ATP Parts Z-124 Automatic Transmission Flexplate

Brand ATP Parts Z-124
Diameter (in) 1.161
Diameter (mm) 348.175
LineCode ATP4
Mounting Hole Diameter 11.5
Outside Diameter 13.938
Pitch Flywheels 12 To 14
Teeth 166
Tooth Quantity 166
Fits Cadillac · 59 vehicles

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

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

Flexplate function. Connects the engine and transmission with starter ring gear teeth.

Cross-references Pioneer Automotive Industries FRA-106, 4317 and 1616534 for the same application. See all 12.

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Automatic Transmission Flexplate for GM Applications

ATP Parts Z-124 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 166 ring gear teeth to match the original-style fit and function.

For Cadillac Commercial Chassis, Fleetwood, DeVille, and Eldorado applications, this flexplate supports the torque converter connection and starter engagement required in automatic transmission setups. The ATP Parts Z-124 is a direct replacement choice when the original flexplate is cracked, warped, or damaged.

Key Features

  • Automatic transmission flexplate for engine-to-transmission connection
  • 13.938 in. outside diameter
  • 166 teeth for starter engagement
  • 11.5 mm mounting hole diameter
  • 12 to 14 pitch flywheels
  • High-quality steel construction
  • OE-style bolt-hole spacing and ring gear tooth layout
  • Part number: Z-124

Detailed Description

Flexplates are exposed to repeated expansion and contraction as engine speed changes, and that stress can lead to cracking or shearing over time. When a flexplate fails, it cannot be repaired and must be replaced. ATP Parts Z-124 is engineered to restore the connection between the engine, torque converter, and starter with the correct 166-tooth ring gear and a 13.938-inch outside diameter. This part number, Z-124, is a practical replacement for Cadillac Commercial Chassis, Fleetwood, DeVille, and Eldorado models listed in the fitment data.

This part cross-references Pioneer Automotive Industries FRA-106 for the same application.

What This Part Helps Address

  • Cracked flexplate from repeated drivetrain stress
  • Sheared or damaged ring gear teeth
  • Starter engagement problems caused by worn teeth
  • Torque converter connection issues in automatic transmission systems
  • Noise or vibration related to a failing flexplate

Installation Notes and Tips

Verify tooth count, outside diameter, and mounting dimensions before installation. Confirm the application matches the listed Cadillac fitment and check for the 166-tooth, 13.901-inch outer diameter notes shown in the vehicle data. Inspect the torque converter, starter drive, and related fasteners for wear or damage before installing the new flexplate. Professional installation is recommended for automatic transmission drivetrain service.

Quality Assurance

ATP Parts manufactures this flexplate from steel with OE-style dimensions and tooth spacing to support proper fitment and long-term durability in the listed applications.

