Transmission Parts

GA8G45AW Automatic Transmission Valve Body Wiring Harness 24008744992 For BMW X1 F48 Single Oil Temperature Sensor Version

The automatic transmission valve body wiring harness is a crucial electrical interface, connecting solenoids, sensors, and switches to the TCM (Transmission Control Module). Key points: Function – Transmits signals for solenoid activation (shift control, pressure regulation) and sensor feedback (speed, temperature). Components – Includes terminals, connectors, and shielded wires to prevent EMI interference. Common Issues – Broken wires, corroded pins, or poor connections

GA8G45AW 4FA040 Hydraulic Torque Converter Assembly 24408699936 For Mini F54

"The 4FA040 torque converter is a hydraulic coupling unit with three key functions: Torque Multiplication: 2:1 stall ratio (approx.) for initial acceleration via stator clutch. Lock-Up Clutch: Electronically controlled friction disc (engageable above 25 mph) for direct drive efficiency. Cooling: Integrated impeller circulates ATF to the radiator cooler. Common Failures: TCC shudder (P0741/P2714 codes) from worn clutch material Needle bearing wear causing turbine wobble Seal

Internal Oil Filter Of 7DCT330 Dual-clutch Transmission 5501673496

Location: Typically housed in the transmission valve body or oil pan (serviceable without full disassembly). Function: Filters 5-10 micron particles from transmission fluid, preventing solenoid and clutch pack contamination. Material: Multi-layer synthetic fiber or metal mesh construction for high flow (3-4 L/min) and heat resistance (up to 130°C/266°F). Service Interval: Recommended every 60,000 km (37,000 miles) or with fluid changes. Clogging triggers P2714 (pressure

General Motors 6T30 Low-speed Reverse One-way Clutch Wheel Hub Cruze Sonic 2013 And Later

"The 6T30's low/reverse one-way clutch hub is a critical rotational control component in the transmission's planetary gearset. Key characteristics: Function: Engages during low gear and reverse to prevent counter-rotation, while freewheeling in other gears. Common Issues: Prone to wear or roller clutch failure, causing slipping in low/reverse (common symptom: delayed reverse engagement). Material: Typically hardened steel construction for durability under torque loads.

For Audi E-type Clutch Hub Assembly ZF 8HP55A 38 Splines And Matching Gear 1087471023

The Audi E-clutch hub assembly is a precision component in DCT/DSG or high-performance automatics. Key analysis: Role – Links clutch packs to gearsets, enabling rapid torque transfer in multi-plate setups. Material – Forged steel or billet alloy, hardened for extreme stress/heat resistance. Design – Features intricate splines, lubrication channels, and often integrated synchronizer surfaces. Failures – Spline wear, thermal distortion, or micro-fractures from aggressive shifts

10R60 10-speed Automatic Transmission Clutch Assembly CDF Three-drug Hub Assembly L1MZ-7H351-B

The 10-speed automatic transmission clutch assembly is a high-precision, multi-plate hydraulic actuator enabling seamless gear transitions. Key analysis: Function – Engages/disengages specific planetary gearsets via electronically controlled hydraulic pressure (PWM solenoids). Design – Stacked friction/steel plates with laser-welded clutch drums, low-inertia pistons, and dynamic balance grooves for 300+ ft-lb torque handling. Failure Modes Plate glazing : From overheating

AWTF60SN Transmission 4-5-6 K2 Clutch Drum 4 Clutches 15 Spline Shaft Drum Clutch Assembly

The drum clutch assembly is a core torque transfer unit in modern automatics (especially planetary-based designs). Key points: Function – Houses stacked friction/steel plates activated hydraulically to lock planetary gearset elements. Critical Parts – Drum body, apply piston, seals, return springs, and splined hubs (input/output connections). Failure Modes Drum cracks : Stress fatigue near weld seams or splines. Seal leaks : Causes slow engagement (delayed shifts). Plate wear

09G TF-60SN Automatic Transmission K1 Drum Clutch Assembly

The K1 drum clutch assembly is a critical torque transfer component in dual-clutch (DCT/DSG) transmissions. Key analysis: Function – Controls odd gears (1st/3rd/5th/7th) via multi-plate clutch pack engagement in the concentric input shaft design. Construction – High-strength steel drum housing with precision-machined splines, integrated piston, and wave springs for smooth apply/release. Failure Modes – Drum cracks (fatigue), clutch plate glazing, or piston seal leaks causing

8L45 Automatic Transmission 2-3-4-6-8 And 4-5-6-7-8 Reverse Gear Clutch Assembly

The reverse clutch assembly in automatic transmissions is a critical hydraulic-actuated component enabling reverse gear engagement. Key points: Function – Applies pressure to clutch packs, locking the planetary gearset for reverse output rotation. Design – Multi-plate setup (steel/friction discs) with a piston, seals, and return springs. Failure Modes – Burnt friction material, seal leaks, or piston sticking (causing delayed/no reverse, slippage, or abnormal noise). Root

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