Part #: 37004P

Gates 37004P Alternator Decoupler Pulley

Decoupler Pulley
⚙️ 49 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Decoupler Pulley
🚗Fitment: Ford, Lincoln, and Mercury, Crown Victoria, Town Car, and Grand Marquis
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Overview of Gates Decoupler Pulley 37004P

The Gates Decoupler Pulley 37004P is engineered for reliable alternator performance in select Ford, Lincoln, and Mercury vehicles. Designed specifically for models like the Crown Victoria, Grand Marquis, and Town Car, this alternator decoupler pulley ensures smooth operation and reduces belt vibration.

  • Constructed from durable steel for long-lasting strength
  • Features 6 V-ribbed grooves for optimal belt engagement
  • Flanged design enhances belt alignment and stability
  • Measures 53 mm outside diameter and 49 mm width
  • Includes pulley and dust cap for complete installation
  • OE exact fit with a bore diameter of 12.5 mm
  • Requires installation tool part number 91024-3

About the Gates Decoupler Pulley Product Line

The Gates Decoupler Pulley line focuses on delivering precise alternator pulley components that reduce vibration and improve belt life. This product line is designed to meet original equipment specifications, providing a direct replacement for factory-installed parts. The 37004P alternator decoupler pulley is part of this line, offering a flanged, steel construction with a V-ribbed groove profile to maintain consistent alternator function in Ford, Lincoln, and Mercury vehicles.

Detailed Product Description

The Gates 37004P alternator decoupler pulley is crafted from steel to withstand the stresses of engine operation. Its six V-ribbed grooves provide secure belt contact, minimizing slippage and wear. The flanged design helps maintain proper belt tracking, reducing the risk of misalignment. With an outside diameter of 53 mm and a width of 49 mm, this pulley fits precisely on alternators requiring a 12.5 mm bore diameter. The included dust cap protects the pulley assembly from contaminants, contributing to longer service life.

Common Applications and Problem Solving

  • Eliminates alternator belt slippage and noise
  • Reduces vibration transmitted to the alternator
  • Prevents premature belt wear and damage
  • Restores proper alternator pulley function in Ford Crown Victoria, Lincoln Town Car, and Mercury Grand Marquis
  • Addresses pulley misalignment and related charging system issues

Installation Notes and Tips

Installation of the Gates 37004P alternator decoupler pulley requires the use of the specific tool part number 91024-3 to ensure proper fitment and torque. It is recommended to inspect the belt and related components during installation to confirm overall system integrity. Proper alignment and secure mounting are critical to avoid premature wear or failure.

Quality Assurance and Warranty

This alternator decoupler pulley meets OE exact specifications, ensuring compatibility and performance consistent with factory parts. Gates products are manufactured under strict quality control standards. While specific warranty details are not provided here, Gates typically offers coverage against manufacturing defects; consult product documentation for exact terms.

BrandGates
Part Number37004P
PositionDecoupler Pulley
Bore Diameter12.5
Contact SurfaceV-Ribbed Grooved
ContentsPulley, Dust Cap
DescriptionAlternator Decoupler Pulley
FlangedYes
Groove Quantity6
Installation Tools Requirements91024-3
MaterialSteel
OE Comparison RatingOE Exact
Outside Diameter53
Required Tool Part Number91024-3
Width49

