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Peterbilt Belt Tensioner

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Belt Tensioner with Pulley for 2000-2001 Peterbilt 379Belt Tensioner with Pulley for 2000-2001 Peterbilt 379
A-Premium®Part # APBT0251
Belt Tensioner with Pulley for 2000-2001 Peterbilt 379
4.7125 Reviews
$66.99
Quantity Less than 4
Edit ZIP code
3-year warranty
90 days free return
Fits Peterbilt 379: 2000 2001
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Peterbilt
Item LocatedUnited States
Quantity1
MaterialSteel
Part interchange
38514, 1105125, 1260152, 1333528, 1333542, 1333544, 1359457, 199011, 
...View more
item #10138P9Z
Note
This item comes with the pulley.
Show less
Belt Tensioner with Pulley for 2004-2006 Peterbilt 320
A-Premium®Part # APBT0340
Belt Tensioner with Pulley for 2004-2006 Peterbilt 320
4.7125 Reviews
$63.99
Edit ZIP code
3-year warranty
90 days free return
Fits Peterbilt 320: 2004 2005 2006
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Peterbilt
Item LocatedUnited States
Quantity1
MaterialSteel
Part interchange
38586, 15170283, 2222880
item #1013952Z
Note
【Note-1】 This item only fit the Diesel fuel.
【Note-2】 It comes with pulley.
Show less
Belt Tensioner with Pulley for 2014 Peterbilt 386
A-Premium®Part # APBT0336
Belt Tensioner with Pulley for 2014 Peterbilt 386
4.7125 Reviews
$73.99
Quantity Less than 2
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Peterbilt
Item LocatedUnited States
Quantity1
MaterialSteel
Part interchange
38569, 2002279, 3477963
item #1000EZRK
Note
This item comes with the Pulley.
Show less
Belt Tensioner with Pulley for 2011-2015 Peterbilt 325
A-Premium®Part # APBT0257
Belt Tensioner with Pulley for 2011-2015 Peterbilt 325
4.7125 Reviews
$56.99
Quantity Less than 3
Edit ZIP code
3-year warranty
90 days free return
Fits Peterbilt 325: 2011 2012 2013 2014 2015
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Peterbilt
Item LocatedUnited States
Quantity1
MaterialSteel
Part interchange
38702, 4929688, 5270678
item #1004WDWX
Note
The part comes with the pulley.
Show less
Belt Tensioner with Pulley for 2000-2001 Peterbilt 378
A-Premium®Part # APBT0251
Belt Tensioner with Pulley for 2000-2001 Peterbilt 378
4.7125 Reviews
$66.99
Quantity Less than 4
Edit ZIP code
3-year warranty
90 days free return
Fits Peterbilt 378: 2000 2001
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Peterbilt
Item LocatedUnited States
Quantity1
MaterialSteel
Part interchange
38514, 1105125, 1260152, 1333528, 1333542, 1333544, 1359457, 199011, 
...View more
item #10138Q8P
Note
This item comes with the pulley.
Show less
Belt Tensioner with Pulley for 2007 Peterbilt 340
A-Premium®Part # APBT0340
Belt Tensioner with Pulley for 2007 Peterbilt 340
4.7125 Reviews
$63.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2007 Peterbilt 340
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Peterbilt
Item LocatedUnited States
Quantity1
MaterialSteel
Part interchange
38586, 15170283, 2222880
item #10050S14
Note
【Note-1】 This item only fit the Diesel fuel.
【Note-2】 It comes with pulley.
Show less
Belt Tensioner with Pulley for 2014-2020 Peterbilt 567
A-Premium®Part # APBT0336
Belt Tensioner with Pulley for 2014-2020 Peterbilt 567
4.7125 Reviews
$73.99
Quantity Less than 2
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Peterbilt
Item LocatedUnited States
Quantity1
MaterialSteel
Part interchange
38569, 2002279, 3477963
item #1012WLU4
Note
This item comes with the Pulley.
Show less
Belt Tensioner with Pulley for 2011-2021 Peterbilt 337
A-Premium®Part # APBT0257
Belt Tensioner with Pulley for 2011-2021 Peterbilt 337
4.7125 Reviews
$56.99
Quantity Less than 3
Edit ZIP code
3-year warranty
90 days free return
Fits Peterbilt 337: 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Peterbilt
Item LocatedUnited States
Quantity1
MaterialSteel
Part interchange
38702, 4929688, 5270678
item #1004WEWA
Note
The part comes with the pulley.
Show less
Belt Tensioner with Pulley for 2012-2015 Peterbilt 384
A-Premium®Part # APBT0291
Belt Tensioner with Pulley for 2012-2015 Peterbilt 384
4.7125 Reviews
$57.99
Quantity Less than 2
Edit ZIP code
3-year warranty
90 days free return
Fits Peterbilt 384: 2012 2013 2014 2015
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Peterbilt
Item LocatedUnited States
Quantity1
MaterialSteel
Part interchange
38610, 2891940, 3104149, 3682255, 3682683, 3690067
item #101392P4
Note
It comes with pulley.
Show less
Belt Tensioner with Pulley for 2005-2007 Peterbilt 335
A-Premium®Part # APBT0340
Belt Tensioner with Pulley for 2005-2007 Peterbilt 335
4.7125 Reviews
$63.99
Edit ZIP code
3-year warranty
90 days free return
Fits Peterbilt 335: 2005 2006 2007
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Peterbilt
Item LocatedUnited States
Quantity1
MaterialSteel
Part interchange
38586, 15170283, 2222880
item #101393RT
Note
【Note-1】 This item only fit the Diesel fuel.
【Note-2】 It comes with pulley.
