{"product_id":"toyota-hiace-regiusace-transmission-3-0l-4-speed-automatic-1kzte-89661-26400","title":"TOYOTA HIACE\/REGIUSACE TRANSMISSION 3.0L 4-SPEED AUTOMATIC 1KZTE 89661-26400","description":"\u003cp data-start=\"0\" data-end=\"1231\"\u003eSearching for a TOYOTA HiAce \/ RegiusAce Transmission 3.0 L 4-Speed Automatic (1KZ-TE, OEM 89661-26400) 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 HiAce and Toyota RegiusAce equipped with the 3.0 L 1KZ-TE turbo diesel engine, delivering smooth gear transitions, confident acceleration, robust torque handling, and dependable performance whether you’re transporting passengers, hauling cargo, or driving long distances with comfort and control. Built to integrate precisely with the 3.0 L 1KZ-TE engine and the HiAce\/RegiusAce drivetrain architecture, this automatic gearbox supports optimised gear ratios, adaptive shift logic, and accurate hydraulic and electronic control mapping to ensure consistent drivability, improved fuel economy, and long service life. The transmission control unit (TCU\/ECU) communicates seamlessly with the engine management system, enabling precise coordination that enhances shift quality, throttle response, and overall vehicle responsiveness under varied load and road conditions.\u003c\/p\u003e\n\u003cp data-start=\"1233\" data-end=\"1902\"\u003eOwners commonly search for a replacement 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 engine 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.\u003c\/p\u003e\n\u003cp data-start=\"1904\" data-end=\"2505\"\u003eThis automatic transmission assembly is ideal for buyers searching for a TOYOTA HiAce \/ RegiusAce 3.0 L 4-Speed Automatic Transmission (1KZ-TE, OEM 89661-26400) replacement, genuine OEM solution, or complete unit that restores smooth operation and dependable drivability in compatible HiAce and RegiusAce 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.\u003c\/p\u003e\n\u003cp data-start=\"2507\" data-end=\"2968\"\u003eInstalling 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 heavy-load conditions. Ensuring the correct transmission match and specification helps prevent unnecessary complications and protects overall drivetrain reliability.\u003c\/p\u003e\n\u003cp data-start=\"2970\" data-end=\"3493\"\u003eBefore you buy, always verify the vehicle make, model, and generation as Toyota HiAce or Toyota RegiusAce with the 3.0 L 1KZ-TE turbo diesel engine, confirm the 4-speed automatic transmission configuration, and match the exact OEM transmission model or part number 89661-26400. 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.\u003c\/p\u003e","brand":"Dyna Car Parts","offers":[{"title":"Default Title","offer_id":42830779056218,"sku":"DY_Automatic Transmission_1160","price":1520.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0635\/3633\/2890\/files\/1_3634ad34-bb96-4f55-b32d-02372a32e701.jpg?v=1769551561","url":"https:\/\/dynacarparts.com\/products\/toyota-hiace-regiusace-transmission-3-0l-4-speed-automatic-1kzte-89661-26400","provider":"Dyna Car Parts","version":"1.0","type":"link"}