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  2. Auto Parts
  3. Belts and Cooling
  4. Accessory Drive Belt System Components
  5. Drive Belt Tensioner Assembly
  6. Gates 38503

Gates 38503 Drive Belt Tensioner Assembly

Gates 38503 Drive Belt Tensioner Assembly Image 1
Gates 38503 Drive Belt Tensioner Assembly Image 2
Gates 38503 Drive Belt Tensioner Assembly Image 3
Gates 38503 Drive Belt Tensioner Assembly

Gates
Brand:Gates
Part Number: 38503
UPC: 072053557992
Weight: 4.1 lbs
Condition:New



On Sale:

$97.83

Availability:
7 in Stock
Warehouse: US-4
Quantity:

Product Information

Description:

Get the Gates 38503 Drive Belt Tensioner Assembly for your vehicle. Buy now and secure your purchase online!

FleetRunner Heavy-Duty Automatic Belt Tensioners are the longest-lasting belt tensioners in the industry, engineered to exceed demanding OEM requirements. In laboratory tests under extreme peak-to-peak vibration and contamination tests, FleetRunner heavy-duty tensioners lasted up to 3X longer than competitive aftermarket tensioners.

Features and Benefits:

  • Chrome-silicone round torsion spring for less ex-fatigue than at-spring designs
  • Double row bearings carry more load and last up to 3X longer than two individual bearings
  • Long-lasting steel pulleys with dust shields to protect internal bearings from contamination
  • Optimized components engineered for maximum strength and durability
  • Patented damping mechanism provides maximum stability, reducing vibration and increasing the life of the belt, tensioner and other accessory drive components
  • Patented design provides superior belt alignment and tension for improved drive efficiency and life
  • Patented labyrinth seal prevents contamination of internal parts for maximum durability and service life

Specifications:

Bearing Bore Inside Diameter:
1.18 in.
Bearing Bore Inside Diameter:
30 mm
Belt Type:
V-Ribbed
Contact Surface:
Smooth/Backside
Contents:
Tensioner Assy., Bolt
Material:
Steel
Mounting Hole Quantity:
1
Outside Diameter 1 (in):
2.95
Outside Diameter 1 (mm):
75
Pulley 1 Flanged:
No
Pulley 1 Groove Quantity:
0
Pulley Quantity:
1
Width 1 (in):
1.57
Width 1 (mm):
40
ACDelco #:
38503
Alliance Truck Parts #:
GT38503
CARQUEST #:
38503
Dayco #:
89436
Freightliner Trucks #:
0127846000
Freightliner Trucks #:
0517808000
Goodyear #:
49520
Litens #:
910503A
NAPA Belts/Hose #:
38503
SKF #:
VKM910503
Tendeco #:
910503
Country of Origin:
CA

Select a vehicle to narrow Gates 38503 Drive Belt Tensioner Assembly fitment info!

Last Updated: 08/13/2024

Years Vehicle Per Vehicle Position Fit NotesFitment Notes

2008

 

2007

 

2006

 

2005

 

2008

 

2007

 

2006

 

2005

 
American LaFrance ALF Eagle

14L L6 Diesel Turbo/Aftercooled
1
 
Fan
 
DriveAlign Premium OE Automatic Belt Tensioner
 

American LaFrance ALF Eagle



14L L6 Diesel Turbo/Aftercooled

Fan DriveAlign Premium OE Automatic Belt Tensioner

1 Per Vehicle

2011

 

2010

 

2009

 

2008

 

2007

 

2006

 

2005

 

2004

 

2003

 

2011

 

2010

 

2009

 

2008

 

2007

 

2006

 

2005

 

2004

 

2003

 
Freightliner Argosy

14L L6 Diesel Turbo/Aftercooled
1
 
Fan
 
DriveAlign Premium OE Automatic Belt Tensioner
 

Freightliner Argosy



14L L6 Diesel Turbo/Aftercooled

Fan DriveAlign Premium OE Automatic Belt Tensioner

1 Per Vehicle

2008

 

