Does anyone have access to a manual for an IH McCormick 33 Loader? If so, can you please lookup the part number for the piston cups (seals on the inside of the hydraulic cylinder)? There are two piston cups in each cylinder - 4 in all. I assume they are all the same size. I haven't called my local Case IH dealer, yet. Not sure they would carry parts for a loader this old. If they do have them, I will be sure to follow up and provide the part number for anyone else who might be looking for this. Thanks for anyone who can provide advice!
- Thread starter KyleH
- Start date
Steve@Advance
Well-known Member
If you can spare the down time, take one apart and measure the seal. You can probably find them at a seal
supply much cheaper than the dealer.
supply much cheaper than the dealer.
Thanks Steve! I appreciate the advice. After looking into this, I think ordering the piston cups from a seal manufacturer is the right way to go!
One of the Case IH dealers sent me a page from the IH Loaders Parts manual (which I shared here). I am fairly certain I need Item # 16 (653 051 R1) PACKING, piston cup - 2 for each cylinder. The cost is $41.13! That's insane! Once I measure the piston cups and do the research, I will post the name of the seal dealer and part number to save others the hassle of doing this research themselves.
One of the Case IH dealers sent me a page from the IH Loaders Parts manual (which I shared here). I am fairly certain I need Item # 16 (653 051 R1) PACKING, piston cup - 2 for each cylinder. The cost is $41.13! That's insane! Once I measure the piston cups and do the research, I will post the name of the seal dealer and part number to save others the hassle of doing this research themselves.
Finally got my McCormick 33 Loader working! I ended up ordering 4 piston cups (Part # 6237-100) from Hercules Sealing Products. Here is the link to the part:
https://www.herculesus.com/product.php?productid=4084
The Inside diameter of the piston ring was too tight, but I was able to trim the excess rubber with a sharp knife.
https://www.herculesus.com/product.php?productid=4084
The Inside diameter of the piston ring was too tight, but I was able to trim the excess rubber with a sharp knife.
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