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Hayden M6 Primary Chain Tensioner

(14 reviews)

Item: 345743-320213

$87.48

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Description Fitment Reviews Q&A

Hayden M6 Primary Chain Tensioner

  • Automatically adjust the tension of the primary chain
  • Provide constant and even tension, which improves gear shifting
  • Reduce shifting noise; makes for a smoother ride
  • Extend primary chain life
  • Made in the USA
Specification Details
Country of Origin USA
Engine Type Shovelhead / Evolution Big Twin

Vehicle Fitment

Fitment is guaranteed or your money back plus free return shipping.
Don’t waste time installing a product that doesn't fit. We worked hard ensuring that this product is an exact fit on the vehicles listed below.

Harley Davidson
  • FL 80 Electra Glide 1980
  • FLB Electra Glide 1966-1969
  • FLFB Electra Glide 1966-1969
  • FLH 80 Electra Glide Heritage 1981-1984
  • FLH Electra Glide 1970-1984
  • FLHB Electra Glide 1966-1969
  • FLHC Electra Glide Classic 1979-1982
  • FLHF Electra Glide 1970-1972, 1974
  • FLHF Electra Glide Sport 1975
  • FLHFB Electra Glide Super Sport 1966-1969
  • FLHS Electra Glide Sport 1977, 1980-1984, 1987-1993
  • FLHT Electra Glide 1982-1984
  • FLHTC Electra Glide Classic 1983-1993
  • FLHTCU Ultra Classic Electra Glide 1989-1993
  • FLHX Electra Glide Special 1984-1985
  • FLP Electra Glide 1970-1971
  • FLPF Electra Glide 1970-1972
  • FLST Heritage Softail 1986-1990
  • FLSTC Heritage Softail Classic 1987-1993
  • FLSTF Softail Fat Boy 1990-1993
  • FLSTN Heritage Softail Nostalgia 1993
  • FLT Tour Glide 1979-1984
  • FLTC Tour Glide Classic 1980-1991
  • FLTCU Ultra Classic Tour Glide 1989-1993
  • FLTD Tour Glide 1983
  • FX 1200 Super Glide 1971-1978
  • FXB Sturgis 1980-1982
  • FXDG Disc Glide 1983
  • FXDL Dyna Low Rider 1993
  • FXDWG Dyna Wide Glide 1993
  • FXE 1200 Super Glide 1973-1980
  • FXE Super Glide 1981-1984
  • FXEF Super Glide Fat Bob 1979-1981, 1985
  • FXLR Low Rider Custom 1987-1993
  • FXR Super Glide 1986-1993
  • FXR Super Glide II 1982-1983
  • FXRC Low Glide 1985
  • FXRC Low Rider Chrome 1986-1987
  • FXRD Grand Touring Edition 1986
  • FXRDG Disc Glide 1984
  • FXRS Low Glide 1982-1992
  • FXRS Super Glide II 1982-1983
  • FXRS-CONV Low Rider Convertible 1989-1993
  • FXRS-SP Low Rider Sport Edition 1986-1993
  • FXRT Sport Glide 1983-1992
  • FXS Super Glide Low Rider 1977-1979, 1981-1982
  • FXSB Low Rider 1983-1985
  • FXST Softail 1984-1990
  • FXSTC Softail Custom 1986-1993
  • FXSTS Springer Softail 1988-1993
  • FXWG Wide Glide 1980-1986

Customer Reviews

2000 softail

By Frank on  Verified Purchaser

Item fit perfectly on my softail, also already have one on my glide. Will always use them

Simple design

By David G. on  Verified Purchaser

Simple design, haven't tried my bike with it on yet, but it can't over tighten so I should get the response that you should expect.

Good performance - rough appearance

By Jon D. on  Verified Purchaser

I like the Hayden M6 tensioners and run them in several bikes. Very rough low quality machining on the parts but they are still quite functional. I would expect them to do a little nicer job though, even though the functionality of the parts does not require it.

Hayden m6 tensioner

By David P. on  Verified Purchaser

I ordered the Hayden Tensioner because of the quality over the stock one. Works great less chain noise.

USA made and affordable

By Nicholas P. on  Verified Purchaser

I bought a few tensioners that were LOUD and this one I'm telling you nice and quiet. Installed with zero effort. High quality. Don't waste your money on other tensioners like I did this one is great

Tensioner

By Manuel P. on  Verified Purchaser

Easy to install, and the quality is good.

Seems to work

By Christopher W. on  Verified Purchaser

Seems to work...checking would be an oily mess!

Excellent upgrade

By Randy S. on  Verified Purchaser

Excellent product.

Hayden M6 Tensioner

By Mike K. on  Verified Purchaser

Installation went good. Too soon to tell

Great product

By Brent R. on  Verified Purchaser

I run Hayden M6 Tensioners in all my Harleys. Smoother and quieter shifting. Easy to install. Lots of bang for the buck. Great price.

No more primary chain clatter!

By Jeff on  Verified Purchaser

Great product to replace the weak stock part that Harley makes!

Hayden M6

By P. on  Verified Purchaser

I replaced the stock Harley automatic chain tensioner with the Hayden unit on my 2012 Dyna Switchback. The stock unit only has one direction; tighter and tighter. The Hayden mounts on springs so it keeps constant tension on the primary chain. Install was easy and straight forward. I did have to file the metal portion of the unit a little because the nylon shoe was a little tight in spots on its mounting bracket. After filing, the shoe rides up and down smoothly in the mounting bracket. I also felt the price was a bit high for what you get too. But it is a big improvement over the faulty Harley stock unit. And I felt the Harley Screamin' Eagle unit wasn't a much better design. And its reviews said it was loud. The Hayden unit is quiet.

This thing is awesome

By Thomas W. on  Verified Purchaser

Easy to install and noticeable in shifting (much smoother) and getting neutral.

Hayden M6

By Michael M. on  Verified Purchaser

Easy installation. Seems to be working as advertised.

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Questions & Answers

Durability

By Sportsttttter

2003 sportster 1200 Good afternoon. My sportster is a stunt bike. Lots of wheelies and burnouts. Is this a good option or will the stress of all the hard riding be bad for it

These tensioners are rather well-made. Certainly better than stock. Yeah, I'd argue it's up for the kind of abuse you're doing!

By Tom

2019 heritage 114

By Anon.

Will it fit 2019 heritage with a 114

Yes, absolutely! Just select the 2019 Harley Davidson FLHCS Softail Heritage Classic 114 cam chain tensioner from our fit guide and you'll receive the correct components to fit your exact motorcycle.

By Tom

Why 2 springs ?

By Anon.

The smaller spring fits inside the bigger spring. Hayden chose the two-spring design to provide correct, more consistent cam chain tension under all operating conditions.

By Tom

I have a 1995 Harley 883 Hugger Sportster.Which one of the M6 adjusters will work for me ? How much is it ?

By Hal

If you were to choose the 1995 Harley Davidson XLH883HUG Sportster 883 Hugger chain tensioner from our fit guide, you'd receive the correct parts to fit your machine.

By Tom

I have a 88 xlh 1200 sportster. Will this chain tensioner work on my harley

By Anon.

Just be sure to pick the correct year/model when adding to your cart and you'll get the proper tensioner to work for that primary chain.

By Andy

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