Title:
V-BELT(SUB) (KU-3J08011120)
Description:
The V-BELT(SUB) (KU-3J08011120) supports efficient power transfer within the engine’s auxiliary drive system, acting as a secondary belt for specific component operation. It actively maintains consistent rotation between pulleys, thereby ensuring smooth performance of supporting systems. Moreover, its precision-fit design complements primary belts, which helps balance load distribution and reduces strain on the overall drive system.
In addition, the belt features a durable rubber compound reinforced with high-strength tensile cords, allowing it to withstand heat, friction, and continuous operation. As a result, it delivers stable performance in demanding agricultural and construction environments. Furthermore, its flexible construction reduces vibration and slippage, thereby improving efficiency and extending the service life of connected components.
Model Fitment:
Tractors
M-Series (Utility & Agricultural Tractors)
- M6040, M7040
- M8540, M9540
- M95GX, M105GX
These models may utilise a sub V-belt alongside primary belts to support auxiliary systems and optimise load sharing.
L-Series (Compact Tractors)
- L3400, L3700SU
- L3800, L4400
- L3200, L4600
Compact tractors often incorporate secondary belts for additional driven components depending on configuration.
Construction Equipment
Compact Excavators (KX-Series)
- KX121-3, KX161-3
- KX040-4 (engine-dependent configurations)
These machines operate under continuous load; therefore, sub belts help maintain balanced drive performance.
Mini Excavators (U-Series)
- U35, U45
- U48-4 (select configurations)
Secondary belts are used to support auxiliary drives within compact engine layouts.
Utility Vehicles
RTV Series
- RTV900, RTV1100
- RTV-X900 (early models)
Utility vehicles may use sub belts to assist with accessory drive systems under varying workloads.
Part Details:
- Part Name: V-BELT(SUB)
- Part Number: KU-3J08011120
- Belt Type: Classical V-Belt (Secondary/Sub Belt)
- Function: Supports auxiliary/secondary drive systems
- Material: Heat- and wear-resistant rubber with reinforced tensile cords
- Key Features:
- Designed for secondary drive applications
- مقاresistant to heat, wear, and cracking
- Maintains stable tension and alignment
- Reduces load on primary belts
- Enhances overall drive system efficiency
