This is an OEM Honeywell power replacement head (part number 40003916 026) designed for the V8043E1012 zone valve. This is a critical HVAC component that powers your zoning system, allowing precise temperature control in different areas of your home or building. The 24V powered head delivers reliable performance and is engineered to meet Honeywell's strict quality standards for heating and cooling systems. This item is brand new and sealed in original manufacturer packaging. You are receiving exactly one (1) Honeywell 40003916 026 power head as pictured. All components are factory-fresh and ready for professional installation. No refurbished or used parts — this is a genuine OEM replacement. We offer fast shipping to get your HVAC system back up and running quickly. We stand behind every item sold with a hassle-free return policy and dedicated customer service. Buy with confidence from a trusted HVAC parts seller.