2012 Peterbilt 337 Belts and Hoses
Find Your Specific 2012 Peterbilt 337 Belts and Hoses
Below you will find various in-demand Peterbilt Belts and Hoses, components and accessories for your 2012 337. Advance Auto Parts has popular 337 parts like Radiator Hoses, Serpentine and V Belts, Pulleys and more. You’ll also find aftermarket and OEM Belts and Hoses for other 337 model years including
2014,
2015,
2016,
2017,
2018,
2019,
2020,
2021,
2022 and more. Select a category of 2012 Peterbilt 337 Belts and Hoses below and start saving instantly.
Popular 2012 Peterbilt 337 Belts and Hoses Categories
Essential Belts and Hoses for 2012 Peterbilt 337s
Gates – V-Ribbed (Heavy Duty) Serpentine Belt: 93.625" Long, 8 Rib Count, Exact Fit (Part No.K080931HD)
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:
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Product Features:
- Patented material provides peak performance at prolonged extreme operating temperatures
- Heavy-duty construction resists cracking and wear, even at 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
- Engineered to save your fleet money and reduce downtime
- Tensioner Replacement is Recommended (if equipped)
Driveworks – Poly Rib Belt HD Serpentine Belt; 82.5 Long, 8 Rib Count, Heavy Duty (Part No.825K8)
from
$23.99
This Driveworks v-belt is designed to provide better belt-to-pulley contact. The specialized rubber compound incorporates a high temperature polymer formulated to maximize load carrying requirements and belt life. This Driveworks belt has been constructed and engineered to meet the stringent demands of today’s automotive drive systems. The Driveworks v-belt delivers long-lasting dependable belt life.
Product Features:
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Product Features:
- Constructed with heat and ozone resistant EPDM rubber
- Fiber is added to the rib stock to reinforce the rubber and reduce noise from worn and misaligned pulleys
- Made with treated polyester cord to reduce belt stretch
- Meets OEM requirements
Dayco – Poly Rib Belt HD Serpentine Belt; 84.45 Long, 8 Rib Count, Heavy Duty (Part No.5080845)
from
$75.99
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:
See More
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
Gates – V-Ribbed (Heavy Duty) Serpentine Belt: 93.169" Long, 8 Rib Count, Exact Fit (Part No.K080926HD)
from
$95.99
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:
See More
Product Features:
- Patented material provides peak performance at prolonged extreme operating temperatures
- Heavy-duty construction resists cracking and wear, even at 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
- Engineered to save your fleet money and reduce downtime
- Tensioner Replacement is Recommended (if equipped)
Dayco – Poly Rib Belt HD Serpentine Belt; 82.5 Long, 8 Rib Count, Heavy Duty (Part No.5080825)
from
$32.99
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:
See More
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
Gates – Molded Silicone Coolant Hose (Part No.28359)
from
$97.99
Product Features:
See More
- Same dimensional specifications of the OEM hose
- Silicone cover resists high temperature ambient environments
- 3-ply polyester woven fabric reinforcement guarantees high burst strength & superior service life
- Tube constructed w/ a thick silicone liner designed to handle coolants, including new extended life coolants
- Provides long-life service in both low & high temperature environments
- Temperature range: -65 Deg. F to +350 Deg. F (-54 Deg. C to +149 Deg. C)
Dayco – Straight Radiator Hoses; Silicone, Heavy Duty, 2 Inch Inner Dia. (Sold by foot) (Part No.78200GL)
from
$4.99
Made with special silicone compounds and reinforced with a ply of braided polyester yarn, the Dayco straight radiator hose H.D. – silicone sustains up to six times longer service life than an ordinary coolant hose when installed with a Dayco lined hose clamp. It has a temperature rating of -40 Deg. F (-40 Deg. C) to +350 Deg. F (+175 Deg. C) and is designed for a range of H.D. trucking applications where routing is relatively straight.
