Part #: 5080957

Dayco 5080957 Serpentine Belt

Main Drive, Fan To Air Conditioning, and Fan, Alternator and Air Conditioning
⚙️ 6 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$53.31Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Ford, F-250 Super Duty and F-350 Super Duty
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Durable Serpentine Belt for Ford F-250 and F-350 Super Duty

The Dayco 5080957 serpentine belt is engineered to meet the demanding requirements of Ford F-250 Super Duty and F-350 Super Duty trucks. Constructed with EPDM and aramid reinforcement, this belt offers reliable performance under a wide range of operating temperatures.

  • Material: EPDM with aramid fiber reinforcement for enhanced durability
  • Top Width: 1.10 inches
  • Effective Length: Approximately 95.7 inches (2430 mm)
  • Outside Circumference: Approximately 96.2 inches (2444 mm)
  • Rib Quantity: 8 ribs with a straight rib profile
  • Cross Section: K-section design for optimal fit and function
  • Operating Temperature Range: -45°C to 212°F (-42.7°C to 100°C)
  • Meets SAE J1459 and SAE J2432 standards

Technical Overview of Dayco 5080957 Serpentine Belt

This serpentine belt is designed specifically for accessory drive belt systems in Ford F-250 Super Duty and F-350 Super Duty models. The EPDM (ethylene propylene diene monomer) material combined with aramid reinforcement provides resistance to heat, wear, and stretching, ensuring consistent power transmission. The 8-rib K-section cross section and straight rib profile optimize grip and reduce slippage on pulleys. Its dimensions, including a top width of 1.10 inches and an effective length near 95.7 inches, align with factory specifications for these truck models.

Applications and Common Issues Addressed

  • Replacement for worn or cracked serpentine belts on Ford F-250 Super Duty and F-350 Super Duty
  • Prevents belt slippage and accessory drive failure
  • Resolves noise issues caused by belt wear or misalignment
  • Maintains proper tension and power delivery to alternator, power steering, and AC compressor
  • Suitable for vehicles operating in extreme temperature conditions

Installation Notes and Tips

Ensure the belt routing matches the vehicle’s accessory drive diagram before installation. Inspect pulleys and tensioners for wear or damage to avoid premature belt failure. Use proper tensioning tools to achieve manufacturer-recommended belt tension. Regularly check belt condition during routine maintenance intervals.

Quality Assurance and Standards Compliance

The Dayco 5080957 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 fibers, this belt is designed to withstand temperature extremes from -45°C to 212°F. While no specific warranty information is provided, Dayco products are generally recognized for consistent quality in automotive belt applications.

BrandDayco
Part Number5080957
MaterialEpdm, aramid reinforced
Top Width1.10
ColorBlack
Effective Length2430.02
Effective Length95.67
Outside Circumference2444.25
Outside Circumference96.23
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 6 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2010FordF-250 Super Duty6.4LV8Main DriveCompatible with vehicles equipped with dual alternators.
2010FordF-350 Super Duty6.4LV8Main DriveCompatible with vehicles equipped with dual alternators.
2009FordF-250 Super Duty6.4LV8Main DriveCompatible with vehicles equipped with dual alternators.
2009FordF-350 Super Duty6.4LV8Main DriveCompatible with vehicles equipped with dual alternators.
2008FordF-250 Super Duty6.4LV8Main DriveCompatible with vehicles equipped with dual alternators.
2008FordF-350 Super Duty6.4LV8Main 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:

8K956K080956HD

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