HomeBelts and Cooling > Accessory Drive Belt System ComponentsHayden 5942 Accessory Drive Belt Idler Assembly
Part #: 5942

Hayden 5942 Accessory Drive Belt Idler Assembly

Idler Assembly
⚙️ 37 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Idler Assembly
🚗Fitment: Mercury, Ford, and Lincoln, Colony Park, Grand Marquis, LTD Crown Victoria, Mark VII, Mark VI, Town Car, Marquis, and Continental
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Overview of Hayden Idler Assembly 5942

The Hayden Idler Assembly 5942 is engineered for reliable accessory drive belt tensioning in select Ford, Lincoln, and Mercury vehicles. Designed specifically for models like the Grand Marquis, Town Car, and Continental, this steel idler assembly ensures consistent belt alignment and tension.

  • Constructed from durable steel material for long-lasting performance
  • Measures 6.25 inches in length with a grey finish
  • Features a smooth groove pulley with an outside diameter of 3.3125 inches
  • Includes a single mounting hole with a diameter of 0.394 inches for secure installation
  • Compatible with back idler belt type and supports belt widths of 1.0625 inches (25.4 mm)
  • Pulley width measures 1.25 inches (26.9 mm) for optimal belt contact

Details on the Hayden Idler Assembly Product Line

The Hayden Idler Assembly product line focuses on tensioners and pulleys designed to maintain proper accessory drive belt tension and alignment. This Idler Assembly 5942 is part of that line, providing a reliable back idler solution with precise dimensions and a smooth groove to reduce belt wear. Its steel construction and specific mounting hole design make it suitable for various Ford, Lincoln, and Mercury full-size models.

Technical Description and Specifications

This accessory drive belt idler assembly is crafted from steel, offering strength and resistance to wear. The 6.25-inch length and 3.3125-inch outside diameter pulley accommodate belt widths of approximately 1.0625 inches (25.4 mm). The smooth groove design helps minimize belt slippage and noise. The single mounting hole with a 0.394-inch diameter ensures a secure fit during installation. The grey color finish provides corrosion resistance and a professional appearance under the hood.

Compatible Vehicles and Applications

  • Ford Colony Park
  • Lincoln Continental
  • Mercury Grand Marquis
  • Ford LTD and LTD Crown Victoria
  • Lincoln Mark VI and Mark VII
  • Mercury Marquis
  • Lincoln Town Car

Common Issues Addressed by Hayden Idler Assembly 5942

  • Accessory drive belt misalignment causing premature belt wear
  • Excessive belt noise due to improper tension
  • Worn or damaged idler pulleys leading to belt slippage
  • Vibration or rattling noises from loose belt components
  • Failure of original idler assembly affecting accessory drive performance

Installation Notes and Tips

Ensure the engine is off and cooled before beginning installation. Verify the mounting hole diameter and position match the vehicle’s specifications. Use appropriate tools to remove the old idler assembly and install the Hayden Idler Assembly 5942 securely. Check belt alignment and tension after installation to prevent premature wear. Refer to vehicle service manuals for torque specifications and detailed procedures.

Quality Assurance and Warranty

The Hayden Idler Assembly 5942 is manufactured to meet OEM standards for fit and function. Made from high-quality steel with precise machining, it offers durability and consistent performance. While specific warranty details are not provided, Hayden products typically come with manufacturer-backed quality assurance to support reliable operation in Ford, Lincoln, and Mercury vehicles.

BrandHayden
Part Number5942
PositionIdler Assembly
Belt TypeBack Idler
Belt Width IN1.0625
Belt Width MM25.400
ColorGrey
DescriptionIdlers / Tensioners
GrooveSmooth
Inside Diameter.67
Length6.25
MaterialSteel
Mount Hole B Dia. IN0.3
Mounting Hole Diameter0.394
Mounting Hole Quantity1
O.D. MM84.138
Outside Diameter3.3125
Pulley Width IN1.25
Pulley Width MM26.9
StyleIdler Assembly
TypeTensioners and Pulleys

This part fits 37 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersPositionNotes
1991MercuryColony ParkN/AIdler Assembly
1991MercuryGrand MarquisN/Aw/ Bracket; Idler Assembly
1990MercuryColony ParkN/AIdler Assembly
1990MercuryGrand MarquisN/Aw/ Bracket; Idler Assembly
1989MercuryColony ParkN/AIdler Assembly
1989MercuryGrand Marquis5.8LV8N/AIdler Assembly
1988FordLTD Crown VictoriaN/ACompatible with vehicles equipped with Factory Air.; Idler Assembly
1988MercuryColony ParkN/AIdler Assembly
1988MercuryGrand MarquisN/AIdler Assembly
1987FordLTD Crown VictoriaN/ACompatible with vehicles equipped with Factory Air.; Idler Assembly
1987MercuryColony ParkN/AIdler Assembly
1987MercuryGrand MarquisN/AIdler Assembly
1986FordLTD5.0LV8N/ASerpentine Belt; Idler Assembly
1986MercuryGrand MarquisBase5.0LV8N/ACompatible with vehicles equipped with Factory Air.; Idler Assembly
1986MercuryGrand MarquisBase5.8LV8N/ACompatible with vehicles equipped with Factory Air.; Idler Assembly
1986MercuryGrand MarquisLS5.0LV8N/ACompatible with vehicles equipped with Factory Air.; Idler Assembly
1986MercuryGrand MarquisLS5.8LV8N/ACompatible with vehicles equipped with Factory Air.; Idler Assembly
1986MercuryGrand MarquisColony Park5.0LV8N/AIdler Assembly
1986MercuryGrand MarquisColony Park5.8LV8N/AIdler Assembly
1985FordLTD5.8LV8N/AIdler Assembly
1985LincolnMark VII5.0LV8N/Aw/ Fixed Mounting Stud; Idler Assembly
1985MercuryGrand Marquis5.8LV8N/ACompatible with vehicles equipped with Factory Air.; Idler Assembly
1984LincolnMark VII5.0LV8N/AIdler Assembly
1984MercuryGrand Marquis5.8LV8N/ACompatible with vehicles equipped with Factory Air.; Idler Assembly
1983LincolnMark VIN/AIdler Assembly
1983LincolnTown CarN/AIdler Assembly
1983MercuryGrand Marquis5.8LV8N/ACompatible with vehicles equipped with Factory Air.; Idler Assembly
1982LincolnMark VIN/AIdler Assembly
1982LincolnTown CarN/AIdler Assembly
1982MercuryMarquisN/AFixed; Idler Assembly
1981LincolnMark VIN/AIdler Assembly
1981MercuryGrand MarquisBase5.8LV8N/AFixed; Idler Assembly
1981MercuryMarquisN/AFixed; Idler Assembly
1980LincolnContinentalN/AIdler Assembly
1980LincolnMark VIN/AIdler Assembly
1980MercuryGrand MarquisBase5.8LV8N/AFixed; Idler Assembly
1980MercuryMarquisN/AFixed; Idler Assembly

* 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:

1114594215487119051919012920981523625330519459424900655807594260605283594289000032A8794CWK835942E0VY8678AE9AZ8678AIP1033IP42PI253VKM900022YS173YS189YS233YS245YS301

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