These high performance ISO Diagnostic couplings are specifically designed to measure the internal pressure of hydraulic circuits on Caterpillar equipment and machinery. They are commonly found on dozers, excavators, wheel loaders, pavers, graders, material handlers, telehandlers, mining shovels and more.

High pressure diagnostic couplings are purposely designed for the heaviest hydraulic demands.

Interchanges with most high pressure flat face couplings from major OEM brands such as Inteva 136 series, Faster DF series, Parker PD series. and more.

MAXIMUM PRESSURE: 420 BAR / 6,000 PSI

PRICING IS FOR A SINGLE COUPLING – THESE ARE NOT SOLD AS A SET

If you’re unsure about the exact size you need, feel free to contact us—we’re here to help you make the right selection.

WARNING – IMPROPER USE OR IMPROPER SELECTION OF THE PRODUCTS/EQUIPMENT OR SYSTEMS DESCRIBED CAN CAUSE PERSONAL INJURY, DEATH AND/OR PROPERTY DAMAGE