HomeBelts and Cooling > Accessory Drive Belt System ComponentsHayden 5027 Accessory Drive Belt Idler Pulley
Part #: 5027

Hayden 5027 Accessory Drive Belt Idler Pulley

Pulley
⚙️ 44 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Pulley
🚗Fitment: Mercedes-Benz, SL600, S320, S420, S430, S500, SL500, C280, C36 AMG, E320, E420, 300CE, 300E, 300SL, 300TE, and 300SEL
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Overview of Hayden Pulley 5027 Accessory Drive Belt Idler Pulley

The Hayden Pulley 5027 is a precision-engineered accessory drive belt idler pulley designed for select Mercedes-Benz models. Constructed from durable black plastic, this idler pulley supports serpentine belt systems, ensuring smooth operation and reliable tension management.

  • Material: High-quality black plastic for durability and corrosion resistance
  • Inside Diameter: 1.06 inches (27 mm)
  • Outside Diameter: 2.5 inches (63.5 mm)
  • Width: 1.062 inches (26.9 mm)
  • Groove Quantity: 6 grooves compatible with serpentine belts
  • Belt Width Compatibility: 0.875 inches (22.225 mm)
  • Bore Diameter: 0.562 inches (14.27 mm)
  • Meets or exceeds OEM specifications
  • Mount Hole Quantity: 1 (mounting hardware not included)

Detailed Product Description

The Hayden Pulley 5027 is engineered as an idler and tensioner pulley for accessory drive belt systems, specifically designed to fit a range of Mercedes-Benz vehicles including the 300CE, 300E, 300SEL, 300SL, 300TE, C36 AMG, C280, E320, E420, S320, S420, S430, S500, SL500, and SL600 models. Its six-groove design accommodates serpentine belts with a width of 0.875 inches (22.225 mm), providing consistent belt alignment and tension. The black plastic construction offers resistance to wear and environmental factors, contributing to the longevity of the pulley within the engine bay.

As part of the Hayden Pulley product line, this component is manufactured to meet or exceed original equipment manufacturer (OEM) standards, ensuring compatibility and performance that aligns with factory specifications. The Pulley line focuses on delivering reliable accessory drive belt system components that maintain proper belt routing and tension, critical for the operation of alternators, power steering pumps, and air conditioning compressors.

Common Applications and Problem Resolution

  • Replaces worn or damaged idler pulleys causing belt misalignment or noise
  • Addresses belt slippage or improper tension in serpentine belt systems
  • Eliminates squealing or chirping noises related to pulley wear
  • Prevents premature belt wear due to pulley groove damage or deformation
  • Restores proper accessory drive function in Mercedes-Benz models listed

Installation Notes and Tips

  • Verify compatibility with your specific Mercedes-Benz model before installation
  • Ensure the serpentine belt width matches the pulley groove specifications (0.875 inches)
  • Mounting hardware is not included; reuse OEM hardware or acquire appropriate fasteners
  • Inspect belt condition and replace if necessary during pulley installation
  • Follow manufacturer torque specifications for mounting bolt to avoid damage

Quality Assurance and Warranty

The Hayden Pulley 5027 is manufactured to meet or exceed OEM quality standards, providing reliable performance for Mercedes-Benz accessory drive belt systems. While specific warranty details are not provided, Hayden products typically adhere to industry quality controls to ensure durability and fitment accuracy. It is recommended to consult product documentation or supplier information for warranty coverage.

BrandHayden
Part Number5027
PositionPulley
Belt TypeSerpentine
Belt Width IN0.875
Belt Width MM22.225
Bore Dia. IN.562
ColorBlack
DescriptionIdler / Tensioner Pulley
Groove Quantity6
I.D. MM7.9375
Inside Diameter1.06
MaterialPlastic
Meets / Exceeds OEM?Yes
Mount Hole Qty1
Mounting Hardware?Not Included
O.D. MM63.500
Outside Diameter2.500
Pulley TypeIdler Pulley
Pulley Width IN1.062
Pulley Width MM26.9
StyleIdler / Tensioner Pulley
TypePulley
Width25.4

This part fits 44 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2001Mercedes-BenzSL600N/APulley
2000Mercedes-BenzSL600N/APulley
1999Mercedes-BenzS320N/APulley
1999Mercedes-BenzS420N/APulley
1999Mercedes-BenzS430N/APulley
1999Mercedes-BenzS500N/APulley
1998Mercedes-BenzS320N/APulley
1998Mercedes-BenzS420N/APulley
1998Mercedes-BenzS500N/APulley
1998Mercedes-BenzSL500N/APulley
1997Mercedes-BenzC280N/Aw/ 6 Groove Pulley; Pulley
1997Mercedes-BenzC36 AMGN/Aw/ 6 Groove Pulley; Pulley
1997Mercedes-BenzE320N/Aw/ 6 Groove Pulley; Pulley
1997Mercedes-BenzE420N/Aw/ 6 Groove Pulley; Pulley
1997Mercedes-BenzS320N/APulley
1997Mercedes-BenzS420N/APulley
1997Mercedes-BenzS500N/APulley
1996Mercedes-BenzC280N/Aw/ 6 Groove Pulley; Pulley
1996Mercedes-BenzC36 AMGN/Aw/ 6 Groove Pulley; Pulley
1996Mercedes-BenzE320N/Aw/ 6 Groove Pulley; Pulley
1996Mercedes-BenzS320N/APulley
1996Mercedes-BenzS420N/APulley
1996Mercedes-BenzS500N/APulley
1995Mercedes-BenzC280N/Aw/ 6 Groove Pulley; Pulley
1995Mercedes-BenzC36 AMGN/Aw/ 6 Groove Pulley; Pulley
1995Mercedes-BenzE320N/Aw/ 6 Groove Pulley; Pulley
1995Mercedes-BenzS320N/APulley
1994Mercedes-BenzC280N/Aw/ 6 Groove Pulley; Pulley
1994Mercedes-BenzE320N/Aw/ 6 Groove Pulley; Pulley
1994Mercedes-BenzS320N/APulley
1993Mercedes-Benz300CEN/APulley
1993Mercedes-Benz300E3.0LL6N/APulley
1993Mercedes-Benz300E2.8LL6N/APulley
1993Mercedes-Benz300SLN/APulley
1992Mercedes-Benz300SLN/APulley
1992Mercedes-Benz300TEN/APulley
1991Mercedes-Benz300SELN/APulley
1991Mercedes-Benz300SLN/APulley
1991Mercedes-Benz300TEN/APulley
1990Mercedes-Benz300SELN/APulley
1990Mercedes-Benz300SLN/APulley
1990Mercedes-Benz300TEN/APulley
1989Mercedes-Benz300TEN/APulley
1988Mercedes-Benz300TEN/APulley

* 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:

3809045027490805027601200107083511289086A89316CWK835112

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