Product Features:
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Product Features:
- Capable of withstanding extreme temperatures and high-pressure environments
- Meets stringent OE specifications
- Designed to meet SAE requirements J20R1, Class B Tube, Class C Cover, standard wall construction
- PLEASE NOTE: Item is sold and priced by the foot. See store for details.
Dayco – Straight Radiator Hoses; Silicone, HD, 2 1/2 Inch Inner Dia. (Sold by inch) (Part No.78250GL)
from
$6.29
Made with special silicone compounds & reinforced with a ply of braided polyester yarn, the Dayco straight radiator hose H.D. – silicone sustains up to six times longer service life than an ordinary coolant hose when installed with a Dayco lined hose clamp. It has a temperature rating of -40 Deg. F (-40 Deg. C) to +350 Deg. F (+175 Deg. C) and is designed for a range of H.D. trucking applications where routing is relatively straight.
Product Features:
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Product Features:
- Capable of withstanding extreme temperatures and high-pressure environments
- Meets stringent OE specifications
- Designed to meet SAE requirements J20R1, Class B Tube, Class C Cover, standard wall construction
- PLEASE NOTE: Item is sold and priced by the inch. See store for details.
Dayco No Slack Gold Label – Serpentine Idler/Tensioner Pulley; Steel, 74mm Dia., 31.26mm Width, 8 Grooves (Part No.89103)
from
$55.99
Designed to replace idler and tensioner pulleys for serpentine drives in heavy-duty diesel engine applications, Dayco HD idler/tensioner pulleys are machined from high-strength steel or powdered metal material to provide excellent wear resistance under harsh environments. Dual pressed-in bearings provide long bearing life and protection against the shock loads experienced by today’s diesel trucks.
Product Features:
See More
Product Features:
- Engineered for the demanding drive systems of today’s class 4-8 heavy-duty commercial trucks
- Premium OE technology to ensure peak performance under extreme conditions
- Utilizes 3D dimensional computer aided design (CAD) and finite element analysis (FEA) for optimal design and maximum structural integrity
- Meets or exceeds OE quality
Gates – DRIVEALIGN PULLEY (Part No.36096)
from
$95.99
DRIVEALIGN PULLEY
Litens – Idler/Tensioner Pulley: Direct Fit, Steel, 86mm Diameter (Part No.900117A)
from
$57.99
This pulley is designed and engineered by Litens Automotive the inventor of the first automatic belt tensioner in 1979 and today the world’s largest supplier of Original Equipment (O.E.) belt tensioning and routing products. This pulley is produced for serpentine belt routing applications and as the pulley component on automatic tensioner applications. This pulley conforms to original equipment material, tolerances, and specifications. The part is made using the O.E. specified design and meets all performance and durability requirements. Heavy duty steel construction for long life and trouble-free performance. Designed for HD truck applications. 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.
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Dayco No Slack Gold Label – Serpentine Idler/Tensioner Pulley; Steel, 74mm Dia., 32.8mm Width, Smooth (Part No.89105)
from
$45.99
Designed to replace idler and tensioner pulleys for serpentine drives in heavy-duty diesel engine applications, Dayco HD idler/tensioner pulleys are machined from high-strength steel or powdered metal material to provide excellent wear resistance under harsh environments. Dual pressed-in bearings provide long bearing life and protection against the shock loads experienced by today’s diesel trucks.
Product Features:
See More
Product Features:
- Engineered for the demanding drive systems of today’s class 4-8 heavy-duty commercial trucks
- Premium OE technology to ensure peak performance under extreme conditions
- Utilizes 3D dimensional computer aided design (CAD) and finite element analysis (FEA) for optimal design and maximum structural integrity
- Meets or exceeds OE quality
Dayco No Slack Gold Label – Serpentine Belt Tensioner; 1 Piece, HD, Engineered To Handle Higher Torque (Part No.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.
