30400-12740 Toyota Corolla 2.0L K120E K120 Transmission

The Direct Shift-CVT automatic transmission assembly with reference numbers 30400-12740, 30400-12510, and 30400-12760 is designed for the Toyota Aisin K120E / K120 front-wheel-drive automatic transaxle. This unit combines a mechanical first launch gear with a high-efficiency CVT pulley system, delivering responsive start-off acceleration and superior fuel efficiency for Toyota Corolla, RAV4 2WD, and related 2.0L M20A platforms.

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Quick Specifications:
• Part Numbers: 30400-12740 / 30400-12510 / 30400-12760
• Transmission Model: K120E / K120 (10-Speed Direct Shift-CVT)
• Configuration: Front-Wheel Drive (FWD / 2WD)
• Engine Compatibility: 2.0L M20A-FKS Dynamic Force L4
• Fluid Type: Genuine Toyota CVT Fluid FE

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Applications:
• Toyota Corolla Sedan & Hatchback (2019-2024, 2.0L M20A-FKS variants)
• Toyota RAV4 2WD / FWD (2019-2024, 2.0L M20A-FKS variants)
• Toyota Corolla Cross 2WD (2020-2024, 2.0L M20A-FKS variants)

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Complete Assembly Includes:
✅ Transmission case with mechanical launch gear and CVT pulley system
✅ High-tensile steel push-belt and synchromesh launch mechanism
✅ Torque converter with lock-up clutch
✅ Valve body with linear shift and pressure control solenoids
✅ Oil pump, internal filter, speed sensors, and sealing gaskets

Note: Mounts, shift cables, external cooler lines, and wiring adapters may need to be transferred or purchased separately.

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Key Features:
✅ Mechanical first launch gear eliminates rubber-band start-off feel and protects the belt
✅ 10-speed simulated Direct Shift architecture for sporty acceleration and fuel economy
✅ Narrower 9-degree pulley groove design increases shifting speed by 20%
✅ Lock-up torque converter reduces slippage across a wide speed range
✅ Compatible with Toyota CVT Fluid FE for extended service life

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Technical Notes:

Installation Criticals:
• Fluid Fill: Must follow the specific overflow check temperature procedure (35°C - 45°C) using a scan tool. Over/under-filling causes launch gear shock or failure.
• TCM Programming: Solenoid compensation code registration, G-sensor calibration, and clutch pressure learning are required after installation using Toyota Techstream (GTS).
• Torque Converter: Ensure full seating ("three clicks") before mating to the engine to prevent pump damage.
• Cooler Flushing: Flush the transmission oil warmer/cooler and lines thoroughly to remove debris from the old unit.

Maintenance Tips:
• Use only genuine Toyota CVT Fluid FE.
• Perform adaptation reset via OBD2 scanner after installation.
• Monitor transmission temperature during heavy loads to prevent overheating.