The Hercules Poly Pak U Cup is an essential component for hydraulic systems requiring reliable sealing solutions. Manufactured by Hercules Sealing Products, this U Cup is known for its durability and performance under demanding conditions. Designed to efficiently handle high-pressure applications, it is ideal for use in heavy industrial machinery and equipment. Its precise construction ensures minimal leakage while offering excellent resistance to wear and tear.
Made from robust materials, the Hercules Poly Pak U Cup is engineered to provide optimal sealing performance over a wide range of temperatures. It is compatible with various hydraulic fluids, offering flexibility in application. This product is available under several alternate part numbers, making it a versatile choice for replacements and repairs in hydraulic systems.
SKU: U37-2.62
Supplier Part Number (MPN): U37-2.62
Alternate Part Numbers: C1DQ53, MI-03110388, MINO-00407X12353
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Specifications
Alternate Part Numbers
Alternate Part NumberC1DQ53, Alternate Part Number MI-03110388, Alternate Part Number MINO-00407X12353
Brand
Hercules Sealing Products
Brand
Hercules Sealing Products
Pack Size
1.00
UOM
EA
Supplier Part Number
U37-2.62
Product Weight
0.06 lbs
Product Questions & Answers (3)
Question by: Gary G on Dec 26, 2025, 7:37 PM
What kinda hydraulic fluid can I use with this U cup?
Answer by: Customer Support on Dec 28, 2025, 7:47 AM
This Hercules Poly Pak U Cup is compatible with a variety of hydraulic fluids, giving you flexibility in your hydraulic system setup.
Question by: Ralph R on Aug 9, 2025, 2:09 PM
Got a piece of equipment showing part number MI-03110388 for the u-cup seal, that the same as this one here?
Answer by: Customer Support on Aug 11, 2025, 6:02 AM
Yeah, MI-03110388 is one of the alternate part numbers for this exact seal. C1DQ53 and MINO-00407X12353 will also cross to it. If your machine calls out any of those numbers, this is the right replacement.
Question by: Frank M on Aug 22, 2025, 8:11 AM
got a leaky cylinder and the old seal is marked U37-2.62, is this the same Poly Pak U Cup or am i chasin the wrong part
Answer by: Customer Support on Aug 24, 2025, 6:44 AM
If your existing seal is marked U37-2.62, that matches the Hercules Poly Pak U Cup with supplier part number U37-2.62. It is also sold under alternate part numbers C1DQ53, MI-03110388, and MINO-00407X12353, so any of those numbers point to the same seal.
