Replacement Hardware for Resse Sidewinder
Updated 12/15/2025 | Published 11/13/2024
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Question:
Looking for replacement hardware for mounting a Reese sidewinder hitch. The 5/8 bolts, washers and nuts. Do you happen to sell a kit or have something that will work
asked by: Clayton P
Expert Reply:
Hello Clayton.
The mounting hardware that you need for the Reese Sidewinder like # RP77FR:
-(8) 5/8-11x2 Grade 8 Bolts
-(8) 5/8-11 Grade 8 Nuts
-(8) 5/8 HD Flat Washers
-(8) 5/8 Conical Lock Washers
The # GY86FR has most of the correct hardware, but I have to recommend that you use Conical Lock Washers (which are not included in the # GY86FR) for installing the Reese Sidewinder as it states in their instructions. I have included a copy of the instructions where you will see on page 9 what mounting hardware needs to be used for installation.
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on 5th Wheel Pin Box
Kate F.
12/15/2025
Hey Clayton, how did things go with the hardware for your Reese Sidewinder hitch? Did the Gen-Y bolt kit and the conical lock washers give you the setup you needed? Your update could make it easier for others working on the same hitch.