HERCULES
Parker/Commercial Intertech 391-3881-111 Wiper Seal
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Parker/Commercial Intertech 391-3881-111 Wiper Seal is a cylinder rod wiper available from WQC Parts.
This listing uses Hercules part number CM-391-3881-111. Catalog description: RW-90URE-6-1/4x6.739x0.151.
Product Details
- Hercules part number: CM-391-3881-111
- Product type: Wiper or scraper seal
- Reference brand/application: Parker/Commercial Intertech
- Approximate weight: 0.036 lb
- Catalog data source: 2026 US Mobile Kit Catalog
Catalog Application Data
- Equipment type: Telehandlers
- Catalog page reference: 533
Understanding This Part
- Material code URE: urethane
- Durometer: 90 (hardness value in the catalog description)
A rod wiper sits in the cylinder head to help keep dirt and other foreign material out as the rod moves. Match the rod diameter, wiper groove and mounting profile to the original component.
Urethane is a sealing material valued for resistance to abrasion and cutting.
Durometer describes material hardness: a higher reading means a harder material on the same scale. It is not a pressure rating.
Fitment Verification
Before ordering, confirm the CM-391-3881-111 reference against your OEM reference number, machine model, cylinder location, bore and rod size, pump/motor series, and serial-number range. Manufacturer names and part numbers are used for identification and fitment reference only. If you are unsure, compare the old parts, measurements, and parts-book callout before installation.