2025 Freightliner B2 Belts and Hoses

Essential Belts and Hoses for 2025 Freightliner B2s

Litens – Accessory Drive Belt Tensioner – Original Equipment Quality (Part No.910538A)

Accessory Drive Belt Tensioner - Original Equipment Quality

from

$187.99
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
  • Accessory drive belts and tensioners are manufactured with similar design life targets. Since belt removal is required to change the tensioner, replacing both will extend the system service life and lower labor costs versus individual replacement.
See More

Gates – FleetRunner Heavy-Duty Automatic Belt Drive Tensioner (Part No.38631)

FleetRunner Heavy-Duty Automatic Belt Drive Tensioner

from

$126.99
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.

Product Features:
  • Optimized components engineered for maximum strength and durability
  • Patented design ensures superior belt alignment and tension, improving transmission cost-effectiveness and service life
  • The patented labyrinth seal prevents contamination of internal parts for maximum durability and life.
  • Long-life steel pulleys with dust cover to protect internal bearings from contamination
  • Double row bearings carry more load and last up to 3X longer than two individual bearings
  • Round chrome-silicone torsion spring for less fatigue than coil spring designs.
  • The patented damping mechanism ensures maximum stability, reduces vibration and extends the life of the belt, idler and other auxiliary transmission components
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Dorman – Automatic Belt Tensioner (Part No.419-375)

Automatic Belt Tensioner

from

$117.99
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.

Product Features:
  • Direct replacement – this accessory drive belt tensioner assembly is designed to match the fit of an original equipment assembly on specified vehicles
  • Ideal solution – engineered to help ensure proper belt tension when an original belt is slipping, broken, or worn from fatigue
  • Durable construction – designed and manufactured to strict specifications for reliable performance
  • Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience
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Litens – Accessory Drive Belt Tensioner – Original Equipment Quality (Part No.910552A)

Accessory Drive Belt Tensioner - Original Equipment Quality

from

$124.99
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
  • Accessory drive belts and tensioners are manufactured with similar design life targets. Since belt removal is required to change the tensioner, replacing both will extend the system service life and lower labor costs versus individual replacement.
See More

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

Accessory Drive Belt Tensioner - Original Equipment Quality

from

$168.99
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.

Product Features:
  • Manufactured by Litens, the largest original equipment tensioner and pulley supplier in the world, to ensure proper form, fit, and performance.
  • Internal “round spring” technology to provide constant belt tension and alignment throughout its service life.
  • Heavy duty steel pulley construction
  • OE-spec sealed ball bearings with synthetic grease and double lip seals for long life
  • Installation instructions included
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Dayco No Slack Gold Label – Serpentine Belt Tensioner; 1 Piece, HD, Engineered To Handle Higher Torque (Part No.89455)

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

from

$83.99
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
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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

Gates – FleetRunner Heavy-Duty Automatic Belt Drive Tensioner (Part No.38567)

FleetRunner Heavy-Duty Automatic Belt Drive Tensioner

from

$116.99
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.

Product Features:
  • Optimized components for maximum strength and durability
  • Its patented design provides excellent belt alignment and tension, so drive life and efficiency are improved.
  • Labyrinth sealing prevents contamination of internal parts to maximize durability and service life.
  • Long-life steel pulleys with dust cover to protect internal bearings from contamination
  • Double-row bearings carry more load and last up to 3 times longer than two individual bearings
  • Round torsion spring made of chrome-silicone for less fatigue than flat springs
  • Patented damping mechanism provides maximum stability, reducing vibration and increasing the life of the belt, tensioner and other accessory drive components
See More

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

Accessory Drive Belt Tensioner - Original Equipment Quality

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.

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
  • Accessory drive belts and tensioners are manufactured with similar design life targets. Since belt removal is required to change the tensioner, replacing both will extend the system service life and lower labor costs versus individual replacement.
See More

Dayco – Poly Rib Belt HD Serpentine Belt; 60.5 Long, 8 Rib Count, Heavy Duty (Part No.5080605)

Poly Rib Belt HD Serpentine Belt; 60.5 Long, 8 Rib Count, Heavy Duty

from

$54.99
Produced for heavy-duty vehicles and buses with multiple accessories, Dayco HD poly-V belts are made from EPDM material to resist heat and are compliant with the latest standards, guaranteeing resistance, reliability, low noise and longer service life. Engineered for high torque and power pulses, these belts also feature specially treated cords within the belt to resist stretching and ensure length stability.

