SKU: 23720907570

Cometic Harley-Davidson 99-17inEst 3.875in Big Bore T/C .030in H/G Top End Rebuild

Sale price$131.40 Regular price$146.00
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Description

Cometic Harley-Davidson 99-17inEst 3.875in Big Bore T/C .030in H/G Top End RebuildToday's lightweight engines are producing more horsepower, higher cylinder pressures, clamp loads and extreme temperatures. Our commitment is to provide innovative, quality gaskets while maximizing your engine's power and performance. Cometic's gaskets are proudly made in the USA with materials manufactured on American soil. We are constantly updating and adding models to our ever growing library of gaskets for Powersports, Street Bikes, Snowmobiles,

Today's lightweight engines are producing more horsepower, higher cylinder pressures, clamp loads and extreme temperatures. Our commitment is to provide innovative, quality gaskets while maximizing your engine's power and performance. Cometic's gaskets are proudly made in the USA with materials manufactured on American soil. We are constantly updating and adding models to our ever growing library of gaskets for Powersports, Street Bikes, Snowmobiles, Harley-Davidson and V-Twin applications.

  • All of Cometic's gaskets and seals have been tested on both the street and the track as well as vigorous Dyno shakedowns
  • No Additional Sealer Needed

This Part Fits:

Year Make Model Submodel
2013-2014 Harley-Davidson FLD Switchback Base
2003-2014 Harley-Davidson FLHR Road King Base
2007-2011,2013 Harley-Davidson FLHRC Road King Classic Base
2003-2006 Harley-Davidson FLHRI Road King Base
2004-2007 Harley-Davidson FLHRS Road King Custom Base
2004-2006 Harley-Davidson FLHRSI Road King Custom Base
2003-2006,2008-2009 Harley-Davidson FLHT Electra Glide Standard Base
2003-2005,2008-2011,2013 Harley-Davidson FLHTC Electra Glide Classic Base
2003-2006 Harley-Davidson FLHTCI Electra Glide Classic Base
2007-2011,2013-2014 Harley-Davidson FLHTCU Electra Glide Ultra Classic Base
2003-2006 Harley-Davidson FLHTCUI Electra Glide Ultra Classic Base
2014 Harley-Davidson FLHTCUTG Tri Glide Ultra Base
2013 Harley-Davidson FLHTCUTG Tri Glide Ultra Classic Base
2003-2006 Harley-Davidson FLHTI Electra Glide Standard Base
2013-2014 Harley-Davidson FLHTK Electra Glide Ultra Limited Base
2006-2011,2013-2014 Harley-Davidson FLHX Street Glide Base
2006 Harley-Davidson FLHXI Street Glide Base
2014 Harley-Davidson FLHXS Street Glide Special Base
2013-2014 Harley-Davidson FLS Softail Slim Base
2006 Harley-Davidson FLST Heritage Softail Base
2003-2009,2011 Harley-Davidson FLSTC Heritage Softail Classic Base
2003-2008 Harley-Davidson FLSTF Fat Boy Base
2003-2006 Harley-Davidson FLSTFI Fat Boy Base
2006 Harley-Davidson FLSTI Heritage Softail Base
2005-2007,2012-2013 Harley-Davidson FLSTN Softail Deluxe Base
2005-2006 Harley-Davidson FLSTNI Softail Deluxe Base
2003 Harley-Davidson FLSTS Heritage Springer Base
2010-2011 Harley-Davidson FLSTSB Cross Bones Base
2005-2007 Harley-Davidson FLSTSC Softail Springer Classic Base
2005-2006 Harley-Davidson FLSTSCI Softail Springer Classic Base
2003 Harley-Davidson FLSTSI Heritage Springer Base
2007 Harley-Davidson FLTR Road Glide Base
2003-2006 Harley-Davidson FLTRI Road Glide Base
2012-2013 Harley-Davidson FLTRU Road Glide Ultra Base
2010-2013 Harley-Davidson FLTRX Road Glide Custom Base
2009 Harley-Davidson FXCW Rocker Base
2008-2011 Harley-Davidson FXCWC Rocker C Base
2003-2005,2007-2010 Harley-Davidson FXD Dyna Super Glide Base
2007-2011,2014 Harley-Davidson FXDB Street Bob Base
2006 Harley-Davidson FXDBI Street Bob Base
2005,2007-2011,2014 Harley-Davidson FXDC Super Glide Custom Base
2005-2006 Harley-Davidson FXDCI Super Glide Custom Base
2008-2014 Harley-Davidson FXDF Fat Bob Base
2004-2006 Harley-Davidson FXDI Dyna Super Glide Base
2006 Harley-Davidson FXDI35 Dyna 35th Anniversary Super Glide Base
2003-2005,2007-2009 Harley-Davidson FXDL Dyna Low Rider Base
2004-2006 Harley-Davidson FXDLI Dyna Low Rider Base
2003-2005,2007-2008,2010-2014 Harley-Davidson FXDWG Dyna Wide Glide Base
2004-2006 Harley-Davidson FXDWGI Dyna Wide Glide Base
2003-2005 Harley-Davidson FXDX Dyna Super Glide Sport Base
2004-2005 Harley-Davidson FXDXI Dyna Super Glide Sport Base
2003 Harley-Davidson FXDXT Dyna Super Glide T-Sport Base
2011-2013 Harley-Davidson FXS Blackline Base
2013-2014 Harley-Davidson FXSB Breakout Base
2013-2014 Harley-Davidson FXSBSE CVO Breakout Base
2003-2007 Harley-Davidson FXST Softail Standard Base
2003-2009 Harley-Davidson FXSTB Night Train Base
2003-2006 Harley-Davidson FXSTBI Night Train Base
2007-2010 Harley-Davidson FXSTC Softail Custom Base
2003-2007 Harley-Davidson FXSTD Softail Deuce Base
2003-2006 Harley-Davidson FXSTDI Softail Deuce Base
2003-2006 Harley-Davidson FXSTI Softail Standard Base
2003-2006 Harley-Davidson FXSTS Springer Softail Base
2003-2006 Harley-Davidson FXSTSI Springer Softail Base
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: 23720907570