2007

 

2006

 

2005

 

2004

 

2003

 

2002

 

2001

 

2000

 

2008

 

2007

 

2006

 

2005

 

2004

 

2003

 

2002

 

2001

 

2000

 
Freightliner Argosy

12.7L L6 Diesel Turbo/Aftercooled
1
 
Fan
 
DriveAlign Premium OE Automatic Belt Tensioner
 

Freightliner Argosy



12.7L L6 Diesel Turbo/Aftercooled

Fan DriveAlign Premium OE Automatic Belt Tensioner

1 Per Vehicle

2003

 

2002

 

2001

 

2000

 

2003

 

2002

 

2001

 

2000

 
Freightliner Argosy

11.1L L6 Diesel Turbo/Aftercooled
1
 
Fan
 
DriveAlign Premium OE Automatic Belt Tensioner
 

Freightliner Argosy



11.1L L6 Diesel Turbo/Aftercooled

Fan DriveAlign Premium OE Automatic Belt Tensioner

1 Per Vehicle

2014

 

2013

 

2014

 

2013

 
Freightliner Cascadia

14L L6 Diesel Turbo/Aftercooled
1
 
Fan
 
DriveAlign Premium OE Automatic Belt Tensioner
 

Freightliner Cascadia



14L L6 Diesel Turbo/Aftercooled

Fan DriveAlign Premium OE Automatic Belt Tensioner

1 Per Vehicle

2011

 

2010

 

2009

 

2008

 

2011

 

2010

 

2009

 

2008

 
Freightliner Cascadia

14L L6 Diesel Turbo/Aftercooled
1
 
Fan
 
DriveAlign Premium OE Automatic Belt Tensioner
 

Freightliner Cascadia



14L L6 Diesel Turbo/Aftercooled

Fan DriveAlign Premium OE Automatic Belt Tensioner

1 Per Vehicle

2011

 

2010

 

2009

 

2011

 

2010

 

2009

 
Freightliner Century Class

14L L6 Diesel Turbo/Aftercooled
1
 
Fan
 
DriveAlign Premium OE Automatic Belt Tensioner
 

Freightliner Century Class



14L L6 Diesel Turbo/Aftercooled

Fan DriveAlign Premium OE Automatic Belt Tensioner

1 Per Vehicle

2007

 

2006

 

2005

 

2004

 

2007

 

2006

 

2005

 

2004

 
Freightliner Century Class

12.7L L6 Diesel Turbo/Aftercooled,
14L L6 Diesel Turbo/Aftercooled
1
 
Fan
 
DriveAlign Premium OE Automatic Belt Tensioner
 

Freightliner Century Class



12.7L L6 Diesel Turbo/Aftercooled,
14L L6 Diesel Turbo/Aftercooled

Fan DriveAlign Premium OE Automatic Belt Tensioner

1 Per Vehicle

2009

 

2008

 

2007

 

2006

 

2005

 

2009

 

2008

 

2007

 

2006

 

2005

 
Freightliner Classic

14L L6 Diesel Turbo/Aftercooled
1
 
Fan
 
DriveAlign Premium OE Automatic Belt Tensioner
 

Freightliner Classic



14L L6 Diesel Turbo/Aftercooled

Fan DriveAlign Premium OE Automatic Belt Tensioner

1 Per Vehicle

2007

 

2006

 

2005

 

2007

 

2006

 

2005

 
Freightliner Classic

12.7L L6 Diesel Turbo/Aftercooled
1
 
Fan
 
DriveAlign Premium OE Automatic Belt Tensioner
 

Freightliner Classic



12.7L L6 Diesel Turbo/Aftercooled

Fan DriveAlign Premium OE Automatic Belt Tensioner

1 Per Vehicle

2008

 

2007

 

2006

 

2005

 

2008

 

2007

 

2006

 

