It is important to determine the correct style and material for your application. Hi-Tech Seals standard wiper material is urethane; however, KasPex™ PEEK, nitrile (NBR), hydrogenated nitrile (HNBR), fluorocarbon/Viton™ (FKM), and Hytrel® materials are available upon request. Things that should be considered when selecting the material of your wiper include:

Wiper sealsize Chart

All other trademarks and registered trademarks are the property of their respective owners. Chevrolet, Chevy, Avalanche, PRO-TEC, PASSlock, Midgate, the Chevrolet bowtie, Avalanche logo, and their images are registered trademarks of the General Motors Corporation and are used with kind permission as approved by Chevrolet Public Relations, Chevrolet Brand Management and the Chevrolet Legal Department (thanks Chevrolet!). OnStar and it's logo are the property of OnStar. XM, XM Radio, and the XM logo are property of Sirius XM Radio Inc.

Wipers are primarily designed to stop contaminants from entering a cylinder on the rod, however, they can also act as a secondary rod seal. If contaminants were allowed to enter the cylinder it could lead to damage of your rod and/or the damage of other sealing components. A properly selected wiper could help reduce the need for unscheduled maintenance and even increase the time between maintenance cycles.