Gates Auxiliary Belt Tensioner - T39387

The Gates DriveAlign Belt Tensioner (Part Number: T39387) is engineered to meet OE-quality standar...

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eBayGATES-OE T39387 Belt Tensioner, V-ribbed belt for SEAT,SKODA,VW
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My Motor WorldGates T39387 DriveAlign Tensioner
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Product Information

Full details

The Gates DriveAlign Belt Tensioner (T39387) is designed for automotive technicians and DIY enthusiasts who require an OE-quality replacement to maintain V-ribbed belt systems in SEAT, SKODA, and VW vehicles. This component provides the critical tension necessary to prevent belt slippage and ensure long-term engine component reliability, though it requires precise installation and is best replaced as part of a complete belt kit overhaul.

All features

Model Part NumberT39387
BrandGates

Extended Product Information

FAQs

Should I replace the belt when replacing the tensioner?

Yes, the manufacturer recommends replacing the entire belt kit during installation for optimal performance.

Is this part compatible with my vehicle?

This tensioner is compatible with vehicles using OEM references SEAT 04E145299E, SKODA 04E145299E, and VW 04E145299E.

What are the dimensions of the T39387?

The part features a width of 24.2 mm and an outer diameter of 65.2 mm.

What type of belt system is this for?

This tensioner is designed specifically for V-ribbed belt systems.

Can I install this myself?

While DIY installation is possible with the correct tools, professional installation is recommended due to the tension involved in the drive system.

How do I know if my tensioner is bad?

Common signs include audible chirping or squealing, visible belt wear, or the belt appearing loose during engine operation.

Troubleshooting

Belt squealing after installation

Verify the belt is properly seated in all pulley grooves and confirm the tensioner is correctly engaged.

Tensioner arm does not move

Check for obstructions in the pivot area or ensure the mounting bolt is torqued to the manufacturer's specification rather than overtightened.

Pros and Cons

Pros

  • Meets strict OE quality standards
  • Prevents slippage in V-ribbed systems
  • Precise fit for specific SEAT, SKODA, and VW engines
  • Reduces operational noise from belt drive components

Cons

  • Requires professional installation for best results
  • Manufacturer recommends replacing the entire belt kit simultaneously
  • Specific compatibility restricted to select VW Group engine models

Setup, Compatibility & Care

Installation requires access to the serpentine belt path, typically involving a tensioner tool to release tension from the old unit. Always compare the T39387 dimensions against your existing part before mounting. Ensure the mounting surfaces are clean and free of debris. Compatibility covers vehicles using OEM part references SEAT 04E145299E, SKODA 04E145299E, and VW 04E145299E. Maintenance involves periodic inspection of the belt for cracks and ensuring the tensioner arm moves freely through its full range of motion. Gates strongly advises replacing the drive belt simultaneously to prevent a new tensioner from struggling against a stretched or worn belt.

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