Item dimensions L x W x H 5.04 x 4.29 x 2.68 inches

Exterior Finish Silver Metal

Inlet Connection Size 4.29 Inches

Inlet Connection Type FNPT

Outlet Connection Type Normally Closed 2-Way 4-Wire

Maximum Operating Pressure 1 Millibars

Number of Ports 1

Outlet Connection Size 4.29 Inches

【Replacement】:This 40003916-026 Power Replacement Head replaces part No. 40003916-026/U(40004850-001 Lid Model). To confirm newer style valve: Just remove the cover and look inside your current power head. You can watch videos on youtube to install it, which can take you up to 30 minutes. （This item contains installation screws and detailed installation instructions.）

【Part number & compatibility】: 40004850-001 zone valve motor Replacement Head Compatible with V8043E series zone valve V8043E1012 V8043E1061 V8043E1079 V8043E1020 etc. The Zone Valves Actuator Motor Replaces part number as fellows: 40003916-026, 40003916-021, U 40004850-001

【Upgraded Feature】: V8043E Zone Valve Power Heads are Produced By Professional Zone Valve Manufacturers, is an accessories replacement to circulate water and control the flow of hot water, The zone valve motor With a 24V design and a maximum ambient temperature rating of 125 degrees Fahrenheit for extending the life of heating system.

【Installation simple】 : Add a Replacement Head to Your V8043E System with the 40003916-026 Replacement Head. Replacement is very simple, no need to replace the entire area valve body unit, just remove the old head and install the new one(When first powered on, the mounting screws had to be loosened so the unit would self-align)