ATP Parts ZA-578 Clutch Flywheel Ring Gear

Overview of ATP Parts Clutch Flywheel Ring Gear ZA-578

The ATP Parts clutch flywheel ring gear ZA-578 is designed for reliable performance in select Ford and Mercury vehicles. Engineered to precise specifications, this ring gear supports smooth clutch operation and optimal transmission function.

• Inside Diameter: 10.475 inches
• Outside Diameter: 11.642 inches
• Thickness: 0.373 inches
• Tooth Quantity: 138 teeth
• Pitch Flywheels: 12
• Ring Gear Chamfer: None

Technical Specifications and Features

This clutch flywheel ring gear features a 10.475-inch inside diameter and an 11.642-inch outside diameter, providing a precise fit for compatible flywheels. The 0.373-inch thickness ensures durability while maintaining proper engagement with the starter motor. With 138 teeth and a pitch of 12, the ZA-578 ring gear is engineered to match OEM specifications for smooth and consistent operation. The absence of a chamfer on the ring gear edges indicates a direct fit without modifications.

Compatible Vehicles and Applications

The ATP Parts ZA-578 clutch flywheel ring gear is compatible with a range of Ford and Mercury models, including the Aerostar, Bobcat, Bronco II, Capri, Explorer, Mustang, Pinto, and Ranger. This part number is specifically designed to meet the transmission requirements of these vehicles, ensuring proper fitment and function.

Common Issues Addressed by the ZA-578 Ring Gear

• Starter motor engagement problems due to worn or damaged ring gear teeth
• Clutch slippage caused by improper flywheel gear alignment
• Excessive noise or vibration from flywheel gear wear
• Difficulty in starting the engine related to ring gear damage
• Transmission performance issues linked to faulty flywheel components

Installation Notes and Tips

When installing the ATP Parts ZA-578 clutch flywheel ring gear, ensure the flywheel surface is clean and free of debris. Proper alignment of the ring gear teeth with the starter motor is critical to avoid premature wear. Use appropriate torque specifications for mounting bolts and verify that the gear seats flush against the flywheel. It is recommended to inspect the starter motor pinion for wear during installation to prevent future engagement issues.

Quality Assurance and Warranty

ATP Parts manufactures the ZA-578 clutch flywheel ring gear to meet industry standards for durability and performance. Each unit undergoes quality control inspections to ensure dimensional accuracy and material integrity. While specific warranty details are not provided, ATP Parts products typically come with a limited warranty against manufacturing defects. Consult product documentation or authorized sources for warranty terms.