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Honeywell Resideo 40003916-026 / V8043E1012 24V 4-Wire Hydronic Zone Valve Replacement Powerhead (With End Switch) Engineering Diagram
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SPECFOUNDRY SKU: SF-HVC-102 · BRAND REF: Honeywell Home / Resideo

Honeywell Resideo 40003916-026 / V8043E1012 24V 4-Wire Hydronic Zone Valve Replacement Powerhead (With End Switch)

Stamped Casting / OEM Numbers: 40003916-026 V8043E1012 802360 40003916-021 V8043F1036

Compatible Units: Honeywell V8043E & V8043F 2-Way 4-Wire Hydronic Zone Valves (2-Screw Dimple Ball-Seal Body, Post-1988)

Critical Dimensions & Spec: 24VAC, 50/60Hz; 18" 4-wire leads (2 yellow motor + 2 red isolated end-switch); includes 802360 motor & manual opener lever

$99.99
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Pre-Order Dimensional Verification Checklist

OEM Cross-Reference & Stamped Casting Number Table

Use this cross-reference table to confirm that the number stamped or printed on your original hardware or circuit board corresponds to SpecFoundry SKU SF-HVC-102:

Stamped / OEM Part Number Manufacturer / System Brand Compatible Models & Years SpecFoundry Replacement SKU
40003916-026Honeywell Home / ResideoHoneywell V8043E & V8043F 2-Way 4-Wire Hydronic Zone Valves (2-Screw Dimple Ball-Seal Body, Post-1988)Direct Match (SF-HVC-102)
V8043E1012Honeywell Home / ResideoHoneywell V8043E & V8043F 2-Way 4-Wire Hydronic Zone Valves (2-Screw Dimple Ball-Seal Body, Post-1988)Direct Match (SF-HVC-102)
802360Honeywell Home / ResideoHoneywell V8043E & V8043F 2-Way 4-Wire Hydronic Zone Valves (2-Screw Dimple Ball-Seal Body, Post-1988)Direct Match (SF-HVC-102)
40003916-021Honeywell Home / ResideoHoneywell V8043E & V8043F 2-Way 4-Wire Hydronic Zone Valves (2-Screw Dimple Ball-Seal Body, Post-1988)Direct Match (SF-HVC-102)
V8043F1036Honeywell Home / ResideoHoneywell V8043E & V8043F 2-Way 4-Wire Hydronic Zone Valves (2-Screw Dimple Ball-Seal Body, Post-1988)Direct Match (SF-HVC-102)

Common Failure Symptoms Solved by SF-HVC-102

Technicians and property owners typically replace 40003916-026 when experiencing one or more of the following failure modes:

  • Honeywell zone valve lever slides freely without resistance when zone is off
  • Synchronous 802360 motor hums or chatters loudly without closing red end-switch wires
  • Boiler fires for other zones but one V8043E valve refuses to open

Step-by-Step Dimensional Verification & Installation Notes

Confirm your brass valve body has only 2 mounting screws (4-screw bodies built before 1988 require conversion plate 40003918-006). Swap powerhead in 5 minutes without draining hydronic loop.

Related Technical Guide: Taco 571-2 vs. Honeywell V8043E Zone Valve Powerheads, B&G Couplers & Boiler Cross-Reference →

Frequently Asked Technical Questions (40003916-026)

Where is the casting or OEM part number (40003916-026 / V8043E1012 / 802360) stamped on this part?

On Honeywell Home / Resideo assemblies, look for the stamped or die-cast numbers (40003916-026, V8043E1012, 802360, 40003916-021, V8043F1036) on the underside of the metal housing, along the link arm, on the stainless hinge track, or printed on the circuit board/valve label. Note that casting numbers identify the housing casting, so always confirm critical dimensions (24VAC, 50/60Hz; 18" 4-wire leads (2 yellow motor + 2 red isolated end-switch); includes 802360 motor & manual opener lever) as well.

Does SpecFoundry SKU SF-HVC-102 directly replace OEM part 40003916-026 (40003916-026, V8043E1012, 802360, 40003916-021, V8043F1036)?

Yes. SF-HVC-102 is verified to match the mounting footprint, electrical/mechanical ratings, and dimensional envelope of Honeywell Home / Resideo 40003916-026, V8043E1012, 802360, 40003916-021, V8043F1036 used on Honeywell V8043E & V8043F 2-Way 4-Wire Hydronic Zone Valves (2-Screw Dimple Ball-Seal Body, Post-1988).

What measurements should I verify before ordering SF-HVC-102?

Before ordering, verify: (1) Stamped or OEM code matches one of 40003916-026, V8043E1012, 802360, 40003916-021, V8043F1036; (2) Dimensional spec matches: 24VAC, 50/60Hz; 18" 4-wire leads (2 yellow motor + 2 red isolated end-switch); includes 802360 motor & manual opener lever; and (3) Application matches: Honeywell V8043E & V8043F 2-Way 4-Wire Hydronic Zone Valves (2-Screw Dimple Ball-Seal Body, Post-1988).

How fast does SF-HVC-102 ship and what payment methods are accepted?

SF-HVC-102 ships within 1–2 business days from our US warehouse network. Flat-rate US Ground shipping is $8.95, or FREE on orders of $150+. You can check out online immediately via PayPal, Venmo, Credit/Debit Card, or request an Instant Card Payment Link / Net-30 Commercial PO Invoice.

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