This part fits 49 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2011FordCrown Victoria4.6LV8FLEXN/AW/190A., 200A. Alt.; Installation Tool Required; Decoupler Pulley
2011FordCrown Victoria4.6LV8GASN/AW/190A., 200A. Alt.; Installation Tool Required; Decoupler Pulley
2011LincolnTown Car4.6LV8FLEXN/AW/190A., 200A. Alt.; Installation Tool Required; Decoupler Pulley
2011LincolnTown Car4.6LV8GASN/AW/190A., 200A. Alt.; Installation Tool Required; Decoupler Pulley
2011MercuryGrand Marquis4.6LV8FLEXN/AW/190A., 200A. Alt.; Installation Tool Required; Decoupler Pulley
2010FordCrown Victoria4.6LV8FLEXN/AW/190A., 200A. Alt.; Installation Tool Required; Decoupler Pulley
2010FordCrown Victoria4.6LV8GASN/AW/190A., 200A. Alt.; Installation Tool Required; Decoupler Pulley
2010LincolnTown Car4.6LV8FLEXN/AW/190A., 200A. Alt.; Installation Tool Required; Decoupler Pulley
2010LincolnTown Car4.6LV8GASN/AW/190A., 200A. Alt.; Installation Tool Required; Decoupler Pulley
2010MercuryGrand Marquis4.6LV8FLEXN/AW/190A., 200A. Alt.; Installation Tool Required; Decoupler Pulley
2010MercuryGrand Marquis4.6LV8GASN/AW/190A., 200A. Alt.; Installation Tool Required; Decoupler Pulley
2009FordCrown Victoria4.6LV8FLEXN/AW/190A., 200A. Alt.; Installation Tool Required; Decoupler Pulley
2009FordCrown Victoria4.6LV8GASN/AW/190A., 200A. Alt.; Installation Tool Required; Decoupler Pulley
2009LincolnTown Car4.6LV8FLEXN/AW/190A., 200A. Alt.; Installation Tool Required; Decoupler Pulley
2009LincolnTown Car4.6LV8GASN/AW/190A., 200A. Alt.; Installation Tool Required; Decoupler Pulley
2009MercuryGrand Marquis4.6LV8FLEXN/AW/190A., 200A. Alt.; Installation Tool Required; Decoupler Pulley
2009MercuryGrand Marquis4.6LV8GASN/AW/190A., 200A. Alt.; Installation Tool Required; Decoupler Pulley
2008FordCrown Victoria4.6LV8FLEXN/AW/190A., 200A. Alt.; Installation Tool Required; Decoupler Pulley
2008FordCrown Victoria4.6LV8GASN/AW/190A., 200A. Alt.; Installation Tool Required; Decoupler Pulley
2008LincolnTown Car4.6LV8FLEXN/AW/190A., 200A. Alt.; Installation Tool Required; Decoupler Pulley
2008LincolnTown Car4.6LV8GASN/AW/190A., 200A. Alt.; Installation Tool Required; Decoupler Pulley
2008MercuryGrand Marquis4.6LV8FLEXN/AW/190A., 200A. Alt.; Installation Tool Required; Decoupler Pulley
2008MercuryGrand Marquis4.6LV8GASN/AW/190A., 200A. Alt.; Installation Tool Required; Decoupler Pulley
2007FordCrown Victoria4.6LV8FLEXN/AW/190A., 200A. Alt.; Installation Tool Required; Decoupler Pulley
2007FordCrown Victoria4.6LV8GASN/AW/190A., 200A. Alt.; Installation Tool Required; Decoupler Pulley
2007LincolnTown Car4.6LV8FLEXN/AW/190A., 200A. Alt.; Installation Tool Required; Decoupler Pulley
2007LincolnTown Car4.6LV8GASN/AW/190A., 200A. Alt.; Installation Tool Required; Decoupler Pulley
2007MercuryGrand Marquis4.6LV8FLEXN/AW/190A., 200A. Alt.; Installation Tool Required; Decoupler Pulley
2007MercuryGrand Marquis4.6LV8GASN/AW/190A., 200A. Alt.; Installation Tool Required; Decoupler Pulley
2006FordCrown Victoria4.6LV8FLEXN/AW/190A., 200A. Alt.; Installation Tool Required; Decoupler Pulley
2006FordCrown Victoria4.6LV8GASN/AW/190A., 200A. Alt.; Installation Tool Required; Decoupler Pulley
2006LincolnTown Car4.6LV8FLEXN/AW/190A., 200A. Alt.; Installation Tool Required; Decoupler Pulley
2006LincolnTown Car4.6LV8GASN/AW/190A., 200A. Alt.; Installation Tool Required; Decoupler Pulley
2006MercuryGrand Marquis4.6LV8FLEXN/AW/190A., 200A. Alt.; Installation Tool Required; Decoupler Pulley
2006MercuryGrand Marquis4.6LV8GASN/AW/190A., 200A. Alt.; Installation Tool Required; Decoupler Pulley
2005FordCrown Victoria4.6LV8CNGN/AW/190A., 200A. Alt.; Installation Tool Required; Decoupler Pulley
2005FordCrown Victoria4.6LV8GASN/AW/190A., 200A. Alt.; Installation Tool Required; Decoupler Pulley
2005MercuryGrand Marquis4.6LV8GASN/AW/190A., 200A. Alt.; Installation Tool Required; Decoupler Pulley
2004FordCrown Victoria4.6LV8CNGN/AW/190A., 200A. Alt.; Installation Tool Required; Decoupler Pulley
2004FordCrown Victoria4.6LV8GASN/AW/190A., 200A. Alt.; Installation Tool Required; Decoupler Pulley
2004FordGrand Marquis4.6LV8GASN/AW/190A., 200A. Alt.; Installation Tool Required; Decoupler Pulley
2004MercuryGrand Marquis4.6LV8GASN/AW/190A., 200A. Alt.; Installation Tool Required; Decoupler Pulley
2003FordCrown Victoria4.6LV8CNGN/AW/190A., 200A. Alt.; Installation Tool Required; Decoupler Pulley
2003FordCrown Victoria4.6LV8GASN/AW/190A., 200A. Alt.; Installation Tool Required; Decoupler Pulley
2003FordGrand Marquis4.6LV8GASN/AW/190A., 200A. Alt.; Installation Tool Required; Decoupler Pulley
2003MercuryGrand Marquis4.6LV8GASN/AW/190A., 200A. Alt.; Installation Tool Required; Decoupler Pulley
2002MercuryGrand Marquis4.6LV8GASN/AW/190A., 200A. Alt.; Installation Tool Required; Decoupler Pulley
2001MercuryGrand Marquis4.6LV8GASN/AW/190A., 200A. Alt.; Installation Tool Required; Decoupler Pulley
2000MercuryGrand Marquis4.6LV8GASN/AW/190A., 200A. Alt.; Installation Tool Required; Decoupler 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:

11026300-86937004P49935892002920004920004A

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