SKU: 85699670043

Hays Steel SFI Certified Flexplate - GM LS Engines - 40-508

Sale price$137.67 Regular price$152.97
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Description

Hays Steel SFI Certified Flexplate - GM LS Engines - 40-508Overview: Hays SFI Approved heavy duty flexplates for 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 4mm thick center plate utilized on a Hays flexplate handles the brute force. These flexplates are supplied with a precision double

Overview:

Hays SFI Approved heavy duty flexplates for 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 4mm thick center plate utilized on a Hays flexplate handles the brute force. These flexplates are supplied with a precision double welded ring gear and feature multiple engine and transmission bolt patterns. All Hays flexplates are zinc-dichromate plated to resist corrosion and are SFI certified under specification 29.1.

Features:

  • SFI-approved - legal for use in racing classes that require SFI certification
  • Flexplate features a precision double welded ring gear
  • Has 4mm thick center plate to resist cracking near crankshaft flange
  • Zinc-dichromate plated to resist corrosion
  • CAD designed to provide optimum performance and reliability
  • Available in Internal or External balanced versions
  • Applications offered for a wide variety of engine and transmission bolt patterns

 

Application:

Year Make Model Submodel Engine Size
2008 - 2013 Chevrolet Corvette Base 376/6.2L V8
2001 - 2006 Chevrolet Silverado 2500 HD LS 403/6.6L V8
2001 - 2005 Chevrolet Silverado 2500 HD Base 364/6.0L V8
2004 Chevrolet Silverado 1500 LS 364/6.0L V8
2004 Chevrolet Silverado 1500 Z71 325/5.3L V8
1999 - 2006 Chevrolet Silverado 1500 LT 325/5.3L V8
1999 - 2005 Chevrolet Silverado 1500 Base 325/5.3L V8
2001 - 2006 Chevrolet Silverado 3500 LS 403/6.6L V8
2001 - 2006 Chevrolet Silverado 3500 LT 364/6.0L V8
2001 - 2006 Chevrolet Silverado 3500 LS 364/6.0L V8
2003 - 2006 Chevrolet Silverado 2500 HD WT 364/6.0L V8
2001 - 2005 Chevrolet Silverado 3500 Base 403/6.6L V8
2001 - 2005 Chevrolet Silverado 3500 Base 364/6.0L V8
2012 - 2017 Chevrolet Camaro ZL1 376/6.2L V8
2001 - 2006 Chevrolet Silverado 3500 LT 403/6.6L V8
2001 - 2005 Chevrolet Silverado 2500 HD Base 403/6.6L V8
2004 Chevrolet Silverado 1500 LT 364/6.0L V8
2001 - 2006 Chevrolet Silverado 2500 HD LT 403/6.6L V8
2001 - 2006 Chevrolet Silverado 2500 HD LS 364/6.0L V8
2014 - 2017 Chevrolet Corvette Stingray 376/6.2L V8
