Workhorse W42 Belts and Hoses

Essential Workhorse W42 Belts and Hoses

Gates – Safety Stripe« Standard Straight Heater Hose (Part No.28409)

Safety Stripe« Standard Straight Heater Hose

from

$2.49
Premium hose constructed for long service life.

Product Features:
  • Good resistance to high temperatures for extended periods of time, which prolongs service life
  • Meets SAE 20R3 Standard Wall Class D-2 requirements
  • Temperature Range: -40 Deg. F to +257 Deg. F (-40 Deg. C to +125 Deg. C)
  • Caution: Do not use for fuel or oil transfer applications
  • PLEASE NOTE: Item is priced and sold by the foot. See store for details.
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Litens – Serpentine Belt Tensioner: 1 Piece (Part No.999366A)

Serpentine Belt Tensioner: 1 Piece

from

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

Product Features:
  • Heavy duty thermoplastic pulley construction.
  • OE-spec sealed ball bearings with synthetic grease and double lip seals for long life
  • Installation instructions included
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Dayco – Serpentine Belt Tensioner; 1 Piece, HD, Built To Outperform And Outlast OE Parts (Part No.89258)

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

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$48.49
The Dayco automatic belt tensioner features Dayco’s original, patented flat spring design to provide less operating range variation. It reduces the risk of premature accessory bearing failure due to high tension and lessens the risk of belt noise and slippage – or poor performance caused by low tension. A PTFE string wound within the spring resists abrasion and dampens noise. Dayco’s tensioner is also designed with a heavy-duty cast aluminum spring case and arm, which helps resist cracking and fatigue and offers additional strength, lessening the risk of distortion. Additional premium thermoplastic rubber spring slot plugs and rubber O-ring seals help keep contaminants out and zinc coated mounting bolts resist rust.

Product Features:
  • Endures the toughest conditions while promoting quieter performance and longer life
  • Features a steel pivot tube on specific designs for enhanced stability
  • Built to outperform and outlast competitive OE parts
  • Rust resistant construction
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Litens – Serpentine Belt Tensioner: 1 Piece (Part No.999034A)

Serpentine Belt Tensioner: 1 Piece

from

$56.99
This genuine Litens tensioner is manufactured and designed by Litens, the world’s largest manufacturer of belt tensioners. To address shortcomings and common failure points of the original tensioner, Litens has released this new and improved design. A 20% increase in tension results in less noise and belt slip. The main tensioner pivot has been greatly improved to prevent binding frequently experienced with the original part, and a high speed bearing has been implemented to provide long life and reliability._

Product Features:
  • the world’s largest manufacturer of belt tensioners. To address shortcomings and common failure points of the original tensioner.
  • Litens has released this new and improved design. A 20% increase in tension results in less noise and belt slip. The main tensioner pivot has been greatly improved to prevent binding frequently experienced with the original part
  • and a high speed bearing has been implemented to provide long life and reliability.
  • Professional Mechanics will change this tensioner in approx. 20 minutes.
  • Due to the fact that belts and tensioners have similar Original Equipment “design life targets”, it is often a best practice to replace the belt tensioner when replacing a worn or broken belt. Belt removal is required to change the tensioner. Therefore, d
  • Installation instructions included.
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Dayco – Serpentine Belt Tensioner: 1 Piece, Built To Outperform And Outlast OE Parts (Part No.89253)

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

from

$49.49
The Dayco automatic belt tensioner features Dayco’s original, patented flat spring design to provide less operating range variation. It reduces the risk of premature accessory bearing failure due to high tension and lessens the risk of belt noise and slip

Product Features:
  • Endures the toughest conditions while promoting quieter performance and longer life
  • Features a steel pivot tube on specific designs for enhanced stability
  • Built to outperform and outlast competitive OE parts
  • Includes installation instructions
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Gates – FleetRunner« Heavy-Duty Micro-V« Serpentine Drive Belt (Part No.K040378HD)

FleetRunner« Heavy-Duty Micro-V« Serpentine Drive Belt

from

$49.99
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
  • 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)
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Gates – Micro-V« Serpentine Drive Belt (Part No.K040378)

Micro-V« Serpentine Drive Belt

from

$19.99
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.
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Dayco – Poly Rib Belt Serpentine Belt; 37.8 Long, 4 Rib Count (Part No.5040378)

