ATP Parts Z-484 Automatic Transmission Flexplate

Brand ATP Parts Z-484
Diameter (in) 0.938
Diameter (mm) 285.75
LineCode ATP4
Outside Diameter 11.25
Pitch Flywheels 12
Teeth 135
Tooth Quantity 135
Fits Ford and Mercury · 54 vehicles

OE-style fitment. Correct bolt-hole spacing and ring gear teeth match the original part.

High-quality steel. Built for long life and durability under repeated expansion and contraction.

Flex plate function. Connects the engine and transmission with the needed starter ring gear teeth.

Cross-references Pioneer Automotive Industries FRA-544 and AA-F265 for the same application. See all 2.

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Automatic Transmission Flexplate for Ford Applications

ATP Parts Z-484 is an automatic transmission flexplate built for vehicles that use a flex plate to connect the engine and transmission. It is made from high-quality steel with the correct bolt hole spacing and ring gear teeth to match the original part, helping maintain proper starter engagement and torque converter alignment.

Compatible With Ford Ranger, Explorer, Explorer Sport Trac, Mustang, and Mercury Mountaineer applications across the 2002-2011 model years, this flexplate is a direct replacement for vehicles that require 135 teeth and an 11.25-inch outside diameter. ATP Parts Z-484 is also cross-referenced to Pioneer Automotive Industries FRA-544 for the same application.

Key Features

  • Automatic transmission flexplate for engine-to-transmission connection
  • 135-tooth ring gear for starter engagement
  • 11.25-inch outside diameter
  • 0.938-inch diameter specification
  • 12-pitch flywheel configuration
  • High-quality steel construction for durability
  • Correct bolt hole spacing and OE-style ring gear layout
  • ATP Parts Z-484 replacement flexplate

Detailed Product Information

The flexplate is a critical rotating component in automatic transmission systems. It transfers engine rotation to the torque converter while allowing for the movement and expansion that occurs as engine speed changes. Over time, repeated flexing can lead to cracks or shearing, and a damaged flexplate should be replaced rather than repaired. ATP Parts Z-484 is manufactured to match the original fitment dimensions and tooth count for Ford Ranger, Ford Explorer, Ford Explorer Sport Trac, Ford Mustang, and Mercury Mountaineer applications that call for this specification.

Common Issues This Part Can Address

  • Cracked flexplate from repeated stress and flexing
  • Broken or damaged ring gear teeth affecting starter engagement
  • Noise from a warped or failing flexplate
  • Torque converter connection problems caused by flexplate damage
  • Engine-to-transmission alignment issues related to worn OE parts

Installation Notes and Tips

Verify tooth count, outside diameter, and bolt pattern before installation. This part is listed for 135-tooth applications with an 11.25-inch outside diameter, while some listed Ford fitments note 138 teeth and a 11.625-inch outer diameter, so confirm the exact transmission and engine specification for your vehicle before ordering. Inspect the starter, torque converter mounting points, and related hardware for wear or damage during replacement. Proper alignment is important to avoid premature wear and starting issues.

Quality Assurance

ATP Parts manufactures this flexplate in high-quality steel with OE-style dimensions and ring gear teeth to support long service life and consistent fitment. The part is not SFI approved and does not include an SFI certification sticker.

