Gates K120842 | Serpentine Belt

Part Number
Micro-V Serpentine Drive Belt

Fits: 03-20 Volvo VNL, 06-10 Volvo VT, 07 Volvo VNM, 15-16 Volvo VNL 430, 15-16 Volvo VNL 630, 15-16 Volvo VNL 670, 16-20 Volvo VNL 300, 17-20 Volvo VNL 400, 17-20 Volvo VNL 740, 17-20 Volvo VNL 760, 17-20 Volvo VNL 860, 20 International LT, 20 International LT625

Special Price $62.89 Regular Price $73.99
In stock
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Estimated Ship Date: 1 Business Day or Less

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.

Micro-V belts provide peak operating performance while delivering the highest value available.

  • Meets or exceeds all specifications from the Original Equipment Manufacturer.
  • Designed for small diameter pulleys, backside idlers, and for use with (or without) automatic tensioners.
  • Special belt constructions eliminate belt noise, reduce tension loss, and solve problem drive applications.
  • Utilizes advanced materials like Aramid Fiber found in bullet-proof vests and crack and heat resistant EPDM materials.
  • Unique form grinding of each individual belt assures precise dimensional control.
  • Meets or exceeds SAE J1459, SAE J2432, and SAE J1596 specifications.

Gates - Driven By Possibility

BRAND: Gates


  • Serpentine Drive Belt
  • Micro-V® Serpentine Drive Belt
  • Micro-V Serpentine Drive Belt
  • 2018-10 Volvo, VN Series, Cummins ISX15 Diesel, Fan


Belt MaterialEPDM
Cord MaterialPolyester
OE Comparison RatingOE Performance
Outside Circumference84.799
Outside Circumference2154
Rib Quantity12
Top Width1.647
Top Width42
TypeAutomotive V-Ribbed Belt (Standard)

W/Clean Air Pkg.



  • ContiTech: 4120842X
  • Continental Belt: 842K12MK
  • Cummins: 3100402
  • Dayco: 202001
  • Carquest: K120842HD
  • ACDelco: 12K842
  • ACDelco: K120842HD
  • CARQUEST: K120842
  • Dayco: 843K12
  • Size Designation: 12PK2140
  • Metric: 12PK2140
  • Goodyear: 4120842
  • Cummins: 3682891
  • Dayco: 5120843
  • Alliance Truck Parts: GT4120842
  • Caterpillar: 3508747
  • Continental Belt: 4120842
  • Volvo Cars: 21189554
  • Dayco: 201464
  • HD Value: 12K842HDV
  • Bando: 842K12
  • International Harvester (IHC): 4120384C1
  • NAPA Belts/Hose: 25-120842
  • Volvo Cars: 20481362
  • NAPA Belts/Hose: 25-120842HD


  • 2016-2019 Volvo VNL 300 - Position: Fan
  • 2017-2019 Volvo VNL 400 - Position: Fan
  • 2009-2009 Volvo VNL - Position: Fan, Air Conditioning, Alternator and Water Pump
  • 2006-2010 Volvo VT - Position: Fan and Alternator
  • 2020-2020 International LT625 - Position: Fan
  • 2015-2016 Volvo VNL 430 - Position: Fan
  • 2017-2019 Volvo VNL 860 - Position: Fan
  • 2010-2019 Volvo VNL - Position: Fan
  • 2017-2019 Volvo VNL 740 - Position: Fan
  • 2020-2020 International LT - Position: Fan
  • 2020-2020 Volvo VNL 300 - Position: Fan and Alternator
  • 2004-2006 Volvo VNL - Position: Fan and Alternator
  • 2015-2016 Volvo VNL 630 - Position: Fan
  • 2017-2019 Volvo VNL 760 - Position: Fan
  • 2020-2020 Volvo VNL 740 - Position: Fan and Alternator
  • 2020-2020 Volvo VNL 760 - Position: Fan and Alternator
  • 2020-2020 Volvo VNL 860 - Position: Fan and Alternator
  • 2020-2020 Volvo VNL - Position: Fan and Alternator
  • 2003-2003 Volvo VNL - Position: Fan
  • 2015-2016 Volvo VNL 670 - Position: Fan
  • 2020-2020 Volvo VNL 400 - Position: Fan and Alternator
  • 2007-2008 Volvo VNL - Position: Fan
  • 2007-2007 Volvo VNM - Position: Fan
Customer Questions
Can a serpentine belt cause smoke?
Yes, a serpentine belt can cause smoke. A serpentine belt is an essential component of a vehicle's engine system. It drives various accessories such as the alternator, power steering pump, water pump, and air conditioning compressor. If the serpentine belt becomes worn, damaged, or misaligned, it can cause friction and generate smoke.
Why is my serpentine belt squealing?
The serpentine belt can squeal due to various reasons, including tension issues, worn-out belt, or a problem with the belt's pulleys.
Is my serpentine belt too tight?
If your serpentine belt is causing issues like excessive noise or accelerated wear on the pulleys, it may indicate that the belt is too tight.
Why did my serpentine belt come off?
Serpentine belts can come off due to factors such as belt wear, improper tension, misaligned pulleys, or a faulty tensioner.
What types of automotive products does Gates offer?
Gates offers a wide range of automotive products, including belts, hoses, tensioners, and more.
I'm looking for a replacement belt for my vehicle. Can you help me understand the different options available from Gates and recommend the best one for my specific make and model?
Yes, Gates offers a range of replacement belts for various applications. To find the best one for your specific make and model, it is recommended to consult the Gates website or reach out to their customer support.
Are there any specific maintenance for Gates products?
Yes, there are specific maintenance and installation guidelines to follow when using Gates products to ensure optimal performance and longevity.
Please, mind that only logged in users can submit questions

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