Aux Belt Idler Pulley - Gates - T36849
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eBayGATES T36849 Deflection/Guide Pulley, V-ribbed belt for AUDI,BENTLEY,VW
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Product Information
Full details
This Gates T36849 Aux Belt Idler Pulley is designed for vehicle maintenance professionals and DIY enthusiasts needing a reliable replacement deflection/guide pulley for v-ribbed belts. Its key benefit is ensuring proper belt tension and alignment, crucial for the optimal performance of accessory systems. A potential caveat is the need to verify specific vehicle compatibility before purchase, as it fits a range of Audi, Bentley, and VW models. Key features include its durable plastic construction, DriveAlign™ surface technology for reduced noise and vibration, and precise dimensions for a correct fit.
All features
| Model Part Number | T36849 |
|---|---|
| Brand | Gates |
Extended Product Information
FAQs
What is the main function of an idler pulley?
An idler pulley guides the serpentine belt and helps maintain proper tension. It ensures the belt runs smoothly along its path, preventing slippage and ensuring optimal performance of all belt-driven accessories.
How do I know if my idler pulley needs replacement?
Common signs include squealing or chirping noises from the engine bay, visible wear or damage on the pulley, or erratic behavior of belt-driven accessories. If the pulley feels loose, wobbly, or difficult to spin by hand, it likely needs replacement.
What does 'DriveAlign™ surface' mean?
DriveAlign™ is a surface technology developed by Gates that aims to reduce noise and vibration generated by the belt and pulley interaction, leading to a quieter and smoother operation of the accessory drive system.
Can I use this pulley on any vehicle?
No, this pulley is designed for specific Audi, Bentley, and VW models. It is essential to verify compatibility using the part number T36849 and comparing it with your vehicle's requirements or OEM part numbers.
What materials is the Gates T36849 pulley made of?
This idler pulley is constructed from durable plastic.
What are the key dimensions of this pulley?
The pulley has a width of 28.2 mm, an outer diameter of 55 mm, and an inner diameter of 17 mm.
Is it recommended to replace the serpentine belt when replacing the idler pulley?
Yes, it is generally recommended to replace the serpentine belt at the same time you replace an idler pulley, especially if the belt shows any signs of wear, cracking, or glazing. This ensures maximum lifespan and reliability for both components.
Troubleshooting
Squealing noise from the belt area.
This can indicate a worn idler pulley bearing or improper belt tension. Inspect the pulley for smooth rotation and check belt tension. Replace if worn or noisy.
Belt slippage or premature wear.
A failing idler pulley may not maintain adequate belt tension. Check the pulley for excessive play or stiffness. Replace the pulley and potentially the belt if wear is evident.
Accessory components not functioning correctly (e.g., no power steering, weak alternator output).
This often results from belt slippage caused by an issue with the idler pulley or tensioner. Verify the idler pulley is functioning correctly and maintaining proper belt tension.
Pros and Cons
Pros
- Ensures proper serpentine belt tension and alignment.
- DriveAlign™ surface technology promotes quieter operation.
- Durable construction for longevity in harsh engine environments.
- Designed for direct fitment with compatible OEM part numbers.
- Helps prevent premature belt wear and accessory system failure.
Cons
- Requires careful verification of vehicle compatibility before purchase.
- Plastic construction may be perceived as less durable than metal by some users.
- Not a universal part; specific application needed.
Setup, Compatibility & Care
Compatibility Check:
Before installation, it is crucial to verify compatibility with your specific vehicle. Use the provided part number (T36849) and cross-reference it with your vehicle's make, model, and year, as well as specific engine type. The Gates T36849 is known to be compatible with OEM part numbers such as 059903341AG, 059903341Q, and 059903341T, and fits various Audi, Bentley, and VW models. If you are unsure, consult your vehicle's service manual or contact a parts specialist using your VIN.
Installation:
Installation of an idler pulley typically involves accessing the serpentine belt system, which often requires removing other components for clear access. The old pulley is unbolted, and the new Gates T36849 is secured in its place. Ensure the new pulley spins freely without wobble or resistance. It is recommended to replace the serpentine belt at the same time if it shows signs of wear, cracking, or glazing.
Care:
This pulley requires minimal user care once installed. It is designed to be a long-lasting component. Regular visual inspections of the serpentine belt system during routine maintenance are advised. Look for any signs of wear, damage, or unusual noise from the pulley. If any issues are detected, the pulley should be inspected and potentially replaced by a qualified technician.