Hayden 5020 Accessory Drive Belt Idler Pulley

Hayden 5020 Accessory Drive Belt Idler Pulley

The Hayden 5020 is a black plastic accessory drive belt idler pulley built for serpentine belt systems. It is a smooth back idler pulley with a 3.000-inch outside diameter and a 0.875-inch belt width, made to meet or exceed OEM requirements.

Use this Hayden pulley when servicing a serpentine belt system on select Chevrolet Cavalier, Pontiac Sunfire, Oldsmobile Alero, Pontiac Grand Am, Chevrolet Malibu, Ford Tempo, and Mercury Topaz applications. The Hayden Pulley line focuses on direct-fit belt drive components for accessory drive service, and the 5020 follows that OE-style approach.

Key Features

• Accessory drive belt idler pulley for serpentine belt systems
• Black plastic construction
• Smooth groove design for back-idler use
• 3.000-inch outside diameter
• 0.875-inch belt width / 22.225 mm belt width
• 0.6875-inch inside diameter / 17.463 mm bore diameter
• Single mounting hole design
• Meets or exceeds OEM requirements
• Cross-references Gates 38032 and Dayco 89037 for the same application

Detailed Description

Hayden 5020 is an idler / tensioner pulley designed for accessory drive belt service where a smooth back idler is required. Its 76.200 mm outside diameter and 22.3 mm pulley width support proper serpentine belt routing, while the plastic construction keeps the design lightweight and consistent with OE-style belt drive hardware. This part number is used across multiple GM and Ford passenger car applications, including 1999-2002 Chevrolet Cavalier, 1999-2002 Pontiac Sunfire, 2000-2001 Oldsmobile Alero, 2000-2001 Pontiac Grand Am, 1999 Chevrolet Malibu, and 1992-1994 Ford Tempo and Mercury Topaz models.

Hayden 5020 is a direct replacement choice for drivers searching for a serpentine belt idler pulley for Chevrolet Cavalier, Pontiac Sunfire, or Ford Tempo accessory drive repair. It is also listed under the Hayden Pulley line as a back idler pulley for OE-style belt system service.

What It Helps Address

• Serpentine belt noise caused by a worn idler pulley
• Belt tracking issues from a rough or damaged pulley surface
• Accessory drive vibration related to pulley wear
• Visible pulley cracking or surface deterioration
• Loss of proper belt routing in the accessory drive system

Installation Notes and Tips

• Verify pulley diameter, belt width, and bore dimensions before installation.
• Confirm vehicle fitment by year, make, model, and engine/accessory configuration.
• Mounting hardware is not included.
• Inspect the serpentine belt, tensioner, and adjacent pulleys during service.
• For Ford Tempo and Mercury Topaz applications, confirm air conditioning or factory air configuration as listed in the fitment data.

Quality Assurance

Hayden 5020 is specified as meeting or exceeding OEM requirements for accessory drive belt service. It cross-references Continental 49010 and Gates 38032 for the same application, supporting parts lookup and replacement matching across common aftermarket catalogs.

Fits 1999-2002 Chevrolet Cavalier, pulley; 1999-2002 Pontiac Sunfire, pulley; 2000-2001 Oldsmobile Alero, pulley; 2000-2001 Pontiac Grand Am, pulley; 1999 Chevrolet Malibu, pulley; 1992-1994 Ford Tempo, pulley; and 1992-1994 Mercury Topaz, pulley.