoid valve spool is upgraded (with a 0.05mm additional sealing ring) to resolve engagement deviations caused by oil pressure fluctuations, achieving a fault repair rate of 98%;
For the "low-speed surging" in U240/U241: A pressure buffer pad (made of oil-resistant HNBR) is added at the shift valve, controlling shift pressure fluctuations within ±0.03MPa and completely eliminating the "surging feeling" when driving at 20-35km/h;
For "oil circuit leakage": Fluororubber O-rings of Toyota's original specification are adopted (with 60% higher aging resistance than ordinary O-rings), adapting to the chemical stability of ATF WS transmission fluid and preventing seal hardening and oil seepage after long-term use, reducing the frequency of secondary maintenance.
Meanwhile, the valve body supports "faulty part refurbishment and replacement" — there is no need to replace the entire transmission; replacing only the valve body can resolve over 80% of hydraulic control-related faults. Compared with overall transmission maintenance, this reduces costs by 60%-70%, meeting the "cost-effective maintenance" needs of home car owners.
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