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Porsche Boxster Belt Tensioner

2 items

Find an A-Premium belt tensioner for squealing, slipping or uneven belt wear. Browse drive belt tensioners and pulley assemblies for your vehicle.

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Belt Tensioner for Porsche 718 Boxster Cayman 2017-2021 911 2009-2020 GASBelt Tensioner for Porsche 718 Boxster Cayman 2017-2021 911 2009-2020 GAS
A-Premium®Part # APBT0268
Belt Tensioner for Porsche 718 Boxster Cayman 2017-2021 911 2009-2020 GAS
4.6173 Reviews
$38.99
Low stock: Only 2 left
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3-year warranty
90 days free return
Fits 2017 - 2020 Porsche 911, 2013 - 2016 Porsche 911, 2009 - 2009 Porsche 911, 2010 - 2012 Porsche 911, 2009 - 2015 Porsche 911, 2016 - 2016 Porsche 911, 2017 - 2019 Porsche 911, 2016 - 2016 Porsche 911, 2018 - 2018 Porsche 911, 2019 - 2019 Porsche 911, 2017 - 2019 Porsche 718 Boxster, 2021 - 2021 Porsche 718 Boxster, 2021 - 2021 Porsche 718 Cayman, 2017 - 2019 Porsche 718 Cayman, 2021 - 2021 Porsche 718 Cayman, 2013 - 2016 Porsche Boxster, 2009 - 2012 Porsche Boxster, 2009 - 2016 Porsche Boxster, 2016 - 2016 Porsche Boxster, 2014 - 2016 Porsche Cayman
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Porsche Boxster
Item LocatedUnited States
Quantity1
ConditionNew
item #1004WD6S
Note
For Porsche 911 2009, the part fits Carrera & Targa 4 submodel.
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Vaico V45-0074 Accessory Drive Belt Tensioner Assembly
VaicoPart # V45-0074
Vaico V45-0074 Accessory Drive Belt Tensioner Assembly
4.17 Reviews
$234.99
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3-year warranty
90 days free return
Fits 1997-1999 Porsche Boxster, 2000-2000 Porsche Boxster, 2000-2000 Porsche Boxster, 2001-2003 Porsche Boxster, 2001-2003 Porsche Boxster, 2004-2004 Porsche Boxster
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Porsche Boxster
Item LocatedUnited States
Quantity1
Part interchange
V45-0074, 75207301, 34540, 99610226050, 99710226000, 0N2077, 30934540
item #1000ZUR2
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What does a belt tensioner do?

Seat belt tensioners represent an integral facet of contemporary automotive safety systems. These sophisticated devices are meticulously engineered to augment passenger protection by mitigating the potentially injurious effects of a vehicular collision or abrupt deceleration event. 

Belt tensioner noise

Belt tensioner noise is typically an indication of a problem within the engine's accessory drive system, and it should not be ignored.

Squealing or Whining Noise: A common sign of a failing or worn-out belt tensioner is a high-pitched squealing or whining noise. This noise is often most noticeable when you start the engine or when you engage accessories like the air conditioner or power steering.

Rattling or Grinding Noise: A failing tensioner may also produce a rattling or grinding noise, especially at higher engine speeds or when the drive belt is under load.

Intermittent Noise: The noise produced by a failing belt tensioner can be intermittent, depending on factors like engine temperature and load.

Belt tensioner replacement

Replacing a belt tensioner is a relatively straightforward mechanical procedure, but it does require some mechanical knowledge and the right tools. Steps to follow when you are planning to replace your seal belt tensioner.

  1. Safety first: Ensure the engine is off, and the vehicle is secure. Disconnect the battery if necessary.
  2. Locate tensioner: Find the belt tensioner, usually a pulley on a bracket with a spring-loaded arm.
  3. Release belt tension: Use the right tool to rotate the tensioner arm, relieving tension on the drive belt.
  4. Remove belt: Carefully slide the belt off the pulleys. Note routing for reference.
  5. Remove old tensioner: Unbolt the old tensioner, keeping track of the hardware.
  6. Install new tensioner: Place the new tensioner in the same spot and secure it with bolts. Align it correctly.
  7. Reinstall belt: Put the belt back on the pulleys, ensuring proper alignment.
  8. Adjust tension: Use the tool to apply tension and follow the manufacturer's specs.
  9. Double-check: Confirm belt alignment and tension on all pulleys.
  10. Test: Start the engine, listen for issues, and check belt movement.
  11. Reconnect battery: If disconnected earlier, reconnect the vehicle's battery.
  12. Dispose of old parts: Properly dispose of the old tensioner and parts.

Related Blogs

Should You Replace the Tensioner When Replacing a Cracked Serpentine Belt?

Don't automatically replace the tensioner with a cracked serpentine belt. Check for weak spring force, misalignment, or noise. Replace both if the tensioner is worn; otherwise, swapping just the belt is often sufficient.

Aug 28, 2026