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Guide Pulley
The Guide Pulley helps route the engine drive belt smoothly across the accessory system.
This pulley stabilizes belt movement by maintaining proper alignment, reducing vibration, and preventing belt slip. Made from high-strength metal with precision bearings, it delivers smooth rotation even under continuous load. Its durable construction withstands heat, friction, and constant engine vibration, ensuring long service life in heavy-duty commercial vehicles.
By keeping the belt properly guided, the pulley supports efficient operation of belt-driven components like the alternator, coolant pump, and air compressor. It also helps reduce noise, minimize wear, and improve overall engine reliability, especially in demanding operating conditions.
Key Features
- High-strength guide pulley for drive belt routing
- Precision bearings for smooth and quiet rotation
- Ensures proper belt alignment and stability
- Reduces vibration, slip, and premature belt wear
- Suitable for heavy-duty commercial diesel engines
Product Specifications
| GROUP | MODEL | REF. PART NUMBER | SPECIFICATIONS |
|---|---|---|---|
| 18.022 | 3128, 2523, 2528 | A0002021019 | Guide Pulley – Belt Routing Component |
Process Steps
- Remove old guide pulley and inspect mounting bracket
- Install new pulley and tighten to specification
- Check belt routing across all pulleys
- Start the engine and observe pulley rotation
- Verify smooth, wobble-free, and noise-free operation
- Ensure proper belt tension and alignment
FAQ
What does the guide pulley do?
It keeps the drive belt aligned and stable, ensuring smooth movement across engine accessories.
When should it be replaced?
When noise, wobbling, bearing wear, or belt misalignment is noticed.
