Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
ARMSTRONG Pump Motor: Mfr Part # 819031-400, Single Phase, 115V AC, 1/2 hp - OEM Motors for Circulator Pumps
ARMSTRONGOEM Motors for Circulator Pumps

ARMSTRONG Pump Motor: Mfr Part # 819031-400, Single Phase, 115V AC, 1/2 hp

The ARMSTRONG Pump Motor (Mfr Part # 819031-400) is an OEM motor designed for use with Compass R series circulator pumps. This single-phase motor operates at 115V AC with a 1/2 hp rating and features a 48Z frame…

SKU 3G-OTH-83295

Brand
ARMSTRONG
Item
Pump Motor: Mfr Part # 819031-400, Single Phase, 115V AC, 1/2 hp
Category
OEM Motors for Circulator Pumps
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

ARMSTRONG
Manufacturer Part Number
819031-400
Type
Single Phase, 1/2 hp
AC
115V
Frame Size
48Z
Nameplate Voltage
115V AC
Compatible with Series
Compass R
Motor Frame Designation
48Z
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

ARMSTRONG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The ARMSTRONG Pump Motor (Mfr Part # 819031-400) is an OEM motor designed for use with Compass R series circulator pumps. This single-phase motor operates at 115V AC with a 1/2 hp rating and features a 48Z frame designation.

Frequently Asked Questions

What is the ARMSTRONG 819031-400 pump motor used for?

The ARMSTRONG 819031-400 is an OEM replacement motor for Compass R series circulator pumps. It powers water circulation in HVAC and hydronic heating systems, ensuring reliable flow in commercial and industrial applications.

What are the specifications of the ARMSTRONG 819031-400 motor?

The ARMSTRONG 819031-400 is a single-phase motor rated at 1/2 hp, 115V AC, with a 48Z frame designation. It is designed specifically for Compass R series circulator pumps and carries manufacturer part number 819031-400.

Where to buy the ARMSTRONG 819031-400 motor worldwide?

3G Electric supplies the ARMSTRONG 819031-400 motor worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this OEM motor for Compass R pumps.

How to install the ARMSTRONG 819031-400 motor on a Compass R pump?

Ensure power is off before installation. Align the 48Z frame motor shaft with the pump coupling, secure mounting bolts, and reconnect wiring per the nameplate (115V AC, single phase). Verify rotation direction before full operation.

Used in

Common applications for ARMSTRONG
Hydronic heating systems — ARMSTRONG general-purpose inline circulator pump 182202-657 for potable water circulation
Pump motor replacement — ARMSTRONG pump motor 817025-007 for S&H 4-Series circulator pumps
Flange installation on E32.2HT pumps — ARMSTRONG flange hardware kit 810120-353K with steel bolts and rubber gaskets
Bearing replacement in H-32 series pumps — ARMSTRONG bearing assembly 816549MF-091 for in-line circulating pumps
Piping system connections — ARMSTRONG standard flanges 806074-621k for H-6 6 model with stainless steel and EPDM
Retrofit of pump flanges — ARMSTRONG flange 561100LF-001 for ASTRO EXPRESS 2 SYSTEM union-type connections

ARMSTRONG Products

3G Electric supplies ARMSTRONG oem motors for circulator pumps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Pump Accessories →Valves & Regulation →Motors & Drives →All Products →