2005

 
Freightliner Classic XL

14L L6 Diesel Turbo/Aftercooled
1
 
Fan
 
DriveAlign Premium OE Automatic Belt Tensioner
 

Freightliner Classic XL



14L L6 Diesel Turbo/Aftercooled

Fan DriveAlign Premium OE Automatic Belt Tensioner

1 Per Vehicle

2007

 

2006

 

2005

 

2007

 

2006

 

2005

 
Freightliner Classic XL

12.7L L6 Diesel Turbo/Aftercooled
1
 
Fan
 
DriveAlign Premium OE Automatic Belt Tensioner
 

Freightliner Classic XL



12.7L L6 Diesel Turbo/Aftercooled

Fan DriveAlign Premium OE Automatic Belt Tensioner

1 Per Vehicle

2011

 

2010

 

2009

 

2008

 

2007

 

2006

 

2005

 

2004

 

2011

 

2010

 

2009

 

2008

 

2007

 

2006

 

2005

 

2004

 
Freightliner Columbia

14L L6 Diesel Turbo/Aftercooled
1
 
Fan
 
DriveAlign Premium OE Automatic Belt Tensioner
 

Freightliner Columbia



14L L6 Diesel Turbo/Aftercooled

Fan DriveAlign Premium OE Automatic Belt Tensioner

1 Per Vehicle

2008

 

2007

 

2006

 

2005

 

2004

 

2008

 

2007

 

2006

 

2005

 

2004

 
Freightliner Columbia

12.7L L6 Diesel Turbo/Aftercooled
1
 
Fan
 
DriveAlign Premium OE Automatic Belt Tensioner
 

Freightliner Columbia



12.7L L6 Diesel Turbo/Aftercooled

Fan DriveAlign Premium OE Automatic Belt Tensioner

1 Per Vehicle

2001

 

2001

 
Freightliner Condor

10.3L L6 Diesel Turbo,
12L 6 Diesel Turbo
1
 
Air Conditioning
 
DriveAlign Premium OE Automatic Belt Tensioner
 

Freightliner Condor



10.3L L6 Diesel Turbo,
12L 6 Diesel Turbo

Air Conditioning DriveAlign Premium OE Automatic Belt Tensioner

1 Per Vehicle

2009

 

2008

 

2007

 

2006

 

2005

 

2004

 

2003

 

2009

 

2008

 

2007

 

2006

 

2005

 

2004

 

2003

 
Freightliner Coronado

14L L6 Diesel Turbo/Aftercooled
1
 
Fan
 
DriveAlign Premium OE Automatic Belt Tensioner
 

Freightliner Coronado



14L L6 Diesel Turbo/Aftercooled

Fan DriveAlign Premium OE Automatic Belt Tensioner

1 Per Vehicle

2007

 

2006

 

2005

 

2004

 

2003

 

2002

 

2007

 

2006

 

2005

 

2004

 

2003

 

2002

 
Freightliner Coronado

12.7L L6 Diesel Turbo/Aftercooled
1
 
Fan
 
DriveAlign Premium OE Automatic Belt Tensioner
 

Freightliner Coronado



12.7L L6 Diesel Turbo/Aftercooled

Fan DriveAlign Premium OE Automatic Belt Tensioner

1 Per Vehicle

2008

 

2007

 

2006

 

2005

 

2008

 

2007

 

2006

 

2005

 
Freightliner FLD120

12.7L L6 Diesel Turbo/Aftercooled
1
 
Fan
 
DriveAlign Premium OE Automatic Belt Tensioner
 

Freightliner FLD120



12.7L L6 Diesel Turbo/Aftercooled

Fan DriveAlign Premium OE Automatic Belt Tensioner

1 Per Vehicle

2007

 

2006

 

2005

 

2007

 

2006

 