2015 - 2017 Chevrolet Corvette Z06 376/6.2L V8
2009 - 2012 Chevrolet Colorado LT 325/5.3L V8
2014 - 2015 Chevrolet Camaro Z/28 427/7.0L V8
2004 - 2006 Chevrolet C5500 Kodiak C5E042 403/6.6L V8
2005 - 2006 Chevrolet C5500 Kodiak C5E044 403/6.6L V8
2007 Chevrolet Silverado 3500 Classic LS 364/6.0L V8
2007 Chevrolet Silverado 3500 Classic LT 364/6.0L V8
2007 Chevrolet Silverado 2500 HD Classic LT 364/6.0L V8
1999 - 2000 Chevrolet Silverado 2500 Base 325/5.3L V8
1999 - 2004 Chevrolet Silverado 2500 Base 364/6.0L V8
1999 - 2000 Chevrolet Silverado 2500 LS 325/5.3L V8
1999 - 2000 Chevrolet Silverado 2500 LT 325/5.3L V8
1999 - 2004 Chevrolet Silverado 2500 LS 364/6.0L V8
2014 - 2016 Chevrolet Corvette Z51 376/6.2L V8
2007 Chevrolet Silverado 2500 HD Classic LS 364/6.0L V8
2005 - 2007 Chevrolet Corvette Base 364/6.0L V8
2001 - 2006 Chevrolet Silverado 2500 HD LT 364/6.0L V8
2004 - 2006 Chevrolet Silverado 3500 WT 364/6.0L V8
2002 - 2006 Chevrolet Silverado 1500 WT 325/5.3L V8
2010 - 2017 Chevrolet Camaro SS 376/6.2L V8
1999 - 2006 Chevrolet Silverado 1500 LS 325/5.3L V8
2004 - 2006 Chevrolet C4500 Kodiak C4E042 403/6.6L V8
2005 - 2006 Chevrolet C4500 Kodiak C4E044 403/6.6L V8
2004 - 2006 Chevrolet C4500 Kodiak C4V042 403/6.6L V8
2011 Chevrolet Corvette Z06 Carbon 427/7.0L V8
2006 - 2013 Chevrolet Corvette Z06 427/7.0L V8
2009 - 2013 Chevrolet Corvette ZR1 376/6.2L V8
2007 Chevrolet Silverado 1500 Classic LS 325/5.3L V8
2007 Chevrolet Silverado 1500 Classic LT 325/5.3L V8
2007 Chevrolet Silverado 3500 Classic WT 364/6.0L V8
2007 Chevrolet Silverado 2500 HD Classic WT 364/6.0L V8
1999 - 2004 Chevrolet Silverado 2500 LT 364/6.0L V8
2011 - 2012 Chevrolet Camaro 1SS 376/6.2L V8
2010 - 2017 Chevrolet Corvette Grand Sport 376/6.2L V8
2004 - 2006 Chevrolet Silverado 1500 Hybrid 325/5.3L V8
2004 - 2006 Chevrolet Silverado 3500 WT 403/6.6L V8
2004 - 2006 Chevrolet Silverado 2500 HD WT 403/6.6L V8
2004 Chevrolet Silverado 2500 WT 364/6.0L V8
2011 - 2012 Chevrolet Camaro 2SS 376/6.2L V8
2004 - 2006 Chevrolet C4500 Kodiak C4C042 403/6.6L V8
2005 - 2006 Chevrolet SSR Base 364/6.0L V8
2007 Chevrolet Silverado 1500 Classic WT 325/5.3L V8
2005 - 2006 Chevrolet C4500 Kodiak C4C044 403/6.6L V8
2004 - 2006 Chevrolet C5500 Kodiak C5C042 403/6.6L V8
2004 - 2006 Chevrolet C5500 Kodiak C5V042 403/6.6L V8
2004 - 2006 Chevrolet C5500 Kodiak C5U042 403/6.6L V8
2005 - 2006 Chevrolet C5500 Kodiak C5C044 403/6.6L V8
2015 - 2017 Chevrolet SS Base 376/6.2L V8
