Dayco 5120910 | Serpentine Belt

Part Number
5120910
Serpentine Belt

Fits: 03 Peterbilt 378, 03 Peterbilt 379, 04-07 International 9400i SBA, 05-08 International 9200i SBA, 08-10 Kenworth W900, 08-18 Peterbilt 367, 08-15 Peterbilt 388, 08-18 Peterbilt 389, 09-10 International 5600i, 12-16 Kenworth W900, 10 Peterbilt 387, 11-12 Peterbilt 587, 14-17 International 9900i, 18 Kenworth T800

Special Price $51.43 Regular Price $60.51
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In stock
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Estimated Ship Date: 1 Business Day or Less
The Dayco® Poly Rib® Belt is designed for power transmission on heavy duty multiple-accessory drives. This Poly Rib belt is the latest version of the revolutionary multi-ribbed belt first developed by Dayco® for the 1979 Ford® Mustang®. The Dayco® Poly Rib® Belt is manufactured from an extreme temperature EPDM rubber and features a construction that uses a highly fiber loaded compound to maximize belt life and load carrying requirements while minimizing pulley misalignment noise. This belt offers excellent resistance to high under hood temperatures and ozone contamination. In addition, specially formulated treated cord insures length and tension stability on heavy duty diesel engine drives for the life of the belt. The Dayco® Poly Rib® Belt meets or exceeds SAE J1459 and SAE J2432 specifications.


BRAND: Dayco




FEATURES:


  • POLY RIB BELT, DAYCO


SPECIFICS:


38112
ColorBlack
Cross SectionK-Section
Effective Length91.00
Effective Length2311.40
MaterialEPDM, Aramid Reinforced
Maximum Operating Temperature212
Maximum Operating Temperature100
Minimum Operating Temperature-42.7
Minimum Operating Temperature-45
Outside Circumference2328.17
Outside Circumference91.66
Rib DepthStandard
Rib ProfileStraight Rib
StandardsSAE J1459, SAE J2432
Top Width1.66



DOWNLOADS:




INTERCHANGE:


  • Gates: K120910HD
  • Dynacraft: D84-1000-6122310
  • NAPA: 25-120911HD
  • CARQUEST: K120910HD
  • CARQUEST: K120911
  • Dynacraft: D84-1000-31222315
  • Navistar: 3565410-C3
  • CARQUEST: K120911HD
  • Dynacraft: D84-1000-1122310
  • ACDelco: K120910HD
  • Gates: K120911HD
  • Dynacraft: D1108-5210
  • NAPA: 25-120911
  • Gates: K120911
  • Cummins: 2893585
  • Dynacraft: D84-1000-3122315
  • Cummins: 12PK2310
  • ACDelco: 12K911
  • ACDelco: K120911HD
  • NAPA: 25-120910HD
  • Goodyear: 4120910

APPLICATIONS:


  • 2011-2013 Peterbilt 389 - Position: Fan and Alternator
    • 91 In. Belt
  • 2011-2012 Peterbilt 587 - Position: Fan and Alternator
    • 91 In. Belt
  • 2008-2010 Peterbilt 389 - Position: Fan and Alternator
  • 2003-2003 Peterbilt 379 - Position: Fan and Alternator
  • 2008-2010 Kenworth W900 - Position: Fan and Alternator
  • 2005-2008 International 9200i SBA - Position: Fan and Alternator
  • 2011-2013 Peterbilt 388 - Position: Fan and Alternator
    • 91 In. Belt
  • 2014-2015 Peterbilt 388 - Position: Fan and Alternator
  • 2018-2018 Kenworth T800 - Position: Fan and Alternator
  • 2013-2016 Kenworth W900 - Position: Fan and Alternator
  • 2012-2012 Kenworth W900 - Position: Fan and Alternator
    • 12 Rib Belt
  • 2010-2010 Peterbilt 387 - Position: Fan and Alternator
    • 91 In. Belt
  • 2008-2010 Peterbilt 388 - Position: Fan and Alternator
  • 2004-2007 International 9400i SBA - Position: Fan and Alternator
  • 2014-2018 Peterbilt 389 - Position: Fan and Alternator
  • 2003-2003 Peterbilt 378 - Position: Fan and Alternator
  • 2008-2018 Peterbilt 367 - Position: Fan and Alternator
    • 91 In. Belt
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.
Please, mind that only logged in users can submit questions

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