TOP 10 BEST AUTOMOTIVE REPLACEMENT FLEXPLATES

The Best Automotive Replacement Flexplates of 2024

Find the top-rated automotive replacement flexplates for automatic transmissions. Compare standard, heavy-duty, and SFI-rated options for various engines.

A flexplate is a critical component in any vehicle with an automatic transmission, acting as the link between the engine’s crankshaft and the torque converter. When this part fails—often due to wear, high horsepower, or material fatigue—it can lead to serious transmission issues and prevent your vehicle from starting. Replacing a faulty flexplate with a high-quality unit is essential for maintaining performance and reliability.

We’ve compiled a list of the best automotive replacement flexplates available on the market, ranging from reliable OEM-style replacements to heavy-duty and SFI-rated options designed for high-performance applications. Whether you're restoring a classic Chevy or maintaining a daily driver, finding the right flexplate for your specific engine and transmission configuration is key.

Browse our selection to find durable, precision-engineered flexplates that ensure smooth power transfer and longevity for your automatic transmission system.

01
ATP Automotive Z-111 Automatic Transmission Flywheel Flex-Plate

ATP Automotive Z-111 Automatic Transmission Flywheel Flex-Plate

ATP

4.3 (305 reviews)
  • OEM-style replacement for factory fit and function
  • Durable construction for reliable performance
  • Designed to fit specific automatic transmission applications
  • Highly rated and popular choice for standard repairs
02
Allstar Performance Flexplate, 168 Tooth, SFI 29.1, Steel, Internal Balance, 2-Piece Seal, compatible with Chevy V8, Each

Allstar Performance Flexplate, 168 Tooth, SFI 29.1, Steel, Internal Balance, 2-Piece Seal, compatible with Chevy V8, Each

Allstar

4.3 (144 reviews)
  • SFI 29.1 certified for racing and high-performance use
  • Constructed from high-strength steel for maximum durability
  • 168 tooth count, suitable for Chevy V8 engines
  • Internal balance design for specific engine configurations
03
ATP Automotive ATP Z-269 Automatic Transmission Flywheel Flex-Plate

ATP Automotive ATP Z-269 Automatic Transmission Flywheel Flex-Plate

ATP

4.4 (123 reviews)
  • Precision-engineered for specific vehicle applications
  • Ensures proper alignment between crankshaft and torque converter
  • Made from high-quality materials for long service life
  • Direct fit replacement, simplifying installation
04
PRW 1835001 SFI-Rated Internal Balance 168 Teeth Chromoly Steel Flexplate for Chevy 1957-85, 90 Early, V6, Gold Irridate

PRW 1835001 SFI-Rated Internal Balance 168 Teeth Chromoly Steel Flexplate for Chevy 1957-85, 90 Early, V6, Gold Irridate

PRW

4.5 (70 reviews)
  • SFI-rated, ideal for drag racing and high-RPM engines
  • Made from robust Chromoly steel for superior strength
  • Internal balance design for specific Chevy V6/V8 applications
  • Attractive Gold Irridate finish for corrosion resistance
05
ATP Automotive Z-136 Automatic Transmission Flywheel Flex-Plate

ATP Automotive Z-136 Automatic Transmission Flywheel Flex-Plate

ATP

3.4 (35 reviews)
  • Affordable and reliable replacement option
  • Designed to meet or exceed OEM specifications
  • Helps restore proper engine starting and transmission function
  • Tested for fitment and structural integrity
06
GM Genuine Parts 12654640 LS Pattern 6-Bolt Crankshaft Flexplate

GM Genuine Parts 12654640 LS Pattern 6-Bolt Crankshaft Flexplate

GM

4.3 (17 reviews)
  • Genuine GM OEM part ensures perfect factory fit
  • Specifically designed for LS pattern 6-bolt crankshafts
  • High-quality construction for durability in modern engines
  • Ideal for maintaining vehicle originality and warranty
07
PRW 1845400 SFI-Rated External 168 Teeth Balance Chromoly Steel Flexplate for Chevy 454 1970-90, Early, White Zinc

PRW 1845400 SFI-Rated External 168 Teeth Balance Chromoly Steel Flexplate for Chevy 454 1970-90, Early, White Zinc

PRW

4.5 (90 reviews)
  • SFI-rated for extreme performance and safety standards
  • External balance design required for specific Chevy 454 engines
  • Constructed from durable Chromoly steel
  • 168 tooth configuration for specific starter engagement
08
Speedway Motors 168 Tooth Flexplate for 1986-1997 SBC with 1-Piece Rear Main Seal, External Balance Replacement for 305/350 Engines, Ideal for Engine or Transmission Installs

Speedway Motors 168 Tooth Flexplate for 1986-1997 SBC with 1-Piece Rear Main Seal, External Balance Replacement for 305/350 Engines, Ideal for Engi...

Speedway

4.6 (36 reviews)
  • Designed specifically for 1986-1997 Small Block Chevy (SBC)
  • External balance required for 305/350 engines with 1-piece RMS
  • 168 tooth count for reliable starter engagement
  • Excellent value for engine or transmission swap projects
09
ATP Automotive Z-271 Automatic Transmission Flywheel Flex-Plate

ATP Automotive Z-271 Automatic Transmission Flywheel Flex-Plate

ATP

4.4 (8 reviews)
  • Reliable OEM-grade construction
  • Ensures precise rotational balance for smooth operation
  • Corrosion-resistant finish for extended life
  • Specific fitment for various automatic transmission models
10
ATP Z-460 Improved Heavy Duty Automatic Transmission Flex Plate

ATP Z-460 Improved Heavy Duty Automatic Transmission Flex Plate

ATP

3.5 (29 reviews)
  • Improved heavy-duty design over standard OEM plates
  • Increased thickness and strength for greater torque capacity
  • Ideal for towing or modified street vehicles
  • Designed to resist cracking and failure under stress

Frequently Asked Questions

What are the symptoms of a bad flexplate?

Common symptoms include a loud, metallic rattling or scraping noise coming from the transmission bellhousing (especially at idle), difficulty starting the engine, or a vibration that increases with engine RPM.

Is a flexplate the same as a flywheel?

No. While they serve a similar purpose (connecting the engine to the transmission and providing a surface for the starter), a flexplate is used with automatic transmissions and is a thin, stamped metal plate. A flywheel is a heavy, thick disc used with manual transmissions.

How long does it take to replace a flexplate?

Flexplate replacement is labor-intensive because it requires removing the transmission from the vehicle. Depending on the vehicle and mechanic experience, the job typically takes between 4 to 8 hours.

Final Thoughts

Choosing the right replacement flexplate is crucial for the health and performance of your automatic transmission. Whether you need the budget-friendly reliability of an ATP unit or the extreme strength of an SFI-rated Chromoly plate from PRW or Allstar, our curated list offers the best options available. Don't compromise on this vital link between your engine and drivetrain—select a high-quality flexplate today and ensure smooth, reliable power delivery for years to come.