zekepiks 8 #1 Posted August 1, 2014 I bought a c161 twin 8 speed to mount my( new to me) ark 500 fel . i found it clumsy to use on my c160 auto, anyway, I am having trouble finding a new drive belt. It is a 91b80 17299 on the tractor Id tag,The dealership in my area found 2 differant drive belts, The one he had access to was a belt that fit a drive pully that had a thru bolt to hold the pully to the trans, the one he didn't have access to was where the drive pully mounted to the trans with a keyway and set screw.. He wound not turn the screen so I could see the wh part number so I could see if I could cross ref it to a gates or a napa belt. I did find a drive belt size chart in REDSQUARE but it did not show anything for a 91b80. Thank you in advance for Any help Skip Share this post Link to post Share on other sites
gwest_ca-(File Mod) 10,569 #2 Posted August 1, 2014 Will guess your full model number should be 91-16B801 or 91-16B802 which are both 1979 models. 9 = 1979 The 1st 1 = garden tractor as opposed to lawn tractor 16 = 16hp B = B&S engine 8 = 8-speed transmission 01 and 02 are numbers and the parts list identifier Here is the belt chart with dimension on the last pages Garry Share this post Link to post Share on other sites