2005

 
Freightliner FLD120

14L L6 Diesel Turbo/Aftercooled
1
 
Fan
 
DriveAlign Premium OE Automatic Belt Tensioner
 

Freightliner FLD120



14L L6 Diesel Turbo/Aftercooled

Fan DriveAlign Premium OE Automatic Belt Tensioner

1 Per Vehicle

2009

 

2008

 

2007

 

2006

 

2005

 

2009

 

2008

 

2007

 

2006

 

2005

 
Freightliner FLD120SD

14L L6 Diesel Turbo/Aftercooled
1
 
Fan
 
DriveAlign Premium OE Automatic Belt Tensioner
 

Freightliner FLD120SD



14L L6 Diesel Turbo/Aftercooled

Fan DriveAlign Premium OE Automatic Belt Tensioner

1 Per Vehicle

2007

 

2006

 

2007

 

2006

 
Freightliner FLD120SD

12.7L L6 Diesel Turbo/Aftercooled
1
 
Fan
 
DriveAlign Premium OE Automatic Belt Tensioner
 

Freightliner FLD120SD



12.7L L6 Diesel Turbo/Aftercooled

Fan DriveAlign Premium OE Automatic Belt Tensioner

1 Per Vehicle

2009

 

2008

 

2007

 

2006

 

2005

 

2009

 

2008

 

2007

 

2006

 

2005

 
Freightliner FLD132

14L L6 Diesel Turbo/Aftercooled
1
 
Fan
 
DriveAlign Premium OE Automatic Belt Tensioner
 

Freightliner FLD132



14L L6 Diesel Turbo/Aftercooled

Fan DriveAlign Premium OE Automatic Belt Tensioner

1 Per Vehicle

2007

 

2006

 

2005

 

2007

 

2006

 

2005

 
Freightliner FLD132

12.7L L6 Diesel Turbo/Aftercooled
1
 
Fan
 
DriveAlign Premium OE Automatic Belt Tensioner
 

Freightliner FLD132



12.7L L6 Diesel Turbo/Aftercooled

Fan DriveAlign Premium OE Automatic Belt Tensioner

1 Per Vehicle

2010

 

2009

 

2008

 

2007

 

2006

 

2005

 

2004

 

2010

 

2009

 

2008

 

2007

 

2006

 

2005

 

2004

 
Sterling Truck A9500

14L L6 Diesel Turbo/Aftercooled
1
 
Fan
 
DriveAlign Premium OE Automatic Belt Tensioner
 

Sterling Truck A9500



14L L6 Diesel Turbo/Aftercooled

Fan DriveAlign Premium OE Automatic Belt Tensioner

1 Per Vehicle

2007

 

2006

 

2005

 

2004

 

2007

 

2006

 

2005

 

2004

 
Sterling Truck A9500

12.7L L6 Diesel Turbo/Aftercooled
1
 
Fan
 
DriveAlign Premium OE Automatic Belt Tensioner
 

Sterling Truck A9500



12.7L L6 Diesel Turbo/Aftercooled

Fan DriveAlign Premium OE Automatic Belt Tensioner

1 Per Vehicle

2007

 

2006

 

2005

 

2004

 

2007

 

2006

 

2005

 

2004

 
Sterling Truck AT9500

12.7L L6 Diesel Turbo/Aftercooled
1
 
Fan
 
DriveAlign Premium OE Automatic Belt Tensioner
 

Sterling Truck AT9500



12.7L L6 Diesel Turbo/Aftercooled

Fan DriveAlign Premium OE Automatic Belt Tensioner

1 Per Vehicle

2003

 

2002

 

2003

 

2002

 
Sterling Truck Condor

10.3L L6 Diesel Turbo
1
 
Air Conditioning
 
DriveAlign Premium OE Automatic Belt Tensioner
 

Sterling Truck Condor



10.3L L6 Diesel Turbo

Air Conditioning DriveAlign Premium OE Automatic Belt Tensioner

1 Per Vehicle

2009

 

