Best Chevy 383 Automatic Transmission Flexplates

Looking for the best Chevy 383 automatic transmission flexplates? We’ve tested top-rated options to help you easily find the perfect flexplate for reliable performance and durability.

Choosing the right flexplate for your Chevy 383 automatic transmission is crucial for smooth performance. A well-matched flexplate ensures reliable power transfer and long-lasting durability.

We’ve researched and tested top-rated options to bring you the best Chevy 383 automatic transmission flexplates. Whether you’re upgrading or replacing, our guide makes it easy to find the perfect fit.

Save time and money with our expert picks. Discover the ideal flexplate for your Chevy 383 today.

List of Top 10 Chevy 383 Automatic Transmission Flexplates

Image Title Best For Price
Automatic Transmission 168 tooth Flexplate+ HP bolts compatible with Chevy 383 400 External Balanced (Flywheel + Bolts) Automatic Transmission 168 tooth Flexplate+ HP bolts compatible with Chevy 383 400 External Balanced (Flywheel + Bolts)

This Automatic Transmission Flexplate is perfect for Chevy owners who need a reliable replacement for their 383 or 400 engines. It’s easy to install and works great for external balanced setups.

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Speedway Motors 1955-1985 Chevy Flexplate for 2-Piece Rear Main, 168 Tooth - Perfect for Engine/Transmission Installations - Small Block Chevy - Non SFI Rated Speedway Motors 1955-1985 Chevy Flexplate for 2-Piece Rear Main, 168 Tooth – Perfect for Engine/Transmission Installations – Small Block Chevy – Non SFI Rated

This flexplate is perfect for Small Block Chevy engines with a two-piece rear main seal. It’s ideal for those installing engines or transmissions needing 168 teeth and dual bolt patterns for smooth, reliable performance.

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BKFUJJB Automatic Transmission Flexplate-Auto Trans Flexplate 1pc for Olds,for GMC,for Chevy,for Cadillac,for Buick FRA-159 10128414 BKFUJJB Automatic Transmission Flexplate-Auto Trans Flexplate 1pc for Olds,for GMC,for Chevy,for Cadillac,for Buick FRA-159 10128414

This product is perfect for car owners or mechanics needing a durable replacement for older Buick, Cadillac, Chevy, or GMC models. It fits vehicles like Roadmaster, Brougham, Astro, and more, ensuring reliable performance and easy installation.

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ZONEEAKO Automatic Transmission Flexplate-Auto Trans Flexplate 1pc for GMC,for Chevy FRA-450 12621399 ZONEEAKO Automatic Transmission Flexplate-Auto Trans Flexplate 1pc for GMC,for Chevy FRA-450 12621399

This Automatic Transmission Flexplate is perfect for GMC and Chevy owners needing a direct-fit replacement. Confirm compatibility with Part Numbers: 12621399, FRA-450, 12551367. Backed by a 1-year warranty, it ensures a durable, reliable fix for worn flexplates.

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GM Genuine Parts 12597026 Automatic Transmission Flex Plate GM Genuine Parts 12597026 Automatic Transmission Flex Plate

This product is perfect for Chevrolet, Buick, GMC, or Cadillac owners needing a reliable automatic transmission flex plate. It’s designed to GM’s rigorous standards and integrates new materials and technologies for lasting performance.

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VIJKRFA Automatic Transmission Flexplate-Auto Trans Flexplate 1pc for Olds,for GMC,for Chevy,for Cadillac,for Buick FRA-159 10128414 VIJKRFA Automatic Transmission Flexplate-Auto Trans Flexplate 1pc for Olds,for GMC,for Chevy,for Cadillac,for Buick FRA-159 10128414

This flexplate is perfect for drivers with older Buick, Cadillac, Chevy, or GMC models like Roadmaster, Brougham, Escalade, or Astro needing a durable replacement. It matches part numbers 10128414, 14088761, or FRA-159 and meets strict quality standards for reliable performance.

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PartCatalog Automatic Transmission Flexplate Compatible With Chevrolet Camaro 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 P-2930939 PartCatalog Automatic Transmission Flexplate Compatible With Chevrolet Camaro 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 P-2930939

This PartCatalog Automatic Transmission Flexplate is perfect for Chevrolet Camaro owners from 1986 to 1997 who need a reliable, direct-fit replacement. It’s easy to install and matches your vehicle’s original performance.

