Hello Dennis. We very well may have a replacement round spring bar for you. I was not able to find any references for this part number 131601 that you provided. Generally, the Reese part numbers are 5 digits and I would need this part number in order to accurately recommend a replacement spring bar. For example, the Replacement Round Spring Bar for Reese Weight Distribution System # RP58114 is specifically for the # RP26002 Reese Round Spring Bar for Weight Distribution Hitch. If this is... view full answer...