Product Features:
  • Engineered to handle operating conditions with temperatures up to 130°C (266°F)
  • Designed for multiple accessories such as A/C, power steering pumps, alternators and water pumps
  • Capable of delivering excellent performance in high torque and high power pulse applications
  • Specially formulated treated cord insures length and tension stability on heavy duty diesel engine drives for the life of the belt
See More

Gates – Automotive XL High Capacity V-Belt (Part No.9435)

Automotive XL High Capacity V-Belt

from

$23.79
Product Features:
  • Fiber-loaded rubber mount adds flexibility along the belt and provides greater lateral stability on the pulley
  • Form-ground to ensure precise top width and sidewall dimensional control for proper fit to the pulley
  • Thermally-active tensile cords for maintenance-free performance when properly installed and tensioned
  • Resists oil, heat, ozone, weather and aging for improved belt life
  • Meets or exceeds SAE J636C specifications
See More

Dayco – Poly Rib Belt HD Serpentine Belt; 80.51 Long, 8 Rib Count, Heavy Duty (Part No.5080805)

Poly Rib Belt HD Serpentine Belt; 80.51 Long, 8 Rib Count, Heavy Duty

from

$69.99
Produced for heavy-duty vehicles and buses with multiple accessories, Dayco HD poly-V belts are made from EPDM material to resist heat and are compliant with the latest standards, guaranteeing resistance, reliability, low noise and longer service life. Engineered for high torque and power pulses, these belts also feature specially treated cords within the belt to resist stretching and ensure length stability.

Product Features:
  • Engineered to handle operating conditions with temperatures up to 130°C (266°F)
  • Designed for multiple accessories such as A/C, power steering pumps, alternators and water pumps
  • Capable of delivering excellent performance in high torque and high power pulse applications
  • Specially formulated treated cord insures length and tension stability on heavy duty diesel engine drives for the life of the belt
See More

Dayco – Bottom Cog V-Belt; 43.5 Inch Long, Exact Fit Premium Quality (Part No.17435)

Bottom Cog V-Belt; 43.5 Inch Long, Exact Fit Premium Quality

from

$21.29
Dayco’s high performance HD V-belt is one of the most innovative, top performing belts for its application. By combining raw-edge construction with a specially formulated polyester cord treatment, it offers excellent resistance to repeated flexing and protection against heat, oil and grease as well as the strength, stability and reliability required for vehicles that still need a heavy-duty V-belt.

Product Features:
  • Designed for efficient power transmission to vehicle accessories in today’s trucks and buses
  • Provides greater durability and flexibility – 35% stronger than all previous versions
  • Features specially treated cords for added strength, stability and reliability
  • Made with specially formulated rubber compounds, this belt is highly resistant to extreme under hood temperatures that can cause premature damage to under engineered rubber compounds
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Gates – Automotive XL High Capacity V-Belt (Part No.9447)

Automotive XL High Capacity V-Belt

from

$32.49
Replacement belt for the most demanding engine drives. Due to thermal forces, this variable notched belt actually tightens on the drive as it gets hot. This results in improved belt performance by reducing tension decay and noise.

Product Features:
  • Fiber-loaded rubber mount adds flexibility along the belt and provides greater lateral stability on the pulley
  • Ground to ensure precise dimensional control of the top width and sidewall for proper adjustment to the pulley.
  • Thermally-active tensile cords for maintenance-free performance when properly installed and tensioned
  • Resistant to oil, heat, ozone, weathering, and aging for better belt life.
  • Meets or exceeds SAE J636C specifications
See More

Gates – Automotive XL High Capacity V-Belt (Part No.9451)

Automotive XL High Capacity V-Belt

from

$24.29
Replacement belt for the most demanding engine drives. Due to thermal forces, this variable notched belt actually tightens on the drive as it gets hot. This results in improved belt performance by reducing tension decay and noise.

