Hayden 5038 Accessory Drive Belt Idler Pulley - Serpentine

Hayden 5038 Accessory Drive Belt Idler Pulley

Hayden 5038 is an accessory drive belt idler pulley for serpentine belt systems. It uses a black plastic pulley body with a 6-groove profile and OE-style dimensions for direct replacement service on a wide range of Chrysler, Dodge, Jeep, Ram, Mercedes-Benz, and other applications.

Built to meet or exceed OEM requirements, this Hayden pulley is sized for 1.000 in belt width applications and is listed as an idler/tensioner pulley. The Hayden pulley line focuses on replacement drive components that match factory fit and function for accessory belt routing and tension control.

Key Features

• Accessory drive belt idler pulley for serpentine belt systems
• Hayden 5038 replacement part number
• Black plastic construction
• 6-groove pulley design
• Outside diameter: 2.500 in (65.088 mm)
• Inside diameter: 1.02 in (26.0 mm)
• Pulley width: 1.063 in (26.9 mm)
• Meets or exceeds OEM specifications
• Mounting hardware not included

Product Details

This Hayden 5038 idler pulley is used in serpentine accessory drive systems where the belt must stay aligned and maintain proper routing across engine accessories. The OE-style dimensions, 6-groove profile, and 1.000 in belt width specification make it a direct-fit service part for many late-model and earlier vehicles, including Chrysler 300, Dodge Charger, and Jeep Grand Cherokee applications. This part cross-references Gates 38082 and Dayco 89070 for the same application.

Compatible With select Chrysler 300, Dodge Charger, Dodge Durango, Jeep Grand Cherokee, Ram 1500, and Mercedes-Benz applications listed in the fitment data. Hayden 5038 is also referenced under interchange numbers including Mopar 68459077AA.

What It Is Used For

• Replacing a worn or noisy serpentine belt idler pulley
• Restoring proper belt tracking across the accessory drive system
• Addressing belt squeal caused by pulley wear or surface damage
• Correcting belt misalignment from a damaged pulley bearing or body
• Maintaining stable belt routing on engine accessory drives

Installation Notes and Tips

Verify pulley diameter, groove count, belt width, and mounting style before installation. Mounting hardware is not included, so reuse or source the correct fastener as needed. Inspect the serpentine belt, tensioner, and adjacent pulleys during service to avoid repeat noise or alignment issues. Confirm vehicle-specific fitment for your exact year, make, and model before ordering.

Quality Assurance

Hayden 5038 is listed as meeting or exceeding OEM requirements for replacement use. The part is built as an OE-style idler/tensioner pulley for service applications where factory-level dimensions and belt engagement are required.