Freightliner FL50 Belt Tensioner Assemblies

Your Freightliner FL50 will be happy to know that the search for the right Belt Tensioner Assemblies you’ve been looking for is over! Advance Auto Parts has 17 different Belt Tensioner Assemblies for your vehicle, ready for shipping or in-store pick up. The best part is, our Freightliner FL50 Belt Tensioner Assemblies start from as little as $114.99.

When it comes to your Freightliner FL50, you want parts and products from only trusted brands. Here at Advance Auto Parts, we work with only top reliable Belt Tensioner Assemblies brands so you can shop with complete confidence. Some of our top Belt Tensioner Assemblies brands are Dayco and Litens. We’re sure you will get the right product to keep that FL50 running for a long time.

Shop online, find the best price on the right product, and have it shipped right to your door. If you prefer to shop in person for the right Belt Tensioner Assemblies for your FL50, visit one of our local Advance Auto Parts locations and you’ll be back on the road in no time!

Compare 25 Freightliner Belt Tensioner Assemblies

Litens – Serpentine Belt Tensioner: 1 Piece (Part No.999366A)

Serpentine Belt Tensioner: 1 Piece

from

$92.99
This Litens supplied tensioner is manufactured to original equipment specifications. Heavy duty thermoplastic pulley construction ensures long life and trouble-free performance. This tensioner meets or exceeds all original equipment fit, form, and performance characteristics. Litens is the world’s largest supplier of original equipment (O.E.) power transmission products. At Litens, we design systems that are more efficient, resulting in tangible fuel economy/emissions benefits. Litens holds over 2000 patents and continues to respond to the ever-changing automotive industry by investing heavily in new technology, facilities, and people. 90% of our line is made of products coming from the OE manufacturer, which makes the Litens Tensioning Products portfolio the purest OE tensioning line in the North American aftermarket._

Product Features:
  • Heavy duty thermoplastic pulley construction.
  • OE-spec sealed ball bearings with synthetic grease and double lip seals for long life
  • Installation instructions included
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Litens – Serpentine Belt Tensioner: 1 Piece (Part No.999410A)

Serpentine Belt Tensioner: 1 Piece

from

$131.99
This Litens supplied tensioner is manufactured to original equipment specifications. Heavy duty thermoplastic pulley construction ensures long life and trouble-free performance. This tensioner meets or exceeds all original equipment fit, form, and performance characteristics. Litens is the world’s largest supplier of original equipment (O.E.) power transmission products. At Litens, we design systems that are more efficient, resulting in tangible fuel economy/emissions benefits. Litens holds over 2000 patents and continues to respond to the ever-changing automotive industry by investing heavily in new technology, facilities, and people. 90% of our line is made of products coming from the OE manufacturer, which makes the Litens Tensioning Products portfolio the purest OE tensioning line in the North American aftermarket._

Product Features:
  • Heavy duty thermoplastic pulley construction.
  • OE-spec sealed ball bearings with synthetic grease and double lip seals for long life
  • Install pin included for ease of installation
  • Installation instructions included
See More

Dayco No Slack Gold Label – Serpentine Belt Tensioner; 1 Piece, HD, Engineered To Handle Higher Torque (Part No.89451)

Serpentine Belt Tensioner; 1 Piece, HD, Engineered To Handle Higher Torque

from

$92.99
For heavy duty diesel engine accessory drive applications, Dayco’s HD automatic belt tensioner is designed to handle higher torque and power pulses. The heavy-duty cast aluminum body and pulley arms translate into extra strength and durability and the patented flat spring design prevents fluctuations to the tensioner body as its footprint doesn’t change when it’s under tension. This reduces the risk of belt noise and also helps avoid separation of the housing a key failure seen from competitive products. Dayco automatic belt tensioner H.D. also includes rugged pulleys with dual lifetime lubricated bearings to deliver long lasting, dependable service. Feature highly damped designs using a wave spring and a metal ring with a bonded polymeric surface that acts as a radial shock absorber for the tensioner arm while reducing contamination.