This part fits 54 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelBody TypeDrive TypeTransmissionLitersCylindersFuel TypePositionNotes
2011FordRanger————4.0LV6—N/ATeeth: 138; Outer Diameter: 11.625"
2010FordExplorer————4.0LV6—N/ATeeth: 138; Outer Diameter: 11.625"
2010FordExplorer Sport Trac————4.0LV6—N/ATeeth: 138; Outer Diameter: 11.625"
2010FordMustang————4.0LV6—N/ATeeth: 138; Outer Diameter: 11.625"
2010FordRanger————4.0LV6—N/ATeeth: 138; Outer Diameter: 11.625"
2010MercuryMountaineer————4.0LV6—N/ATeeth: 138; Outer Diameter: 11.625"
2009FordExplorer————4.0LV6—N/ATeeth: 138; Outer Diameter: 11.625"
2009FordExplorer Sport Trac————4.0LV6—N/ATeeth: 138; Outer Diameter: 11.625"
2009FordMustang————4.0LV6—N/ATeeth: 138; Outer Diameter: 11.625"
2009FordRanger————4.0LV6—N/ATeeth: 138; Outer Diameter: 11.625"
2009MercuryMountaineer————4.0LV6—N/ATeeth: 138; Outer Diameter: 11.625"
2008FordExplorer————4.0LV6—N/ATeeth: 138; Outer Diameter: 11.625"
2008FordExplorer Sport Trac————4.0LV6—N/ATeeth: 138; Outer Diameter: 11.625"
2008FordMustang————4.0LV6—N/ATeeth: 138; Outer Diameter: 11.625"
2008FordRanger————4.0LV6—N/ATeeth: 138; Outer Diameter: 11.625"
2008MercuryMountaineer————4.0LV6—N/ATeeth: 138; Outer Diameter: 11.625"
2007FordExplorer————4.0LV6—N/ATeeth: 138; Outer Diameter: 11.625"
2007FordExplorer Sport Trac————4.0LV6—N/ATeeth: 138; Outer Diameter: 11.625"
2007FordMustang————4.0LV6—N/ATeeth: 138; Outer Diameter: 11.625"
2007FordRanger————4.0LV6—N/ATeeth: 138; Outer Diameter: 11.625"
2007MercuryMountaineer————4.0LV6—N/ATeeth: 138; Outer Diameter: 11.625"
2006FordExplorerXLTSport UtilityRWDAutomatic4.0LV6GASN/A138; 11.625";
2006FordRanger————4.0LV6—N/ATeeth: 138; Outer Diameter: 11.625"
2006MercuryMountaineer————4.0LV6—N/ATeeth: 138; Outer Diameter: 11.625"
2005FordExplorerXLSSport UtilityRWDAutomatic4.0LV6GASN/A138; 11.625";
2005FordExplorer Sport Trac————4.0LV6—N/ATeeth: 138; Outer Diameter: 11.625"
2005FordRanger————4.0LV6—N/ATeeth: 138; Outer Diameter: 11.625"
2005MercuryMountaineerPremier—RWDAutomatic4.0LV6GASN/ATeeth: 138; Outer Diameter: 11.625"
2005MercuryMountaineerPremier—AWDAutomatic4.0LV6GASN/ATeeth: 138; Outer Diameter: 11.625"
2005MercuryMountaineerPremier—RWDAutomatic4.0LV6FLEXN/ATeeth: 138; Outer Diameter: 11.625"
2005MercuryMountaineerPremier—AWDAutomatic4.0LV6FLEXN/ATeeth: 138; Outer Diameter: 11.625"
2004FordExplorerXLSSport UtilityRWDAutomatic4.0LV6GASN/A138; 11.625";
2004FordExplorer Sport Trac————4.0LV6—N/ATeeth: 138; Outer Diameter: 11.625"
2004FordRanger————4.0LV6—N/ATeeth: 138; Outer Diameter: 11.625"
2004MercuryMountaineerBase—RWDAutomatic4.0LV6GASN/ATeeth: 138; Outer Diameter: 11.625"
2004MercuryMountaineerBase—AWDAutomatic4.0LV6GASN/ATeeth: 138; Outer Diameter: 11.625"
2004MercuryMountaineerBase—RWDAutomatic4.0LV6FLEXN/ATeeth: 138; Outer Diameter: 11.625"
2004MercuryMountaineerBase—AWDAutomatic4.0LV6FLEXN/ATeeth: 138; Outer Diameter: 11.625"
2004MercuryMountaineerPremier—AWDAutomatic4.0LV6GASN/ATeeth: 138; Outer Diameter: 11.625"
2003FordExplorerXLSSport UtilityRWDAutomatic4.0LV6GASN/A138; 11.625";
2003FordExplorer Sport Trac————4.0LV6—N/ATeeth: 138; Outer Diameter: 11.625"
2003FordRanger————4.0LV6—N/ATeeth: 138; Outer Diameter: 11.625"
2003MercuryMountaineerBase—RWDAutomatic4.0LV6FLEXN/ATeeth: 138; Outer Diameter: 11.625"
2003MercuryMountaineerBase—AWDAutomatic4.0LV6FLEXN/ATeeth: 138; Outer Diameter: 11.625"
2003MercuryMountaineerBase—4WDAutomatic4.0LV6FLEXN/ATeeth: 138; Outer Diameter: 11.625"
2002FordExplorer————4.0LV6—N/ATeeth: 138; Outer Diameter: 11.625"
2002FordExplorer Sport Trac————4.0LV6—N/ATeeth: 138; Outer Diameter: 11.625"
2002FordRanger————4.0LV6—N/ATeeth: 138; Outer Diameter: 11.625"
2002MercuryMountaineerBase—RWDAutomatic4.0LV6GASN/ATeeth: 138; Outer Diameter: 11.625"
2002MercuryMountaineerBase—AWDAutomatic4.0LV6GASN/ATeeth: 138; Outer Diameter: 11.625"
2002MercuryMountaineerBase—4WDAutomatic4.0LV6GASN/ATeeth: 138; Outer Diameter: 11.625"
2002MercuryMountaineerBase—RWDAutomatic4.0LV6FLEXN/ATeeth: 138; Outer Diameter: 11.625"
2002MercuryMountaineerBase—AWDAutomatic4.0LV6FLEXN/ATeeth: 138; Outer Diameter: 11.625"
2002MercuryMountaineerBase—4WDAutomatic4.0LV6FLEXN/ATeeth: 138; Outer Diameter: 11.625"
Directly replaces or cross-references 2 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Pioneer Automotive Industries — FRA-544AA-F265