Product Features:
  • The fiber-filled rubber adds flexibility along the entire length of the belt and provides greater lateral stability in the pulley.
  • Form-ground to ensure precise top width and sidewall dimensional control for proper fit to the pulley
  • Thermally active pull cords for maintenance-free operation when the strap is properly installed and tensioned
  • Resists oil, heat, ozone, weather, and decay to improve belt life
  • Meets or exceeds SAE J636C specifications
See More

Gates – FleetRunner Heavy-Duty V-Belt (Part No.9435HD)

FleetRunner Heavy-Duty V-Belt

from

$32.99
Designed for the toughest applications, FleetRunner construction provides superior flexibility, stability, load capacity, and unsurpassed belt life. Patented materials deliver peak performance at extreme prolonged operating temperatures making this belt the ultimate problem solver. An advanced blend of EPDM rubber technology withstands the modern threats of deterioration from increased exposure to ozone and water-based coolants. FleetRunner does this all while providing the lowest cost per mile for fleets, including 3/4 and 1 ton pickups.

Product Features:
  • Patented material provides peak performance at extremely prolonged operating temperatures
  • Crack, wear, oil, and heat resistant construction
  • The special compound provides unprecedented flexibility, stability, load-bearing capacity and belt life.
  • Unique notch pattern offers greater flexibility for smaller diameter pulleys
  • Problem solver for failed disks
  • Engineered to save your fleet money and reduce downtime
  • Meets RMA standards for oil and heat resistance and static conductivity requirements
See More

Gates – FleetRunner Heavy-Duty V-Belt (Part No.9451HD)

FleetRunner Heavy-Duty V-Belt

from

$32.99
Designed for the toughest applications, FleetRunner construction provides superior flexibility, stability, load capacity, and unsurpassed belt life. Patented materials deliver peak performance at extreme prolonged operating temperatures making this belt the ultimate problem solver. An advanced blend of EPDM rubber technology withstands the modern threats of deterioration from increased exposure to ozone and water-based coolants. FleetRunner does this all while providing the lowest cost per mile for fleets, including 3/4 and 1 ton pickups.

Product Features:
  • Patented material provides peak performance at extremely prolonged operating temperatures
  • Heavy-duty construction resists cracking, wear, oil and heat
  • Special compound provides unmatched stability, load carrying capacity and belt life
  • Unique notch pattern offers greater flexibility for smaller diameter pulleys
  • Troubleshooter for troubled drives
  • Designed to save your fleet’s money and reduce downtime
  • Meets RMA standards for oil and heat resistance and static conductivity requirements
See More

Gates – FleetRunner Heavy-Duty V-Belt (Part No.9447HD)

FleetRunner Heavy-Duty V-Belt

from

$42.99
Designed for the toughest applications, FleetRunner construction provides superior flexibility, stability, load capacity, and unsurpassed belt life. Patented materials deliver peak performance at extreme prolonged operating temperatures making this belt the ultimate problem solver. An advanced blend of EPDM rubber technology withstands the modern threats of deterioration from increased exposure to ozone and water-based coolants. FleetRunner does this all while providing the lowest cost per mile for fleets, including 3/4 and 1 ton pickups.

Product Features:
  • Proprietary material provides maximum performance at extremely long operating temperatures
  • Construction that resists cracking, wear, oil and heat
  • The special compound provides unprecedented flexibility, stability, load-bearing capacity and belt life.
  • Unique under-cord notch pattern provides greater flexibility for smaller diameter pulleys
  • Problem solver for failed disks
  • Designed to save your fleet’s money and reduce downtime
  • Meets RMA oil and heat resistance standards and static conductivity requirements
See More

Gates – FleetRunner Heavy-Duty Micro-V Serpentine Drive Belt (Part No.K080680HD)

FleetRunner Heavy-Duty Micro-V Serpentine Drive Belt

from

$97.99
Gates FleetRunner Micro-V Belts are designed for the toughest applications. FleetRunner construction provides superior flexibility, stability, load capacity, and unsurpassed belt life. Patented materials deliver peak performance at extreme prolonged operating temperatures, making this belt the ultimate problem solver. An advanced blend of EPDM rubber technology withstands the modern threats of deterioration from increased exposure to ozone and water-based coolants. FleetRunner does this all while providing the lowest cost per mile for fleets, including 3/4 and 1 ton pickups.