Product Features:
  • Designed to prevent fluctuations to the tensioner body for longer service life.
  • Reduces the risk of noise and helps avoid housing separation
  • Includes pulleys with lubricated bearings for longer lasting performance
  • Heavy-duty cast aluminum body and pulley arms translate into extra strength and durability
See More

Litens – Serpentine Belt Tensioner: 1 Piece (Part No.950155A)

Serpentine Belt Tensioner: 1 Piece

from

$245.99
Litens Automotive is the original equipment (O.E.) supplier for this application. This genuine Litens replacement tensioner is also manufactured by Litens, the world’s largest supplier of original equipment power transmission products. This part is specifically designed for 3.0L Diesel applications. Heavy duty steel pulley construction ensures long life and trouble-free performance. This tensioner meets or exceeds all original equipment fit, form, and performance characteristics. For maximum performance and durability, always use genuine Litens components. Litens is the world’s largest supplier of original equipment (O.E.) power transmission products. At Litens, we design systems that are more efficient, resulting in tangible fuel economy/emissions benefits. Litens holds over 2000 patents and continues to respond to the ever-changing automotive industry by investing heavily in new technology, facilities, and people. 90% of our line is made of products coming from the OE manufacturer, which makes the Litens Tensioning Products portfolio the purest OE tensioning line in the North American aftermarket._

Product Features:
  • Heavy duty steel pulley construction.
  • OE-spec sealed ball bearings with synthetic grease and double lip seals for long life
  • Installation instructions included
See More

Dayco No Slack Gold Label – Serpentine Belt Tensioner; 1 Piece, HD, Engineered To Handle Higher Torque (Part No.89441)

Serpentine Belt Tensioner; 1 Piece, HD, Engineered To Handle Higher Torque

from

$114.99
For heavy duty diesel engine accessory drive applications, Dayco’s HD automatic belt tensioner is designed to handle higher torque and power pulses. The heavy-duty cast aluminum body and pulley arms translate into extra strength and durability and the patented flat spring design prevents fluctuations to the tensioner body as its footprint doesn’t change when it’s under tension. This reduces the risk of belt noise and also helps avoid separation of the housing a key failure seen from competitive products. Dayco automatic belt tensioner H.D. also includes rugged pulleys with dual lifetime lubricated bearings to deliver long lasting, dependable service. Feature highly damped designs using a wave spring and a metal ring with a bonded polymeric surface that acts as a radial shock absorber for the tensioner arm while reducing contamination.

Product Features:
  • Designed to prevent fluctuations to the tensioner body for longer service life.
  • Reduces the risk of noise and helps avoid housing separation
  • Includes pulleys with lubricated bearings for longer lasting performance
  • Heavy-duty cast aluminum body and pulley arms translate into extra strength and durability
See More

Dayco No Slack Gold Label – Serpentine Belt Tensioner; 1 Piece, HD, Engineered To Handle Higher Torque (Part No.89440)

Serpentine Belt Tensioner; 1 Piece, HD, Engineered To Handle Higher Torque

from

$179.99
For heavy duty diesel engine accessory drive applications, Dayco’s HD automatic belt tensioner is designed to handle higher torque and power pulses. The heavy-duty cast aluminum body and pulley arms translate into extra strength and durability and the patented flat spring design prevents fluctuations to the tensioner body as its footprint doesn’t change when it’s under tension. This reduces the risk of belt noise and also helps avoid separation of the housing a key failure seen from competitive products. Dayco automatic belt tensioner H.D. also includes rugged pulleys with dual lifetime lubricated bearings to deliver long lasting, dependable service. Feature highly damped designs using a wave spring and a metal ring with a bonded polymeric surface that acts as a radial shock absorber for the tensioner arm while reducing contamination.

Product Features:
  • Designed to prevent fluctuations to the tensioner body for longer service life.
  • Reduces the risk of noise and helps avoid housing separation
  • Includes pulleys with lubricated bearings for longer lasting performance
  • Heavy-duty cast aluminum body and pulley arms translate into extra strength and durability
See More

Litens – Serpentine Belt Tensioner: 1 Piece (Part No.950151A)

Serpentine Belt Tensioner: 1 Piece

from

$114.99
Litens Automotive is the original equipment (O.E.) supplier for this application. This genuine Litens replacement tensioner is also manufactured by Litens, the world’s largest supplier of original equipment power transmission products. This part is specifically designed for Dodge / Freightliner / Mercedes-Benz applications. Heavy duty thermoplastic pulley construction ensures long life and trouble-free performance. This tensioner meets or exceeds all original equipment fit, form, and performance characteristics. For maximum performance and durability, always use genuine Litens components. Litens is the world’s largest supplier of original equipment (O.E.) power transmission products. At Litens, we design systems that are more efficient, resulting in tangible fuel economy/emissions benefits. Litens holds over 2000 patents and continues to respond to the ever-changing automotive industry by investing heavily in new technology, facilities, and people. 90% of our line is made of products coming from the OE manufacturer, which makes the Litens Tensioning Products portfolio the purest OE tensioning line in the North American aftermarket._

