Home› Belts and Cooling > Accessory Drive Belt System Components› Dayco 5061203 Serpentine Belt - Fan, Alternator and Power Steering or Main Drive
Dayco 5061203 Serpentine Belt - Fan, Alternator and Power Steering or Main DriveOE Quality 60-Day Returns
Part #: 5061203

Dayco 5061203 Serpentine Belt - Fan, Alternator and Power Steering or Main Drive

Fan, Alternator and Power Steering and Main Drive
61 vehicles fit this part
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Fitment: Chevrolet and GMC, C1500, C1500 Suburban, C2500, C2500 Suburban, C3500, K1500, K1500 Suburban, K2500, K2500 Suburban, K3500, Tahoe, and Yukon
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Dayco 5061203 Serpentine Belt Overview

The Dayco 5061203 serpentine belt is a main drive belt built for accessory drive systems that require a 6-rib K-section profile. It uses EPDM with aramid reinforcement for stable operation across a wide temperature range, making it a direct replacement choice for select Chevrolet and GMC trucks and SUVs with dual alternators.

  • Part number: 5061203
  • EPDM construction with aramid reinforcement for durability
  • 6-rib, K-section design with straight rib profile
  • Black belt with .82 top width
  • Effective length: 120.28 in. / 3055.12 mm
  • Outside circumference: 120.84 in. / 3069.34 mm
  • Operating temperature range: -45°F to 212°F
  • Built to SAE J1459 and SAE J2432 standards

Fitment Details

Compatible With 1996-2000 Chevrolet C2500, Main Drive, dual alternators; 1996-2000 Chevrolet C3500, Main Drive, dual alternators; 1996-2000 Chevrolet K2500, Main Drive, dual alternators; 1996-2000 Chevrolet K3500, Main Drive, dual alternators; 1996-2000 GMC C2500, Main Drive, dual alternators; 1996-2000 GMC C3500, Main Drive, dual alternators; 1996-2000 GMC K2500, Main Drive, dual alternators; 1996-2000 GMC K3500, Main Drive, dual alternators; 1996-1999 Chevrolet Tahoe, Main Drive, dual alternators; 1996-1998 Chevrolet C1500, Main Drive, dual alternators; 1996-1998 Chevrolet K1500, Main Drive, dual alternators; 1996-1998 GMC K1500, Main Drive, dual alternators; 1996-1997 GMC C1500, Main Drive, dual alternators; 1996-1997 GMC Yukon, Main Drive, dual alternators; 1996 Chevrolet C1500 Suburban, Main Drive, dual alternators; 1996 Chevrolet C2500 Suburban, Main Drive, dual alternators; 1996 Chevrolet K1500 Suburban, Main Drive, dual alternators; 1996 Chevrolet K2500 Suburban, Main Drive, dual alternators.

Detailed Description

Dayco 5061203 is a serpentine belt for accessory drive systems that need consistent grip and dimensional stability. The EPDM rubber compound is paired with aramid reinforcement to support belt strength, while the straight rib profile and 6-rib layout help maintain proper contact in the pulley system. This belt is a strong match for Chevrolet C1500, Chevrolet Tahoe, and GMC Yukon applications listed with dual alternators, as well as heavy-duty C/K series trucks and Suburban models from the mid-to-late 1990s.

This part cross-references Gates K061203 and ACDelco 6K1203 for the same application.

Common Problems This Belt Can Address

  • Squealing or chirping from a worn accessory drive belt
  • Cracking, glazing, or rib wear on the existing serpentine belt
  • Loss of belt tension or inconsistent accessory drive performance
  • Charging issues related to a slipping belt on dual alternator setups
  • Noise or vibration from an aging main drive belt

Installation Notes and Tips

Verify the belt routing against the vehicle’s accessory drive layout before installation. Confirm the application uses dual alternators, since the listed fitment is specific to that configuration. Inspect pulleys, tensioners, and idlers for wear before installing the new belt, and replace any damaged components that could affect belt tracking.

Quality Assurance

Dayco manufactures this belt to SAE J1459 and SAE J2432 standards, with EPDM and aramid reinforcement selected for demanding accessory drive service. The 5061203 is specified for select Chevrolet and GMC main drive applications, including C/K series trucks, Tahoe, Suburban, and Yukon models with dual alternators.

BrandDayco
Part Number5061203
MaterialEpdm, aramid reinforced
Top Width.82
ColorBlack
Effective Length120.28
Effective Length3055.12
Outside Circumference120.84
Outside Circumference3069.34
Rib Quantity6
Cross SectionK-section
Maximum Operating Temperature100
Maximum Operating Temperature212
Minimum Operating Temperature-42.7
Minimum Operating Temperature-45
Rib DepthStandard
Rib ProfileStraight rib
StandardsSae j1459, sae j2432

This part fits 61 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2000ChevroletC25006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
2000ChevroletC35006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
2000ChevroletK25006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
2000ChevroletK35006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
2000GMCC25006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
2000GMCC35006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
2000GMCK25006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
2000GMCK35006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1999ChevroletC25006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1999ChevroletC35006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1999ChevroletK25006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1999ChevroletK35006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1999ChevroletTahoe6.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1999GMCC25006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1999GMCC35006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1999GMCK25006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1999GMCK35006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1998ChevroletC15006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1998ChevroletC25006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1998ChevroletC35006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1998ChevroletK15006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1998ChevroletK25006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1998ChevroletK35006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1998ChevroletTahoe6.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1998GMCC25006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1998GMCC35006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1998GMCK15006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1998GMCK25006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1998GMCK35006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1997ChevroletC15006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1997ChevroletC25006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1997ChevroletC35006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1997ChevroletK15006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1997ChevroletK25006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1997ChevroletK35006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1997ChevroletTahoe6.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1997GMCC15006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1997GMCC25006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1997GMCC35006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1997GMCK15006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1997GMCK25006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1997GMCK35006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1997GMCYukon6.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1996ChevroletC15006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1996ChevroletC1500 Suburban6.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1996ChevroletC25006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1996ChevroletC2500 Suburban6.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1996ChevroletC35006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1996ChevroletK15006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1996ChevroletK1500 Suburban6.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1996ChevroletK25006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1996ChevroletK2500 Suburban6.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1996ChevroletK35006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1996ChevroletTahoe6.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1996GMCC15006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1996GMCC25006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1996GMCC35006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1996GMCK15006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1996GMCK25006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1996GMCK35006.5LV8Main DriveCompatible with vehicles equipped with dual alternators.
1996GMCYukon6.5LV8Main DriveCompatible with vehicles equipped with dual alternators.

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

6K1203

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.

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