Dayco 5081025 Serpentine Belt

Part Number
Serpentine Belt

Fits: 03-05 Peterbilt 362, 04-07 Peterbilt 378, 04-07 Peterbilt 379, 12-15 Freightliner 108SD, 13 Freightliner M2 106, 13 Freightliner M2 112

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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




Cross SectionK-Section
Effective Length2603.50
Effective Length102.50
MaterialEPDM, Aramid Reinforced
Maximum Operating Temperature212
Maximum Operating Temperature100
Minimum Operating Temperature-42.7
Minimum Operating Temperature-45
Outside Circumference103.16
Outside Circumference2620.27
Rib DepthStandard
Rib ProfileStraight Rib
StandardsSAE J1459, SAE J2432
Top Width1.10

102 1/2 In. Belt



  • Freightliner Trucks: 01-32241-605
  • Dynacraft: D1108-5873
  • John Deere: R115935
  • Dynacraft: D84-1000-3082600
  • NAPA: 25-081023
  • Gates: K081023
  • CARQUEST: K081023HD
  • ACDelco: 8K1023
  • Gates: K081025HD
  • John Deere: R135614
  • Goodyear: 4081024
  • CARQUEST: K081025HD
  • John Deere: R501353
  • CARQUEST: K081023
  • AGCO: AG610609
  • John Deere: T311958
  • Gates: K081023HD
  • Dynacraft: D84-1000-6082600
  • Daimler: A906 997 0992
  • Dynacraft: 4081024RPDYC
  • ACDelco: K081023HD


  • 2012-2015 Freightliner 108SD - Position: Main Drive
  • 2004-2007 Peterbilt 379 - Position: Main Drive
  • 2013-2013 Freightliner M2 112 - Position: Main Drive
  • 2004-2007 Peterbilt 378 - Position: Main Drive
  • 2013-2013 Freightliner M2 106 - Position: Main Drive
  • 2005-2005 Peterbilt 362 - Position: Main Drive
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