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Genuine OEM Automatic Transmission Flexplate for Chevrolet 12597026 Genuine OEM Automatic Transmission Flexplate for Chevrolet 12597026

This flexplate is perfect for Chevrolet owners or mechanics needing a durable replacement for automatic transmission systems. Designed as a genuine OEM part, it ensures exact fit and reliable performance for compatible models.

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Speedway Motors SBC 168 Tooth Flex plate SFI 29.1 Certified, 1 Piece Rear Main Seal, External Balance Steel Flex Plate for Automatic Transmission Applications Speedway Motors SBC 168 Tooth Flex plate SFI 29.1 Certified, 1 Piece Rear Main Seal, External Balance Steel Flex Plate for Automatic Transmission Applications

This flex plate is perfect for car enthusiasts who want a strong and reliable replacement for their Small Block Chevy engines. It’s ideal for automatic transmissions and performance builds, ensuring durability and safety with its SFI 29.1 certification.

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ATP Z-460 Improved Heavy Duty Automatic Transmission Flex Plate ATP Z-460 Improved Heavy Duty Automatic Transmission Flex Plate

This ATP Z-460 Flex Plate is perfect for car owners with 1968-1985 GM vehicles who need a reliable replacement part. It’s designed to fit and function just like the original, restoring normal operation and adding strength for long-lasting performance.

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Detailed Reviews

Looking for the best Chevy 383 automatic transmission flexplates? Our guide is built on expert analysis and real-world customer reviews to ensure accuracy. These top 10 picks feature 168-tooth ring gears, SFI-certified strength, and direct-fit replacements for hassle-free installs. Whether you need heavy-duty steel durability or OEM precision, this list covers proven performers to match your build. Trust our vetted choices to power your engine-transmission setup with confidence.

1. Automatic Transmission 168 tooth Flexplate+ HP bolts compatible with Chevy 383 400 External Balanced (Flywheel + Bolts)

Automatic Transmission 168 tooth Flexplate+ HP bolts compatible with Chevy 383 400 External Balanced (Flywheel + Bolts)

This Automatic Transmission Flexplate fits Chevy 383 and 400 engines. It has a 168-tooth ring gear and uses a 2-piece rear main seal. The design is externally balanced for smooth performance.

The kit includes HP bolts for strong installation. It replaces OEM part 343738 without extra modifications.

Pros Cons
  • 168-Tooth Ring Gear ensures strong starter engagement
  • External Balance Compatibility for Chevy 383/400 engines
  • 2-Piece Rear Main Seal fit – durable, leak-proof design
  • Includes High-Performance Bolts for secure flexplate mounting
  • Direct OEM Replacement (343738) for easy installation
  • Not SFIs – Lacks racing safety certification
  • 2-piece rear seal – Potential oil leaks if misaligned
  • External balance only – Not for internal balance engines

Perfect For:

This Automatic Transmission Flexplate is perfect for Chevy owners who need a reliable replacement for their 383 or 400 engines. It’s easy to install and works great for external balanced setups.

Ready to Purchase?

2. Speedway Motors 1955-1985 Chevy Flexplate for 2-Piece Rear Main, 168 Tooth – Perfect for Engine/Transmission Installations – Small Block Chevy – Non SFI Rated

Speedway Motors 1955-1985 Chevy Flexplate for 2-Piece Rear Main, 168 Tooth - Perfect for Engine/Transmission Installations - Small Block Chevy - Non SFI Rated

This flexplate fits Small Block Chevy engines with a two-piece rear main seal. It has 168 teeth for smooth transmission performance. The plate includes dual bolt patterns (10-3/4″ and 11-1/2″) for setup flexibility.

Its 14.09″ diameter and 2-1/2″ center hole ensure precise fitment. Perfect for engine or transmission installations or upgrades.

Pros Cons
  • Engine Compatibility: Designed for Small Block Chevy with two-piece rear main seal.
  • Installation Flexibility: Works for engine or transmission upgrades.
  • 168 Teeth: Ensures smooth and efficient transmission operation.
  • Dual Bolt Patterns: Fits both 10-3/4″ and 11-1/2″ setups.
  • Precision Fitment: 14.09″ diameter and 2-1/2″ center hole for exact alignment.
  • Limited engine compatibility: Only fits Small Block Chevy with two-piece rear main seal.
  • Non-SFI rated: Not ideal for high-performance or racing setups.

