Thomas Belt Tensioners

Belt Tensioners for Your Thomas

Replacing your Thomas Belt Tensioners shouldn’t cost you an arm and a leg. That’s why we offer plenty of options for you to choose from, making it easy to find top rated Belt Tensioners brands at a fraction of the cost.
Please Select your Vehicle to See Exact Fit Parts

Essential Thomas Belt Tensioners

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

Dayco No Slack Gold Label Serpentine Belt Tensioner 1 Piece, HD, Engineered To Handle Higher Torque, 89441

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.
See More

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

Dayco No Slack Gold Label Serpentine Belt Tensioner 1 Piece, HD, Engineered To Handle Higher Torque, 89479

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.
See More

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

Dayco No Slack Gold Label Serpentine Belt Tensioner 1 Piece, HD, Built To Outperform And Outlast OE Parts, 89490

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 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.
See More

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

Dayco No Slack Gold Label Serpentine Belt Tensioner 1 Piece, HD, Engineered To Handle Higher Torque, 89444

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.
See More

Litens – Litens Accessory Drive Belt Tensioner – Original Equipment Quality, 910003A (Part No.910003A)

Litens Accessory Drive Belt Tensioner - Original Equipment Quality, 910003A

from

$222.99
“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.”
See More

Litens – Litens Accessory Drive Belt Tensioner – Original Equipment Quality, 910007A (Part No.910007A)

Litens Accessory Drive Belt Tensioner - Original Equipment Quality, 910007A

from

$184.99
“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.”
See More

Gates – Gates FleetRunner Heavy-Duty Automatic Belt Drive Tensioner, 38702 (Part No.38702)

Gates FleetRunner Heavy-Duty Automatic Belt Drive Tensioner, 38702

from

$179.99
Gates FleetRunner Heavy-Duty Automatic Belt Drive Tensioner, 38702.
See More

Dayco No Slack Gold Label – Dayco No Slack Gold Label Serpentine Belt Tensioner 1 Piece, HD, Engineered To Handle Higher Torque, 89450 (Part No.89450)

Dayco No Slack Gold Label Serpentine Belt Tensioner 1 Piece, HD, Engineered To Handle Higher Torque, 89450

from

$119.99
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.
See More

Gates – Gates FleetRunner Heavy-Duty Automatic Belt Drive Tensioner, 38511 (Part No.38511)

Gates FleetRunner Heavy-Duty Automatic Belt Drive Tensioner, 38511

from

$227.99
Gates is a global leader in Original Equipment (OE) System Design. With a full line of tensioners globally, you can count on Gates to supply premium quality DriveAlign Automatic Belt Tensioners you can depend on.
See More

Gates – Gates FleetRunner Heavy-Duty Automatic Belt Drive Tensioner, 38518 (Part No.38518)

Gates FleetRunner Heavy-Duty Automatic Belt Drive Tensioner, 38518

from

$207.99
Gates is a global leader in Original Equipment (OE) System Design. With a full line of tensioners globally, you can count on Gates to supply premium quality DriveAlign Automatic Belt Tensioners you can depend on.
See More

Dorman – Dorman Automatic Belt Tensioner, 419-375 (Part No.419-375)

Dorman Automatic Belt Tensioner, 419-375

from

$204.99
This accessory drive belt tensioner assembly is designed to match the fit of an original equipment assembly on specified vehicles. It is engineered to help ensure proper belt tension when an original belt is slipping, broken, or worn from fatigue.
See More

Gates – Gates FleetRunner Heavy-Duty Automatic Belt Drive Tensioner, 38517 (Part No.38517)

Gates FleetRunner Heavy-Duty Automatic Belt Drive Tensioner, 38517

from

$188.99
Gates is a global leader in Original Equipment (OE) System Design. With a full line of tensioners globally, you can count on Gates to supply premium quality DriveAlign Automatic Belt Tensioners you can depend on.
See More

Litens – Litens Accessory Drive Belt Tensioner – Original Equipment Quality, 910021A (Part No.910021A)