Product Features:
  • Manufactured by the original equipment part supplier to ensure proper form, fit and performance
  • Internal “round spring” technology to provide constant belt tension and alignment throughout its service life.
  • Installation instructions included.
  • Heavy Duty Glass Reinforced Polymer Pulley for optimized dimensional control and running surface durability
  • Professional Mechanics will change this tensioner in approx. 20 minutes to 1 hour.
  • Due to the fact that belts and tensioners have similar Original Equipment “design life targets”, it is often a best practice to replace the belt tensioner when replacing a worn or broken belt. Belt removal is required to change the tensioner. Therefore, d
See More

Dayco No Slack Gold Label – Serpentine Belt Tensioner; 1 Piece, HD, Engineered To Handle Higher Torque (Part No.89448)

Serpentine Belt Tensioner; 1 Piece, HD, Engineered To Handle Higher Torque

from

$183.99
For heavy duty diesel engine accessory drive applications, Dayco’s HD automatic belt tensioner is designed to handle higher torque and power pulses. The heavy-duty cast aluminum body and pulley arms translate into extra strength and durability and the patented flat spring design prevents fluctuations to the tensioner body as its footprint doesn’t change when it’s under tension. This reduces the risk of belt noise and also helps avoid separation of the housing a key failure seen from competitive products. Dayco automatic belt tensioner H.D. also includes rugged pulleys with dual lifetime lubricated bearings to deliver long lasting, dependable service. Feature highly damped designs using a wave spring and a metal ring with a bonded polymeric surface that acts as a radial shock absorber for the tensioner arm while reducing contamination.

Product Features:
  • Designed to prevent fluctuations to the tensioner body for longer service life.
  • Reduces the risk of noise and helps avoid housing separation
  • Includes pulleys with lubricated bearings for longer lasting performance
  • Heavy-duty cast aluminum body and pulley arms translate into extra strength and durability
See More

Dayco No Slack Gold Label – Serpentine Belt Tensioner; 1 Piece, HD, Engineered To Handle Higher Torque (Part No.89479)

Serpentine Belt Tensioner; 1 Piece, HD, Engineered To Handle Higher Torque

from

$148.99
For heavy duty diesel engine accessory drive applications, Dayco’s HD automatic belt tensioner is designed to handle higher torque and power pulses. The heavy-duty cast aluminum body and pulley arms translate into extra strength and durability and the patented flat spring design prevents fluctuations to the tensioner body as its footprint doesn’t change when it’s under tension. This reduces the risk of belt noise and also helps avoid separation of the housing a key failure seen from competitive products. Dayco automatic belt tensioner H.D. also includes rugged pulleys with dual lifetime lubricated bearings to deliver long lasting, dependable service. Feature highly damped designs using a wave spring and a metal ring with a bonded polymeric surface that acts as a radial shock absorber for the tensioner arm while reducing contamination.

Product Features:
  • Designed to prevent fluctuations to the tensioner body for longer service life.
  • Reduces the risk of noise and helps avoid housing separation
  • Includes pulleys with lubricated bearings for longer lasting performance
  • Heavy-duty cast aluminum body and pulley arms translate into extra strength and durability
See More

Dayco No Slack Gold Label – Serpentine Belt Tensioner; 1 Piece, HD, Engineered To Handle Higher Torque (Part No.89474)

Serpentine Belt Tensioner; 1 Piece, HD, Engineered To Handle Higher Torque

from

$88.99
For heavy duty diesel engine accessory drive applications, Dayco’s HD automatic belt tensioner is designed to handle higher torque and power pulses. The heavy-duty cast aluminum body and pulley arms translate into extra strength and durability and the patented flat spring design prevents fluctuations to the tensioner body as its footprint doesn’t change when it’s under tension. This reduces the risk of belt noise and also helps avoid separation of the housing a key failure seen from competitive products. Dayco automatic belt tensioner H.D. also includes rugged pulleys with dual lifetime lubricated bearings to deliver long lasting, dependable service. Feature highly damped designs using a wave spring and a metal ring with a bonded polymeric surface that acts as a radial shock absorber for the tensioner arm while reducing contamination.