Similar products

Matched by specification & description
ARMSTRONG Pump Motor: Mfr Part # 818041-500, Single Phase, 120V AC, 3/4 hp, 48Z Frame Size. Key specifications — Motor Frame Designation: 48Z; Nameplate Voltage: 120V AC; Manufacturer Part Number: 818041-500; Compatible with Series: S&H 6-Series.
ARMSTRONG
ARMSTRONG Pump Motor: Mfr Part # 818041-500, Single Phase, 120V AC, 3/4 hp, 48Z Frame Size. Key specifications — Motor Frame Designation: 48Z; Nameplate Voltage: 120V AC; Manufacturer Part Number: 818041-500; Compatible with Series: S&H 6-Series.
ARMSTRONG Pump Motor: Mfr Part # 818041-400, Single Phase, 115V AC, 1/2 hp, 48Z Frame Size. Key specifications — Motor Frame Designation: 48Z; Nameplate Voltage: 115V AC; Manufacturer Part Number: 818041-400; Compatible with Series: S&H 5-Series.
ARMSTRONG
ARMSTRONG Pump Motor: Mfr Part # 818041-400, Single Phase, 115V AC, 1/2 hp, 48Z Frame Size. Key specifications — Motor Frame Designation: 48Z; Nameplate Voltage: 115V AC; Manufacturer Part Number: 818041-400; Compatible with Series: S&H 5-Series.
ARMSTRONG Pump Motor: Mfr Part # 817025-007, Single Phase, 120V AC, 1/4 hp, 48Z Frame Size. Key specifications — Motor Frame Designation: 48Z; Nameplate Voltage: 120V AC; Manufacturer Part Number: 817025-007; Compatible with Series: S&H 4-Series.
ARMSTRONG
ARMSTRONG Pump Motor: Mfr Part # 817025-007, Single Phase, 120V AC, 1/4 hp, 48Z Frame Size. Key specifications — Motor Frame Designation: 48Z; Nameplate Voltage: 120V AC; Manufacturer Part Number: 817025-007; Compatible with Series: S&H 4-Series.
ARMSTRONG Pump Motor: Mfr Part # 816141-001, Single Phase, 115V AC, 1/4 hp, 48Z Frame Size. Key specifications — Motor Frame Designation: 48Z; Nameplate Voltage: 115V AC; Manufacturer Part Number: 816141-001; Compatible with Series: S&H 5-Series.
ARMSTRONG
ARMSTRONG Pump Motor: Mfr Part # 816141-001, Single Phase, 115V AC, 1/4 hp, 48Z Frame Size. Key specifications — Motor Frame Designation: 48Z; Nameplate Voltage: 115V AC; Manufacturer Part Number: 816141-001; Compatible with Series: S&H 5-Series.
ARMSTRONG Pump Motor: Mfr Part # 816141-002, Single Phase, 115V AC, 3/8 hp, 48Z Frame Size. Key specifications — Motor Frame Designation: 48Z; Nameplate Voltage: 115V AC; Manufacturer Part Number: 816141-002; Compatible with Series: S&H 5-Series.
ARMSTRONG
ARMSTRONG Pump Motor: Mfr Part # 816141-002, Single Phase, 115V AC, 3/8 hp, 48Z Frame Size. Key specifications — Motor Frame Designation: 48Z; Nameplate Voltage: 115V AC; Manufacturer Part Number: 816141-002; Compatible with Series: S&H 5-Series.

