Armstrong 811757-001 Motor 1/2HP 1725RPM 115/208-230V DP 56Z
The Armstrong 811757-001 is a 1/2 hp, 1725 rpm, 115/208-230-volt, single-phase motor with a drip-enclosure and 56Z frame. It repairs Series S&H circulator pump models S-55, H-53, and H-63.
$994.50
The Armstrong 811757-001 is a 1/2 hp, 1725 rpm, 115/208-230-volt, single-phase motor with a drip-enclosure and 56Z frame. It repairs Series S&H circulator pump models S-55, H-53, and H-63.

The Armstrong 811757-001 is a 1/2 hp, 1725 rpm, 115/208-230-volt, single-phase motor with a drip-enclosure and 56Z frame. It repairs Series S&H circulator pump models S-55, H-53, and H-63.
| Weight | 25 lbs |
|---|---|
| Dimensions | 12 × 12 × 11 in |
| Brand | Armstrong Fluid Technology |
|---|---|
| MPN | 811757-001 |
| Model | 56B17D11009A |
| Pump Part Type | Motor |
| Pump Series Repaired | Series H, Series S |
| Pump Model Repaired | H-53, H-63 S-55 |
| Replaces | 116640-062 |
| Weight | 24.21 |
Armstrong Fluid Technology Circulator Pumps Replacement Parts Catalog
Armstrong Fluid Technology Circulator Pumps Replacement Parts Condensed Catalog
Armstrong Fluid Technology Circulator Pumps Replacement Parts Brochure
Armstrong Fluid Technology Circulator Pumps Parts Comparison Bulletin

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Frequently asked questions
Inline Sales & Services Ltd. specializes in hydronic pumps, pump systems, parts, and related solutions for commercial, industrial, and HVAC applications. We provide sales, service, and technical support to customers throughout British Columbia and across Canada.
We are located in Surrey, British Columbia, and serve customers locally in the Lower Mainland as well as nationwide.
Yes. We ship pumps, parts, and equipment anywhere in Canada. Shipping options and timelines vary depending on product availability and destination.
We supply a wide range of pumps, including:
Hydronic pumps
Circulation pumps
Inline pumps
End suction pumps
Booster pumps
HVAC and mechanical system pumps
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Yes. We carry and source a wide selection of pump parts, including seals, bearings, impellers, motors, and gaskets. If we don’t have a part in stock, we can usually source it quickly.
Yes. Inline Sales & Services Ltd. has extensive experience with Bell & Gossett pumps and replacement parts, including repairs and upgrades.
Absolutely. Our knowledgeable team can help you identify the correct pump or part based on your system requirements, model numbers, or application details.
Yes. We provide professional pump repair and service solutions for many makes and models. Our goal is to restore performance, extend equipment life, and minimize downtime.
You can place an order by contacting us directly by phone or email. Our team will confirm availability, pricing, and shipping details.
You can reach us by phone or email, or by using the contact form on our website. We’re happy to answer questions, provide quotes, or assist with technical inquiries.

The Armstrong circulator pump is one of the best on the market and with their expertise in fluid flow, heat transfer, variable speed, and demand based control, Armstrong Fluid Technology leads the fluid systems industry, including plumbing and hvac in providing the most energy efficient and cost effective solutions to building professionals and owners around the globe. We carry both the commercial and residential line of Armstrong Pumps including commercial series 4030 base mounted end suction pumps, series 5200 & 5240 sump sewage pumps and series 4300 vertical in-line pumps, series 4360 vertical in-line pumps, 4380 vertical in-line pumps. Most residential pumps are normally stocked including the Armstrong Astro circulators, Armstrong series E.2 circulators and the Armstrong series S&H 3-piece circulating pumps.