Product Features:
See More
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
Dayco No Slack Gold Label – Serpentine Belt Tensioner; 1 Piece, HD, Built To Outperform And Outlast OE Parts (Part No.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.
Product Features:
See More
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
Gates – FleetRunner½ Heavy-Duty Automatic Belt Drive Tensioner (Part No.38631)
from
$126.99
Product Features:
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- 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
Litens – Accessory Drive Belt Tensioner – Original Equipment Quality (Part No.910588A)
from
$156.99
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:
See More
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
Gates – FleetRunner« Heavy-Duty Automatic Belt Drive Tensioner (Part No.38702)
from
$166.99
Product Features:
See More
- 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
Gates – FleetRunner½ Heavy-Duty Automatic Belt Drive Tensioner (Part No.38627)
from
$141.99
Product Features:
See More
- 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
Litens – Accessory Drive Belt Tensioner – Original Equipment Quality (Part No.910575A)
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:
See More
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.
Dayco No Slack Gold Label – Serpentine Belt Tensioner; 1 Piece, HD, Engineered To Handle Higher Torque (Part No.89474)
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:
See More
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
Litens – Accessory Drive Belt Tensioner – Original Equipment Quality (Part No.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.
Product Features:
See More
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.
Upgrade your 2012 Peterbilt 337 with Top-Quality Belts and Hoses
When it comes to maintaining or upgrading your 2012 Peterbilt 337, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Peterbilt or enhancing its overall performance, Belts and Hoses are key to keeping your 337 functioning at its best. At Advance Auto Parts, we offer a wide selection of 18 Belts and Hoses for the 2012 Peterbilt 337, designed to meet your needs without breaking the bank.
From
Radiator Hose
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 2012 Peterbilt 337 at great prices.
Our Belts and Hoses inventory for this model
ranges from just $23.99 to $166.99, with
an average price of $91.60.
Our 18 Belts and Hoses in stock come from 4 trusted brands, so you’re sure to find the right part for your 2012 Peterbilt 337 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 Batteries and Chargers, Fluids and Chemicals
and more to make sure your 2012 Peterbilt 337 is always ready to roll. We’re committed to providing you with everything you need to keep your 337 in top shape, all in one place.
Start shopping confidently below for your 2012 Peterbilt 337!
Best-Selling Radiator Hoses for 2012 Peterbilt 337s
Enhance the driving experience in your Peterbilt with 1 quality Radiator Hose components, starting at $97.99.
Gates – Molded Silicone Coolant Hose (Part No.28359)
from
$97.99
Product Features:
See More
- Same dimensional specifications of the OEM hose
- Silicone cover resists high temperature ambient environments
- 3-ply polyester woven fabric reinforcement guarantees high burst strength & superior service life
- Tube constructed w/ a thick silicone liner designed to handle coolants, including new extended life coolants
- Provides long-life service in both low & high temperature environments
- Temperature range: -65 Deg. F to +350 Deg. F (-54 Deg. C to +149 Deg. C)
Most Popular 2012 Peterbilt 337 Serpentine and V Belts
Customize your Peterbilt with 7 Serpentine and V Belts products
like Serpentine Belts, all
priced under $99.99.
Dayco – Poly Rib Belt HD Serpentine Belt; 82.5 Long, 8 Rib Count, Heavy Duty (Part No.5080825)
from
$32.99
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:
See More
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
Gates – V-Ribbed (Heavy Duty) Serpentine Belt: 83.125" Long, 8 Rib Count, Exact Fit (Part No.K080825HD)
from
$58.99
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:
See More
Product Features:
- Patented material provides peak performance at prolonged extreme operating temperatures
- Heavy-duty construction resists cracking and wear, even at 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
- Engineered to save your fleet money and reduce downtime
- Tensioner Replacement is Recommended (if equipped)
Gates – FleetRunner« Heavy-Duty Micro-V« Serpentine Drive Belt (Part No.K080842HD)
from
$99.99
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:
See More
Product Features:
- Patented material provides peak performance at prolonged extreme operating temperatures
- Heavy-duty construction resists cracking and wear, even at 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
- Engineered to save your fleet money and reduce downtime
- Tensioner Replacement is Recommended (if equipped)
Gates – V-Ribbed Serpentine Belt: 84.799" Long, 8 Rib Count, Exact Fit (Part No.K080842)
from
$76.99
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:
See More
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.
