Part #: 5080685

Dayco 5080685 Serpentine Belt

Fan, Alternator and Water Pump, Fan and Alternator, Alternator, Alternator and Water Pump, Accessory Drive, and Main Drive
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Durable Dayco Serpentine Belt for Reliable Engine Performance

The Dayco 5080685 serpentine belt is engineered to provide consistent power transmission for accessory drive systems in various vehicle makes and models. Constructed with EPDM and aramid reinforcement, this belt offers enhanced durability and resistance to wear under a wide range of operating temperatures.

  • Material: EPDM with aramid fiber reinforcement for strength and longevity
  • Top Width: 1.10 inches ensuring proper fit and tension
  • Effective Length: Approximately 68.5 inches (1739.90 mm) for precise compatibility
  • Rib Quantity: 8 ribs with a straight rib profile for smooth power transfer
  • Cross Section: K-section design optimized for accessory drive systems
  • Operating Temperature Range: From -45°C to 212°F (-42.7°C to 100°C) suitable for diverse climates
  • Meets SAE J1459 and SAE J2432 standards for quality and performance

Technical Overview of Dayco 5080685 Serpentine Belt

This serpentine belt features a black EPDM rubber compound reinforced with aramid fibers, which enhances tensile strength and resistance to heat and abrasion. The 8-rib K-section design ensures efficient power delivery to engine accessories such as the alternator, power steering pump, and air conditioning compressor. With an outside circumference of approximately 69.13 inches (1755.91 mm), the belt is designed to maintain optimal tension and reduce slippage during operation.

Compatible Vehicles and Common Applications

The Dayco 5080685 serpentine belt is compatible with a range of automotive makes and models requiring an 8-rib K-section belt with a top width of 1.10 inches and an effective length near 68.5 inches. It is commonly used in accessory drive belt systems for vehicles that demand reliable performance under varying temperature conditions.

  • Replaces worn or cracked serpentine belts causing squealing noises
  • Addresses belt slippage affecting alternator or power steering function
  • Prevents overheating issues related to cooling system belt failure
  • Solves premature belt wear due to improper material or design

Installation Notes and Tips

Ensure the serpentine belt routing matches the vehicle’s belt diagram before installation. Check pulleys and tensioners for wear or damage to avoid premature belt failure. Proper tension adjustment is critical to maintain belt life and accessory performance. Use appropriate tools to relieve tension and avoid damaging the belt during installation.

Quality Assurance and Standards Compliance

The Dayco 5080685 serpentine belt complies with SAE J1459 and SAE J2432 standards, ensuring it meets industry requirements for durability and performance. Manufactured with EPDM and aramid reinforcement, this belt is designed to withstand operating temperatures from -45°C to 212°F, providing reliable service in diverse environments.

BrandDayco
Part Number5080685
MaterialEpdm, aramid reinforced
Top Width1.10
ColorBlack
Effective Length1739.90
Effective Length68.50
Outside Circumference1755.91
Outside Circumference69.13
Rib Quantity8
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 0 vehicles. Search below:

YearMakeModelPositionNotes

* 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:

8K685K080685HD

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