Complete upper and lower engine mounting hardware kit for OHV engines used from 1936 to 1957 on rigid frame springer and Hydra-Glide big twins- this is what we call our “generic” 36-57 rigid kit.  As the bolts are CP-1038, they would be "correct" from roughly 1948 to 1957, but will certainly work for any '36 to '57 big twin.  This kit includes the special motor mount nut, lock, and lock washer used under the generator land area from 1936 to 1957. The top motor mount bolt is machined exactly as Harley machined them on their own screw equipment leaving a small tit at the center of the bolt head. Flex-lock nut on top mount bolt is commonly associated with 1948 to 1951 models.

We also now stock motor mount kits with correct top motor mount bolt and markings for the following 1936-1969 OHV Big Twins: 

There seems to be some misinformation on CP bolts and "reproductions".  Chandler Products has always been willing to produce these bolts with large minimum quantity orders. There's either early production or current production. They changed head dies as they wore out and had multiple dies. Top mount bolt and all nuts are USA made using the same process Harley used when they operated their own screw and nut equipment with the flat lands on them.  Spacers and washers are produced just like the ones H-D did back in the day.  Parkerizing is same finish as how these came from the factory in the 1950's.  I've also got other hardware kits listed in my store under "pre 1980's hardware" including a CP-1038 gas tank and oil tank mounting kit which would go great with this.

Used on the following:

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