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| Engine Model | YC4D120-21(D1204) |
| Rated Power | 120 HP (90 kW) @ 2800 rpm |
| Rated Torque | 420 N·m @ 1600-1900 rpm |
| Emission Standard | Euro II / China II |
| Application Field | Light-duty/medium-duty trucks, low-tonnage medium trucks, small construction machinery |
| Core Advantages | Low fuel consumption (≤205g/kW·h), high reliability, easy maintenance |
Power, Precision, Partnership: The Genuine Yuchai Ecosystem
Choose the authentic power legacy of Yuchai. Our 100% genuine OEM parts for the YC4D120-21(D1204) engine are designed to restore its original horsepower, torque, and efficiency, delivering the true Yuchai DNA.
Uncompromised Quality, Forged on the Original Line
Every part is produced to identical specifications under the stringent Yuchai Quality Control System (QCS), guaranteeing perfect fitment, durability, and seamless integration to preserve engine value.
Your One-Stop Solution for Assured Performance
We provide a comprehensive, one-stop supply—from components to complete kits, backed by technical support.
1. Crankshaft Vibration Damper Assembly
2. Camshaft Assembly
3. Valve Tappet Assembly
4. Air Intake Pipe Assembly
5. Air Exhaust Pipe Assembly