Product Features:
  • Patented material provides peak performance at prolonged extreme operating temperatures
  • Heavy-duty construction resists cracking and wear, even at extreme temperatures
  • The special compound provides unprecedented flexibility, stability, load-carrying capacity and belt life.
  • Problem solver designed for the toughest applications
  • Consistently outperforms other heavy-duty serpentine belts on the market
  • Designed to save your fleet money and reduce downtime
  • Replacement of the tensioner is recommended (if equipped)
See More

Gates – FleetRunner Heavy-Duty Micro-V Serpentine Drive Belt (Part No.K080790HD)

FleetRunner Heavy-Duty Micro-V Serpentine Drive Belt

from

$79.99
Gates FleetRunner Micro-V Belts are designed for the toughest applications. FleetRunner construction provides superior flexibility, stability, load capacity, and unsurpassed belt life. Patented materials deliver peak performance at extreme prolonged operating temperatures, making this belt the ultimate problem solver. An advanced blend of EPDM rubber technology withstands the modern threats of deterioration from increased exposure to ozone and water-based coolants. FleetRunner does this all while providing the lowest cost per mile for fleets, including 3/4 and 1 ton pickups.

Product Features:
  • Patented material provides peak performance at prolonged extreme operating temperatures
  • Construction resists cracking and wear, even at extreme temperatures
  • Special compound provides unmatched flexibility, stability, load carrying capacity and belt life
  • A problem-solving tool designed for the toughest applications
  • Consistently outperforms other heavy-duty serpentine belts on the market
  • Engineered to save your fleet money and reduce downtime
  • Replacement of the tensioner is recommended (if equipped)
See More

Gates – Micro-V« Serpentine Drive Belt (Part No.K080605)

Micro-V« Serpentine Drive Belt

from

$60.99
Import or domestic, car or truck, every vehicle can depend on the superior quality of Gates precision fit Micro-V belts. With advanced technology that matches the OE size, construction and materials, Gates Micro-V ensures optimal vehicle performance.

Product Features:
  • Special belt construction eliminates belt noise, reduces tension loss and solves problem drive applications
  • EPDM rubber constructions resist cracking on the rib surface
  • Meets or exceeds all specifications from the Original Equipment Manufacturer
  • Tensioner Replacement is Recommended (if equipped)
  • Unique form grinding of each individual belt assures precise dimensional control.
  • Meets or exceeds SAE J1459, SAE J2432, and SAE J1596 specifications.
See More

Gates – FleetRunner Heavy-Duty Micro-V Serpentine Drive Belt (Part No.K080760HD)

FleetRunner Heavy-Duty Micro-V Serpentine Drive Belt

from

$76.99
Gates FleetRunner Micro-V Belts are designed for the toughest applications. FleetRunner construction provides superior flexibility, stability, load capacity, and unsurpassed belt life. Patented materials deliver peak performance at extreme prolonged operating temperatures, making this belt the ultimate problem solver. An advanced blend of EPDM rubber technology withstands the modern threats of deterioration from increased exposure to ozone and water-based coolants. FleetRunner does this all while providing the lowest cost per mile for fleets, including 3/4 and 1 ton pickups.

Product Features:
  • Patented material provides peak performance at prolonged extreme operating temperatures
  • Crack and wear resistant construction, even in extreme temperatures
  • Special compound provides unmatched flexibility, stability, load carrying capacity and belt life
  • A problem-solving tool designed for the toughest applications
  • Consistently outperforms other heavy-duty coil belts on the market
  • Engineered to save your fleet money and reduce downtime
  • Tensioner Replacement is Recommended (if equipped)
See More

Dayco – Poly Rib Belt HD Serpentine Belt; 83.5 Long, 8 Rib Count, Heavy Duty (Part No.5080835)

Poly Rib Belt HD Serpentine Belt; 83.5 Long, 8 Rib Count, Heavy Duty

from

$89.99
Produced for heavy-duty vehicles and buses with multiple accessories, Dayco HD poly-V belts are made from EPDM material to resist heat and are compliant with the latest standards, guaranteeing resistance, reliability, low noise and longer service life. Engineered for high torque and power pulses, these belts also feature specially treated cords within the belt to resist stretching and ensure length stability.