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4.8 ★★★★★
Based on 950 reviews
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Product Reviews
R
Rico
New York, US
★★★★★ 5
Flavor/Scent May Not Be Very Strong
My pup is picky about toys and the only ones that hold his interest are mostly the scented rubber toys from Playology, They’re great, but expensive, and I was really hoping this would be a cheaper alternative. It really looked like the kind of toy he likes. It’s heavy rubber with a softer texture than the hard toys out there, and it had a lot of surface grooves that lets him grip it with his teeth easily. I gave it to him and he was excited for all of 30 seconds, then he discarded it and hasn’t looked at it since. I suspect the flavor/scent may not be as strong but that’s just a guess. I don’t know if it’s a flaw in the toy or simply a picky pup, so I hesitate to rate this down for that. It does look like a really nice toy and if your dog isn’t a jerk like mine it may be great, and it’s definitely a good price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 4, 2026
A
awesomest girl
Port Orchard, US
★★★★★ 4
Heavy duty rubber bone
This bone is really heavy duty. It's got a groove down the middle of you you can put your pups favorite lickable treat. My 36 lb aussie enjoyed chewing on this and was nibbling the ends. This bone has held up to her chewing it with only a couple little pieces coming off.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 13, 2026
S
S. Alter
Omaha, US
★★★★★ 5
Big hit with my super chewer.
Here’s an expanded, Amazon-friendly version that keeps a natural, human tone while adding helpful detail: This is a truly heavy-duty chew bone and a great option for aggressive chewers. The first thing I noticed when I took it out of the package was the weight. It’s solid and well made, so it definitely feels like it’s built to last. Because of that, I would recommend being mindful when handing it to your dog and avoiding tossing or dropping it on hard floors or toes. My dog, Yukon, was instantly thrilled with it. From the moment I gave it to him, he’s been carrying it around proudly and settling in to chew on it for long stretches of time. It’s kept his attention much better than lighter chews, and it’s holding up well to his strong jaws so far. I also love that it provides great enrichment and gives him a safe, satisfying outlet for his chewing instincts. Overall, this chew bone has been a big hit in our house. If you have a powerful chewer and are looking for something durable that will actually keep them engaged, this is a solid choice. I’m very glad I picked it up for Yukon and would recommend it to other dog owners with heavy chewers.
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Reviewed in the United States on January 30, 2026
T
TentAndLantern
Charlottesville, US
★★★★★ 5
Immediate Hit With My Power Chewer!
Immediate hit. Like, didn’t even make it fully out of the package before my dog was sniffling around the package, all excited. I have a serious chewer, the kind that treats most toys like a personal challenge. This one has actually held up. It’s firm and tough, but not rock hard like those nylon bones that make me nervous about teeth. There’s a little bit of give to it, which I like. The beef flavor must be legit because he keeps going back to it. This isn’t one of those toys that gets ignored after five minutes. He’s been happily gnawing on it and hasn’t managed to destroy it yet, which honestly says a lot in this house. I also like the shape and texture. It’s easy for him to hold, and the ridges seem to keep him engaged longer. Bonus points if it’s helping his teeth even a little, because chewing is already his favorite hobby. No toy is truly indestructible, but this has definitely earned its place in the “worth buying again” category. If you’ve got a medium to large dog who lives to chew, this one’s a solid win.
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Reviewed in the United States on February 1, 2026
A
Average Joe
Draper, US
★★★★★ 5
Great Chew Toy for Destructive Dogs
I got this toy for our lab/pit mix, who tends to destroy most chew toys. He seems to really enjoy it so far, preferring it over his other toys. I'm not sure if it’s just the novelty of a new toy, or whether he actually likes the "real beef flavor," but either way, he's definitely into it. I’ve noticed some small teeth marks in the rubber, but nothing that concerns me too much at this point. My kids thought it looked pretty gross when I first pulled it out, which always makes me laugh! Overall, I'm very satisfied with the toy’s performance so far. It seems durable and I hope it lasts a long time--based on how things are going, I think it will. It's definitely worth the price.
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Reviewed in the United States on February 7, 2026

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