ATP Parts Z-111 Automatic Transmission Flexplate

Overview of ATP Parts Z-111 Automatic Transmission Flexplate

The ATP Parts Z-111 automatic transmission flexplate is engineered for reliable performance in a range of GM vehicles including Buick, Chevrolet, GMC, Oldsmobile, and Pontiac models. Designed specifically for internally balanced engines with a two-piece crank seal, this flexplate ensures proper fitment and function in applications such as the Chevrolet Camaro, GMC Sierra, and Pontiac Firebird.

• Inside diameter: 2.49 inches
• Outside diameter: 14.125 inches
• Tooth quantity: 168 teeth
• Mounting hole diameter: 11.25 inches
• Compatible with internally balanced engines featuring a two-piece crank seal
• Diameter: 1.177 inches (358.775 mm)
• Pitch flywheels: 12 to 14
• Not SFI approved and does not include SFI certification sticker

Detailed Product Description

The ATP Parts Z-111 flexplate is designed to connect the engine’s crankshaft to the torque converter in automatic transmission systems. With a precise inside diameter of 2.49 inches and an outside diameter of 14.125 inches, it fits a variety of GM vehicles such as the Chevrolet C10 Suburban, Buick LeSabre, and Pontiac Grand Prix. The 168-tooth count ensures proper engagement with the starter motor, while the 11.25-inch mounting hole diameter provides secure attachment to the crankshaft. This flexplate is intended for use with internally balanced engines that utilize a two-piece crank seal, making it suitable for many classic and late-model GM trucks and cars.

Compatible Vehicles and Applications

This flexplate is compatible with a wide range of GM makes and models, including but not limited to:

• Buick models like Century, LeSabre, and Regal
• Chevrolet trucks and cars such as C10, C1500, Camaro, and Impala
• GMC trucks including K10, K1500, and Sierra series
• Oldsmobile and Pontiac vehicles including Cutlass, Firebird, and Grand Am

Common Issues Addressed by ATP Parts Z-111 Flexplate

• Worn or damaged flexplate teeth causing starter engagement problems
• Flexplate cracks or warping leading to transmission vibration
• Improper fitment on internally balanced engines with two-piece crank seals
• Noise or rattling from a loose or misaligned flexplate
• Replacement for OEM flexplates that no longer meet specifications

Installation Notes and Tips

• Verify engine balance type and crank seal configuration before installation
• Ensure the mounting hole diameter matches the crankshaft flange
• Inspect the starter ring gear teeth for proper engagement
• Torque mounting bolts to manufacturer specifications to avoid flexplate damage
• Check for any signs of flexplate warping or cracks during installation

Quality Assurance and Warranty

The ATP Parts Z-111 flexplate is manufactured to meet industry standards for durability and fitment. While this flexplate is not SFI approved and does not include an SFI certification sticker, it is designed to provide reliable service in compatible GM vehicles. ATP Parts offers a limited warranty against defects in materials and workmanship, ensuring confidence in your purchase.