HomeTransmission > FlexplateATP Parts Z-126 Automatic Transmission Flexplate
Part #: Z-126

ATP Parts Z-126 Automatic Transmission Flexplate

⚙️ 58 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$67.19Free 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
🚗Fitment: Ford and Mercury, Granada, Maverick, Comet, Monarch, Gran Torino, Ranchero, Torino, Montego, Mustang, Country Sedan, Country Squire, Custom, Custom 500, Galaxie 500, LTD, Ranch Wagon, Fairlane, Falcon, Cougar, Galaxie, Caliente, Commuter, and Falcon Sedan Delivery
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Reliable Automatic Transmission Flexplate for Ford and Mercury Vehicles

The ATP Parts Z-126 automatic transmission flexplate is engineered to meet the specific requirements of select Ford and Mercury models, including the Mustang, Cougar, LTD, Monarch, and Montego. Designed with precision, this flexplate ensures proper engagement and smooth operation of your vehicle's automatic transmission system.

  • Outside diameter of 13.313 inches (338.175 mm) for exact fitment
  • 157 teeth for optimal starter engagement
  • Mounting hole diameter of 10.5 mm for secure installation
  • Weight added design with 28 ounces for balanced operation
  • Compatible with pitch flywheels ranging from 12 to 14

Detailed Product Description

The ATP Parts Z-126 flexplate is manufactured to precise specifications, featuring a 13.313-inch outside diameter and 157 teeth to ensure reliable starter motor engagement. The mounting hole diameter of 10.5 mm allows for a secure and accurate fit on compatible automatic transmissions. This flexplate includes a weight addition of 28 ounces, which helps maintain balance and reduce vibration during operation. It is designed for use with pitch flywheels sized between 12 and 14, making it suitable for a range of Ford and Mercury vehicles such as the Mustang, Cougar, LTD, Monarch, and Montego.

Common Applications and Problem Resolution

  • Replaces worn or damaged flexplates causing starter engagement issues
  • Addresses vibration problems due to unbalanced or damaged flexplates
  • Solves mounting alignment issues with precise hole diameter and tooth count
  • Restores proper transmission function in affected Ford and Mercury automatic models
  • Prevents transmission damage caused by faulty flexplate operation

Installation Notes and Tips

  • Ensure compatibility with your vehicle’s make, model, and transmission type before installation
  • Inspect the flywheel and starter for wear or damage during replacement
  • Torque mounting bolts to manufacturer specifications to avoid flexplate warping
  • Check for proper alignment of the flexplate teeth with the starter motor ring gear
  • Use appropriate tools and follow safety procedures when working under the vehicle

Quality Assurance and Warranty Information

ATP Parts manufactures the Z-126 flexplate to meet industry standards for durability and performance. While this flexplate is not SFI approved and does not include an SFI certification sticker, it is designed to provide reliable service in compatible Ford and Mercury automatic transmission applications. ATP Parts offers a limited warranty against defects in materials and workmanship, ensuring confidence in your purchase.

BrandATP Parts
Part NumberZ-126
Diameter (in)1.109
Diameter (mm)338.175
LineCodeATP4
Mounting Hole Diameter10.5
Outside Diameter13.313
Pitch Flywheels12 To 14
Teeth157
Tooth Quantity157
Weight AddedY
Weight OZ28

