Searching for a TOYOTA Crown Comfort Transmission 4-Speed Automatic (1TR-FPE, OEM Part 35000-43230) with precise specifications and verified OEM compatibility? You’re in the right place. This 4-speed automatic transmission assembly is engineered to match the drivetrain dynamics, torque characteristics, and electronic control requirements of the Toyota Crown Comfort equipped with the 1TR-FPE petrol engine, delivering smooth gear transitions, responsive acceleration, dependable reliability, and refined drivability whether you’re navigating urban streets, operating in commercial service, or cruising on highways with confidence and control.

Built to integrate precisely with the 1.0-litre 1TR-FPE petrol engine and the Crown Comfort’s drivetrain architecture, this automatic gearbox supports optimised gear ratios, adaptive shift logic, and precise hydraulic and electronic control mapping to ensure consistent performance, improved fuel efficiency, and long service life. The transmission control unit (TCU/ECU) communicates seamlessly with the engine management system, enabling accurate coordination that enhances shift quality, throttle response, and overall vehicle responsiveness across varied driving conditions and load demands.

Owners commonly search for a replacement 4-speed automatic transmission when experiencing symptoms such as delayed or rough gear changes, slipping under acceleration or load, inconsistent shift engagement, unusual vibration or noise from the drivetrain, persistent transmission-related warning lights, or reduced overall drivability and fuel efficiency. Because modern automatic transmissions are precision-engineered systems designed to work with specific torque curves, hydraulic control strategies, and electronic communication protocols, confirming correct fitment and specifications before purchase is essential to ensure smooth operation and long-term reliability.

This automatic transmission assembly is ideal for buyers searching for a TOYOTA Crown Comfort 4-Speed Automatic Transmission (1TR-FPE, OEM 35000-43230) replacement, a genuine OEM gearbox solution, or a complete unit that restores smooth operation and dependable drivability in compatible Crown Comfort models. Automatic transmissions are carefully calibrated to work with engine output characteristics, torque converter engagement behaviour, electronic shift scheduling, vehicle speed inputs, and load-based adaptive control strategies to maintain refined performance and drivetrain durability.

Installing an incompatible or mismatched unit can lead to persistent diagnostic fault codes, rough or unpredictable shifting behaviour, reduced fuel economy, overheating risk, erratic throttle response, and premature wear of internal transmission components—especially under sustained driving or higher-load conditions typical of commercial or taxi use. Ensuring the correct transmission match and specification helps prevent unnecessary complications and protects overall drivetrain reliability.

Before you buy, always verify the vehicle make, model, and generation as TOYOTA Crown Comfort with 1TR-FPE petrol engine, confirm the 4-speed automatic transmission configuration, and match the exact OEM transmission model or part number 35000-43230. Proper verification ensures accurate electronic communication, correct hydraulic and control system mapping, and smooth integration with the vehicle’s drivetrain system—delivering dependable performance you can trust mile after mile.