ATP Parts Z-165 Automatic Transmission Flexplate

Overview of ATP Parts Z-165 Automatic Transmission Flexplate

The ATP Parts Z-165 automatic transmission flexplate is engineered for reliable performance in select GM vehicles. Designed specifically for applications requiring a one-piece crank seal engine, this flexplate ensures proper fit and function in various Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac models.

• Outside diameter: 12.875 inches
• Tooth quantity: 153 teeth
• Mounting hole diameter: 10.63 inches
• Diameter: 1.073 inches (327.025 mm)
• Compatible with pitch flywheels sized 12 to 14
• Weight added for balanced operation
• Not SFI approved and does not include SFI certification sticker

Detailed Product Description

The ATP Parts Z-165 flexplate is designed to meet the specifications required for automatic transmission systems in a range of GM vehicles, including the Chevrolet Camaro, Corvette, Impala, and Monte Carlo, as well as Buick Bonneville and Cadillac Fleetwood. With 153 teeth and a 12.875-inch outside diameter, this flexplate provides the necessary engagement for the starter motor and smooth power transfer from the engine to the transmission.

Its mounting hole diameter of 10.63 inches ensures a secure fit on the crankshaft flange, while the 1.073-inch thickness contributes to durability and resistance to flexing under load. The flexplate is intended for use with one-piece crank seal engines, making it suitable for specific engine configurations found in the listed vehicle models.

Compatible Vehicles and Applications

• Buick Bonneville, Regal
• Cadillac Brougham, Fleetwood, Roadmaster
• Chevrolet Camaro, Caprice, Corvette, El Camino, Impala, Monte Carlo
• Oldsmobile Cutlass, Cutlass Supreme, Custom Cruiser
• Pontiac Firebird, Grand Prix, Parisienne
• Commercial Chassis models requiring a 153-tooth flexplate

Common Issues Addressed by ATP Parts Z-165 Flexplate

• Starter engagement problems due to worn or damaged flexplate teeth
• Vibration or imbalance caused by flexplate weight inconsistencies
• Improper fitment on one-piece crank seal engines
• Flexplate cracking or warping under stress
• Transmission noise related to flexplate defects

Installation Notes and Tips

• Verify compatibility with your vehicle’s make, model, and engine type before installation
• Ensure the crankshaft flange and mounting surfaces are clean and free of debris
• Torque mounting bolts to manufacturer specifications to prevent loosening or damage
• Inspect the starter ring gear teeth for proper engagement after installation
• Check for any signs of flexplate damage or imbalance during installation

Quality Assurance and Warranty Information

ATP Parts manufactures the Z-165 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 engineered to provide reliable service in compatible GM vehicles. Warranty coverage details should be confirmed with the parts distributor or manufacturer documentation.