2009

 
Sterling Truck L9500

14L L6 Diesel Turbo/Aftercooled
1
 
Fan
 
DriveAlign Premium OE Automatic Belt Tensioner
 

Sterling Truck L9500



14L L6 Diesel Turbo/Aftercooled

Fan DriveAlign Premium OE Automatic Belt Tensioner

1 Per Vehicle

2007

 

2006

 

2005

 

2004

 

2007

 

2006

 

2005

 

2004

 
Sterling Truck L9500

12.7L L6 Diesel Turbo/Aftercooled
1
 
Fan
 
DriveAlign Premium OE Automatic Belt Tensioner
 

Sterling Truck L9500



12.7L L6 Diesel Turbo/Aftercooled

Fan DriveAlign Premium OE Automatic Belt Tensioner

1 Per Vehicle

2008

 

2008

 
Sterling Truck LT9500

14L L6 Diesel Turbo/Aftercooled
1
 
Fan
 
DriveAlign Premium OE Automatic Belt Tensioner
 

Sterling Truck LT9500



14L L6 Diesel Turbo/Aftercooled

Fan DriveAlign Premium OE Automatic Belt Tensioner

1 Per Vehicle

2007

 

2006

 

2005

 

2004

 

2007

 

2006

 

2005

 

2004

 
Sterling Truck LT9500

12.7L L6 Diesel Turbo/Aftercooled
1
 
Fan
 
DriveAlign Premium OE Automatic Belt Tensioner
 

Sterling Truck LT9500



12.7L L6 Diesel Turbo/Aftercooled

Fan DriveAlign Premium OE Automatic Belt Tensioner

1 Per Vehicle

2006

 

2006

 
Sterling Truck LT9500

14L L6 Diesel Turbo/Aftercooled
1
 
Fan
 
DriveAlign Premium OE Automatic Belt Tensioner
 

Sterling Truck LT9500



14L L6 Diesel Turbo/Aftercooled

Fan DriveAlign Premium OE Automatic Belt Tensioner

1 Per Vehicle

2009

 

2008

 

2007

 

2006

 

2005

 

2004

 

2003

 

2009

 

2008

 

2007

 

2006

 

2005

 

2004

 

2003

 
Western Star 4900EX

14L L6 Diesel Turbo/Aftercooled
1
 
Fan
 
DriveAlign Premium OE Automatic Belt Tensioner
 

Western Star 4900EX



14L L6 Diesel Turbo/Aftercooled

Fan DriveAlign Premium OE Automatic Belt Tensioner

1 Per Vehicle

2006

 

2005

 

2004

 

2003

 

2006

 

2005

 

2004

 

2003

 
Western Star 4900EX

12.7L L6 Diesel Turbo/Aftercooled
1
 
Fan
 
DriveAlign Premium OE Automatic Belt Tensioner
 

Western Star 4900EX



12.7L L6 Diesel Turbo/Aftercooled

Fan DriveAlign Premium OE Automatic Belt Tensioner

1 Per Vehicle

2011

 

2011

 
Western Star 4900FA

12.7L L6 Diesel Turbo/Aftercooled
1
 
Fan
 
DriveAlign Premium OE Automatic Belt Tensioner
 

Western Star 4900FA



12.7L L6 Diesel Turbo/Aftercooled

Fan DriveAlign Premium OE Automatic Belt Tensioner

1 Per Vehicle

2011

 

2010

 

2009

 

2008

 

2007

 

2006

 

2005

 

2004

 

2003

 

2011

 

2010

 

2009

 

2008

 

2007

 

2006

 

2005

 

2004

 

2003

 
Western Star 4900FA

14L L6 Diesel Turbo/Aftercooled
1
 
Fan
 
DriveAlign Premium OE Automatic Belt Tensioner
 

Western Star 4900FA



14L L6 Diesel Turbo/Aftercooled

Fan DriveAlign Premium OE Automatic Belt Tensioner

1 Per Vehicle

2007

 

2006

 

2005

 

2004

 

2003

 

2007

 

2006

 

