Pressure Transducer - 500-PSI

The Holley Pressure Transducer – 500-PSI is an electric pressure sending unit designed for marine and boating applications where reliable, real-time hydraulic or fuel system monitoring is critical. Whether you're managing engine oil pressure, fuel delivery systems, or custom hydraulic circuits aboard your vessel, this transducer converts mechanical pressure into an electrical signal that integrates seamlessly with modern digital gauges and engine management systems. After years on the water, experienced boaters know that accurate pressure monitoring prevents catastrophic system failures before they happen.

This pressure transducer features a robust 1/8 inch NPT male thread connection, making installation straightforward on most marine engine blocks, fuel rails, and hydraulic manifolds. The 500-PSI rated capacity handles both gasoline and diesel engine applications, while the included harness simplifies wiring to your onboard electrical system and instrumentation. The compact form factor—weighing just 0.27 pounds with dimensions of 4.4 x 2.3 x 4.8 inches—fits tight engine compartments without sacrificing durability or accuracy in demanding saltwater and freshwater environments.

Boaters running custom engine builds, performance upgrades, or high-pressure fuel systems benefit most from the Holley Pressure Transducer's precision monitoring and reliable signal output. The NPT thread standard ensures compatibility with most marine engine platforms and aftermarket manifolds. Installation requires only basic hand tools and a understanding of your specific system's pressure points; the included harness eliminates custom wiring complications. For anyone upgrading boat instrumentation or troubleshooting pressure-related performance issues, this OEM-quality transducer delivers the real-time data needed to keep your engine running safely and efficiently.