24/7 Customer service
USD
To make aftermarket auto parts an afterthought.
Add your vehicle
Address
Login
Cart
Item
CA$0.00
Summer Maintenance BannerSummer Maintenance Banner
Add your vehicle to ensure fitment/Choose a yearRequired Fields
Select a different vehicle
Make/Model
VIN
Save

Autocar LLC. Belt Tensioner

9 items

Upgrade your vehicle's belt tensioner with A-Premium's high-quality options. Choose reliability and durability for a smoother ride.

  • All filters
  • Sort By
  • Year
  • Model
  • Price
  • Brand
  • Material
  • Warranty
Belt Tensioner with Pulley for Ford F650 F750 Freightliner Blue Bird El DoradoBelt Tensioner with Pulley for Ford F650 F750 Freightliner Blue Bird El Dorado
A-Premium®Part # APBT0327
Belt Tensioner with Pulley for Ford F650 F750 Freightliner Blue Bird El Dorado
4.514 Reviews
CA$59.99
CA$62.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2011 - 2011 Blue Bird All American RE, 2011 - 2011 Blue Bird All American RE, 2010 - 2010 Freightliner MT45, 2009 - 2009 Freightliner MT45, 2007 - 2007 American LaFrance ALF Eagle, 2007 - 2007 American LaFrance Condor, 2007 - 2007 Autocar LLC. Xpeditor WXLL, 2007 - 2007 Freightliner Condor, 2006 - 2007 Autocar LLC. Xpeditor WX, 2006 - 2006 Autocar LLC. Xpeditor WXR, 2006 - 2006 Autocar LLC. Xpeditor WXR, 2006 - 2006 Freightliner Business Class M2, 2006 - 2006 Freightliner Condor, 2006 - 2006 Freightliner M2 106, 2006 - 2006 Freightliner MT35, 2006 - 2006 utocar LLC. Xpeditor WX, 2005 - 2005 El Dorado E-Z Rider II, 2005 - 2005 Freightliner Business Class M2, 2005 - 2005 Freightliner M2 106, 2005 - 2005 Freightliner M2 106
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Autocar LLC.
Item LocatedCanada
Quantity1
ConditionNew
item #1000H47K
Note
This item comes with the Pulley.
Show less
Belt Tensioner with Pulley for Freightliner Coronado 2011-2016 Western Star Mack
A-Premium®Part # APBT0291
Belt Tensioner with Pulley for Freightliner Coronado 2011-2016 Western Star Mack
4.514 Reviews
CA$78.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2020 - 2020 Kenworth W990, 2019 - 2021 International Harvester LoneStar, 2019 - 2020 Peterbilt 520, 2019 - 2019 Autocar LLC. Xpeditor, 2019 - 2019 International Harvester ProStar, 2018 - 2022 International Harvester HX520, 2018 - 2022 International Harvester LT625, 2018 - 2021 Peterbilt 367, 2018 - 2018 Peterbilt 365, 2017 - 2022 International Harvester HX620, 2016 - 2017 Freightliner 114SD, 2015 - 2022 Kenworth T880, 2015 - 2018 International Harvester 9900i, 2015 - 2016 International Harvester 5900i, 2015 - 2015 Western Star 6900XD, 2014 - 2021 Peterbilt 567, 2014 - 2019 Freightliner 122SD, 2014 - 2017 Autocar LLC. Xpeditor, 2014 - 2017 International Harvester LoneStar, 2014 - 2017 Mack CXU
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Autocar LLC.
Item LocatedCanada
Quantity1
ConditionNew
item #10050PL2
Note
It comes with pulley.
Show less
Belt Tensioner for Volvo VN ACL Freightliner International Harvester
A-Premium®Part # APBT0320
Belt Tensioner for Volvo VN ACL Freightliner International Harvester
4.514 Reviews