2013 Chevrolet Corvette 427 427/7.0L V8
2007 Chevrolet Silverado 3500 Classic LS 403/6.6L V8
2007 Chevrolet Silverado 2500 HD Classic LT 403/6.6L V8
2007 Chevrolet Silverado 2500 HD Classic LS 403/6.6L V8
2007 Chevrolet Silverado 3500 Classic LT 403/6.6L V8
2007 Chevrolet Silverado 2500 HD Classic WT 403/6.6L V8
2008 Chevrolet Corvette 427 Limited Edition Z06 427/7.0L V8
2004 - 2006 Chevrolet C4500 Kodiak C4U042 403/6.6L V8
2007 Chevrolet Silverado 3500 Classic WT 403/6.6L V8
2002 Chevrolet Silverado 1500 HD LT 364/6.0L V8
2007 Chevrolet Silverado 1500 Classic Hybrid 325/5.3L V8
2004 Chevrolet Silverado 1500 SS 364/6.0L V8
2002 Chevrolet Silverado 1500 HD LS 364/6.0L V8
1999 - 2000 Chevrolet K3500 LS 350/5.7L V8
1999 - 2000 Chevrolet K3500 LS 395/6.5L V8
1997 - 1998 Chevrolet K3500 Silverado 395/6.5L V8
1997 - 1998 Chevrolet K3500 Silverado 350/5.7L V8
1997 - 1998 Chevrolet K3500 Cheyenne 395/6.5L V8
1997 - 1998 Chevrolet K3500 Cheyenne 350/5.7L V8
1997 - 2000 Chevrolet K3500 Base 350/5.7L V8
1999 - 2000 Chevrolet K2500 LS 395/6.5L V8
1998 Chevrolet K2500 Cheyenne 305/5.0L V8
1997 - 1998 Chevrolet K2500 Silverado 350/5.7L V8
1997 - 2000 Chevrolet K2500 Base 395/6.5L V8
1997 - 1998 Chevrolet K2500 Cheyenne 350/5.7L V8
1997 - 1998 Chevrolet K2500 Cheyenne 395/6.5L V8
1999 - 2005 Chevrolet Silverado 1500 Base 294/4.8L V8
1999 - 2006 Chevrolet Silverado 1500 LS 294/4.8L V8
1997 - 1999 Chevrolet P30 Base 395/6.5L V8
2002 - 2006 Chevrolet Silverado 1500 WT 294/4.8L V8
1999 - 2006 Chevrolet Silverado 1500 LT 294/4.8L V8
1997 - 1998 Chevrolet K1500 Silverado 305/5.0L V8
1997 - 1998 Chevrolet K1500 Silverado 350/5.7L V8
1997 - 1998 Chevrolet K1500 Cheyenne 395/6.5L V8
1997 - 1998 Chevrolet K1500 WT 305/5.0L V8
1998 - 2002 Chevrolet Camaro Z28 SS 350/5.7L V8
1997 - 1999 Chevrolet C2500 400 SS 350/5.7L V8
1997 - 1999 Chevrolet C2500 Custom 350/5.7L V8
1997 - 2004 Chevrolet Corvette Base 350/5.7L V8
1997 - 2002 Chevrolet Camaro Z28 350/5.7L V8
1997 - 2002 Chevrolet C3500HD Base 395/6.5L V8
1997 - 1998 Chevrolet K2500 Silverado 305/5.0L V8
1999 - 2000 Chevrolet K2500 LS 350/5.7L V8
1997 - 2000 Chevrolet C2500 Base 395/6.5L V8
1997 - 2000 Chevrolet C2500 Base 350/5.7L V8
1997 - 1999 Chevrolet C2500 Base 305/5.0L V8
1997 - 1998 Chevrolet C1500 WT 395/6.5L V8
1997 - 1998 Chevrolet C1500 Cheyenne 350/5.7L V8
1997 - 1998 Chevrolet C1500 Cheyenne 305/5.0L V8
1997 Chevrolet C1500 Base 350/5.7L V8
1998 Chevrolet C2500 WT 350/5.7L V8
1998 Chevrolet C2500 WT 395/6.5L V8