Poly Rib Belt Serpentine Belt; 37.8 Long, 4 Rib Count

from

$38.49
Constructed with aramid reinforced EPDM compounds, the Dayco poly-V serpentine belt delivers  more than just OE quality. Developed through extensive laboratory and road testing, the rib profile in this EPDM belt has been engineered to conform to high mile

Product Features:
  • Provides full coverage for today’s light-duty vehicle market, especially vehicles with troublesome drives
  • Engineered to help address noise issues caused by the belt drive 
  • Capable of handling more extreme temperatures and workloads
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Driveworks – Poly Rib Belt Serpentine Belt; 37.8 Long, 4 Rib Count (Part No.378K4)

Poly Rib Belt Serpentine Belt; 37.8 Long, 4 Rib Count

from

$25.99
The Driveworks 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 ribbed belt has been constructed and engineered to meet the stringent demands of today’s automotive drive systems. The Driveworks ribbed belt delivers long-lasting dependable belt life.

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
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Gates – Premium Molded Coolant Hose (Part No.23184)

Premium Molded Coolant Hose

from

$55.99
Gates Molded Coolant Hose is manufactured to fit specific applications. Similar to OEM specifications. Approved for marine applications.

Product Features:
  • Specifically-engineered materials resist collapse under vacuum
  • Engineered to resist electrochemical degradation, the leading cause of hose failure
  • Pre-shaped to fit and to ensure perfectly sealed conditions
  • EPDM tube: synthetic fiber knit reinforcement: heat-, ozone- and chemical coolant-resistant EPDM cover
  • Meets requirements of SAE 20R4, class D2 and DIN 73411, class A (except for tolerances)
  • Temperature Range: -40 Deg. F to +257 Deg. F (-40 Deg. C to +125 Deg. C)
  • Note: Gates recommends replacing hose clamps each time a new coolant hose is installed
  • Caution: Do not use for fuel or oil transfer applications
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Dayco – Curved Radiator Hoses: EPDM Rubber, Standard Duty, 31" Long, 1.31" Diameter (Part No.E72380)

Curved Radiator Hoses: EPDM Rubber, Standard Duty, 31" Long, 1.31" Diameter

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$64.99
The Dayco curved radiator hose features knitted reinforcement, a protective sleeve and a synthetic EPDM rubber construction for high-strength performance, protection against abrasion and resistance to oil, mud, salt, road debris, ozone and coolants. It can also withstand temperature variations of -40 Deg. F (-40 Deg. C) to +257 Deg. F (+125 Deg. C). The inner base tube is reinforced with knitted rayon for maximum strength and burst resistance for the life of the hose.

Product Features:
  • Meets SAE J20R4, Class D-1 requirements
  • Meets Type EC electro-chemical requirements as specified in SAE J1684, which prevents inner tube deterioration caused by the build-up of static electric charges
  • Provides excellent protection against external elements
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Gates – Straight Heater Hose: EPDM, Direct Fit, 0.625" Inside Diameter (Sold by foot) (Part No.28411)

Straight Heater Hose: EPDM, Direct Fit, 0.625" Inside Diameter (Sold by foot)

from

$1.49
Premium hose constructed for long service life.

Product Features:
  • Good resistance to high temperatures for extended periods of time, which prolongs service life
  • Meets SAE 20R3 Standard Wall Class D-2 requirements
  • Temperature Range: -40 Deg. F to +257 Deg. F (-40 Deg. C to +125 Deg. C)
  • CAUTION: Do not use for fuel or oil transfer applications
  • CAUTION: Do not use for fuel or oil transfer applications
  • PLEASE NOTE: Item is priced and sold by the foot. See store for details.
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Gates – DriveAlign½ Belt Drive Idler/Tensioner Pulley (Part No.38009)

DriveAlign½ Belt Drive Idler/Tensioner Pulley

from

$25.99
Product Features:
  • Steel and thermoplastic construction designed to tight manufacturing tolerances for high durability and quality performance
  • Built to last with a superior resistance to dirt, salt, chemicals and other under-hood contaminants
  • OE-quality fit for virtually every domestic or import vehicle on the road today
  • Bearings meet or exceed OE standards with application-specific speed and load requirements, to withstand high under hood temperatures
  • Premium bearings eliminate bearing noise
  • Mounting hardware included for some popular applications
  • Reliable operation under severe conditions
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Dayco – Serpentine Idler/Tensioner Pulley; Polymer, 76mm Dia., 28.7mm Width, 6 Grooves (Part No.89009)

Serpentine Idler/Tensioner Pulley; Polymer, 76mm Dia., 28.7mm Width, 6 Grooves

from

$24.99
Dayco idler/tensioner pulleys are built with smoother surfaces and tighter dimensional tolerances, which translates to less vibration and longer belt life. In addition to stamped, forged steel and powdered metal pulleys, Dayco also designs ultra-strong plastic pulleys with specially formulated glass-filled polymers that resist wear and tear. Premium lubricated ball bearings and double high temperature seals ensure peak bearing performance, the most critical element of a pulley’s service life.