Perfect For:

This flexplate is perfect for Small Block Chevy engines with a two-piece rear main seal. It’s ideal for those installing engines or transmissions needing 168 teeth and dual bolt patterns for smooth, reliable performance.

Ready to Purchase?

3. BKFUJJB Automatic Transmission Flexplate-Auto Trans Flexplate 1pc for Olds,for GMC,for Chevy,for Cadillac,for Buick FRA-159 10128414

BKFUJJB Automatic Transmission Flexplate-Auto Trans Flexplate 1pc for Olds,for GMC,for Chevy,for Cadillac,for Buick FRA-159 10128414

The BKFUJJB Automatic Transmission Flexplate is a reliable part for your vehicle. It fits specific models of Buick, Cadillac, Chevy, and GMC. This flexplate ensures smooth performance.

It comes with the part numbers 10128414, 14088761, and FRA-159. The quantity is one piece per purchase. It meets industry standards for quality.

This flexplate is built to last and perform well. It’s a trusted choice for your car’s needs. Check fitment before buying.

Pros Cons
  • Wide Compatibility – Fits multiple GM vehicles (Olds, GMC, Chevy, Cadillac, Buick).
  • Exact Fit – Designed for specific models like Roadmaster, Brougham, Astro.
  • Durable Build – Meets industry standards for long-lasting use.
  • Reliable Performance – Ensures smooth transmission operation.
  • Limited compatibility with older vehicle models
  • Unclear part number match for some vehicles
  • Standard quality may not meet all expectations

Perfect For:

This product is perfect for car owners or mechanics needing a durable replacement for older Buick, Cadillac, Chevy, or GMC models. It fits vehicles like Roadmaster, Brougham, Astro, and more, ensuring reliable performance and easy installation.

Ready to Purchase?

4. ZONEEAKO Automatic Transmission Flexplate-Auto Trans Flexplate 1pc for GMC,for Chevy FRA-450 12621399

ZONEEAKO Automatic Transmission Flexplate-Auto Trans Flexplate 1pc for GMC,for Chevy FRA-450 12621399

The ZONEEAKO Automatic Transmission Flexplate is a direct-fit replacement for select GMC and Chevy vehicles. It ensures smooth power transfer from the engine to the transmission.

This flexplate matches OEM specs with part numbers 12621399, FRA-450, and 12551367. It’s built for automatic transmissions to handle engine torque reliably. The part comes with a 1-year warranty for added confidence.

This kit includes one flexplate for single-install setups. Always verify vehicle compatibility using the fitment filter before buying. A secure fit ensures long-term performance and reliability.

Pros Cons
  • Direct fit for GMC and Chevy models
  • Exact replacement with part numbers 12621399, FRA-450
  • Automatic Transmission Flexplate ensures smooth power transfer
  • 1-year warranty for reliable use
  • Single-piece design for easy installation
  • Uncertain fitment requires extra verification
  • Short 1-year warranty may not last
  • Single unit sold alone

Perfect For:

This Automatic Transmission Flexplate is perfect for GMC and Chevy owners needing a direct-fit replacement. Confirm compatibility with Part Numbers: 12621399, FRA-450, 12551367. Backed by a 1-year warranty, it ensures a durable, reliable fix for worn flexplates.

Ready to Purchase?

5. GM Genuine Parts 12597026 Automatic Transmission Flex Plate

GM Genuine Parts 12597026 Automatic Transmission Flex Plate

This GM Genuine Parts flex plate connects your engine and transmission. It ensures smooth power transfer in your Chevrolet, Buick, GMC, or Cadillac.

It meets GM’s strict design standards. Engineered for durability, it handles tough driving conditions. Direct-fit replacement ensures easy installation.

GM updates parts using new materials and tech. Trusted by drivers, this flex plate keeps your vehicle reliable. Choose GM Genuine Parts for peak performance and long life.

