Anyone have the specs for the hex head bolts that mount the exhaust bracket to the transmission (HD PN# 3300)?

Started the bike this morning and noticed the exhause bouncing around a bit more than it should, and further noticed that the rubber grommet was not where it should be. I pull off the bag and then notice that I had broken the saddlebag support bracket where the rubber sits. As soon as I see that, I quickly looked to the transmission mount, and see that there are no bolts. So I put the bike back in my shop and take the car to work. At work, I see that the saddlebag support bracket is $101......I guess I will run home on lunch and grab the support to weld it. I call the dealer to see if they have the bolts or the size and they don't have them or know the specs. So I could use some help as I have been searching this site and the web for the size without any luck.

Thank you in advance.

 

Just was on phone with parts guys at my local dealer about some other parts, I mentioned this and he spent about 10 extra minutes trying to find any info he could. It superceeded another PN but no info there either. Was on line with a bunch of different places trying to find info, but could not. Good luck on this one. He did say it was the trap door on the 6 speed tranny, but that is all the extra anything I could find.
Kris

 

I have managed to find one dealer in the area that has exactly 1 of the required bolts. I plan on taking off work early and buying it, then heading to the bolt store to get a mate for it and hopefully a couple of extras.

I will be forced to attempt to weld the hanger bracket on the saddlebag support, as I am not willing to spend the money for a new one, and there don't seem to be any around my area that I could just drive to and pick up.

This breakage made me want to further inspect my other bike before I ride it, as it is much easier to tighten a bolt than to have to weld a bracket or have to buy more parts.

Once, I have the size in hand, I will post back on here so that the next victim should be able to get the answer. It is a shame that the dealers only have one of these bolts as they seem to be about the most reasonably priced Harley parts that I have found.

 

trans bolts are 30-35 ft. lbs.

 

Thanks for the heads-up. I used blue loctite on both bag support and transmission bracket......but now plan to check it regularly.

 

Just ask the dealer what size bolts they are and go get yourself some stainless steel bolts from a hardware store. Every time you remove one of the stock ones made of clay replace it with a stainless steel one.

 

Part# 3300 is a 5/16-18X1 1/2 socket head bolts. Some have changed them to hex head grade 8 bolts for easier access.

 

You should get your facts straight before advising someone on bolts. Stainless steel is not stronger than standard steel bolts. They are softer material than grade 8 bolts. Stainless is used in applications where corrosion is a problem. I wouldn't recommend using stainless steel bolts on a harley because stainless will gall and sieze the threads if not lubricated with anti sieze.

 

Ronp42 hit the nail on the head. I went to the one Harley dealer in my area that had the HD 3300 bolt (they were the only one around, and they only had 1 in stock). I went to the hardware store (Fastenal) and bought 3 more with washers for less than a dollar. These were grade 8 hex heads that were black oxide treated. Put them in, and it is a happy day.

Went over to my friends house and used his welder to repair the broken hanger on the saddlebag support and put everything back together. Also checked the other bike and everything hit torque.

 

ARP makes stainless steel bolts that have the tensile strength of grade 8 or better of steel bolts.I would say outside of all factors though, steel is still stronger.As far as installation goes on a Harley.I've had them on my bike for almost three years and I've used anti-seize and experienced no problems and the polished chrome finish still looks good.