1999 - 2000 Chevrolet C2500 LS 350/5.7L V8
1999 - 2000 Chevrolet C2500 LS 395/6.5L V8
1997 - 1998 Chevrolet C2500 Cheyenne 305/5.0L V8
1998 Chevrolet K2500 WT 350/5.7L V8
1998 Chevrolet K2500 WT 305/5.0L V8
1997 - 2000 Chevrolet K3500 Base 395/6.5L V8
1997 - 1998 Chevrolet C1500 Cheyenne 395/6.5L V8
1997 Chevrolet C1500 Base 305/5.0L V8
1997 - 2000 Chevrolet K2500 Base 350/5.7L V8
1997 - 1999 Chevrolet P30 Base 350/5.7L V8
1999 - 2000 Chevrolet C3500 LS 350/5.7L V8
1999 - 2000 Chevrolet C3500 LS 395/6.5L V8
1997 - 1998 Chevrolet C3500 Cheyenne 395/6.5L V8
1997 - 1998 Chevrolet C3500 Cheyenne 350/5.7L V8
1997 - 2000 Chevrolet C3500 Base 350/5.7L V8
2007 Chevrolet Silverado 1500 Classic LS 294/4.8L V8
1997 - 1998 Chevrolet C3500 Silverado 350/5.7L V8
1997 - 1998 Chevrolet C3500 Silverado 395/6.5L V8
1997 - 1998 Chevrolet K1500 Cheyenne 305/5.0L V8
1997 - 1998 Chevrolet K1500 Silverado 395/6.5L V8
1997 - 1998 Chevrolet K1500 Cheyenne 350/5.7L V8
1997 Chevrolet K1500 Base 305/5.0L V8
1997 Chevrolet K1500 Base 350/5.7L V8
1997 - 1998 Chevrolet K2500 Silverado 395/6.5L V8
2007 Chevrolet Silverado 1500 Classic LT 294/4.8L V8
1997 - 2000 Chevrolet C3500 Base 395/6.5L V8
1997 - 1998 Chevrolet C2500 Silverado 395/6.5L V8
1997 - 1998 Chevrolet C2500 Cheyenne 395/6.5L V8
1999 Chevrolet C2500 LS 305/5.0L V8
1997 - 1998 Chevrolet C1500 Silverado 305/5.0L V8
1997 - 1998 Chevrolet C2500 Silverado 305/5.0L V8
1997 - 1998 Chevrolet C2500 Silverado 350/5.7L V8
1997 - 1998 Chevrolet K1500 WT 395/6.5L V8
2000 - 2002 Chevrolet Silverado 2500 Cheyenne 350/5.7L V8
1997 - 1999 Chevrolet C2500 Cheyenne 350/5.7L V8
2000 - 2002 Chevrolet Silverado 2500 Custom 350/5.7L V8
2007 Chevrolet Silverado 1500 Classic WT 294/4.8L V8
1997 Chevrolet K1500 Base 395/6.5L V8
2001 - 2004 Chevrolet Corvette Z06 350/5.7L V8
1997 Chevrolet C1500 Base 395/6.5L V8
1997 - 1998 Chevrolet C1500 Silverado 395/6.5L V8
1998 Chevrolet C2500 WT 305/5.0L V8
2003 Chevrolet Corvette 50th Anniversary Edition Pace Car 350/5.7L V8
1997 - 1998 Chevrolet K1500 WT 350/5.7L V8
1997 - 1998 Chevrolet C1500 WT 350/5.7L V8
1997 - 1998 Chevrolet C1500 Silverado 350/5.7L V8
2003 Chevrolet Corvette 50th Anniversary Edition 350/5.7L V8
2000 - 2002 Chevrolet Silverado 2500 400 SS 350/5.7L V8
1998 Chevrolet Corvette Indianapolis 500 Pace Car 350/5.7L V8
1999 Chevrolet C2500 Austera 350/5.7L V8
1997 - 1998 Chevrolet C1500 WT 305/5.0L V8
2004 Chevrolet Silverado 1500 Z71 294/4.8L V8
1998 Chevrolet K2500 WT 395/6.5L V8

