Hayden 5003 Accessory Drive Belt Idler Pulley - Air Conditioning or Power Steering

Accessory Drive Belt Idler Pulley for Toyota and Geo

The Hayden 5003 is an accessory drive belt idler pulley built for serpentine belt systems. It uses a steel construction and a 4-groove design to support smooth belt routing in applications such as Toyota Tacoma, Toyota Tundra, Toyota 4Runner, Toyota Corolla, and Geo Prizm.

Hayden Pulley 5003 is an OE-style replacement that meets or exceeds OEM requirements and is sized for common Toyota and Geo accessory drive belt applications. It is a direct-fit pulley for air conditioning, power steering, and other pulley positions listed below.

Key Features

• Steel pulley construction for accessory drive belt service
• 4-groove serpentine belt design
• Outside diameter: 2.750 in. (69.850 mm)
• Pulley width: 0.8 in. (20.3 mm)
• Inside diameter: 0.46875 in. (11.906 mm)
• Bore diameter: 0.472 in.
• Meets or exceeds OEM specifications
• Idler / tensioner pulley style for serpentine belt routing

Detailed Description

The Hayden 5003 accessory drive belt idler pulley is engineered for vehicles that use a serpentine belt system and a 4-groove pulley profile. Its steel body and OE-matching dimensions help maintain proper belt tracking in applications across Toyota Tacoma, Toyota Tundra, Toyota 4Runner, Toyota T100, Toyota Tercel, Toyota Celica, Toyota Corolla, Toyota Previa, Toyota MR2, Toyota Supra, and Geo Prizm models. This part number 5003 is also listed for select Geo Metro, Chevrolet Metro, Mazda 929, and Acura Legend applications.

Hayden Pulley is a product line focused on pulley components for accessory drive belt systems. For buyers searching for a Hayden 5003 idler pulley, this part provides a direct replacement option for common Toyota and Geo belt-drive service needs.

This part cross-references Dayco 89038 and Four Seasons 45003 for the same application.

What It Helps Address

• Noise from a worn or rough idler pulley bearing surface
• Belt misalignment in serpentine drive systems
• Visible pulley wear, wobble, or uneven belt tracking
• Accessory drive belt routing issues on Toyota and Geo applications
• Loss of smooth operation in air conditioning or power steering pulley positions

Installation Notes and Tips

• Verify pulley diameter, groove count, and bore dimensions before installation.
• Confirm the vehicle position listed in the fitment data, including air conditioning, power steering, or N/A applications.
• Inspect the serpentine belt for glazing, cracking, or edge wear before reassembly.
• Mounting hardware is not included.
• Use the correct torque and alignment procedure for the specific vehicle application.

Quality Assurance

Hayden 5003 is listed as meeting or exceeding OEM requirements, making it a direct replacement choice for accessory drive belt service on confirmed Toyota and Geo applications.

• Fits 1995-2004 Toyota Tacoma, Air Conditioning
• Fits 1995-2004 Toyota Tacoma, Power Steering
• Fits 2000-2004 Toyota Tundra, Air Conditioning
• Fits 1996-2002 Toyota 4Runner, Air Conditioning
• Fits 1996-2000 Toyota 4Runner, Power Steering
• Fits 1994-1998 Toyota T100, N/A
• Fits 1994-1998 Toyota T100, Power Steering
• Fits 1990-1998 Toyota Tercel, Air Conditioning
• Fits 1989-1997 Geo Prizm, N/A
• Fits 1990-1997 Toyota Celica, Air Conditioning
• Fits 1986 Toyota Celica, Air Conditioning
• Fits 1988-1997 Toyota Corolla, Air Conditioning
• Fits 1994-1997 Toyota Previa, N/A
• Fits 1995 Mazda 929, N/A
• Fits 1991-1995 Toyota MR2, Air Conditioning
• Fits 1985-1989 Toyota MR2, Air Conditioning
• Fits 1990-1994 Geo Metro, N/A
• Fits 1992 Chevrolet Metro, N/A
• Fits 1986-1992 Toyota Supra, Air Conditioning
• Fits 1986-1990 Acura Legend, N/A