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Brand: C.OEFT
OE numbers: 9L2Z7G391A
Product Name: Transmission valve body assembly
Compatible model: /
Product status: Remanufactured
Product weight:2.124KG
Packaging size: 63X41X36cm
Product packaging: Neutral Packaging
Car Series: American
Car Type:For Ford
1. Central Control of AT Hydraulic System
As the "hydraulic command core" of Ford's 6-speed AT transmission, the valve body precisely controls the flow direction, pressure, and flow rate of hydraulic oil through 26 sets of precision valves including built-in main pressure valves, shift valves, and lock-up control valves. When the TCU issues a shift command, the oil circuit response time is ≤ 50ms, which can simultaneously drive the torque converter lock-up clutch (lock-up rate reaches over 95% during high-speed cruising) and the planetary gear set's clutch/brake band action — for example, when shifting from 2nd to 3rd gear, the K1 clutch disengages while the K2 clutch engages precisely, achieving "power interruption-free" transmission. This ensures that engine power (e.g., EcoBoost 3.5T engine) is smoothly transmitted to the wheels, avoiding power jitter caused by shifting deviations.
2. Scenario-Based Intelligent Gear Adjustment
It receives real-time data commands from the TCU (in compliance with Ford's CAN protocol) and dynamically optimizes the shifting strategy based on the vehicle's usage scenario:
Normal Mode: Shifts up 180-280rpm in advance (shifts to 5th gear when the vehicle speed is 60km/h) and operates at a low speed of 1500-2000rpm, prioritizing fuel efficiency.
Sport Mode: Delays shifting up by 250-350rpm, maintaining a high-speed range of 3000-4500rpm. During rapid acceleration, it completes continuous downshifting from 7th to 3rd gear within 1 second to improve power response.
Tow/Haul Mode: Prohibits early engagement of high gears (e.g., only shifts to 6th gear when the vehicle speed reaches 80km/h) and increases the shifting interval to avoid clutch overheating caused by frequent shifting.
1. Exclusive Adaptation for Ford 6-Speed AT Models, OEM-Level Precision Compatibility
The 9L2Z7G391A transmission valve body is an original-specification core control component for Ford's 6-speed AT transmissions (fitted in models such as the F-150 Raptor, Explorer, and Taurus). It is developed in strict compliance with Ford's WSS-M99P1111-A technical standards, with the valve plate oil passage hole tolerance controlled within ±0.03mm. The spool stroke is fully synchronized with the transmission's torque converter (e.g., Ford 6R80 model torque converter) and Simpson planetary gear set, and the interface specification is seamlessly compatible with Ford's dedicated TCU (e.g., TEAM-TRONIC TCM), supporting high-speed CAN bus data transmission (rate of 800kbps). It can be directly installed without additional cutting or modification, effectively resolving common issues with non-adaptive valve bodies such as oil leakage (e.g., main oil passage seal leakage), 3rd-4th gear shifting jitter, and low-speed surging. It is particularly suitable for replacing old valve bodies in vehicles with over 120,000 kilometers of operation. After installation, only approximately 20 minutes of TCU adaptive learning is required to restore Ford's original "high torque bearing + smooth transmission" characteristics, perfectly meeting after-sales maintenance and original replacement needs.
2. High-Torque Hydraulic Control, Stable Shifting in Heavy-Load Scenarios
Targeting the "maximum bearing torque of 550N·m" characteristic of Ford's 6-speed AT transmission (to meet the towing needs of the F-150), the valve body adopts a combined design of 10 sets of high-precision proportional solenoid valves (PWM control frequency of 180Hz) and a three-stage pressure regulating valve. It can real-time capture parameters such as engine torque, towing weight, and throttle opening, and fine-tune the hydraulic oil pressure with an accuracy of ±0.1MPa. Compared with ordinary valve bodies, the gear shifting response speed is increased by 28%, and the shifting delay from 2nd to 6th gear is controlled within 75-200 milliseconds, completely eliminating the "surging feeling" during low-speed (25-40km/h) shifting. Meanwhile, through Ford's exclusive "torque adaptive logic", the engagement pressure curve of the planetary gear set's clutch/brake band is optimized — in Tow/Haul mode, the clutch engagement pressure rises linearly from 18MPa to 28MPa, avoiding power interruption under heavy loads. Even when climbing with a trailer of less than 3.5 tons, it can maintain stable gear shifting, adapting to multiple scenarios including household use, off-roading, and commercial vehicle operations.
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