 

Specs:

# of Teeth 168
Application GM LS
Bolt Pattern GM 10-1/2"
Bolt Pattern GM 10-3/4"
Bolt Pattern GM 11-1/2"
Bolt Pattern GM 11-1/8"
Brand Hays
Centerplate Thickness 4 mm
Emission Code 5
Engine Balance Internal
Finish Silver
Material Steel
Product Type Flexplates
SFI Approved Yes
SFI Certification 29.1
Style Quick Launch
Warranty 90 Day
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 85699670043

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James Pease
Fort Morgan, US
★★★★★ 5
Works just like original parts
Size: 26 Pack
Bought for my euify robot vacuum. The replacement parts fit perfectly. They are exactly like the original one parts. They are long lasting. I have dogs and they get used every day.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 25, 2025
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Franklin
Whiting, US
★★★★★ 5
Great price
Size: 23 Pack
it comes with all the parts.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 11, 2026
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Yourmofc
Pawtucket, US
★★★★★ 5
Finally somebody got it right!
Size: 26 Pack
FINALLY there's a parts replacement kit for my Eufy 30C robotic with quality parts that actually fit! And a roller brush that's substantial and bristles that aren't too short to actually reach the floor! After being disappointed in so many others, this is the perfect one!
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Reviewed in the United States on September 27, 2025
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Verified Purchase
JLacNeal
Lexington, US
★★★★★ 5
Excellent!
Size: 23 Pack
Great 👍🏻! Running like it’s brand new!
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Reviewed in the United States on January 10, 2026
M
Verified Purchase
Mike
Port Orchard, US
★★★★★ 5
Excellent receiver next to the competition
Style: AVR-X2800H
Amazon has had some really good prices on the Amazon days so I bought a new receiver. Now I recently bought a AVR-S960H in 2022 which was excellent but I was needing another receiver. I originally reviewed the S960H comparing against an Onkyo back in 2022. I mistakenly stated the Onkyo was a TX-NR6100, which it was a TX-NR6050. Very similar with the NR6100 having THX and 10 more watts of power. This year I bought the Onkyo TX-NR6100 hoping it was better than the TX-NR6050 which it was in sound quality only, equaling the Denon AVR-S960H and Denon AVR-X2800H. However the Onkyo TX-NR6100 just doesn't compare with missing features, weird on-line manuals that have numerous inaccuracies, and weird, none standard Dolby decoding that is mentioned in the manuals. The biggest problem that I was hoping was corrected with a firmware update for the 2 years that passed with the TX-NR6050 was the incorrect speakers, playing the wrong dolby discrete channels. As I stated this is even mentioned in the manual as Onkyo thinks this is alright. I have a 7.1 speaker setup and listen to discrete 5.1 Dolby soundtracks of Concert Music Videos. I want to listen to the soundtrack discrete with no up mixing with a 5.1 speaker 'output'. The Onkyo's surround channel signals will only play out of the 'back' surround speakers leaving the surround speakers quiet. This is by design and acknowledged in the manual! This made the sound inferior and unacceptable to me. My Denon receivers play the surround channels correctly through the surround speakers. Then the above goes one step further in displaying the incorrect number of channels output in the on-screen display on your tv. It will say a 5.1 signal input to 7.1 speakers output. This is wrong and should say 5.1 signal input to 5.1 speakers output. Since the "back" speakers are playing, it somehow thinks that the output is 7.1 speakers when only 5.1 speakers are playing, even if it is the wrong speakers. Also the Onkyo has no HDR10+ for it's 3 inputs that aren't 8K compatible. Not good IMO. So with the quirks in the Onkyo TX-NR6100, I sent it back. I replaced it with a Denon AVR-X2800H. I could had replaced the Onkyo with a Denon AVR-S970H but I wanted the added room correction upgrade with the X2800 which is Audyssey MultiEQ XT, S970 has standard MultiEQ, no XT. Plus the X2800 in a 5.1 speaker setup will allow Speakers B to be assigned to the back surround speaker outputs or BIAMP if you have the need with your speakers. The S970 will not do that. The X2800 also has Zone 2 preamp outputs that the S970 does not. Also the X2800 has one year longer warranty than the S970. The X2800 also has 5 more watts/channel than the S970. At the time I bought during Amazon days, the X2800 was less than $200 more than the S970, so I bought the X2800. The X2800 steers the correct surround channels to the correct surround speakers unlike the Onkyo and sounds just as good if not better. I have more features and a long warranty with the Denon AVR-X2800H as well over the Onkyo. Also the Denon has HDMI 2.1 inputs for all 6 inputs and will play HDR10+ on all 6 HDMI inputs, that the Onkyo can not! I honestly have nothing to complain about the Denon. It does everything right and sounds great! It's also compatible with 8K60p(A) "UNCOMPRESSED" and 4K120p unlike some. I didn't look at the Yamaha RX-V6A/RX-A2A twins as they were not compatible with 8K60p(A) "UNCOMPRESSED" , just 8K60p(B) "COMPRESSED". They were the same price as the Denon AVR-S970H and AVR-X2800H models. That being Yamaha RX-V6A price about same as Denon AVR-S970H, and Yamaha RX-A2A about same as Denon AVR-X2800H. The Yamaha model compatible with 8K60p (A) "UNCOMPRESSED" is the more expensive RX-A4A but I seen no comparable pricing around what the Denon AVR-X2880H was selling at. Very similar to the Denon but more power with pre-amp outputs. I didn't need either for the hundreds more it was selling at. The Denon AVR-X2800H is the best bang for your buck 7.1 receiver right now IMO.
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Reviewed in the United States on September 21, 2024

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