Product Features:
  • Designed to prevent fluctuations to the tensioner body for longer service life.
  • Reduces the risk of noise and helps avoid housing separation
  • Includes pulleys with lubricated bearings for longer lasting performance
  • Heavy-duty cast aluminum body and pulley arms translate into extra strength and durability
See More

Dayco No Slack Gold Label – Serpentine Belt Tensioner; 1 Piece, HD, Built To Outperform And Outlast OE Parts (Part No.89490)

Serpentine Belt Tensioner; 1 Piece, HD, Built To Outperform And Outlast OE Parts

from

$128.99
For heavy-duty diesel engine accessory drive applications, Dayco’s HD automatic belt tensioner is designed to handle higher torque and power pulses. The heavy-duty cast aluminum body and pulley arms translate into extra strength and durability and the pat

Product Features:
  • Designed to prevent fluctuations to the tensioner body for longer service life
  • Reduces the risk of noise and helps avoid housing separation
  • Includes pulleys with lubricated bearings for longer lasting performance
  • Rust resistant construction
See More

Litens – Serpentine Belt Tensioner: 1 Piece (Part No.999837A)

Serpentine Belt Tensioner: 1 Piece

from

$131.99
This Litens belt tensioner is supplied by the original equipment (O.E.) tensioner supplier and meets all form, fit, and performance characteristics of the original equipment part . As with the original equipment part, this replacement tensioner is manufactured in the Czech Republic and meets all performance and life specifications of the O.E. part. This part was designed for the 2014-2016 Mercedes-Benz, Sprinter, 4-Cyl. 2.1 L Diesel, Tensioner Assy. The part features a premium chrome-silicon steel spring, internal damping, a 6203 ball bearing, a plastic pulley molded to exacting specifications, a lift-lug and pull pin feature for ease of installation. Litens is the world’s largest supplier of original equipment (O.E.) power transmission products. At Litens, we design systems that are more efficient, resulting in tangible fuel economy/emissions benefits. Litens holds over 2000 patents and continues to respond to the ever-changing automotive industry by investing heavily in new technology, facilities, and people. 90% of our line is made of products coming from the OE manufacturer, which makes the Litens Tensioning Products portfolio the purest OE tensioning line in the North American aftermarket._

Product Features:
  • Designed and engineered by the Original Equipment supplier of accessory drive tensioners and pulleys for this application.
  • Internal “round spring” technology to provide constant belt tension and alignment throughout its service life. The internal damping design provides quiet, smooth, system performance.
  • A plastic pulley specifically molded with tight radial run out for reduced noise and longer life
  • Due to the fact that belts and tensioners have similar Original Equipment “design life targets”, it is often a best practice to replace the belt tensioner when replacing a worn or broken belt. Belt removal is required to change the tensioner. Therefore, d
  • Installation instructions included
See More

Gates – FleetRunner½ Heavy-Duty Automatic Belt Drive Tensioner (Part No.38667)

FleetRunner½ Heavy-Duty Automatic Belt Drive Tensioner

from

$384.99
Product Features:
  • Optimized components engineered for maximum strength and durability
  • 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
  • Long-lasting steel pulleys with dust shields to protect internal bearings from contamination
  • Double row bearings carry more load and last up to 3X longer than two individual bearings
  • Chrome-silicone round torsion spring for less +ex-fatigue than +at-spring designs
  • Patented damping mechanism provides maximum stability, reducing vibration and increasing the life of the belt, tensioner and other accessory drive components
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Dayco No Slack Gold Label – Serpentine Belt Tensioner; 1 Piece, HD, Built To Outperform And Outlast OE Parts (Part No.89488)

Serpentine Belt Tensioner; 1 Piece, HD, Built To Outperform And Outlast OE Parts

from

$146.99
For heavy-duty diesel engine accessory drive applications, Dayco’s HD automatic belt tensioner is designed to handle higher torque and power pulses. The heavy-duty cast aluminum body and pulley arms translate into extra strength and durability and the pat

Product Features:
  • Designed to prevent fluctuations to the tensioner body for longer service life
  • Reduces the risk of noise and helps avoid housing separation
  • Includes pulleys with lubricated bearings for longer lasting performance
  • Includes installation instructions
See More

Dayco No Slack Gold Label – Serpentine Belt Tensioner; 1 Piece, HD, Engineered To Handle Higher Torque (Part No.89444)

Serpentine Belt Tensioner; 1 Piece, HD, Engineered To Handle Higher Torque

from

$103.99
For heavy duty diesel engine accessory drive applications, Dayco’s HD automatic belt tensioner is designed to handle higher torque and power pulses. The heavy-duty cast aluminum body and pulley arms translate into extra strength and durability and the patented flat spring design prevents fluctuations to the tensioner body as its footprint doesn’t change when it’s under tension. This reduces the risk of belt noise and also helps avoid separation of the housing a key failure seen from competitive products. Dayco automatic belt tensioner H.D. also includes rugged pulleys with dual lifetime lubricated bearings to deliver long lasting, dependable service. Feature highly damped designs using a wave spring and a metal ring with a bonded polymeric surface that acts as a radial shock absorber for the tensioner arm while reducing contamination.

