DeatschWerks 1/8th NPT 5 Psi Hobbs Switch with Pigtail - Universal Boost Activated Switch - 0.5A - 4-Hobbs-5

The DeatschWerks 4-Hobbs-5 is a fixed 5 PSI Hobbs switch designed for pressure-triggered activation in boosted and high-performance fuel system setups. Featuring a 1/8th NPT thread and included pigtail, this switch is ideal for activating secondary fuel pumps, relays, or other accessories once boost reaches the desired threshold. It offers a simple, reliable way to add boost-based control without complex ECU programming, while helping reduce unnecessary heat and electrical load during normal driving. DeatschWerks lists this SKU as a universal-fit 5 PSI Hobbs switch with a 0.5A rating.

• Exact 4-Hobbs-5 SKU - Genuine DeatschWerks 4-Hobbs-5 fixed-pressure Hobbs switch for boost-triggered activation.
• 5 PSI activation point - Designed to switch at 5 PSI, making it ideal for staged fuel pump or accessory activation in boosted applications.
• 1/8th NPT thread - Universal 1/8th NPT fitting supports use in a wide range of custom performance setups.
• Includes pigtail - Comes with pigtail for easier wiring and cleaner installation.
• Simple boost-based control - Commonly used to trigger a second-stage pump only when boost is present, helping improve efficiency and reduce electrical load during low-demand driving.