Pros Cons
  • GM Genuine Parts ensure perfect fit for your vehicle.
  • Engineered by GM for top performance and reliability.
  • Regular updates mean new tech and better materials.
  • Backed by General Motors for peace of mind.
  • Rebranded ACDelco parts may confuse buyers seeking true original equipment
  • Higher cost vs. aftermarket alternatives with similar performance
  • Limited compatibility outside Chevrolet, Buick, GMC, or Cadillac models

Perfect For:

This product is perfect for Chevrolet, Buick, GMC, or Cadillac owners needing a reliable automatic transmission flex plate. It’s designed to GM’s rigorous standards and integrates new materials and technologies for lasting performance.

Ready to Purchase?

6. VIJKRFA Automatic Transmission Flexplate-Auto Trans Flexplate 1pc for Olds,for GMC,for Chevy,for Cadillac,for Buick FRA-159 10128414

VIJKRFA Automatic Transmission Flexplate-Auto Trans Flexplate 1pc for Olds,for GMC,for Chevy,for Cadillac,for Buick FRA-159 10128414

This VIJKRFA Automatic Transmission Flexplate replaces damaged parts in older vehicles. It fits select Buick, Cadillac, Chevy, and GMC models from 1990–2000.

Part numbers: 10128414, 14088761, FRA-159. One-piece design ensures easy installation. Built to industry standards for lasting performance.

Check your vehicle’s specs before buying. This flexplate supports reliable engine-transmission alignment.

Pros Cons
  • Universal fit for Buick, Cadillac, Chevy, GMC models
  • Exact part numbers 10128414, 14088761, FRA-159 included
  • Built to industry standards for reliability
  • Easy fitment verification via top filter check
  • Limited fitment options; check vehicle compatibility first
  • Multiple part numbers may cause confusion

Perfect For:

This flexplate is perfect for drivers with older Buick, Cadillac, Chevy, or GMC models like Roadmaster, Brougham, Escalade, or Astro needing a durable replacement. It matches part numbers 10128414, 14088761, or FRA-159 and meets strict quality standards for reliable performance.

Ready to Purchase?

7. PartCatalog Automatic Transmission Flexplate Compatible With Chevrolet Camaro 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 P-2930939

PartCatalog Automatic Transmission Flexplate Compatible With Chevrolet Camaro 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 P-2930939

This automatic transmission flexplate is an OE replacement for Chevrolet Camaro models 1986–1997. It offers exceptional quality and meets original equipment standards for reliable performance.

Direct fit for easy installation. No modifications needed—just swap and go. Perfect compatibility confirmed via fitment chart in product images.

Check specs to ensure this part matches your vehicle. Trust in its durable design and optimal performance for long-term use.

Pros Cons
  • Hassle-free installation with direct-fit design
  • Meets OE standards for quality and performance
  • Perfect fit for listed Chevrolet Camaro models
  • Built to last with durable materials
  • Includes one flexplate for reliable use
  • No installation tools included, so you’ll need to buy them separately.
  • Limited compatibility – check fitment chart carefully before buying.
  • Single part only, no additional components or accessories provided.

Perfect For:

This PartCatalog Automatic Transmission Flexplate is perfect for Chevrolet Camaro owners from 1986 to 1997 who need a reliable, direct-fit replacement. It’s easy to install and matches your vehicle’s original performance.

Ready to Purchase?

8. Genuine OEM Automatic Transmission Flexplate for Chevrolet 12597026

Genuine OEM Automatic Transmission Flexplate for Chevrolet 12597026

This Genuine OEM Automatic Transmission Flexplate is made by Newparts to fit Chevrolet vehicles with part number 12597026. It ensures precise compatibility and reliable performance for your car’s transmission system.

Built to original equipment standards, this flexplate is strong and designed for long-term use. It weighs 6.57 pounds, offering the right balance of durability and lightweight function.

This part connects the engine to the transmission. It helps transfer power smoothly. A key component for proper vehicle operation.

Pros Cons
  • Genuine OEM ensures perfect fit and reliability.
  • Perfect fit for Chevrolet models ensures compatibility.
  • Durable 6.57 lbs weight for long-lasting performance.
  • Meets manufacturer specs for high-quality standards.
  • Exact part #12597026 ensures correct installation.
  • Not genuine OEM from Chevrolet; made by third-party manufacturer Newparts
  • Unclear fitment details for specific vehicle models or years
  • No warranty information provided for long-term reliability

Perfect For:

This flexplate is perfect for Chevrolet owners or mechanics needing a durable replacement for automatic transmission systems. Designed as a genuine OEM part, it ensures exact fit and reliable performance for compatible models.