This part fits 59 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
1984CadillacCommercial Chassis6.0LV8N/ATeeth: 166; Outer Diameter: 13.901"
1984CadillacFleetwood6.0LV8N/ATeeth: 166; Outer Diameter: 13.901"
1983CadillacCommercial Chassis6.0LV8N/ATeeth: 166; Outer Diameter: 13.901"
1983CadillacFleetwood6.0LV8N/ATeeth: 166; Outer Diameter: 13.901"
1982CadillacCommercial Chassis6.0LV8N/ATeeth: 166; Outer Diameter: 13.901"
1982CadillacFleetwood6.0LV8N/ATeeth: 166; Outer Diameter: 13.901"
1981CadillacCommercial Chassis6.0LV8N/ATeeth: 166; Outer Diameter: 13.901"
1981CadillacDeVille6.0LV8N/ATeeth: 166; Outer Diameter: 13.901"
1981CadillacEldorado6.0LV8N/ATeeth: 166; Outer Diameter: 13.901"
1981CadillacFleetwood6.0LV8N/ATeeth: 166; Outer Diameter: 13.901"
1980CadillacCommercial Chassis6.0LV8N/ATeeth: 166; Outer Diameter: 13.901"
1980CadillacDeVille6.0LV8N/ATeeth: 166; Outer Diameter: 13.901"
1980CadillacEldorado6.0LV8N/ATeeth: 166; Outer Diameter: 13.901"
1980CadillacFleetwood6.0LV8N/ATeeth: 166; Outer Diameter: 13.901"
1979CadillacCommercial Chassis7.0LV8N/ATeeth: 166; Outer Diameter: 13.901"
1979CadillacDeVille7.0LV8N/ATeeth: 166; Outer Diameter: 13.901"
1979CadillacFleetwood7.0LV8N/ATeeth: 166; Outer Diameter: 13.901"
1978CadillacCommercial Chassis7.0LV8N/ATeeth: 166; Outer Diameter: 13.901"
1978CadillacDeVille7.0LV8N/ATeeth: 166; Outer Diameter: 13.901"
1978CadillacEldorado7.0LV8N/ATeeth: 166; Outer Diameter: 13.901"
1978CadillacFleetwood7.0LV8N/ATeeth: 166; Outer Diameter: 13.901"
1977CadillacCommercial Chassis7.0LV8N/ATeeth: 166; Outer Diameter: 13.901"
1977CadillacDeVille7.0LV8N/ATeeth: 166; Outer Diameter: 13.901"
1977CadillacEldorado7.0LV8N/ATeeth: 166; Outer Diameter: 13.901"
1977CadillacFleetwood7.0LV8N/ATeeth: 166; Outer Diameter: 13.901"
1976CadillacDeVille8.2LV8N/ATeeth: 166; Outer Diameter: 13.901"; w/o Weight
1976CadillacEldorado8.2LV8N/ATeeth: 166; Outer Diameter: 13.901"; w/o Weight
1976CadillacFleetwood8.2LV8N/ATeeth: 166; Outer Diameter: 13.901"
1975CadillacDeVille8.2LV8N/ATeeth: 166; Outer Diameter: 13.901"; w/o Weight
1975CadillacEldorado8.2LV8N/ATeeth: 166; Outer Diameter: 13.901"; w/o Weight
1975CadillacFleetwood8.2LV8N/ATeeth: 166; Outer Diameter: 13.901"
1974CadillacCommercial Chassis7.7LV8N/ATeeth: 166; Outer Diameter: 13.901"
1974CadillacDeVille7.7LV8N/ATeeth: 166; Outer Diameter: 13.901"
1974CadillacEldorado8.2LV8N/ATeeth: 166; Outer Diameter: 13.901"
1974CadillacFleetwood7.7LV8N/ATeeth: 166; Outer Diameter: 13.901"
1973CadillacCommercial Chassis7.7LV8N/ATeeth: 166; Outer Diameter: 13.901"
1973CadillacDeVille7.7LV8N/ATeeth: 166; Outer Diameter: 13.901"
1973CadillacEldorado8.2LV8N/ATeeth: 166; Outer Diameter: 13.901"
1973CadillacFleetwood7.7LV8N/ATeeth: 166; Outer Diameter: 13.901"
1972CadillacCommercial Chassis7.7LV8N/ATeeth: 166; Outer Diameter: 13.901"
1972CadillacDeVille7.7LV8N/ATeeth: 166; Outer Diameter: 13.901"
1972CadillacEldorado8.2LV8N/ATeeth: 166; Outer Diameter: 13.901"
1972CadillacFleetwood7.7LV8N/ATeeth: 166; Outer Diameter: 13.901"
1971CadillacCommercial Chassis7.7LV8N/ATeeth: 166; Outer Diameter: 13.901"
1971CadillacDeVille7.7LV8N/ATeeth: 166; Outer Diameter: 13.901"
1971CadillacEldorado8.2LV8N/ATeeth: 166; Outer Diameter: 13.901"
1971CadillacFleetwood7.7LV8N/ATeeth: 166; Outer Diameter: 13.901"
1970CadillacCommercial Chassis7.7LV8N/ATeeth: 166; Outer Diameter: 13.901"
1970CadillacDeVille7.7LV8N/ATeeth: 166; Outer Diameter: 13.901"
1970CadillacEldorado8.2LV8N/ATeeth: 166; Outer Diameter: 13.901"
1970CadillacFleetwood7.7LV8N/ATeeth: 166; Outer Diameter: 13.901"
1969CadillacCommercial Chassis7.7LV8N/ATeeth: 166; Outer Diameter: 13.901"
1969CadillacDeVille7.7LV8N/ATeeth: 166; Outer Diameter: 13.901"
1969CadillacEldorado7.7LV8N/ATeeth: 166; Outer Diameter: 13.901"
1969CadillacFleetwood7.7LV8N/ATeeth: 166; Outer Diameter: 13.901"
1968CadillacCommercial Chassis7.7LV8N/ATeeth: 166; Outer Diameter: 13.901"
1968CadillacDeVille7.7LV8N/ATeeth: 166; Outer Diameter: 13.901"
1968CadillacEldorado7.7LV8N/ATeeth: 166; Outer Diameter: 13.901"
1968CadillacFleetwood7.7LV8N/ATeeth: 166; Outer Diameter: 13.901"
Directly replaces or cross-references 12 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Pioneer Automotive Industries — FRA-1064317161653441610266005006AA-G121FA43FRA106FW95842FY31GM121XF32