Product Features:
  • Designed to prevent fluctuations to the tensioner body for longer service life.
  • Reduces the risk of noise and helps avoid housing separation
  • Includes pulleys with lubricated bearings for longer lasting performance
  • Heavy-duty cast aluminum body and pulley arms translate into extra strength and durability
See More

Litens – Serpentine Belt Tensioner: 1 Piece (Part No.910575A)

Serpentine Belt Tensioner: 1 Piece

from

$113.99
This Heavy Duty Truck and Bus tensioner is designed and engineered by one of the world’s largest supplier of original equipment (O.E.) belt tensioners in the world. The Litens replacement part meets all form, fit, and performance characteristics of the original equipment part (with the exception of not having the car manufacturer’s logo or part number applied to the part). This part is manufactured to meet or exceed the performance and life specifications of the O.E. part. The part features a premium chrome-silicon steel spring, internal damping, a “lift-lug” feature for ease of installation, Tandem 6303 ball bearings, a molded locator pin for precise installation, and a forged steel pulley. Litens is the world’s largest supplier of original equipment (O.E.) power transmission products. At Litens, we design systems that are more efficient, resulting in tangible fuel economy/emissions benefits. Litens holds over 2000 patents and continues to respond to the ever-changing automotive industry by investing heavily in new technology, facilities, and people. 90% of our line is made of products coming from the OE manufacturer, which makes the Litens Tensioning Products portfolio the purest OE tensioning line in the North American aftermarket._

Product Features:
  • Designed and engineered by one of the world’s largest Original Equipment suppliers of accessory drive tensioners and pulleys
  • Internal “round spring” technology to provide constant belt tension and alignment throughout its service life. The internal damping design provides quiet, smooth, system performance.
  • Installation instructions included.
  • Heavy Duty Electro-deposited coated (e-coat) Steel Pulley for superior corrosion resistance.
  • Professional Mechanics will change this tensioner in approx. 1/2 hour
  • Due to the fact that belts and tensioners have similar Original Equipment “design life targets”, it is often a best practice to replace the belt tensioner when replacing a worn or broken belt. Belt removal is required to change the tensioner. Therefore, d
See More

Litens – Serpentine Belt Tensioner: 1 Piece (Part No.910559A)

Serpentine Belt Tensioner: 1 Piece

from

$254.99
This Heavy Duty Truck and Bus tensioner is designed and engineered by one of the world’s largest supplier of original equipment (O.E.) belt tensioners in the world. The Litens replacement part meets all form, fit, and performance characteristics of the original equipment part (with the exception of not having the car manufacturer’s logo or part number applied to the part). This part is manufactured to meet or exceed the performance and life specifications of the O.E. part. The part features a premium chrome-silicon steel spring, internal damping, a “lift-lug” feature for ease of installation, Tandem 6303 ball bearings, a molded locator pin for precise installation, and a forged steel pulley. Litens is the world’s largest supplier of original equipment (O.E.) power transmission products. At Litens, we design systems that are more efficient, resulting in tangible fuel economy/emissions benefits. Litens holds over 2000 patents and continues to respond to the ever-changing automotive industry by investing heavily in new technology, facilities, and people. 90% of our line is made of products coming from the OE manufacturer, which makes the Litens Tensioning Products portfolio the purest OE tensioning line in the North American aftermarket._

Product Features:
  • Designed and engineered by one of the world’s largest Original Equipment suppliers of accessory drive tensioners and pulleys
  • Internal “round spring” technology to provide constant belt tension and alignment throughout its service life. The internal damping design provides quiet, smooth, system performance.
  • Installation instructions included.
  • Heavy Duty Electro-deposited coated (e-coat) Steel Pulley for superior corrosion resistance.
  • Professional Mechanics will change this tensioner in approx. 1/2 hour
  • Due to the fact that belts and tensioners have similar Original Equipment “design life targets”, it is often a best practice to replace the belt tensioner when replacing a worn or broken belt. Belt removal is required to change the tensioner. Therefore, d
See More

