








⚡ Shift into high gear with BLACKHORSE-RACING torque power!
The BLACKHORSE-RACING 40 Series Torque Converter Kit is a high-performance CVT clutch system designed for 8-18HP go-kart engines. Featuring a 1" bore driver clutch with a 1/4" keyway, a 3/4" driven clutch, and a 7/8" wide cogged belt, it delivers smooth engagement between 1600-3300 RPM. This kit replaces multiple OEM Comet and MANCO parts, offering a reliable, plug-and-play upgrade that enhances torque transfer and durability for serious go-kart enthusiasts.







| ASIN | B07PXNPH8B |
| Best Sellers Rank | #167,260 in Automotive ( See Top 100 in Automotive ) #183 in Powersports Clutches #1,159 in Powersports Drive Train Parts |
| Brand | BLACKHORSE-RACING |
| Customer Reviews | 4.0 4.0 out of 5 stars (431) |
| Date First Available | March 21, 2019 |
| Item Weight | 11.9 pounds |
| Item model number | HM0913 |
| Manufacturer | blackhorseracing |
| Manufacturer Part Number | HM0913 |
| Package Dimensions | 14.69 x 9.09 x 5.31 inches |
N**N
Happy with product - install the driven the correct way.
Due to the direction of the spring on the non-engine size (driven), imo it should be installed as I have in this image. Otherwise, the belt may pull the driven open too soon making the spring seem weak. The balance seems to be fine on both clutch and driven, no wobbles noted. I updated the three springs in the clutch driver to be the comet red series so that the engagement is at 2000 rpms instead of 1600 rpms. Everything is working well.
S**C
40 converter
Good quality worked perfect.
J**N
!!!Easy fix for sticking drive clutch read!!!
First off to everyone complaining about the drive clutch sticking I know how you feel. Took me about 10 minutes on the internet to find out why. These drive clutches need to be taken apart and sprayed with a dry molly or graphite spray on the roller surfaces and rollers before use. I had the same problem as everyone else before doing this. I think even Comet has instructions to do this as part of servicing them. Not sure why Blackhorse doesn't do this upon assembly? The only complaint I have, is the clutches wobble slightly do to the clutch halves being distorted in the stamping process when they are made and the belt size provided does not work with the recommended spacing at 9.75 center on center. I had to purchase a Comet 203788A belt. Also, if you plan to run the driven clutch (large diameter) with the spring facing away from the engine you will need to install a yellow reverse wound spring. From someone who was new to this the picture for the listing shows it pictured for a reverse spring which it doesn't come with. If you plan to run it without spending money on a reverse spring the driven clutch needs to face the opposite from what the picture shows in this listing. Hope this review helps.
H**E
Good for price
Decent clutch for themoney
H**S
Clutch does not disengage sometimes
This came off of my bulldog side-by-side and I just got it installed yesterday and I drove it around a good bit yesterday with it and when it works, it works great, but I have ran into a problem now to where the clutch will not disengage
C**J
This Torque converter is complete garbage. Less than 5 minutes of use!!!!! Trashed a $60 belt...
The driven clutch lasted less that 5 minutes before it got stuck, freed it', got suck first lap, cleaned it, used dry graphite lubricant, got stuck again. This is just Chinese garbage, this piece of crap ruined a $60 comet belt and I can't even reture this clutch set!! Beware. Don't buy this.
J**E
Great product
Great set up! Only thing I works suggest is getting a true comet belt instead. This one wore out after a few hard rides.
J**H
Fixed a long time problem on our UTV
This part was an exact fit. Very high quality and made of durable materials. What a life saver this part was for our family and at an incredible price. Thank you so much
D**L
Very good price and works well
D**E
Not a quality product Very poorly manufactured Will not last
Trustpilot
1 week ago
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