Pioneer FRA-533 Automatic Transmission Flexplate

The Pioneer FRA-533 is a direct-fit automatic transmission flexplate engineered to restore OEM levels of performance in vehicles equipped with automatic transmissions. Pioneer Automotive Industries has manufactured precision drivetrain components since 1946, and the FRA-533 continues that tradition with exacting quality standards.

What Is a Flexplate?

The flexplate is a critical powertrain component that connects the engine crankshaft to the automatic transmission's torque converter. Unlike a manual transmission flywheel, the flexplate is a thin stamped-steel disc designed to flex slightly and absorb the expansion of the torque converter as engine RPM increases. It also carries the ring gear teeth that engage the starter motor. Over time, the constant flex and thermal cycling can cause cracking or shearing — a damaged flexplate must be replaced, as it cannot be repaired.

Key Features:

• OE-matching specifications — built to original dimensions for a precise, drop-in fit
• High-grade steel construction — durable material for long service life under demanding conditions
• Automated welding process — ensures exceptional strength and consistency throughout the plate
• Precision balanced — factory-spec balance to eliminate vibration and protect drivetrain components
• Correct bolt-hole spacing and ring-gear tooth count — matches OE part geometry exactly
• Outside diameter: 15.313 in (388.975 mm)
• Quality tested — each unit inspected before leaving the factory

The Pioneer FRA-533 flexplate is a reliable, cost-effective replacement for worn or cracked OEM flexplates, delivering the durability and fit needed to get your vehicle back on the road with confidence.