Titles:
V BELT (KU-RD81942782)
Description:
Maintain reliable machine operation and operator comfort with the V BELT (KU-RD81942782) — a genuine Kubota OEM-spec auxiliary drive belt engineered primarily for cab air conditioning systems in heavy-duty excavators.
This belt is responsible for transmitting power from the engine to the A/C compressor, ensuring consistent cooling performance inside the cab during demanding work conditions. Built with high-strength rubber compounds and reinforced tensile cords, it delivers excellent resistance to heat, stretching, and wear caused by continuous operation.
Its precision design ensures:
- Smooth pulley engagement and minimal slippage
- Stable A/C compressor performance
- Reduced vibration and noise
- Long service life in harsh construction environments
Ideal for preventative maintenance or replacement, this belt helps maintain operator comfort, system efficiency, and overall machine reliability.
Model Fitment:
Primary Compatible Models (Excavators)
- KX080-3
- KX080-3 Alpha
- KX080-3T (Interim Tier 4)
- KX080-4
- KX080-4S / 4S2
- KX080-5
Confirmed across multiple generations of KX080 series excavators
Application Overview
- Cab air conditioning compressor drive
- Auxiliary engine belt system
Located within cab A/C system assemblies, not engine cooling or mower decks
Part Details:
- Part Number: RD819-42782 (KU-RD81942782)
- Product Type: V-Belt (Auxiliary / A/C Drive)
- Weight: ~0.3–0.35 lbs
- Material: Reinforced rubber with high-tensile cords
- Application: A/C compressor drive system
- Installation: Direct OEM replacement
- Also Known As: RD81942782 / RD819-42782
