Hayden 5007 Accessory Drive Belt Idler Pulley - Air Conditioning Bracket

Hayden 5007 Idler Pulley Overview

The Hayden 5007 accessory drive belt idler pulley is a steel V-belt pulley built for the air conditioning bracket on select Nissan applications. It measures 4.000 inches outside diameter with a 0.500-inch belt width and a single groove for V-belt routing.

Use this Hayden Pulley line component when replacing a worn idler or tensioner pulley on Nissan Pickup, Nissan D21, or Nissan 720 applications. Hayden 5007 is made to meet or exceed OEM requirements and is sized for direct-fit service in the accessory drive belt system.

Key Features

• Steel construction with a black finish
• Idler / tensioner pulley style for accessory drive belt service
• Single-groove design for V-belt applications
• 4.000 in. outside diameter and 0.500 in. pulley width
• 0.8125 in. inside diameter, 0.69 in. bore diameter
• Meets or exceeds OEM specifications
• Mounting hardware not included

Detailed Product Description

Hayden 5007 is an accessory drive belt idler pulley designed for V-belt systems where stable belt tracking and consistent rotation are required. The steel pulley body and single-groove profile support reliable operation in the air conditioning bracket location found on 1986 Nissan 720, 1990-1994 Nissan D21, and 1994-1997 Nissan Pickup models. This Hayden 5007 pulley is a practical replacement for worn, noisy, or damaged belt idler components in the front accessory drive system. This part cross-references Monroe Shocks & Struts 5657 for the same application.

What This Pulley Helps Address

• Squealing or chirping from a worn idler pulley
• Belt misalignment in the accessory drive system
• Rough pulley rotation caused by bearing wear
• Visible pulley damage, wobble, or surface wear
• Loss of proper belt tension at the air conditioning bracket

Installation Notes and Tips

Verify pulley diameter, groove count, and belt width before installation. Confirm the mounting point on the air conditioning bracket and inspect the belt for glazing, cracking, or uneven wear before reassembly. Because mounting hardware is not included, reuse or source the correct fasteners as needed. For best results, replace the pulley only after checking belt alignment and adjacent accessory drive components.

Quality Assurance

Hayden 5007 is engineered to meet or exceed OEM requirements for the listed Nissan applications. The Hayden Pulley line is used for replacement service in accessory drive belt systems where dimensional accuracy and consistent pulley operation matter.