This part fits 58 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1976MercuryMonarch5.0LV8N/ATeeth: 157; Outer Diameter: 13.294"; Normal Duty Version
1975MercuryMonarch5.0LV8N/ATeeth: 157; Outer Diameter: 13.294"; Normal Duty Version
1974MercuryMontegoN/ATeeth: 157; Outer Diameter: 13.294"; exc. Special Eng.; Only Fits FMX
1974MercuryMontegoN/ATeeth: 157; Outer Diameter: 13.294"; exc. Special Eng.; Only Fits C4
1974MercuryMontego5.0LV8N/ATeeth: 157; Outer Diameter: 13.294"; exc. Special Eng.
1973FordMustang5.0LV8N/ATeeth: 157; Outer Diameter: 13.294"; Normal Duty Version
1973FordMustangN/ATeeth: 157; Outer Diameter: 13.294"; Normal Duty Version
1973MercuryMontegoN/ATeeth: 157; Outer Diameter: 13.294"; exc. Special Eng.
1973MercuryMontego5.0LV8N/ATeeth: 157; Outer Diameter: 13.294"; exc. Special Eng.
1972FordLTDN/A157 Teeth, Outer Diameter of 13.294 inches, Includes Weight
1972FordLTD5.0LV8N/A157 Teeth, Outer Diameter of 13.294 inches, Includes Weight
1972FordMustang5.0LV8N/ATeeth: 157; Outer Diameter: 13.294"; Normal Duty Version
1972FordMustangN/ATeeth: 157; Outer Diameter: 13.294"; Normal Duty Version
1972MercuryMontegoN/ATeeth: 157; Outer Diameter: 13.294"; exc. Special Eng.; Only Fits FMX
1972MercuryMontegoN/ATeeth: 157; Outer Diameter: 13.294"; exc. Special Eng.; Only Fits C4
1972MercuryMontego5.0LV8N/ATeeth: 157; Outer Diameter: 13.294"; exc. Special Eng.
1971FordLTDN/A157 Teeth, Outer Diameter of 13.294 inches, Includes Weight
1971FordLTD5.0LV8N/A157 Teeth, Outer Diameter of 13.294 inches, Includes Weight
1971FordMustang5.0LV8N/ATeeth: 157; Outer Diameter: 13.294"; Normal Duty Version
1971MercuryMontegoN/ATeeth: 157; Outer Diameter: 13.294"; exc. Special Eng.; Only Fits FMX
1971MercuryMontegoN/ATeeth: 157; Outer Diameter: 13.294"; exc. Special Eng.; Only Fits C4
1971MercuryMontego5.0LV8N/ATeeth: 157; Outer Diameter: 13.294"; exc. Special Eng.
1970FordLTDN/A157 Teeth, Outer Diameter of 13.294 inches, Includes Weight
1970FordLTD5.0LV8N/A157 Teeth, Outer Diameter of 13.294 inches, Includes Weight
1970FordMustang5.0LV8N/ATeeth: 157; Outer Diameter: 13.294"; Normal Duty Version
1970MercuryCougar5.0LV8N/ATeeth: 157; Outer Diameter: 13.294"; exc. Special Eng.; Only Fits FMX
1970MercuryCougar5.0LV8N/ATeeth: 157; Outer Diameter: 13.294"; exc. Special Eng.; Only Fits C4
1970MercuryMontegoN/ATeeth: 157; Outer Diameter: 13.294"; exc. Special Eng.; Only Fits FMX
1970MercuryMontegoN/ATeeth: 157; Outer Diameter: 13.294"; exc. Special Eng.; Only Fits C4
1970MercuryMontego5.0LV8N/ATeeth: 157; Outer Diameter: 13.294"; exc. Special Eng.
1969FordLTDN/A157 Teeth, Outer Diameter of 13.294 inches, Includes Weight
1969FordLTD5.0LV8N/A157 Teeth, Outer Diameter of 13.294 inches, Includes Weight
1969FordMustang5.0LV8N/ATeeth: 157; Outer Diameter: 13.294"; Normal Duty Version
1969MercuryCougarN/ATeeth: 157; Outer Diameter: 13.294"; exc. Special Eng.; Only Fits FMX
1969MercuryCougarN/ATeeth: 157; Outer Diameter: 13.294"; exc. Special Eng.; Only Fits C4
1969MercuryCougar5.0LV8N/ATeeth: 157; Outer Diameter: 13.294"; exc. Special Eng.; Only Fits FMX
1969MercuryCougar5.0LV8N/ATeeth: 157; Outer Diameter: 13.294"; exc. Special Eng.; Only Fits C4
1969MercuryMontegoN/ATeeth: 157; Outer Diameter: 13.294"; exc. Special Eng.; Only Fits FMX
1969MercuryMontegoN/ATeeth: 157; Outer Diameter: 13.294"; exc. Special Eng.; Only Fits C4
1969MercuryMontego5.0LV8N/ATeeth: 157; Outer Diameter: 13.294"; exc. Special Eng.
1968FordLTDN/A157 Teeth, Outer Diameter of 13.294 inches, Includes Weight
1968FordLTD5.0LV8N/A157 Teeth, Outer Diameter of 13.294 inches, Includes Weight
1968FordMustang5.0LV8N/ATeeth: 157; Outer Diameter: 13.294"; Normal Duty Version
1968FordMustang4.7LV8N/ATeeth: 157; Outer Diameter: 13.294"; Normal Duty Version
1968MercuryCougarN/ATeeth: 157; Outer Diameter: 13.294"; exc. Special Eng.; Only Fits FMX
1968MercuryCougarN/ATeeth: 157; Outer Diameter: 13.294"; exc. Special Eng.; Only Fits C4
1968MercuryCougar5.0LV8N/ATeeth: 157; Outer Diameter: 13.294"; exc. Special Eng.
1968MercuryCougar4.7LV8N/A157 Teeth, Outer Diameter of 13.294 inches, Includes Weight
1968MercuryMontegoN/ATeeth: 157; Outer Diameter: 13.294"; exc. Special Eng.; Only Fits FMX
1968MercuryMontegoN/ATeeth: 157; Outer Diameter: 13.294"; exc. Special Eng.; Only Fits C4
1968MercuryMontego5.0LV8N/ATeeth: 157; Outer Diameter: 13.294"; exc. Special Eng.
1968MercuryMontego5.0LV8N/ATeeth: 157; Outer Diameter: 13.294"; exc. Special Eng.; Only Fits FMX
1967FordLTD4.7LV8N/ATeeth: 157; Outer Diameter: 13.294"; exc. Special Eng.
1967FordMustang4.7LV8N/ATeeth: 157; Outer Diameter: 13.294"; Normal Duty Version
1967MercuryCougar4.7LV8N/A157 Teeth, Outer Diameter of 13.294 inches, Includes Weight
1966FordMustang4.7LV8N/ATeeth: 157; Outer Diameter: 13.294"; Normal Duty Version
1965FordMustang4.7LV8N/ATeeth: 157; Outer Diameter: 13.294"; Normal Duty Version
1964FordMustang4.7LV8N/ATeeth: 157; Outer Diameter: 13.294"; exc. Special Eng.

* 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:

33666409414416108243506005010AA-F211C3AZ6375LFA24FM211FRA-203FRA203FW95884FY33V608XF34

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