Product Features:
  • Designed for the majority of automotive vehicle applications on the road today
  • High-quality materials help resist wear and improve belt life
  • Features premium lubricated bearings to extend service life
  • Meets or exceeds OE quality
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Dayco – Serpentine Idler/Tensioner Pulley; Direct Fit, 90 mm Diameter, 30 mm Smooth (Part No.89006)

Serpentine Idler/Tensioner Pulley; Direct Fit, 90 mm Diameter, 30 mm Smooth

from

$30.99
Dayco idler/tensioner pulleys are built with smoother surfaces and tighter dimensional tolerances, which translates to less vibration and longer belt life. In addition to stamped, forged steel and powdered metal pulleys, Dayco also designs ultra-strong pl

Product Features:
  • Designed for the majority of automotive vehicle applications on the road today
  • High-quality materials help resist wear and improve belt life
  • Features premium lubricated bearings to extend service life
  • Meets or exceeds OE quality
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Litens – O.E Quality Idler/Tensioner Pulley: Direct Fit, Steel, 60 mm Diameter (Part No.900367A)

O.E Quality Idler/Tensioner Pulley: Direct Fit, Steel, 60 mm Diameter

from

$33.49
This Litens pulley is supplied by one of the largest original equipment suppliers in the world and meets all form, fit, and performance characteristics of the original equipment part . Like the Original Equipment pulley, the Litens replacement part is constructed of heavy duty steel for long life and trouble free performance. This unique pulley is designed for use on G.M. Air Conditioning tensioners. Litens recommends you consider replacing the entire tensioner (Litens P/N 999034) rather than just the tensioner 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:
  • Manufactured by the world’s largest Original Equipment supplier of accessory drive tensioners and pulleys
  • Heavy Duty Steel Pulley
  • Precision steel stamping with close tolerance ball bearing pocket.
  • Electro-deposited coating (e-coat) for superior corrosion resistance.
  • Running surface designed and engineered for proper belt tracking.
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Litens – O.E Quality Idler/Tensioner Pulley: Direct Fit, Steel, 90 mm Diameter (Part No.900401A)

O.E Quality Idler/Tensioner Pulley: Direct Fit, Steel, 90 mm Diameter

from

$66.99
This Litens pulley is supplied by one of the largest original equipment suppliers in the world and meets all form, fit, and performance characteristics of the original equipment part . Like the G.M. Original Equipment pulley, the Litens replacement part is constructed of heavy duty steel for long life and trouble free performance. This pulley is supplied with a new integrated bolt/dust shield to facilitate installation. Litens is the world’s largest supplier of original equipment (O.E.) power transmission products. At Litens, we design systems that are more efficient, resulting in tangible fuel economy/emissions benefits. Litens holds over 2000 patents and continues to respond to the ever-changing automotive industry by investing heavily in new technology, facilities, and people. 90% of our line is made of products coming from the OE manufacturer, which makes the Litens Tensioning Products portfolio the purest OE tensioning line in the North American aftermarket._

Product Features:
  • Manufactured by one of the world’s largest Original Equipment suppliers of accessory drive tensioners and pulleys
  • Heavy Duty Steel Pulley
  • Pre-assembled pulleys save installation time and ensure that all components are assembled to original specifications for both installation and performance
  • Precision steel stamping with close tolerance ball bearing pocket.
  • Electro-deposited coating (e-coat) for superior corrosion resistance.
  • Running surface designed and engineered for proper belt tracking.
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Dorman – Idler Pulley (Pulley only) (Part No.419-602)

Idler Pulley (Pulley only)

from

$13.49
This accessory drive belt tensioner pulley is designed to match the fit and function of the original pulley on specified applications. Made of quality materials, it is engineered for reliable performance and durability.

