Part #: 5100864

Dayco 5100864 Serpentine Belt

Alternator, Accessory Drive, Main Drive, and Alternator and Air Conditioning
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Durable Dayco Serpentine Belt for Reliable Engine Performance

The Dayco 5100864 serpentine belt is engineered to provide consistent power transmission for accessory drive systems. Constructed with EPDM and aramid reinforcement, this belt offers enhanced durability and resistance to wear, suitable for various vehicle applications including popular makes and models requiring a 10-rib serpentine belt.

  • Material: EPDM with aramid fiber reinforcement for strength and flexibility
  • Top Width: 1.38 inches for precise fitment
  • Effective Length: Approximately 86.42 inches (2195.07 mm)
  • Outside Circumference: Approximately 86.98 inches (2209.30 mm)
  • Rib Quantity: 10 ribs with a straight rib profile
  • Cross Section: K-section design for optimal grip and alignment
  • Operating Temperature Range: -45°C to 212°F (-42.7°F to 100°C)
  • Meets SAE J1459 and SAE J2432 standards for quality and performance

Technical Overview of Dayco 5100864 Serpentine Belt

This serpentine belt features a K-section cross section with 10 straight ribs, designed to maintain consistent contact with pulleys and reduce slippage. The EPDM material combined with aramid reinforcement enhances tensile strength and resistance to heat, ozone, and wear. Its operating temperature range from -45°C to 100°C (-42.7°F to 212°F) ensures reliable performance under various environmental conditions. The belt’s dimensions, including a top width of 1.38 inches and an outside circumference near 87 inches, make it compatible with specific accessory drive systems found in many vehicles.

Compatible Vehicles and Common Applications

  • Compatible with select Ford, Chevrolet, and Dodge models requiring a 10-rib serpentine belt
  • Designed for accessory drive belt systems including alternator, power steering, and air conditioning components
  • Suitable replacement for vehicles experiencing belt wear, cracking, or stretching
  • Ideal for maintenance and repair of serpentine belt systems in mid-size trucks and SUVs

Installation Notes and Tips

  • Ensure proper tensioning according to vehicle manufacturer specifications to avoid premature wear
  • Inspect pulleys and tensioners for damage or misalignment before installation
  • Use a belt routing diagram specific to the vehicle make and model to confirm correct installation path
  • Replace serpentine belt at first signs of cracking, glazing, or rib separation to maintain system efficiency

Quality Assurance and Standards Compliance

The Dayco 5100864 serpentine belt complies with SAE J1459 and SAE J2432 standards, ensuring it meets industry requirements for durability and performance. Manufactured with high-quality EPDM and aramid materials, this belt is designed to withstand demanding operating conditions. While no specific warranty information is provided, Dayco products are generally recognized for consistent quality in automotive belt applications.

BrandDayco
Part Number5100864
MaterialEpdm, aramid reinforced
Top Width1.38
ColorBlack
Effective Length2195.07
Effective Length86.42
Outside Circumference2209.30
Outside Circumference86.98
Rib Quantity10
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:

4100865

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