I've used Dayco's and factory stock and they look the same to me. I really don't think one is any better than another. When the clutch is not properly aligned (shimmed) it will tear either one up, and I've done that to both belts in 1 day already. Once tore up 5 belts in a month. The last one has been on for two season now and is fine. I also think that aftermarket clutch springs will help put more pressure on the sheaves to grip the belt better and you have less problems, particularly when trying to tow with a hi-range only pvt setup. The factory stock springs are quite weak compared to the other 15 Polaris stock drive clutch springs available and the 15-20 aftermarket springs out there from various sources. I think it really pays to set your clutch up according to how you use your machine. If properly tuned to your riding requirements, belts will wear for a long time and give good service without slippage. The clutches as they come from the factory today are really set up poorly in my opinion. Just some simple spring changes can make a lot of difference.

 

Alignment should always be check as the most likely cause of premeture belt wear.

Jack/Chris

I found Goodyear makes belts too that feel 10X stronger than the Daycos. It's not a top cog belt, but is made of a superior rubber compound with a "Flexon" cord inside it. Apparently Goodyear's answer to kevlar. I got mine through Parts Unlimited, forget their PN, but the Goodyear PN is 71113, and it's called the Power Streak. Retail is like $48-. It is about 1/8th to 1/16th" shorter than than Dayco too, but I had no trouble getting mine on. I have yet to run it for the true test, but it does look and feel superior to anything I've seen!

 

Maybe i was wrong but the belt i got from HPD had cogs on the top and bottom unlike the ones i got from Polaris.

Chris Picciotto
99 Scrambler 500

 

I have burned 2 stock belts and one Dayco belt. All of these came apart after just a small puff of smoke came out of the PVT cover (All while doing stupid stuff). I bought a belt for the Ranger a polaris top cog belt and have seen more smoke come out of the cover with this belt on thad what trashed the other belts due to pulling someone out yet it still looks like new. I would strongly reccomend this belt. It is what HPD used to sell as a top cog belt but several people say it is a Dayco now, but I can not confirm this.

 

Gogs on the top of the belts are needed for Yamaha newer engine braking system.Polaris can use normal snowmobile belts .

 

If your ride has ebs it does not use a normal snowmobile belt on a sp 500 it is an 069 belt.It has micro groves on the bottom which run on the inside of your primary clutch which is part of your ebs system. A stantard style snowmobile belt can be used but it is not the proper one for the ebs system. It will get you home so it is better then nothing but there is a difference between the two models.