2005

 

2004

 

2003

 
Western Star 4900FA

12.7L L6 Diesel Turbo/Aftercooled
1
 
Fan
 
DriveAlign Premium OE Automatic Belt Tensioner
 

Western Star 4900FA



12.7L L6 Diesel Turbo/Aftercooled

Fan DriveAlign Premium OE Automatic Belt Tensioner

1 Per Vehicle

2018

 

2017

 

2016

 

2015

 

2014

 

2013

 

2012

 

2011

 

2010

 

2009

 

2008

 

2007

 

2006

 

2005

 

2004

 

2003

 

2018

 

2017

 

2016

 

2015

 

2014

 

2013

 

2012

 

2011

 

2010

 

2009

 

2008

 

2007

 

2006

 

2005

 

2004

 

2003

 
Western Star 4900SA

14L L6 Diesel Turbo/Aftercooled
1
 
Fan
 
DriveAlign Premium OE Automatic Belt Tensioner
 

Western Star 4900SA



14L L6 Diesel Turbo/Aftercooled

Fan DriveAlign Premium OE Automatic Belt Tensioner

1 Per Vehicle

2007

 

2006

 

2005

 

2004

 

2003

 

2007

 

2006

 

2005

 

2004

 

2003

 
Western Star 4900SA

12.7L L6 Diesel Turbo/Aftercooled
1
 
Fan
 
DriveAlign Premium OE Automatic Belt Tensioner
 

Western Star 4900SA



12.7L L6 Diesel Turbo/Aftercooled

Fan DriveAlign Premium OE Automatic Belt Tensioner

1 Per Vehicle

2016

 

2016

 
Western Star 6900XD

14L L6 Diesel Turbo/Aftercooled
1
 
Fan
 
DriveAlign Premium OE Automatic Belt Tensioner
 

Western Star 6900XD



14L L6 Diesel Turbo/Aftercooled

Fan DriveAlign Premium OE Automatic Belt Tensioner

1 Per Vehicle

2014

 

2013

 

2014

 

2013

 
Western Star 6900XD

14L L6 Diesel Turbo/Aftercooled
1
 
Fan
 
DriveAlign Premium OE Automatic Belt Tensioner
 

Western Star 6900XD



14L L6 Diesel Turbo/Aftercooled

Fan DriveAlign Premium OE Automatic Belt Tensioner

1 Per Vehicle

2010

 

2009

 

2010

 

2009

 
Western Star 6900XD

14L L6 Diesel Turbo/Aftercooled
1
 
Fan
 
DriveAlign Premium OE Automatic Belt Tensioner
 

Western Star 6900XD



14L L6 Diesel Turbo/Aftercooled

Fan DriveAlign Premium OE Automatic Belt Tensioner

1 Per Vehicle

2007

 

2006

 

2005

 

2007

 

2006

 

2005

 
Western Star 6900XD

14L L6 Diesel Turbo/Aftercooled
1
 
Fan
 
DriveAlign Premium OE Automatic Belt Tensioner
 

Western Star 6900XD



14L L6 Diesel Turbo/Aftercooled

Fan DriveAlign Premium OE Automatic Belt Tensioner

1 Per Vehicle

2005

 

2005

 
Western Star 6900XD

12.7L L6 Diesel Turbo/Aftercooled
1
 
Fan
 
DriveAlign Premium OE Automatic Belt Tensioner
 

Western Star 6900XD



12.7L L6 Diesel Turbo/Aftercooled

Fan DriveAlign Premium OE Automatic Belt Tensioner

1 Per Vehicle

2003

 

2003

 
Western Star 6900XD

12.7L L6 Diesel Turbo/Aftercooled
1
 
Fan
 
DriveAlign Premium OE Automatic Belt Tensioner
 

Western Star 6900XD



12.7L L6 Diesel Turbo/Aftercooled

Fan DriveAlign Premium OE Automatic Belt Tensioner

1 Per Vehicle


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