Dayco – Poly Rib Belt HD Serpentine Belt; 84.45 Long, 8 Rib Count, Heavy Duty (Part No.5080845)
from
$75.99
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:
See More
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
Gates – Micro-V« Serpentine Drive Belt (Part No.K080825)
from
$50.99
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:
See More
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.
Driveworks – Poly Rib Belt HD Serpentine Belt; 82.5 Long, 8 Rib Count, Heavy Duty (Part No.825K8)
from
$23.99
This Driveworks v-belt is designed to provide better belt-to-pulley contact. The specialized rubber compound incorporates a high temperature polymer formulated to maximize load carrying requirements and belt life. This Driveworks belt has been constructed and engineered to meet the stringent demands of today’s automotive drive systems. The Driveworks v-belt delivers long-lasting dependable belt life.
Product Features:
See More
Product Features:
- Constructed with heat and ozone resistant EPDM rubber
- Fiber is added to the rib stock to reinforce the rubber and reduce noise from worn and misaligned pulleys
- Made with treated polyester cord to reduce belt stretch
- Meets OEM requirements
Top Picks for 2012 Peterbilt 337 Pulleys
Upgrade Peterbilt 337s with top-quality Pulleys parts, including 4 OEM and aftermarket selections for your 2012 model.
Dayco No Slack Gold Label – Serpentine Idler/Tensioner Pulley; Steel, 74mm Dia., 32.8mm Width, Smooth (Part No.89105)
from
$45.99
Designed to replace idler and tensioner pulleys for serpentine drives in heavy-duty diesel engine applications, Dayco HD idler/tensioner pulleys are machined from high-strength steel or powdered metal material to provide excellent wear resistance under harsh environments. Dual pressed-in bearings provide long bearing life and protection against the shock loads experienced by today’s diesel trucks.
Product Features:
See More
Product Features:
- Engineered for the demanding drive systems of today’s class 4-8 heavy-duty commercial trucks
- Premium OE technology to ensure peak performance under extreme conditions
- Utilizes 3D dimensional computer aided design (CAD) and finite element analysis (FEA) for optimal design and maximum structural integrity
- Meets or exceeds OE quality
Dayco No Slack Gold Label – Serpentine Idler/Tensioner Pulley; Steel, 74mm Dia., 31.26mm Width, 8 Grooves (Part No.89103)
from
$55.99
Designed to replace idler and tensioner pulleys for serpentine drives in heavy-duty diesel engine applications, Dayco HD idler/tensioner pulleys are machined from high-strength steel or powdered metal material to provide excellent wear resistance under harsh environments. Dual pressed-in bearings provide long bearing life and protection against the shock loads experienced by today’s diesel trucks.
Product Features:
See More
Product Features:
- Engineered for the demanding drive systems of today’s class 4-8 heavy-duty commercial trucks
- Premium OE technology to ensure peak performance under extreme conditions
- Utilizes 3D dimensional computer aided design (CAD) and finite element analysis (FEA) for optimal design and maximum structural integrity
- Meets or exceeds OE quality
Gates – DRIVEALIGN PULLEY (Part No.36096)
from
$95.99
DRIVEALIGN PULLEY
Litens – Idler/Tensioner Pulley: Direct Fit, Steel, 86mm Diameter (Part No.900117A)
from
$57.99
This pulley is designed and engineered by Litens Automotive the inventor of the first automatic belt tensioner in 1979 and today the world’s largest supplier of Original Equipment (O.E.) belt tensioning and routing products. This pulley is produced for serpentine belt routing applications and as the pulley component on automatic tensioner applications. This pulley conforms to original equipment material, tolerances, and specifications. The part is made using the O.E. specified design and meets all performance and durability requirements. Heavy duty steel construction for long life and trouble-free performance. Designed for HD truck applications. 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.