CA$99.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2011 - 2012 International Harvester 5500i, 2010 - 2011 Kenworth W900, 2010 - 2010 International Harvester 8600 TranStar, 2009 - 2011 International Harvester 5600i, 2009 - 2010 International Harvester WorkStar 7600, 2009 - 2010 Peterbilt 365, 2009 - 2009 Autocar LLC. Xpeditor, 2009 - 2009 International Harvester 8600 TranStar, 2009 - 2009 International Harvester ProStar, 2008 - 2012 Kenworth T660, 2008 - 2011 Peterbilt 367, 2008 - 2011 Peterbilt 384, 2008 - 2009 Autocar LLC. Xpeditor WX, 2008 - 2009 Autocar LLC. Xpeditor WXLL, 2008 - 2009 International Harvester WorkStar 7700, 2008 - 2008 International Harvester 8600 TranStar, 2008 - 2008 International Harvester WorkStar 7600, 2008 - 2008 Peterbilt 365, 2008 - 2008 Peterbilt 388, 2007 - 2011 Kenworth T800
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Autocar LLC.
Item LocatedCanada
Quantity1
ConditionNew
item #10059KC5
Note
This item only fits the vehicle with the Diesel engine.
Show less
Belt Tensioner with Pulley for Dodge Ram 2500 2007-2010 Ram 4500 Ram 5500
A-Premium®Part # APBT0306
Belt Tensioner with Pulley for Dodge Ram 2500 2007-2010 Ram 4500 Ram 5500
4.514 Reviews
CA$60.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2014 - 2015 Autocar LLC. Xpert, 2014 - 2015 Autocar LLC. Xspotter On Road, 2011 - 2022 Ram 2500, 2011 - 2022 Ram 3500, 2011 - 2022 Ram 5500, 2011 - 2021 Ram 4500, 2008 - 2010 Dodge Ram 4500, 2008 - 2010 Dodge Ram 5500, 2008 - 2010 Sterling Truck Bullet 45, 2008 - 2010 Sterling Truck Bullet 55, 2007 - 2010 Dodge Ram 2500, 2007 - 2010 Dodge Ram 3500, 2003 - 2009 Dodge Ram 2500, 2003 - 2008 Dodge Ram 3500
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Autocar LLC.
Item LocatedCanada
Quantity1
ConditionNew
item #10059NUS
Note
This item comes with pulley.
Show less
Accessory Belt Idler Pulley for Chevy Corvette Peterbilt Kenworth Autocar LLC.
A-Premium®Part # APBT0616
Accessory Belt Idler Pulley for Chevy Corvette Peterbilt Kenworth Autocar LLC.
4.514 Reviews
CA$40.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2011 - 2012 International Harvester 5500i, 2011 - 2011 Peterbilt 320, 2011 - 2011 Peterbilt 384, 2010 - 2011 Kenworth W900, 2009 - 2011 International Harvester 5600i, 2009 - 2009 Autocar LLC. Xpeditor, 2009 - 2009 International Harvester ProStar, 2008 - 2012 Kenworth T660, 2008 - 2010 International Harvester 8600 TranStar, 2008 - 2010 International Harvester WorkStar 7600, 2008 - 2010 Peterbilt 365, 2008 - 2009 Autocar LLC. Xpeditor WX, 2008 - 2009 Autocar LLC. Xpeditor WXLL, 2008 - 2009 International Harvester WorkStar 7700, 2008 - 2008 International Harvester 8500 TranStar, 2008 - 2008 Peterbilt 388, 2006 - 2009 Peterbilt 320, 2006 - 2007 International Harvester 8600 SBA, 2006 - 2007 Peterbilt 357, 2006 - 2006 Peterbilt 385
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Autocar LLC.
Item LocatedUnited States
Quantity1
MaterialSteel
ConditionNew
item #10183TDE
Show less
Accessory Belt Idler Pulley for Dodge Ram 2500 Ram 3500 Ram 4500 Sterling Truck
A-Premium®Part # APBT0626
Accessory Belt Idler Pulley for Dodge Ram 2500 Ram 3500 Ram 4500 Sterling Truck
4.514 Reviews
CA$47.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2025 - 2025 Ram 4500, 2025 - 2025 Ram 5500, 2014 - 2015 Autocar LLC. Xpert, 2014 - 2015 Autocar LLC. Xspotter On Road, 2011 - 2025 Ram 2500, 2011 - 2025 Ram 3500, 2011 - 2023 Ram 4500, 2011 - 2023 Ram 5500, 2008 - 2010 Dodge Ram 4500, 2008 - 2010 Dodge Ram 5500, 2008 - 2010 Sterling Truck Bullet 45, 2008 - 2010 Sterling Truck Bullet 55, 2007 - 2010 Dodge Ram 2500, 2007 - 2010 Dodge Ram 3500, 2003 - 2009 Dodge Ram 2500, 2003 - 2008 Dodge Ram 3500
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Autocar LLC.