Product Features:
  • Direct replacement – this accessory drive belt tensioner pulley is designed to match the fit and function of the original pulley on specified applications
  • Restores functionality – reliable replacement for an original pulley that has failed due to vibration or corrosion
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Litens – O.E Quality Idler/Tensioner Pulley Direct Fit, Thermoplastic, 76 mm Diameter (Part No.900027A)

O.E Quality Idler/Tensioner Pulley Direct Fit, Thermoplastic, 76 mm Diameter

from

$28.99
This pulley is manufactured 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 in Canada using the O.E. specified design and meets all performance and durability requirements. Heavy duty thermoplastic construction for long life and trouble-free performance. 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
  • Heavy Duty Glass Reinforced Polymer Pulley for optimized dimensional control and running surface durability
  • OE-spec sealed ball bearings with synthetic grease and double lip seals for long life
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Dorman – Idler Pulley (Pulley only) (Part No.419-603)

Idler Pulley (Pulley only)

from

$11.49
This accessory drive belt tensioner pulley is designed to match the fit and function of the original pulley on specified applications. Made of quality materials, it is engineered for reliable performance and durability.

Product Features:
  • Direct replacement – this accessory drive belt tensioner pulley is designed to match the fit and function of the original pulley on specified applications
  • Restores functionality – reliable replacement for an original pulley that has failed due to vibration or corrosion
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Dayco – Serpentine Belt Kit; With Belt and Tensioner, 2 Piece Set (Part No.5040378K1)

Serpentine Belt Kit; With Belt and Tensioner, 2 Piece Set

from

$49.49
Dayco believes in a systems approach to maintenance and has a full line of serpentine belt kits that have been designed for the most popular light-duty applications, ensuring that whomever is completing the repair has all the parts needed. Dayco’s kit offers everything to service your front-end accessory drive with OE or equivalent components. This can include a premium tensioner with flat spring technology, durable pulley(s) with permanently lubricated bearings, a Dayco ela (stretch) serpentine belt, and the Dayco serpentine belt that provides extensive flexibility and longer service life, while handling higher workloads and temperatures.

Product Features:
  • Engineered to match OE specifications with unique features that enhance vehicle performance and safety
  • For vehicles that need a highly engineered drive belt and multiple parts for a thorough and proper repair
  • Provides all the parts needed in one box, helping simplify installation
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Helping You Find the Right Belts and Hoses for Your Workhorse W42

You love your W42. So we’ve made it easier than ever to help you find Workhorse W42 Belts and Hoses in our online catalog. Our inventory holds 26 aftermarket and OEM Belts and Hoses for your Workhorse W42, ranging from $1.49 to $92.99.

We offer parts from 5 brands trusted to make quality Belts and Hoses for your Workhorse W42. Before you buy, take some time to read through customer reviews. We currently have 4,732 reviews of Workhorse W42 Belts and Hoses from previous customers. Some of the top rated parts include O.E Quality Idler/Tensioner Pulley: Direct Fit, Steel, 60 mm Diameter with 4.9 stars and Serpentine Belt Tensioner: 1 Piece with 4.6 stars.

Find your W42 Belts and Hoses here, order online, and have your order shipped directly to your home. Prefer to have an in-person look at your Workhorse W42 part to confirm it’s just right? You can find your nearest Advance Auto Parts store and confirm they have the part in stock before heading over.

Top Belts and Hoses Brands for Your Workhorse W42

Our inventory holds Belts and Hoses for your Workhorse W42 from 5 trusted brands. You’ll find OEM and aftermarket parts from brands like Dayco, Litens, and Driveworks, all of which can keep that Workhorse happy.

Top-Rated Dayco Belts and Hoses

Leading Dayco Belts and Hoses

We carry Dayco brand parts for your Workhorse W42 across several catalog categories, including Pulleys and Serpentine and V Belts. Some of our most reviewed Dayco parts include:
Poly Rib Belt Serpentine Belt; 37.8 Long, 4 Rib Count
from $38.49
(288)
Poly Rib Belt Serpentine Belt; 37.8 Long, 4 Rib Count
Serpentine Belts

FAQs for Workhorse W42 Belts and Hoses

What are the most purchased Belts and Hoses for the Workhorse W42?

Out of 26 Belts and Hoses for the Workhorse W42, the most popular in our inventory are:

What are the top-rated Workhorse W42 Belts and Hoses?

Top-rated Belts and Hoses for your Workhorse W42 based on customer reviews/ratings are:
Serpentine Belt Tensioner: 1 Piece
from $58.99
(13)
Serpentine Belt Tensioner: 1 Piece
“Its a little early”
Serpentine Belt Tensioner: 1 Piece
from $92.99
(12)
Serpentine Belt Tensioner: 1 Piece
“works as advertised.”