Litens – Serpentine Belt Tensioner: 1 Piece (Part No.910074A)

Serpentine Belt Tensioner: 1 Piece

from

$239.99
This Heavy Duty Truck and Bus tensioner is designed and engineered by Litens – the world’s largest supplier of original equipment (O.E.) belt tensioners in the world. The Litens replacement part meets all form, fit, and performance characteristics of the original equipment part (with the exception of not having the car manufacturer’s logo or part number applied to the part). This part is manufactured to meet or exceed the performance and life specifications of the O.E. part. The part features a premium chrome-silicon steel spring, internal damping, a “lift-lug” feature for ease of installation, Tandem 6303 ball bearings, a molded locator pin for precise installation, and a forged steel pulley. Litens is the world’s largest supplier of original equipment (O.E.) power transmission products. At Litens, we design systems that are more efficient, resulting in tangible fuel economy/emissions benefits. Litens holds over 2000 patents and continues to respond to the ever-changing automotive industry by investing heavily in new technology, facilities, and people. 90% of our line is made of products coming from the OE manufacturer, which makes the Litens Tensioning Products portfolio the purest OE tensioning line in the North American aftermarket._

Product Features:
  • Designed and engineered by the world’s largest Original Equipment supplier of accessory drive tensioners and pulleys
  • Internal “round spring” technology to provide constant belt tension and alignment throughout its service life. The internal damping design provides quiet, smooth, system performance.
  • Installation instructions included.
  • Heavy Duty Electro-deposited coated (e-coat) Steel Pulley for superior corrosion resistance.
  • Professional Mechanics will change this tensioner in approx. 1/2 hour
  • Due to the fact that belts and tensioners have similar Original Equipment “design life targets”, it is often a best practice to replace the belt tensioner when replacing a worn or broken belt. Belt removal is required to change the tensioner. Therefore, d
See More

Litens – Serpentine Belt Tensioner: 1 Piece (Part No.910568A)

Serpentine Belt Tensioner: 1 Piece

from

$229.99
This Heavy Duty Truck and Bus tensioner is designed and engineered by one of the world’s largest supplier of original equipment (O.E.) belt tensioners in the world. The Litens replacement part meets all form, fit, and performance characteristics of the original equipment part (with the exception of not having the car manufacturer’s logo or part number applied to the part). This part is manufactured to meet or exceed the performance and life specifications of the O.E. part. The part features a premium chrome-silicon steel spring, internal damping, a “lift-lug” feature for ease of installation, Tandem 6303 ball bearings, a molded locator pin for precise installation, and a forged steel pulley. Litens is the world’s largest supplier of original equipment (O.E.) power transmission products. At Litens, we design systems that are more efficient, resulting in tangible fuel economy/emissions benefits. Litens holds over 2000 patents and continues to respond to the ever-changing automotive industry by investing heavily in new technology, facilities, and people. 90% of our line is made of products coming from the OE manufacturer, which makes the Litens Tensioning Products portfolio the purest OE tensioning line in the North American aftermarket._

Product Features:
  • Designed and engineered by one of the world’s largest Original Equipment suppliers of accessory drive tensioners and pulleys
  • Internal “round spring” technology to provide constant belt tension and alignment throughout its service life. The internal damping design provides quiet, smooth, system performance.
  • Installation instructions included.
  • Heavy Duty Electro-deposited coated (e-coat) Steel Pulley for superior corrosion resistance.
  • Professional Mechanics will change this tensioner in approx. 1/2 hour
  • Due to the fact that belts and tensioners have similar Original Equipment “design life targets”, it is often a best practice to replace the belt tensioner when replacing a worn or broken belt. Belt removal is required to change the tensioner. Therefore, d
See More

Litens – Serpentine Belt Tensioner: 1 Piece (Part No.910003A)

