So after I installed my Hayden M6 chain tensioner, I finally had time to compare the original 39929-06 HD chain tensioner that was in my 06 Street Bob with the 39929-06B HD chain tensioner I had the dealer install back in June when they did my SE Compensator and a Baker IPB bearing. It appears that the chain was running on the very front edge of the new 06B version since no 1/4" spacers were installed. I plan to head over to the dealer and show them the wear pattern and schedule them to inspect the chain and sprockets for wear. Does anyone know the part number for the spacers I've seen in other threads? I cannot seem to locate the part or part number in any IPL I look at. Thanks.

 

I decided to look at the parts a bit more and noticed the chain tensioner part box and the included instruction sheets shows that it's kit part number 40063-05B which is for older bikes and includes a bracket that goes behind the tensioner. So that explains the 1/4" mounting base difference, but the tensioner is stamped 39929-06B and not 40064-05B. Can anyone tell me if there are 2 different 39929-06B chain tensioners?

For 85 - 06 models:
40063-05 first released 2005-05-18
40063-05A first released 2006-11-13
40063-05B first released 2010-01-25

For 07+ (06 Dyna)
39929-06
39929-06A
39929-06B

 

I just put the M6 in a week ago and found when I removed the factory tensioner it only had 1 spacer. It was in the rear and the wear pattern on the shoe was from the inside on the rear and the outside on the front. It had worked it's way clear forward and the chain was tighter than he!! . After the M6 install all my vibration I was having was gone. My bike before this 07 Lowrider was an 02 Electra Glide and it didn't run this smoooooth. Love it. I would like to know if it was like that from the factory because the bike had 3 previous owners and only has 11k on it. Wondering if the bad vibes it had caused all of them to trade it. It is fixed now and not going anywhere as far as I am concerned
Clap

 

I stopped by the dealer and showed them the original 39929-06 and the 39929-06B tensioners and the difference in the mounting width and wear patterns. They seemed unconcerned and were sure that the 40063-05B kit was the correct part they installed. What does the spacer look like? Is it just a 1/4" thick washer / spacer?

 

pretty much just a thick washer.

 

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Did anyone ever come up with the Part number for these spacers used in the 06A version?
I sure need them

 

I also need those spacers. Anyone???

 

Where do I get those spacers?