Product Descreiption
1. Specifications
- Material: Cast iron / high-strength metal
- Diameter: 6-1/4″ (158.75 mm)
- Grooves: 8 grooves (for serpentine belt)
- Belt Type: Serpentine (multi-ribbed)
- Weight: ~1.25–1.5 kg
- Dimensions: ~180 × 180 × 130 mm
- Fit: Cummins QSC, ISB, QSB, ISC engines
2. Function
- Power Transfer: Transmits rotational power from the engine crankshaft to the cooling fan
- Cooling System: Drives the radiator fan to draw air through the radiator, regulating engine temperature
- Belt Tension: Maintains proper tension for the serpentine belt, ensuring efficient operation
3. Installation & Location
- Mounting Position: Front of the engine, directly attached to the crankshaft pulley hub
- Orientation: Mounted on the front end of the crankshaft (engine front, near radiator)
- Installation:
- Align pulley holes with crankshaft hub bolts
- Torque bolts to OEM specification
- Install serpentine belt over 8 grooves
- Verify belt tension and alignment
4. Application
- Engine Models: Cummins 4B, 6B, 4BT, 6CT, 6BT, 6C, QSB, QSC, ISB, ISC
- Equipment: Trucks, excavators, generators, marine engines, construction machinery