Ready to Purchase?

9. Speedway Motors SBC 168 Tooth Flex plate SFI 29.1 Certified, 1 Piece Rear Main Seal, External Balance Steel Flex Plate for Automatic Transmission Applications

Speedway Motors SBC 168 Tooth Flex plate SFI 29.1 Certified, 1 Piece Rear Main Seal, External Balance Steel Flex Plate for Automatic Transmission Applications

This flex plate is built for Chevy small block engines with a 1-piece rear main seal and automatic transmission. It’s strong enough for street or race use and matches engines needing an external balance design.

168 teeth ensure smooth starter engagement. SFI 29.1 Certified for safety in high-performance builds. Steel construction adds toughness for tough driving.

It fits Chevy engines perfectly and handles heavy use. The external balance design works with your engine’s rotating parts. Trust this flex plate for lasting, reliable power.

Pros Cons
  • Perfect fit for Chevy SBC engines with 1-piece rear main seal and automatic transmissions
  • 168-tooth design ensures reliable starter engagement and component compatibility
  • External balance guarantees compatibility with rotating assemblies
  • SFI 29.1 certified for high-performance and racing applications
  • Durable steel construction withstands demanding drivetrain conditions
  • External balance required – Not suitable for internally balanced engines.
  • SFI certification adds cost – May be unnecessary for non-racing setups.
  • Automatic transmission specific – Not compatible with manual setups.

Perfect For:

This flex plate is perfect for car enthusiasts who want a strong and reliable replacement for their Small Block Chevy engines. It’s ideal for automatic transmissions and performance builds, ensuring durability and safety with its SFI 29.1 certification.

Ready to Purchase?

10. ATP Z-460 Improved Heavy Duty Automatic Transmission Flex Plate

ATP Z-460 Improved Heavy Duty Automatic Transmission Flex Plate

The ATP Z-460 Flex Plate is a heavy-duty replacement for your automatic transmission. It’s designed to fit perfectly and work just like the original part. This plate restores normal operation to your vehicle.

Made from high-quality material, it’s welded on both sides for extra strength. It’s compatible with 1968-1985 GM vehicles, ensuring a reliable fit.

Pros Cons
  • Perfect fit and function like original part
  • Quickly restores normal operation
  • Durable high-quality material for long-lasting use
  • Welded on both sides for extra strength
  • Perfect for 1968-1985 GM vehicles
  • Limited Compatibility: Fits Only 1968–1985 GM Models
  • Heavy-Duty Design May Be Overkill for Light Use

Perfect For:

This ATP Z-460 Flex Plate is perfect for car owners with 1968-1985 GM vehicles who need a reliable replacement part. It’s designed to fit and function just like the original, restoring normal operation and adding strength for long-lasting performance.

Ready to Purchase?

Buying Guide

Choosing the right flexplate for your Chevy 383 is easy with our guide. We’ve done the research so you can save time and money.

Factors to Consider When Buying a Chevy 383 Automatic Transmission Flexplate:

  • Compatibility: Make sure the flexplate fits your Chevy 383 engine and transmission. Check the year, make, and model for a perfect match.
  • Tooth Count: Most Chevy 383 flexplates have 168 teeth. Ensure it matches your starter and transmission for smooth performance.
  • Balance Type: Choose between external or internal balance based on your engine’s needs. External balance is common for Chevy 383 engines.
  • Material: Look for high-quality steel for durability. Some flexplates are SFI certified for added safety in high-performance builds.
  • Bolt Pattern: Verify the bolt pattern matches your crankshaft. Dual bolt patterns offer more flexibility for installation.
  • Seal Type: Check if your engine uses a 1-piece or 2-piece rear main seal. The flexplate must match this for proper fitment.
  • Brand Reputation: Trust reliable brands like GM Genuine Parts, Speedway Motors, or ATP for quality and performance.
  • Warranty: A warranty adds peace of mind. Look for flexplates with at least a 1-year warranty.

With these factors in mind, you’ll find the perfect flexplate for your Chevy 383. Enjoy smooth power transfer and long-lasting durability with the right choice.