The U151F automatic transmission low gear clutch drum assembly 3420428011 is applicable to Toyota Hanlan Da
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Function: Engages low/reverse gears by actuating multi-plate clutch packs in planetary gearset applications (common in 4WD/RWD transmissions).
Key Components:
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Drum Body: Hardened aluminum or steel with precision splines for clutch plate engagement
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Integrated Piston: Hydraulically actuated with reinforced seals for high-pressure apply (60-100 psi)
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Bleed Channels: Prevent clutch drag during release
Failure Modes:
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Spline Wear: Causes incomplete clutch engagement (slippage in low gear)
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Piston Seal Leaks: Results in delayed reverse engagement
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Drum Cracks: Thermal stress near weld points (sudden loss of drive)
Critical Checks:
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Measure drum runout (<0.08mm)
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Verify clutch clearance (1.0-1.8mm typical)
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Inspect for blueing (overheating evidence)
Pro Tip: Always replace drum seals during rebuilds – reused seals have 80% higher failure rate.

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3420428011 Clutch Drum Assembly
,automatic transmission Clutch Drum Assembly
,3420428011 Clutch Drum Assembly
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025CHA CVT Steel Chain 901096 for Chery Tiggo Series & Compatible
Core Product Information Product Name: 025CHA Series CVT Transmission Steel Chain Assembly Core Part Number: 901096 Compatible Part Numbers: 901074, 901089 Transmission Models: CTF25, QR025CHA, CVT25, VT5, CVT28, CTF28, RDC27, QR025CHC Condition: 100% Genuine New Origin: Netherlands Dimensions: 28×15×10 cm Weight: 1.5 kg Vehicle Compatibility Chery: Tiggo 4, Tiggo 7, Tiggo 8 Exeed LX, Omoda C5 Baojun: 530 Dongfeng: Fengguang 580 Professional Installation Recommended Critical -
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09G/09M/09K/AWTF60SN Transmission K2 Clutch Drum Assembly with 15-Spline Shaft
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