Show less
Belt Tensioner with Pulley for 2014-2015 Peterbilt 384
A-Premium®Part # APBT0336
Belt Tensioner with Pulley for 2014-2015 Peterbilt 384
4.7125 Reviews
$73.99
Quantity Less than 2
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Peterbilt
Item LocatedUnited States
Quantity1
MaterialSteel
Part interchange
38569, 2002279, 3477963
item #1012WNAH
Note
This item comes with the Pulley.
Show less
Belt Tensioner with Pulley for 2011-2012 2014-2015 2021-2022 Peterbilt 330
A-Premium®Part # APBT0257
Belt Tensioner with Pulley for 2011-2012 2014-2015 2021-2022 Peterbilt 330
4.7125 Reviews
$56.99
Quantity Less than 3
Edit ZIP code
3-year warranty
90 days free return
Fits Peterbilt 330: 2011 2012 2014 2015 2021 2022
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Peterbilt
Item LocatedUnited States
Quantity1
MaterialSteel
Part interchange
38702, 4929688, 5270678
item #1004WC7Z
Note
The part comes with the pulley.
Show less
Belt Tensioner with Pulley for 2007-2015 Peterbilt 386
A-Premium®Part # APBT0291
Belt Tensioner with Pulley for 2007-2015 Peterbilt 386
4.7125 Reviews
$57.99
Quantity Less than 2
Edit ZIP code
3-year warranty
90 days free return
Fits Peterbilt 386: 2007 2008 2009 2010 2011 2012 2013 2014 2015
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Peterbilt
Item LocatedUnited States
Quantity1
MaterialSteel
Part interchange
38610, 2891940, 3104149, 3682255, 3682683, 3690067
item #1013965P
Note
It comes with pulley.
Show less
Belt Tensioner with Pulley for 2006-2007 Peterbilt 357
A-Premium®Part # APBT0340
Belt Tensioner with Pulley for 2006-2007 Peterbilt 357
4.7125 Reviews
$63.99
Edit ZIP code
3-year warranty
90 days free return
Fits Peterbilt 357: 2006 2007
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Peterbilt
Item LocatedUnited States
Quantity1
MaterialSteel
Part interchange
38586, 15170283, 2222880
item #101394W5
Note
【Note-1】 This item only fit the Diesel fuel.
【Note-2】 It comes with pulley.
Show less
Belt Tensioner with Pulley for 2015-2017 Peterbilt 367
A-Premium®Part # APBT0336
Belt Tensioner with Pulley for 2015-2017 Peterbilt 367
4.7125 Reviews
$73.99
Quantity Less than 2
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Peterbilt
Item LocatedUnited States
Quantity1
MaterialSteel
Part interchange
38569, 2002279, 3477963
item #1012WK04
Note
This item comes with the Pulley.
Show less
Belt Tensioner with Pulley for 2022-2023 Peterbilt 536
A-Premium®Part # APBT0257
Belt Tensioner with Pulley for 2022-2023 Peterbilt 536
4.7125 Reviews
$56.99
Quantity Less than 3
Edit ZIP code
3-year warranty
90 days free return
Fits Peterbilt 536: 2022 2023
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Peterbilt
Item LocatedUnited States
Quantity1
MaterialSteel
Part interchange
38702, 4929688, 5270678
item #1004W9D7
Note
The part comes with the pulley.
Show less
Belt Tensioner with Pulley for 2008-2015 Peterbilt 388
A-Premium®Part # APBT0291
Belt Tensioner with Pulley for 2008-2015 Peterbilt 388
4.7125 Reviews
$57.99
Quantity Less than 2
Edit ZIP code
3-year warranty
90 days free return
Fits Peterbilt 388: 2008 2009 2010 2011 2012 2013 2014 2015
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Peterbilt
Item LocatedUnited States
Quantity1
MaterialSteel
Part interchange
38610, 2891940, 3104149, 3682255, 3682683, 3690067
item #101392H4
Note
It comes with pulley.
Show less
Belt Tensioner with Pulley for 2004-2005 2007 Peterbilt 330
A-Premium®Part # APBT0340
Belt Tensioner with Pulley for 2004-2005 2007 Peterbilt 330
4.7125 Reviews
$63.99
Edit ZIP code
3-year warranty
90 days free return
Fits Peterbilt 330: 2004 2005 2007
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Peterbilt
Item LocatedUnited States
Quantity1
MaterialSteel
Part interchange
38586, 15170283, 2222880
item #1013944P
Note
【Note-1】 This item only fit the Diesel fuel.
【Note-2】 It comes with pulley.
Show less
Belt Tensioner with Pulley for 2014 Peterbilt 388
A-Premium®Part # APBT0336
Belt Tensioner with Pulley for 2014 Peterbilt 388
4.7125 Reviews
$73.99
Quantity Less than 2
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Peterbilt
Item LocatedUnited States
Quantity1
MaterialSteel
Part interchange
38569, 2002279, 3477963
item #1000EXHN
Note
This item comes with the Pulley.
Show less
Belt Tensioner with Pulley for 2007-2011 Peterbilt 387
A-Premium®Part # APBT0341
Belt Tensioner with Pulley for 2007-2011 Peterbilt 387
4.7125 Reviews
$78.99
Quantity Less than 3
Edit ZIP code
3-year warranty
90 days free return
Fits Peterbilt 387: 2007 2008 2009 2010 2011
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Peterbilt
Item LocatedUnited States
Quantity1
MaterialSteel
Part interchange
38587, 2871292, 2871293, 3682946, 3684428, 3691282, 3691283, 4299051, 
...View more
item #1013948V
Show less
Page 1 of 5

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.