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In-Demand Belt Tensioners for 2012 Peterbilt 337s
Select from 6 premium Belt Tensioners parts for your 2012 Peterbilt 337, with prices ranging from $128.99 to $166.99.
Dayco No Slack Gold Label – Serpentine Belt Tensioner; 1 Piece, HD, Built To Outperform And Outlast OE Parts (Part No.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.
Product Features:
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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
Gates – FleetRunner« Heavy-Duty Automatic Belt Drive Tensioner (Part No.38702)
from
$166.99
Product Features:
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- 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
Litens – Accessory Drive Belt Tensioner – Original Equipment Quality (Part No.910588A)
from
$156.99
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:
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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
Litens – Accessory Drive Belt Tensioner – Original Equipment Quality (Part No.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.
Product Features:
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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.
Gates – FleetRunner½ Heavy-Duty Automatic Belt Drive Tensioner (Part No.38627)
from
$141.99
Product Features:
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- 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
Dayco No Slack Gold Label – Serpentine Belt Tensioner; 1 Piece, HD, Engineered To Handle Higher Torque (Part No.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.
Product Features:
See More
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
FAQs for 2012 Peterbilt 337 Belts and Hoses
Which Belts and Hoses are best-sellers for 2012 Peterbilt 337s?
Out of 18 Belts and Hoses that fit 2012 Peterbilt 337s, the following parts are the top sellers:
- Poly Rib Belt HD Serpentine Belt; 82.5 Long, 8 Rib Count, Heavy Duty (19270409) – $32.99
- Serpentine Idler/Tensioner Pulley; Steel, 74mm Dia., 32.8mm Width, Smooth (20130040) – $45.99
- V-Ribbed (Heavy Duty) Serpentine Belt: 83.125" Long, 8 Rib Count, Exact Fit (10913733) – $58.99
What’s the price range for 2012 Peterbilt 337 Belts and Hoses?
Belts and Hose prices for the 2012 Peterbilt 337 start at $23.99 and go up to $166.99 for the most premium parts.
What’s the average price of a Belts and Hose for a 2012 Peterbilt 337?
The average price for Belts and Hoses for the 2012 Peterbilt 337 is $91.60. 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 Peterbilt 337 model years?
What are the cheapest Belts and Hoses for my 2012 Peterbilt 337?
The cheapest 2012 Peterbilt 337 Belts and Hoses we carry in stock are:
- Poly Rib Belt HD Serpentine Belt; 82.5 Long, 8 Rib Count, Heavy Duty (3324923) – $23.99
- Poly Rib Belt HD Serpentine Belt; 82.5 Long, 8 Rib Count, Heavy Duty (19270409) – $32.99
- Serpentine Idler/Tensioner Pulley; Steel, 74mm Dia., 32.8mm Width, Smooth (20130040) – $45.99
- Micro-V« Serpentine Drive Belt (10496915) – $50.99
- Serpentine Idler/Tensioner Pulley; Steel, 74mm Dia., 31.26mm Width, 8 Grooves (20130041) – $55.99
What types of Belts and Hoses do you sell for my 2012 Peterbilt 337?
As of 2/5/25, these are some of the most in-demand types of Belts and Hoses for a 2012 Peterbilt 337:
Can I get help with 2012 Peterbilt 337 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 Peterbilt Belts and Hoses and more.
What is your return policy for Peterbilt 337 Belts and Hoses?
Advance Auto Parts keeps returns simple. For new Peterbilt 337 Belts and Hoses and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.