Product Features:
  • Engineered to handle operating conditions with temperatures up to 130°C (266°F)
  • Designed for multiple accessories such as A/C, power steering pumps, alternators and water pumps
  • Capable of delivering excellent performance in high torque and high power pulse applications
  • Specially formulated treated cord insures length and tension stability on heavy duty diesel engine drives for the life of the belt
See More

Dayco – Poly Rib Belt HD Serpentine Belt; 96.18 Long, 8 Rib Count, Heavy Duty (Part No.5080962)

Poly Rib Belt HD Serpentine Belt; 96.18 Long, 8 Rib Count, Heavy Duty

from

$107.99
Produced for heavy-duty vehicles and buses with multiple accessories, Dayco HD poly-V belts are made from EPDM material to resist heat and are compliant with the latest standards, guaranteeing resistance, reliability, low noise and longer service life. Engineered for high torque and power pulses, these belts also feature specially treated cords within the belt to resist stretching and ensure length stability.

Product Features:
  • Engineered to handle operating conditions with temperatures up to 130 DegreeC (266 DegreeF)
  • Designed for multiple accessories such as A/C, power steering pumps, alternators and water pumps
  • Capable of delivering excellent performance in high torque and high power pulse applications
  • Specially formulated treated cord insures length and tension stability on heavy duty diesel engine drives for the life of the belt
See More

Gates – FleetRunner Heavy-Duty Micro-V Serpentine Drive Belt (Part No.K080813HD)

FleetRunner Heavy-Duty Micro-V Serpentine Drive Belt

from

$82.99
Gates FleetRunner Micro-V Belts are designed for the toughest applications. FleetRunner construction provides superior flexibility, stability, load capacity, and unsurpassed belt life. Patented materials deliver peak performance at extreme prolonged operating temperatures, making this belt the ultimate problem solver. An advanced blend of EPDM rubber technology withstands the modern threats of deterioration from increased exposure to ozone and water-based coolants. FleetRunner does this all while providing the lowest cost per mile for fleets, including 3/4 and 1 ton pickups.

Product Features:
  • Patented material provides peak performance at prolonged extreme operating temperatures
  • Crack and wear resistant construction, even in extreme temperatures
  • Special compound provides unmatched flexibility, stability, load carrying capacity and belt life
  • Problem solver designed for the toughest applications
  • Consistently outperforms other heavy-duty serpentine belts on the market
  • Designed to save your fleet money and reduce downtime
  • Tensioner Replacement is Recommended (if equipped)
See More

Gates – Micro-V Serpentine Drive Belt (Part No.K080806)

Micro-V Serpentine Drive Belt

from

$49.99
Import or domestic, car or truck, every vehicle can depend on the superior quality of Gates precision fit Micro-V belts. With advanced technology that matches the OE size, construction and materials, Gates Micro-V ensures optimal vehicle performance.

Product Features:
  • The special belt construction eliminates noise, reduces tension loss and solves transmission problems.
  • EPDM rubber constructions resist cracking on the rib surface
  • Meets or exceeds all OEM specifications
  • It is recommended to replace the tensioner (if equipped)
  • Unique form grinding of each individual belt assures precise dimensional control.
  • Meets or exceeds SAE J1459, SAE J2432, and SAE J1596 specifications.
See More

Gates – FleetRunner Heavy-Duty Micro-V Serpentine Drive Belt (Part No.K081074HD)

FleetRunner Heavy-Duty Micro-V Serpentine Drive Belt

from

$70.99
Gates FleetRunner Micro-V Belts are designed for the toughest applications. FleetRunner construction provides superior flexibility, stability, load capacity, and unsurpassed belt life. Patented materials deliver peak performance at extreme prolonged operating temperatures, making this belt the ultimate problem solver. An advanced blend of EPDM rubber technology withstands the modern threats of deterioration from increased exposure to ozone and water-based coolants. FleetRunner does this all while providing the lowest cost per mile for fleets, including 3/4 and 1 ton pickups.

Product Features:
  • The patented material provides optimal performance at prolonged extreme operating temperatures.
  • Heavy-duty construction resists cracking and wear, even at extreme temperatures
  • The special compound provides unprecedented flexibility, stability, load-carrying capacity and belt life.
  • A problem-solving tool designed for the toughest applications
  • Consistently outperforms other heavy-duty serpentine belts on the market
  • Designed to save your fleet money and reduce downtime
  • Tensioner Replacement is Recommended (if equipped)
See More

Gates – Micro-V Serpentine Drive Belt (Part No.K080680)

Micro-V Serpentine Drive Belt

from

$74.99
Import or domestic, car or truck, every vehicle can depend on the superior quality of Gates precision fit Micro-V belts. With advanced technology that matches the OE size, construction and materials, Gates Micro-V ensures optimal vehicle performance.

