Dayco 5040571 Serpentine Belt - Fan and Power Steering or Power Steering and Air Conditioning

Dayco 5040571 Serpentine Belt for Ford Transit

The Dayco 5040571 serpentine belt is a 4-rib accessory drive belt built for Ford Transit vans with power steering and air conditioning or fan and power steering applications, depending on model year. It uses EPDM construction with aramid reinforcement to support consistent belt tracking and durable operation across a wide temperature range.

Key Features

• EPDM, aramid reinforced construction for accessory drive durability
• 4-rib, K-section belt profile with straight rib design
• Black finish with a .54 in top width
• Effective length: 57.086 in (1449.99 mm)
• Outside circumference: 57.645 in (1464.19 mm)
• Operating temperature range: -45°F to 212°F
• Built to SAE J1459 and SAE J2432 standards

Detailed Description

Dayco 5040571 is a serpentine belt for Ford Transit-150, Transit-250, Transit-350, and Transit-350 HD models. It is listed for 2015 Transit vans in fan and power steering applications, and for 2016-2023 Transit vans in power steering and air conditioning applications. The belt’s EPDM rubber compound and aramid reinforcement are specified to handle accessory drive loads while maintaining stable rib engagement in everyday service. If you are replacing a worn Ford Transit serpentine belt, Dayco 5040571 provides the correct 4-rib configuration and length for the confirmed applications.

This part cross-references no listed aftermarket part numbers in the provided data.

What It Helps Address

• Squealing or chirping from a worn accessory drive belt
• Cracking, glazing, or rib wear on the existing belt
• Loss of proper drive to power steering or air conditioning components
• Belt tracking issues caused by age or heat cycling
• Service replacement for a Ford Transit serpentine belt at the correct length and rib count

Installation Notes and Tips

Verify the vehicle’s year, model, and accessory drive configuration before installation. This belt is listed for 2015 Ford Transit-150, Transit-250, Transit-350, and Transit-350 HD with fan and power steering, and for 2016-2023 Ford Transit-150, Transit-250, Transit-350, and Transit-350 HD with power steering and air conditioning. Inspect pulleys, tensioner condition, and belt routing before installing the new belt to confirm proper alignment and fit.

Quality Assurance

Dayco manufactures accessory drive components to SAE J1459 and SAE J2432 standards. The 5040571 serpentine belt is specified with EPDM and aramid reinforcement for durable service in the listed Ford Transit applications.