This is the unfortunate truth of buying a lift or jack from a place like Craftsman, Harbor Freight, etc. These companies arent' really lift manufacturers. They just buy a jack from overseas, slap their name on it, sell a few thousand, and move on. When you need a part for it, it's not available. You basically have two options. Option 1 - Throw it away and replace it with a unit from a company that supports their products with parts after the sale. Naturally, we recommend a Redline. Option 2 - Purchase a similar replacement part, such as this Redline pump, and try to retrofit it into your non-Redline jack. Some folks are successfull; some are not. It just depends how handy you are at making things work. If you choose to go the option 2 route, just be aware of this. We do not allow returns of our replacement parts in the event the customer is unable to retrofit it into their non-Redline jack. We had to implement this policy years ago because is was too common that we would receive returns that the customer had tried to hammer into place, discovered it wouldn't fit, and then return a product that couldn't be resold. My apologies if this answer isn't the one you wanted to hear, but it's the truth. Good luck to you!