HomeBelts and Cooling > Accessory Drive Belt System ComponentsDayco 5070370 Serpentine Belt - Fan and Alternator
Part #: 5070370

Dayco 5070370 Serpentine Belt - Fan and Alternator

Fan and Alternator
⚙️ 8 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Toyota, Celica and Cressida
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Durable Serpentine Belt for Toyota Celica and Cressida

The Dayco 5070370 serpentine belt is engineered to provide reliable performance for Toyota Celica and Cressida models. Constructed with EPDM and aramid reinforcement, this belt offers enhanced durability and resistance to wear under various operating conditions.

  • Material: EPDM with aramid fiber reinforcement for strength and flexibility
  • Top Width: 0.96 inches
  • Effective Length: Approximately 37 inches (940.06 mm)
  • Outside Circumference: Approximately 37.67 inches (956.82 mm)
  • Rib Quantity: 7 ribs with a straight rib profile
  • Cross Section: K-section design for optimal fit and performance
  • 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 5070370 Serpentine Belt

This serpentine belt is designed with a K-section cross section and seven straight ribs, ensuring consistent contact with pulleys and efficient power transmission. The EPDM material combined with aramid reinforcement enhances resistance to heat, ozone, and wear, making it suitable for the demanding environment of Toyota Celica and Cressida accessory drive systems. The belt’s dimensions, including a top width of 0.96 inches and an effective length near 37 inches, align with factory specifications for these vehicles.

Compatible Vehicles and Applications

The Dayco 5070370 serpentine belt is compatible with the following Toyota models:

  • Toyota Celica
  • Toyota Cressida

This belt is intended for use in the accessory drive belt system, helping to drive components such as the alternator, power steering pump, and air conditioning compressor.

Common Issues Addressed by This Serpentine Belt

  • Wear and cracking due to heat and age
  • Slipping or squealing noises from worn belts
  • Loss of power transmission to accessory components
  • Reduced belt flexibility causing premature failure
  • Incompatibility with OEM specifications leading to improper fit

Installation Notes and Tips

Ensure the belt routing matches the vehicle’s belt diagram before installation. Inspect pulleys and tensioners for wear or damage to prevent premature belt failure. Proper tension adjustment is critical to maintain belt performance and longevity. Use the Dayco 5070370 part number to verify compatibility with your Toyota Celica or Cressida model year and engine configuration.

Quality Assurance and Standards Compliance

The Dayco 5070370 serpentine belt meets SAE J1459 and SAE J2432 standards, ensuring it adheres to industry requirements for durability and performance. Manufactured with reinforced EPDM material, this belt is designed to withstand operating temperatures from -45°C to 212°F, providing reliable service in a range of driving conditions.

BrandDayco
Part Number5070370
MaterialEpdm, aramid reinforced
Top Width.96
ColorBlack
Effective Length37.01
Effective Length940.06
Outside Circumference37.67
Outside Circumference956.82
Rib Quantity7
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 8 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1988ToyotaCressidaFan and Alternator
1987ToyotaCressidaFan and Alternator
1986ToyotaCelica2.8LL6Fan and Alternator
1986ToyotaCressidaFan and Alternator
1985ToyotaCelica2.8LL6Fan and Alternator
1985ToyotaCressidaFan and Alternator
1984ToyotaCelica2.8LL6Fan and Alternator
1984ToyotaCressidaFan and Alternator

* 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:

7K370

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