More from ARMSTRONG

View all ARMSTRONG parts →
ARMSTRONG Pump Motor: Mfr Part # 819032-400, Single Phase, 230V AC, 1/2 hp, 48Z Frame Size. Key specifications — Motor Frame Designation: 48Z; Nameplate Voltage: 230V AC; Manufacturer Part Number: 819032-400; Compatible with Series: Compass R.
ARMSTRONG
ARMSTRONG Pump Motor: Mfr Part # 819032-400, Single Phase, 230V AC, 1/2 hp, 48Z Frame Size. Key specifications — Motor Frame Designation: 48Z; Nameplate Voltage: 230V AC; Manufacturer Part Number: 819032-400; Compatible with Series: Compass R.
ARMSTRONG
ARMSTRONG
ARMSTRONG Circulating Pump Motor: Mfr Part # 817025-005, Single Phase, 115V AC, 1/4 hp. Key specifications — Motor Frame Designation: 48; Nameplate Voltage: 115V AC; Manufacturer Part Number: 817025-005.
ARMSTRONG Pump Motor: Mfr Part # 819032-210, Single Phase, 115V AC, 1/4 hp, 48Z Frame Size. Key specifications — Motor Frame Designation: 48Z; Nameplate Voltage: 115V AC; Manufacturer Part Number: 819032-210; Compatible with Series: Compass R.
ARMSTRONG
ARMSTRONG Pump Motor: Mfr Part # 819032-210, Single Phase, 115V AC, 1/4 hp, 48Z Frame Size. Key specifications — Motor Frame Designation: 48Z; Nameplate Voltage: 115V AC; Manufacturer Part Number: 819032-210; Compatible with Series: Compass R.
ARMSTRONG Pump Motor: Mfr Part # 819031-210, Single Phase, 115V AC, 1/4 hp, 48Z Frame Size. Key specifications — Motor Frame Designation: 48Z; Nameplate Voltage: 115V AC; Manufacturer Part Number: 819031-210; Compatible with Series: Compass R.
ARMSTRONG
ARMSTRONG Pump Motor: Mfr Part # 819031-210, Single Phase, 115V AC, 1/4 hp, 48Z Frame Size. Key specifications — Motor Frame Designation: 48Z; Nameplate Voltage: 115V AC; Manufacturer Part Number: 819031-210; Compatible with Series: Compass R.
ARMSTRONG Pump Motor: Mfr Part # 819031-200, Single Phase, 115V AC, 1/4 hp, 48Z Frame Size. Key specifications — Motor Frame Designation: 48Z; Nameplate Voltage: 115V AC; Manufacturer Part Number: 819031-200; Compatible with Series: Compass R.
ARMSTRONG
ARMSTRONG Pump Motor: Mfr Part # 819031-200, Single Phase, 115V AC, 1/4 hp, 48Z Frame Size. Key specifications — Motor Frame Designation: 48Z; Nameplate Voltage: 115V AC; Manufacturer Part Number: 819031-200; Compatible with Series: Compass R.
ARMSTRONG Circulating Pump Motor: Mfr Part # 805316-010, Single Phase, 115/230V AC, 1/8 hp. Key specifications — Motor Frame Designation: 48; Nameplate Voltage: 115/230V AC; Manufacturer Part Number: 805316-010; Compatible with Series: 174031-099.
ARMSTRONG
ARMSTRONG Circulating Pump Motor: Mfr Part # 805316-010, Single Phase, 115/230V AC, 1/8 hp. Key specifications — Motor Frame Designation: 48; Nameplate Voltage: 115/230V AC; Manufacturer Part Number: 805316-010; Compatible with Series: 174031-099.
ARMSTRONG Pump Motor: Mfr Part # 811757-001, Single Phase, 115V AC, 1/2 hp, 48Z Frame Size. Key specifications — Motor Frame Designation: 48Z; Nameplate Voltage: 115V AC; Manufacturer Part Number: 811757-001; Compatible with Series: S&H 5-Series.
ARMSTRONG
ARMSTRONG Pump Motor: Mfr Part # 811757-001, Single Phase, 115V AC, 1/2 hp, 48Z Frame Size. Key specifications — Motor Frame Designation: 48Z; Nameplate Voltage: 115V AC; Manufacturer Part Number: 811757-001; Compatible with Series: S&H 5-Series.
ARMSTRONG Circulating Pump Motor: Mfr Part # 817025-001, Single Phase, 115, 1/6 hp, 48 Frame Size. Key specifications — Motor Frame Designation: 48; Nameplate Voltage: 115; Manufacturer Part Number: 817025-001; Compatible with Series: 174031-123.
ARMSTRONG
ARMSTRONG Circulating Pump Motor: Mfr Part # 817025-001, Single Phase, 115, 1/6 hp, 48 Frame Size. Key specifications — Motor Frame Designation: 48; Nameplate Voltage: 115; Manufacturer Part Number: 817025-001; Compatible with Series: 174031-123.