Hays® 12-071 Steel SFI Certified Flexplate
Hays® 12-071 Steel SFI Certified Flexplate


Hays® (92-23) Mustang Steel SFI Certified 164 Tooth Flexplate

Regular price £121.68 Sale price£109.51
Shipping calculated at checkout.
  • In stock, ready to ship
  • Question? Call us at (888) 257-1077 🏁
  • Free Shipping USA (Exc. HI, AK, PR)

Compatible: (4.6L/5.0L/5.4L/5.8L)

1992 - 2004 Ford Mustang

2011 - 2021 Ford Mustang


This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.


Hays heavy-duty flexplates for high performance and competition engines are constructed of a thicker than stock steel plate, enabling them to withstand the stress of high-stall torque converters and high-RPM engines. While factory stock plates tend to crack around the crankshaft hub when punished under high torque and RPM conditions, the thicker Hays flexplate handles the force. These H.D. flexplates are supplied with a ring gear that is securely welded in place and feature dual bolt patterns for use with either a Powerglide or Turbo-Hydromatic torque converter. All Hays heavy-duty flexplates are zinc-dichromate plated to resist corrosion and are SFI certified under specification 29.1.
  • Securely welded ring gear and zinc dichromate plated to resist rust and corrosion
  • Meets SFI specification 29.1 for racing
  • For 8-bolt crankshaft
  • Constructed of thicker than stock steel plate to withstand the stress of high stall speed converters and high RPM enginge



# of Teeth 164
Application Ford Modular V8 engines
Brand Hays
Center Bore (Register Diameter) 1.750"
Emission Code 5
Engine Balance Internal
Material Steel
Product Type Flexplate
SFI Certification 29.1
Warranty 90 Day
Part Number 12-071






This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Based on 5 reviews
Carbon Creations® (08-23) Challenger Redeye Style Rear Spoiler
John (Jersey City, New Jersey, United States)
Great Product!

Easy install and woke up my car!

Worth every penny

Works as described. I like the cruise control operation. Easy to go from fun to work mode.

10 Second Racing® Window Decal
ERIC D. (Atlanta, Georgia, United States)

It's great!!

Not a fit

Unfortunately the belt did not fit, it was was too long, my fruend had a 2018 SRT, he had the same problem with his order.
The transaction process was easy, the belt seems like good quality, too bad it didn't fit

BBK® (16-23) Camaro SS Power-Plus Series® Cold Air Intake System
Mahari H. (El Cerrito, California, United States)

BBK® (16-23) Camaro SS Power-Plus Series® Cold Air Intake System