Litens Accessory Drive Belt Tensioner - Original Equipment Quality, 910021A

from

$184.99
“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/ISC/ISL engine. New mounting bolt included. 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.”
See More

Litens – Litens Accessory Drive Belt Tensioner – Original Equipment Quality, 910011A (Part No.910011A)

Litens Accessory Drive Belt Tensioner - Original Equipment Quality, 910011A

from

$159.99
“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 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.”
See More

Gates – Gates FleetRunner Heavy-Duty Automatic Belt Drive Tensioner, 38627 (Part No.38627)

Gates FleetRunner Heavy-Duty Automatic Belt Drive Tensioner, 38627

from

$153.99
Gates is a global leader in Original Equipment (OE) System Design. With a full line of tensioners globally, you can count on Gates to supply premium quality DriveAlign Automatic Belt Tensioners you can depend on.
See More

Dayco No Slack Gold Label – Dayco No Slack Gold Label Serpentine Belt Tensioner 1 Piece, HD, Engineered To Handle Higher Torque, 89481 (Part No.89481)

Dayco No Slack Gold Label Serpentine Belt Tensioner 1 Piece, HD, Engineered To Handle Higher Torque, 89481

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 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.
See More

Litens – Litens Accessory Drive Belt Tensioner – Original Equipment Quality, 910567A (Part No.910567A)

Litens Accessory Drive Belt Tensioner - Original Equipment Quality, 910567A

from

$146.99
“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.”
See More

Dayco No Slack Gold Label – Dayco No Slack Gold Label Serpentine Belt Tensioner 1 Piece, HD, Engineered To Handle Higher Torque, 89482 (Part No.89482)

Dayco No Slack Gold Label Serpentine Belt Tensioner 1 Piece, HD, Engineered To Handle Higher Torque, 89482

from

$142.99
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.
See More

Litens – Litens Accessory Drive Belt Tensioner – Original Equipment Quality, 910588A (Part No.910588A)

Litens Accessory Drive Belt Tensioner - Original Equipment Quality, 910588A

from

$139.99
This Litens supplied tensioner is manufactured to original equipment specifications. 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.
See More

Dayco No Slack Gold Label – Dayco No Slack Gold Label Serpentine Belt Tensioner 1 Piece, HD, Engineered To Handle Higher Torque, 89483 (Part No.89483)

Dayco No Slack Gold Label Serpentine Belt Tensioner 1 Piece, HD, Engineered To Handle Higher Torque, 89483

from

$136.99
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.
See More

Dayco No Slack Gold Label – Dayco No Slack Gold Label Serpentine Belt Tensioner 1 Piece, HD, Engineered To Handle Higher Torque, 89473 (Part No.89473)

Dayco No Slack Gold Label Serpentine Belt Tensioner 1 Piece, HD, Engineered To Handle Higher Torque, 89473

from

$132.99
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.
See More

Litens – Litens Accessory Drive Belt Tensioner – Original Equipment Quality, 910541A (Part No.910541A)

Litens Accessory Drive Belt Tensioner - Original Equipment Quality, 910541A

from

$122.99
“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.”
See More

Dayco No Slack Gold Label – Dayco No Slack Gold Label Serpentine Belt Tensioner 1 Piece, HD, Built To Outperform And Outlast OE Parts, 89486 (Part No.89486)

Dayco No Slack Gold Label Serpentine Belt Tensioner 1 Piece, HD, Built To Outperform And Outlast OE Parts, 89486

from

$111.99
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.
See More

Compare Deals on Thomas Belt Tensioners

Shop Thomas Belt Tensioners today. Advance Auto Parts carries top rated Belt Tensioners brands for your Thomas. Search through our selection of popular aftermarket or OEM parts, we are confident you can find the Belt Tensioners deal that will fit your vehicle hassle-free.

Compare before you buy, we offer customer reviews and star ratings on all of our Thomas Belt Tensioners. Once you have reviewed your options and selected the deal that fits your budget, all that is left for you to decide is how to have your new Thomas parts delivered. You can either have the Belt Tensioners shipped directly to you or you can pick them up at your local Advance Auto Parts store.

Start shopping below and watch your savings grow!