Item LocatedUnited States
Quantity1
MaterialSteel
ConditionNew
item #10183RPH
Show less
Belt Idler Pulley for Kenworth T2000 T660 T680 T700 Mack CL CXU Peterbilt 320
A-Premium®Part # APBT0615
Belt Idler Pulley for Kenworth T2000 T660 T680 T700 Mack CL CXU Peterbilt 320
4.514 Reviews
CA$52.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2023 - 2023 Freightliner 114SD, 2023 - 2023 Kenworth T680, 2022 - 2024 Freightliner Cascadia, 2022 - 2023 Kenworth T680, 2022 - 2022 Freightliner 114SD, 2022 - 2022 International Harvester HX520, 2022 - 2022 International Harvester HX620, 2021 - 2021 Freightliner 122SD, 2021 - 2021 International Harvester HX520, 2021 - 2021 International Harvester HX620, 2021 - 2021 International Harvester LoneStar, 2021 - 2021 Kenworth T680, 2020 - 2023 International Harvester LT625, 2020 - 2023 Kenworth W990, 2020 - 2020 Peterbilt 520, 2020 - 2020 Peterbilt 520, 2019 - 2020 International Harvester LoneStar, 2019 - 2020 Peterbilt 567, 2019 - 2019 Autocar LLC. Xpeditor, 2019 - 2019 Freightliner Cascadia
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Autocar LLC.
Item LocatedUnited States
Quantity1
Part interchange
3682229, 3689465, 36223
ConditionNew
item #1015DUXH
Show less
Belt Tensioner with Pulley for Freightliner Cascadia 2012-2019 Volvo Peterbilt
A-Premium®Part # APBT0336
Belt Tensioner with Pulley for Freightliner Cascadia 2012-2019 Volvo Peterbilt
4.514 Reviews
CA$88.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2020 - 2020 Peterbilt 520, 2019 - 2019 Autocar LLC Xpeditor, 2019 - 2019 Peterbilt 520, 2018 - 2018 Autocar LLC Xpeditor, 2017 - 2017 Peterbilt 320, 2016 - 2020 Peterbilt 567, 2016 - 2019 Kenworth T880, 2016 - 2017 Freightliner 114SD, 2016 - 2016 Autocar LLC Xpeditor, 2016 - 2016 Autocar LLC Xpeditor, 2015 - 2017 Peterbilt 367, 2015 - 2015 Kenworth T800, 2015 - 2015 Peterbilt 320, 2015 - 2015 Peterbilt 567, 2014 - 2019 Kenworth T680, 2014 - 2019 Kenworth T800, 2014 - 2019 Kenworth W900, 2014 - 2018 Peterbilt 365, 2014 - 2017 Autocar LLC Xpeditor, 2014 - 2017 Mack CXU
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Autocar LLC.
Item LocatedCanada
Quantity1
ConditionNew
item #1000EZ9Z
Note
This item comes with the Pulley.
Show less
Belt Tensioner with Pulley for Autocar LLC. Ford Freightliner Kenworth Peterbilt
A-Premium®Part # APBT0257
Belt Tensioner with Pulley for Autocar LLC. Ford Freightliner Kenworth Peterbilt
4.514 Reviews
CA$105.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2022 - 2023 Peterbilt 536, 2021 - 2022 Freightliner M2 106, 2021 - 2022 International Harvester MV, 2021 - 2022 International Harvester MV607, 2021 - 2022 Peterbilt 330, 2020 - 2020 Freightliner MT55, 2020 - 2020 International Harvester MV, 2020 - 2020 Kenworth K370, 2020 - 2020 Kenworth T170, 2020 - 2020 Kenworth T370, 2019 - 2020 International Harvester MV607, 2019 - 2019 International Harvester MV607, 2017 - 2022 Kenworth T270, 2017 - 2018 Kenworth T370, 2017 - 2017 Autocar LLC. Xspotter On Road, 2017 - 2017 Freightliner S2C, 2017 - 2017 IC Corporation CE School Bus, 2016 - 2021 Peterbilt 337, 2016 - 2019 International Harvester 4300LP, 2016 - 2019 International Harvester 7300
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Autocar LLC.
Item LocatedCanada
Quantity1
ConditionNew
item #1004WAE0
Note
The part comes with the pulley.
Show less

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