Serpentine Belt Tensioner: 1 Piece

from

$206.99
This Heavy Duty Truck and Bus tensioner is designed and engineered Litens, the world’s largest supplier of original equipment (O.E.) belt tensioners in the world. The Litens replacement part meets all form, fit, and performance characteristics of the original equipment part (with the exception of not having the car manufacturer’s logo or part number applied to the part). This part is manufactured to meet or exceed the performance and life specifications of the O.E. part. The part features a premium chrome-silicon steel spring, internal damping, a “lift-lug” feature for ease of installation, Tandem 6303 ball bearings, a molded locator pin for precise installation, and a forged steel pulley. Fits a large variety of Makes, Models, and Engines. Litens is the world’s largest supplier of original equipment (O.E.) power transmission products. At Litens, we design systems that are more efficient, resulting in tangible fuel economy/emissions benefits. Litens holds over 2000 patents and continues to respond to the ever-changing automotive industry by investing heavily in new technology, facilities, and people. 90% of our line is made of products coming from the OE manufacturer, which makes the Litens Tensioning Products portfolio the purest OE tensioning line in the North American aftermarket._

Product Features:
  • Designed and engineered by the world’s largest Original Equipment supplier of accessory drive tensioners and pulleys
  • Internal “round spring” technology to provide constant belt tension and alignment throughout its service life. The internal damping design provides quiet, smooth, system performance.
  • Installation instructions included.
  • Heavy Duty Electro-deposited coated (e-coat) Steel Pulley for superior corrosion resistance
  • Professional Mechanics will change this tensioner in approx. 1/2 hour
  • Due to the fact that belts and tensioners have similar Original Equipment “design life targets”, it is often a best practice to replace the belt tensioner when replacing a worn or broken belt. Belt removal is required to change the tensioner. Therefore, d
See More

Dayco No Slack Gold Label – Serpentine Belt Tensioner; 1 Piece, HD, Engineered To Handle Higher Torque (Part No.89480)

Serpentine Belt Tensioner; 1 Piece, HD, Engineered To Handle Higher Torque

from

$195.99
For heavy duty diesel engine accessory drive applications, Dayco’s HD automatic belt tensioner is designed to handle higher torque and power pulses. The heavy-duty cast aluminum body and pulley arms translate into extra strength and durability and the patented flat spring design prevents fluctuations to the tensioner body as its footprint doesn’t change when it’s under tension. This reduces the risk of belt noise and also helps avoid separation of the housing a key failure seen from competitive products. Dayco automatic belt tensioner H.D. also includes rugged pulleys with dual lifetime lubricated bearings to deliver long lasting, dependable service. Feature highly damped designs using a wave spring and a metal ring with a bonded polymeric surface that acts as a radial shock absorber for the tensioner arm while reducing contamination.

Product Features:
  • Designed to prevent fluctuations to the tensioner body for longer service life.
  • Reduces the risk of noise and helps avoid housing separation
  • Includes pulleys with lubricated bearings for longer lasting performance
  • Heavy-duty cast aluminum body and pulley arms translate into extra strength and durability
See More

Litens – Serpentine Belt Tensioner: 1 Piece (Part No.910007A)

Serpentine Belt Tensioner: 1 Piece

from

$171.99
This Heavy Duty Truck and Bus tensioner is designed and engineered by Litens – the world’s largest supplier of original equipment (O.E.) belt tensioners in the world. The Litens replacement part meets all form, fit, and performance characteristics of the original equipment part (with the exception of not having the car manufacturer’s logo or part number applied to the part). This part is manufactured to meet or exceed the performance and life specifications of the O.E. part. The part features a premium chrome-silicon steel spring, internal damping, a “lift-lug” feature for ease of installation, Tandem 6303 ball bearings, a molded locator pin for precise installation, and a forged steel pulley. Specifically designed for a wide variety of Trucks and Buses with a Cummins ISB (5.9L) engine. Litens is the world’s largest supplier of original equipment (O.E.) power transmission products. At Litens, we design systems that are more efficient, resulting in tangible fuel economy/emissions benefits. Litens holds over 2000 patents and continues to respond to the ever-changing automotive industry by investing heavily in new technology, facilities, and people. 90% of our line is made of products coming from the OE manufacturer, which makes the Litens Tensioning Products portfolio the purest OE tensioning line in the North American aftermarket._

Product Features:
  • Designed and engineered by the world’s largest Original Equipment supplier of accessory drive tensioners and pulleys
  • Internal “round spring” technology to provide constant belt tension and alignment throughout its service life. The internal damping design provides quiet, smooth, system performance.
  • Installation instructions included.
  • Heavy Duty Electro-deposited coated (e-coat) Steel Pulley for superior corrosion resistance.
  • Professional Mechanics will change this tensioner in approx. 1/2 hour
  • Due to the fact that belts and tensioners have similar Original Equipment “design life targets”, it is often a best practice to replace the belt tensioner when replacing a worn or broken belt. Belt removal is required to change the tensioner. Therefore, d
See More

