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Taco 003-BC4 Replacement

The Taco 003-BC4 is a 1/40 HP, 3250 RPM bronze domestic hot water recirculator (1/2″ sweat, 115V). Below: the specs we verify before quoting, and what to check on your nameplate.

Verified specifications

Horsepower1/40 HP
Speed3250 RPM
Voltage115V, single-phase, 60 Hz
Amps0.43/0.45A
MotorPSC, impedance-protected
BodyBronze
Connections1/2" sweat, panel-mount
SealsEPDM o-rings
Flow0–7 GPM
Head0–4.5 ft
Max pressure125 psi
Temperature range40–220°F
DutyDomestic hot water recirculation — the go-to DHW recirc pump

Verified variants: 003-B4 (3/4" sweat), 003-ST4 (SS 3/4" NPT), 003-SC4-1 (SS union). Suffixes: -IFC (integral flow check), -PNP (Plumb n' Plug — line cord + timer for retrofits). Send your variant and we will quote it.

ECM upgrade story: the Taco 006e3 dial is premarked with 003 performance points — see our 006e3 page.

Confirming the right replacement

Before we quote, compare these fields on your failed pump's nameplate. If any of them differ, send us a photo of the nameplate and we'll match it exactly rather than guessing:

Other Taco models

Need a Taco 003-BC4?

Send the nameplate off your failed unit. We'll confirm the match and quote the 003-BC4 or a verified equivalent with availability and lead time.

Quote this pump