Product Features:
  • The special belt construction eliminates noise, reduces tension loss and solves transmission problems.
  • EPDM rubber constructions resist cracking on the rib surface
  • Meets or exceeds all specifications from the Original Equipment Manufacturer
  • It is recommended to replace the tensioner (if equipped)
  • Unique form grinding of each individual belt assures precise dimensional control.
  • Meets or exceeds SAE J1459, SAE J2432, and SAE J1596 specifications.
See More

Upgrade your 2025 Freightliner B2 with Top-Quality Belts and Hoses

When it comes to maintaining or upgrading your 2025 Freightliner B2, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Freightliner or enhancing its overall performance, Belts and Hoses are key to keeping your B2 functioning at its best. At Advance Auto Parts, we offer a wide selection of 6 Belts and Hoses for the 2025 Freightliner B2, designed to meet your needs without breaking the bank. From Belt Tensioner replacements to Serpentine and V Belts upgrades, we’ve got you covered with parts that fit your vehicle perfectly and ensure long-lasting performance.

Affordable Prices and Wide Selection

Shopping for Belts and Hoses for any vehicle can be a hassle, especially if you’re on a budget. But with Advance Auto Parts, you can find high-quality Belts and Hoses for your 2025 Freightliner B2 at great prices. Our Belts and Hoses inventory for this model ranges from just $21.29 to $229.99, with an average price of $86.51. Our 6 Belts and Hoses in stock come from 2 trusted brands, so you’re sure to find the right part for your 2025 Freightliner B2 without overspending.

Explore Related Parts and More

While you’re here, don’t forget to check out other essential categories that go hand in hand with Belts and Hose upgrades. Explore related part types like Performance and Racing Products, Batteries and Chargers and more to make sure your 2025 Freightliner B2 is always ready to roll. We’re committed to providing you with everything you need to keep your B2 in top shape, all in one place. Start shopping confidently below for your 2025 Freightliner B2!

Best-Selling Belt Tensioners for 2025 Freightliner B2s

Enhance the driving experience in your Freightliner with 2 quality Belt Tensioner components, starting at $91.99.

Gates – FleetRunner Heavy-Duty Automatic Belt Drive Tensioner (Part No.38766)

FleetRunner Heavy-Duty Automatic Belt Drive Tensioner

from

$229.99
Product Features:
  • Optimized components engineered for maximum strength and durability
  • Patented design provides superior belt alignment and tension for improved drive efficiency and life
  • 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 flex-fatigue than flat-spring designs
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Dayco No Slack Gold Label – Serpentine Belt Tensioner; 1 Piece, HD, Engineered To Handle Higher Torque (Part No.89475)

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

from

$91.99
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
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Most Popular 2025 Freightliner B2 Serpentine and V Belts

Customize your Freightliner with 4 Serpentine and V Belts products like Serpentine Belts and V-Belts, all priced under $118.99.

Dayco – Bottom Cog V-Belt; 43.5 Inch Long, Exact Fit Premium Quality (Part No.17435)

Bottom Cog V-Belt; 43.5 Inch Long, Exact Fit Premium Quality

from

$21.29
Dayco’s high performance HD V-belt is one of the most innovative, top performing belts for its application. By combining raw-edge construction with a specially formulated polyester cord treatment, it offers excellent resistance to repeated flexing and protection against heat, oil and grease as well as the strength, stability and reliability required for vehicles that still need a heavy-duty V-belt.

