
Resideo 40003916-012 Actuator Head
Professional-grade Resideo 40003916-012 Actuator Head provides a high-reliability solution for field replacement on V8043G zone valves. Designed specifically for 24V hydronic heating systems, this normally closed replacement head integrates a high-torque motor and a built-in SPST end switch to ensure precise auxiliary equipment sequencing. This unit is the direct replacement for the Honeywell V8043G 1000 series and contemporary 5000 series valve bodies, featuring 18-inch lead wires and a manual opener lever for easy system commissioning and air purging. Engineered for the demands of high-pressure residential and light commercial loops, it handles up to 125 psi with an ambient temperature rating of 125°F. The 40003916-012 ensures your hydronic zone control remains responsive, maintaining tight shut-off and consistent flow regulation without requiring a full valve tear-down. As a veteran-choice HVAC replacement part, it guarantees seamless 24V actuator compatibility with existing low-voltage wiring and thermostats.
Key Benefits- Direct Valve Compatibility: Purpose-built for V8043G series bodies, allowing for head-only replacement without draining the entire system on compatible models.
- Integrated End Switch: Features a built-in SPST switch to signal the boiler or circulator pump for streamlined zoning system operation.
- Manual Override Lever: Equipped with a manual open slot to facilitate rapid system filling and troubleshooting.
- High-Torque Performance: Delivers robust motor strength to ensure reliable opening and closing under standard hydronic pressures.
- Simplified Wiring: Includes 18-inch color-coded leads for fast integration into the zone valve control circuit.
Is this actuator compatible with V8043E models?
While optimized for the V8043G, this 24V head is often cross-compatible within the V8043 series; however, always verify the specific terminal configuration and end switch requirements for your 1000 or 5000 series body before installation.
Can I replace this head without draining my heating loop?
Yes, if your Honeywell or Resideo valve body features the "quick-release" or two-screw mounting style, you can swap the 40003916-012 actuator without breaking the plumbing seal.
What is the purpose of the 18-inch leads on this model?
The lead length provides extra slack for routing through junction boxes or conduit, ensuring a clean and secure electrical connection for 24V HVAC controls.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Resideo 40003916-012 Actuator Head
Professional-grade Resideo 40003916-012 Actuator Head provides a high-reliability solution for field replacement on V8043G zone valves. Designed specifically for 24V hydronic heating systems, this normally closed replacement head integrates a high-torque motor and a built-in SPST end switch to ensure precise auxiliary equipment sequencing. This unit is the direct replacement for the Honeywell V8043G 1000 series and contemporary 5000 series valve bodies, featuring 18-inch lead wires and a manual opener lever for easy system commissioning and air purging. Engineered for the demands of high-pressure residential and light commercial loops, it handles up to 125 psi with an ambient temperature rating of 125°F. The 40003916-012 ensures your hydronic zone control remains responsive, maintaining tight shut-off and consistent flow regulation without requiring a full valve tear-down. As a veteran-choice HVAC replacement part, it guarantees seamless 24V actuator compatibility with existing low-voltage wiring and thermostats.
Key Benefits- Direct Valve Compatibility: Purpose-built for V8043G series bodies, allowing for head-only replacement without draining the entire system on compatible models.
- Integrated End Switch: Features a built-in SPST switch to signal the boiler or circulator pump for streamlined zoning system operation.
- Manual Override Lever: Equipped with a manual open slot to facilitate rapid system filling and troubleshooting.
- High-Torque Performance: Delivers robust motor strength to ensure reliable opening and closing under standard hydronic pressures.
- Simplified Wiring: Includes 18-inch color-coded leads for fast integration into the zone valve control circuit.
Is this actuator compatible with V8043E models?
While optimized for the V8043G, this 24V head is often cross-compatible within the V8043 series; however, always verify the specific terminal configuration and end switch requirements for your 1000 or 5000 series body before installation.
Can I replace this head without draining my heating loop?
Yes, if your Honeywell or Resideo valve body features the "quick-release" or two-screw mounting style, you can swap the 40003916-012 actuator without breaking the plumbing seal.
What is the purpose of the 18-inch leads on this model?
The lead length provides extra slack for routing through junction boxes or conduit, ensuring a clean and secure electrical connection for 24V HVAC controls.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Professional-grade Resideo 40003916-012 Actuator Head provides a high-reliability solution for field replacement on V8043G zone valves. Designed specifically for 24V hydronic heating systems, this normally closed replacement head integrates a high-torque motor and a built-in SPST end switch to ensure precise auxiliary equipment sequencing. This unit is the direct replacement for the Honeywell V8043G 1000 series and contemporary 5000 series valve bodies, featuring 18-inch lead wires and a manual opener lever for easy system commissioning and air purging. Engineered for the demands of high-pressure residential and light commercial loops, it handles up to 125 psi with an ambient temperature rating of 125°F. The 40003916-012 ensures your hydronic zone control remains responsive, maintaining tight shut-off and consistent flow regulation without requiring a full valve tear-down. As a veteran-choice HVAC replacement part, it guarantees seamless 24V actuator compatibility with existing low-voltage wiring and thermostats.
Key Benefits- Direct Valve Compatibility: Purpose-built for V8043G series bodies, allowing for head-only replacement without draining the entire system on compatible models.
- Integrated End Switch: Features a built-in SPST switch to signal the boiler or circulator pump for streamlined zoning system operation.
- Manual Override Lever: Equipped with a manual open slot to facilitate rapid system filling and troubleshooting.
- High-Torque Performance: Delivers robust motor strength to ensure reliable opening and closing under standard hydronic pressures.
- Simplified Wiring: Includes 18-inch color-coded leads for fast integration into the zone valve control circuit.
Is this actuator compatible with V8043E models?
While optimized for the V8043G, this 24V head is often cross-compatible within the V8043 series; however, always verify the specific terminal configuration and end switch requirements for your 1000 or 5000 series body before installation.
Can I replace this head without draining my heating loop?
Yes, if your Honeywell or Resideo valve body features the "quick-release" or two-screw mounting style, you can swap the 40003916-012 actuator without breaking the plumbing seal.
What is the purpose of the 18-inch leads on this model?
The lead length provides extra slack for routing through junction boxes or conduit, ensuring a clean and secure electrical connection for 24V HVAC controls.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.












