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| Brand Name : | Toyota |
| Model Number : | U340E;U340F;U341E;U341F |
| Price : | 0-1000 |
| Payment Terms : | T/T |
| Delivery Time : | 5-8 work day |
Function: Engages direct drive (1:1 ratio) in Toyota 4-speed transmissions by locking planetary components via multi-plate clutch.
Key Components:
Drum Material: Forged aluminum with hardened steel splines (OEM 33404-30030)
Integrated Piston: Triple-lip seal design for high-pressure stability (90-120 psi apply)
Bearing Surfaces: Precision-ground for input shaft support
Failure Modes:
Spline Rounding: Causes clutch slippage (P0770 codes)
Seal Extrusion: ATF degradation leads to pressure loss (delayed engagement)
Thrust Washer Wear: Alters axial clearance → clutch drag
Critical Specs:
Drum runout limit: <0.05mm
Clutch pack clearance: 0.8-1.2mm
Shaft endplay: 0.1-0.3mm
Pro Tip: Replace both drum and input shaft if splines show polishing – indicates mutual wear



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| Company Info. |
| Guangzhou Meishun Automatic Transmission Co., Ltd. |
| Verified Supplier |
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