Product Features:
  • Designed for efficient power transmission to vehicle accessories in today’s trucks and buses
  • Provides greater durability and flexibility – 35% stronger than all previous versions
  • Features specially treated cords for added strength, stability and reliability
  • Made with specially formulated rubber compounds, this belt is highly resistant to extreme under hood temperatures that can cause premature damage to under engineered rubber compounds
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Gates – FleetRunner Heavy-Duty Micro-V Serpentine Drive Belt (Part No.K080964HD)

FleetRunner Heavy-Duty Micro-V Serpentine Drive Belt

from

$118.99
Gates FleetRunner Micro-V Belts are designed for the toughest applications. FleetRunner construction provides superior flexibility, stability, load capacity, and unsurpassed belt life. Patented materials deliver peak performance at extreme prolonged operating temperatures, making this belt the ultimate problem solver. An advanced blend of EPDM rubber technology withstands the modern threats of deterioration from increased exposure to ozone and water-based coolants. FleetRunner does this all while providing the lowest cost per mile for fleets, including 3/4 and 1 ton pickups.

Product Features:
  • The patented material provides optimal performance at prolonged extreme operating temperatures.
  • Construction resists cracking and wear, even at extreme temperatures
  • Special compound provides unmatched flexibility, stability, load carrying capacity and belt life
  • A problem-solving tool designed for the toughest applications
  • Consistently outperforms other heavy-duty serpentine belts on the market
  • Engineered to save your fleet money and reduce downtime
  • It is recommended to replace the tensioner (if equipped)
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Gates – FleetRunner Heavy-Duty V-Belt (Part No.9435HD)

FleetRunner Heavy-Duty V-Belt

from

$32.99
Designed for the toughest applications, FleetRunner construction provides superior flexibility, stability, load capacity, and unsurpassed belt life. Patented materials deliver peak performance at extreme prolonged operating temperatures making this belt the ultimate problem solver. An advanced blend of EPDM rubber technology withstands the modern threats of deterioration from increased exposure to ozone and water-based coolants. FleetRunner does this all while providing the lowest cost per mile for fleets, including 3/4 and 1 ton pickups.

Product Features:
  • Patented material provides peak performance at extremely prolonged operating temperatures
  • Crack, wear, oil, and heat resistant construction
  • The special compound provides unprecedented flexibility, stability, load-bearing capacity and belt life.
  • Unique notch pattern offers greater flexibility for smaller diameter pulleys
  • Problem solver for failed disks
  • Engineered to save your fleet money and reduce downtime
  • Meets RMA standards for oil and heat resistance and static conductivity requirements
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Gates – Automotive XL High Capacity V-Belt (Part No.9435)

Automotive XL High Capacity V-Belt

from

$23.79
Product Features:
  • Fiber-loaded rubber mount adds flexibility along the belt and provides greater lateral stability on the pulley
  • Form-ground to ensure precise top width and sidewall dimensional control for proper fit to the pulley
  • Thermally-active tensile cords for maintenance-free performance when properly installed and tensioned
  • Resists oil, heat, ozone, weather and aging for improved belt life
  • Meets or exceeds SAE J636C specifications
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FAQs for 2025 Freightliner B2 Belts and Hoses

Which Belts and Hoses are best-sellers for 2025 Freightliner B2s?

Out of 6 Belts and Hoses that fit 2025 Freightliner B2s, the following parts are the top sellers:

What’s the price range for 2025 Freightliner B2 Belts and Hoses?

Belts and Hose prices for the 2025 Freightliner B2 start at $21.29 and go up to $229.99 for the most premium parts.

What’s the average price of a Belts and Hose for a 2025 Freightliner B2?

The average price for Belts and Hoses for the 2025 Freightliner B2 is $86.51. Keep in mind the variety of part types within our Belts and Hose category so you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Belts and Hoses for other Freightliner B2 model years?

Yes, we currently carry Belts and Hoses for 19 model years of Freightliner B2s between 2005 and 2024. Belts and Hoses are bought most frequently for the following model years: 2018, 2017, 2016, 2015, 2014, 2013, 2012, 2011, and 2010.

What are the cheapest Belts and Hoses for my 2025 Freightliner B2?

The cheapest 2025 Freightliner B2 Belts and Hoses we carry in stock are:

What types of Belts and Hoses do you sell for my 2025 Freightliner B2?

As of 11/2/25, these are some of the most in-demand types of Belts and Hoses for a 2025 Freightliner B2:

Can I get help with 2025 Freightliner B2 Belts and Hose orders?

Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about Freightliner Belts and Hoses and more.

What is your return policy for Freightliner B2 Belts and Hoses?

Advance Auto Parts keeps returns simple. For new Freightliner B2 Belts and Hoses and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.