Enerpac G4089L Hydraulic Pressure Gauge 15000 Psi

Product Description

The ENERPAC G4089L is a glycerine-filled hydraulic pressure gauge rated to 15,000 psi, built for high-pressure hydraulic systems used in industrial and field service applications. The glycerine fill dampens needle vibration and protects internal components against pressure spikes and pulsation, extending gauge service life in demanding environments. The 4-inch face diameter provides clear, readable graduation at a distance. The 1/4 NPTF connection is the standard fitting used across a wide range of hydraulic pumps, cylinders, and manifold blocks. Hydraulic technicians and industrial maintenance professionals install this gauge as an OEM-style replacement or as a system upgrade where an ungassed or dry gauge has failed prematurely.

This gauge is suited for high-pressure hydraulic circuits in industrial maintenance, heavy equipment service, and hydraulic tool applications. The 15,000 psi rating covers the full operating range of most ENERPAC hydraulic pump and cylinder systems. The glycerine-filled design is especially appropriate in environments with vibration, pressure fluctuation, or continuous duty cycles where dry gauges degrade quickly. The 4-inch face makes it practical for panel mounting or direct pump-port installation where readability matters.

Key Features

• 15,000 psi maximum pressure rating for high-pressure hydraulic systems
• Glycerine fill dampens needle vibration and absorbs pressure pulsation
• 4-inch face diameter for clear, at-a-glance readability
• 1/4 NPTF gauge port connection matches standard hydraulic pump and manifold fittings
• Compact overall depth of 1.15 inches suits flush or panel-mount installations

Compatibility

Designed as an OEM-style replacement gauge for hydraulic pump and cylinder systems using a 1/4 NPTF gauge port and requiring a 15,000 psi-rated instrument.

Installation Notes

Installation is performed by qualified hydraulic technicians. Always relieve all system pressure and depressurize the hydraulic circuit completely before removing or installing any gauge. Use appropriate thread sealant rated for hydraulic service on the NPTF threads; avoid over-tightening, which can crack the gauge body. Verify the system operating pressure does not exceed the 15,000 psi gauge rating before returning the circuit to service.