I will confirm that the part fits, and works great for my SC351. The obstacle was the lead time to get the parts, as well as transparency from SweepScrub regarding the M/F delays. If this part is not stocked, then do not list it as a stocked item. I would not have ordered from this distributor if I had known this information because I needed this part ASAP. The only time I was updated about shipping from Sweepscrub was after I had to follow up asking about an update. They responded quickly, but only after the 3rd follow up I was given the real reason for the delay. While I understand that this is not SweepScrub's fault, I ordered this part because I was under the impression that it was going to be delivered within 5-10 business days. I don't have a problem with long lead times, but if I know this information I would have taken a different route. It took over 3 weeks to get the part. This delayed my work and required additional effort/time on my part to get this part in. If it wasn't for that, I would have given this 5 stars.