HomeBelts and Cooling > Accessory Drive Belt System ComponentsHayden 5079 Accessory Drive Belt Idler Pulley
Part #: 5079

Hayden 5079 Accessory Drive Belt Idler Pulley

Pulley
⚙️ 12 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$33.93Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
📦Pulley
🚗Fitment: Ford, F-250 Super Duty and F-350 Super Duty
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Hayden Pulley Accessory Drive Belt Idler Pulley

The Hayden Pulley 5079 is a steel accessory drive belt idler pulley designed for Ford F-250 Super Duty and F-350 Super Duty models. Engineered to meet or exceed OEM specifications, this pulley supports serpentine belt systems with precision and durability.

  • Constructed from durable steel with a black finish
  • Compatible with serpentine belts 1.00 inch (25.4 mm) wide
  • Inside diameter of 0.671875 inches (17 mm)
  • Outside diameter of 3.54 inches (90 mm)
  • Features 8 grooves for optimal belt engagement
  • Single mount hole design for secure installation
  • Designed as an idler/tensioner pulley for accessory drive systems

Detailed Product Description

The Hayden Pulley 5079 is part of the Pulley product line, which focuses on precision-engineered components for accessory drive belt systems. This idler pulley is crafted from steel to provide strength and resistance to wear, ensuring consistent performance in demanding engine environments. Its black color finish offers corrosion resistance and a professional appearance. The pulley’s 8-groove design accommodates serpentine belts with a width of 1.00 inch (25.4 mm), making it suitable for maintaining proper belt tension and alignment in Ford Super Duty trucks.

With an inside diameter of approximately 0.67 inches (17 mm) and an outside diameter of 3.54 inches (90 mm), the pulley fits securely within the accessory drive system. The 38.1 mm (1.48 inch) width supports stable belt tracking, reducing slippage and wear. This part number 5079 is engineered to meet or exceed OEM standards, ensuring compatibility and reliability for Ford F-250 Super Duty and F-350 Super Duty vehicles.

Common Applications and Problem Solving

  • Restores proper tension and routing of serpentine belts in Ford F-250 and F-350 Super Duty trucks
  • Replaces worn or damaged idler pulleys causing belt noise or misalignment
  • Prevents premature belt wear due to pulley groove damage or corrosion
  • Eliminates belt slippage and reduces risk of accessory drive failure
  • Supports smooth operation of alternator, power steering, and air conditioning systems

Installation Notes and Tips

  • Mounting hardware is not included; use OEM or compatible fasteners for installation
  • Ensure the pulley grooves align precisely with the serpentine belt to avoid belt damage
  • Inspect belt condition and tensioner components during installation for optimal system performance
  • Torque mounting bolt to manufacturer specifications to prevent loosening or damage

Quality Assurance and Warranty

The Hayden Pulley 5079 is manufactured to meet or exceed OEM quality standards, providing reliable performance for Ford F-250 Super Duty and F-350 Super Duty vehicles. While specific warranty details are not provided, Hayden products typically undergo rigorous testing to ensure durability and fitment accuracy. This idler pulley is designed to maintain accessory drive system integrity and support long-term vehicle operation.

BrandHayden
Part Number5079
PositionPulley
Belt TypeSerpentine
Belt Width IN1.00
Belt Width MM25.400
Bore Dia. IN.67
ColorBlack
DescriptionIdler / Tensioner Pulley
Groove Quantity8
I.D. MM17
Inside Diameter0.671875
MaterialSteel
Meets / Exceeds OEM?Yes
Mount Hole Qty1
Mounting Hardware?Not Included
O.D. MM90.0
Outside Diameter3.54
Pulley TypeIdler Pulley
Pulley Width IN1.48
Pulley Width MM37.5
StyleIdler / Tensioner Pulley
TypePulley
Width38.1

This part fits 12 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2016FordF-250 Super Duty6.7LV8N/ADual Alt, Main Drive; Grooved Pulley; Pulley
2016FordF-350 Super Duty6.7LV8N/ADual Alt, Main Drive; Grooved Pulley; Pulley
2015FordF-250 Super Duty6.7LV8N/ADual Alt, Main Drive; Grooved Pulley; Pulley
2015FordF-350 Super Duty6.7LV8N/ADual Alt, Main Drive; Grooved Pulley; Pulley
2014FordF-250 Super Duty6.7LV8N/ADual Alt, Main Drive; Grooved Pulley; Pulley
2014FordF-350 Super Duty6.7LV8N/ADual Alt, Main Drive; Grooved Pulley; Pulley
2013FordF-250 Super Duty6.7LV8N/AGrooved Pulley; Pulley
2013FordF-350 Super Duty6.7LV8N/AGrooved Pulley; Pulley
2012FordF-250 Super Duty6.7LV8N/AGrooved Pulley; Pulley
2012FordF-350 Super Duty6.7LV8N/AGrooved Pulley; Pulley
2011FordF-250 Super Duty6.7LV8N/AGrooved Pulley; Pulley
2011FordF-350 Super Duty6.7LV8N/AGrooved Pulley; Pulley

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

363243C3Z8678AA3C3Z8678EA3C3Z8678EB41969245079507983593989519A79787YS314

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.