Dayco No Slack Gold Label – Serpentine Belt Tensioner; 1 Piece, HD, Engineered To Handle Higher Torque (Part No.89447)

Serpentine Belt Tensioner; 1 Piece, HD, Engineered To Handle Higher Torque

from

$171.99
For heavy duty diesel engine accessory drive applications, Dayco’s HD automatic belt tensioner is designed to handle higher torque and power pulses. The heavy-duty cast aluminum body and pulley arms translate into extra strength and durability and the patented flat spring design prevents fluctuations to the tensioner body as its footprint doesn’t change when it’s under tension. This reduces the risk of belt noise and also helps avoid separation of the housing a key failure seen from competitive products. Dayco automatic belt tensioner H.D. also includes rugged pulleys with dual lifetime lubricated bearings to deliver long lasting, dependable service. Feature highly damped designs using a wave spring and a metal ring with a bonded polymeric surface that acts as a radial shock absorber for the tensioner arm while reducing contamination.

Product Features:
  • Designed to prevent fluctuations to the tensioner body for longer service life.
  • Reduces the risk of noise and helps avoid housing separation
  • Includes pulleys with lubricated bearings for longer lasting performance
  • Heavy-duty cast aluminum body and pulley arms translate into extra strength and durability
See More

Dayco No Slack Gold Label – Serpentine Belt Tensioner; 1 Piece, HD, Engineered To Handle Higher Torque (Part No.89422)

Serpentine Belt Tensioner; 1 Piece, HD, Engineered To Handle Higher Torque

from

$127.99
For heavy-duty diesel engine accessory drive applications, Dayco’s HD automatic belt tensioner is designed to handle higher torque and power pulses. The heavy-duty cast aluminum body and pulley arms translate into extra strength and durability and the pat

Product Features:
  • Designed to prevent fluctuations to the tensioner body for longer service life
  • Reduces the risk of noise and helps avoid housing separation
  • Includes pulleys with lubricated bearings for longer lasting performance
  • Heavy-duty cast aluminum body and pulley arms translate into extra strength and durability
See More

Dayco No Slack Gold Label – Serpentine Belt Tensioner; 1 Piece, HD, Engineered To Handle Higher Torque (Part No.89478)

Serpentine Belt Tensioner; 1 Piece, HD, Engineered To Handle Higher Torque

from

$141.99
For heavy duty diesel engine accessory drive applications, Dayco’s HD automatic belt tensioner is designed to handle higher torque and power pulses. The heavy-duty cast aluminum body and pulley arms translate into extra strength and durability and the patented flat spring design prevents fluctuations to the tensioner body as its footprint doesn’t change when it’s under tension. This reduces the risk of belt noise and also helps avoid separation of the housing a key failure seen from competitive products. Dayco automatic belt tensioner H.D. also includes rugged pulleys with dual lifetime lubricated bearings to deliver long lasting, dependable service. Feature highly damped designs using a wave spring and a metal ring with a bonded polymeric surface that acts as a radial shock absorber for the tensioner arm while reducing contamination.

Product Features:
  • Designed to prevent fluctuations to the tensioner body for longer service life.
  • Reduces the risk of noise and helps avoid housing separation
  • Includes pulleys with lubricated bearings for longer lasting performance
  • Heavy-duty cast aluminum body and pulley arms translate into extra strength and durability
See More

FAQs for Freightliner FL50 Belt Tensioner Assemblies

What are the most popular Belt Tensioner Assemblies for the Freightliner FL50?

With 3 brands you can trust, our most popular Belt Tensioner Assemblies for the Freightliner FL50 are:
Serpentine Belt Tensioner; 1 Piece, HD, Engineered To Handle Higher Torque
from $114.99
This product is not rated
Serpentine Belt Tensioner; 1 Piece, HD, Engineered To Handle Higher Torque
Belt Tensioner Assemblies
Serpentine Belt Tensioner; 1 Piece, HD, Engineered To Handle Higher Torque
from $148.99
This product is not rated
Serpentine Belt Tensioner; 1 Piece, HD, Engineered To Handle Higher Torque
Belt Tensioner Assemblies
Serpentine Belt Tensioner; 1 Piece, HD, Engineered To Handle Higher Torque
from $141.99
This product is not rated
Serpentine Belt Tensioner; 1 Piece, HD, Engineered To Handle Higher Torque
Belt Tensioner Assemblies