{"product_id":"a-o-smith-century-motor-4-0-hp-2-s-56f-thru-bolt-230v-b2235-industrial-electric-motor","title":"A.O. Smith Century Motor 4.0 HP 2-S 56F Thru Bolt 230V B2235 Industrial Electric Motor","description":"\u003cdiv\u003e\n\u003ch1\u003eA.O. Smith Century Motor 4.0 HP 230V 56F Thru Bolt – 2-S Two-Speed Replacement (B2235)\u003c\/h1\u003e\n\u003cp\u003eThe A.O. Smith Century Motor 4.0 HP, 2-S, 56F\/Thru Bolt, 230V (B2235) is a trusted OEM replacement built on a legacy of engineering excellence. Designed for pool, spa, HVAC, and water-feature equipment, it delivers dependable performance with a direct-fit footprint you can count on.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003ePower and speed\u003c\/b\u003e: 4.0 HP, two-speed (2-S) configuration for adjustable performance across varying load conditions\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFrame and mounting\u003c\/b\u003e: 56F frame with thru-bolt mounting for secure, straightforward installation\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVoltage\u003c\/b\u003e: 230V single-phase operation, compatible with common residential, commercial, and pool installations\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDirect-fit replacement\u003c\/b\u003e: Proven OEM compatibility to swap into existing footprints with minimal modification\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBrand heritage\u003c\/b\u003e: Century\/A.O. Smith lineage backed by Regal Beloit America’s global support network\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIdeal applications\u003c\/b\u003e: Pool pumps, spa jets, hot tub circulation, and HVAC drive components requiring robust, durable performance\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eEngineered for reliability in demanding environments, this motor offers a long service life with consistent torque and smooth operation. The two-speed design lets you tailor flow and efficiency to your system, helping manage energy use while preserving pump and equipment longevity. The 56F\/Thru-Bolt footprint provides flexibility across a wide range of OEM housings, making replacement straightforward and downtime minimal. Backed by decades of A.O. Smith expertise and a global support network, you can source parts and service with confidence for pool, spa, and residential\/light commercial HVAC applications. When upgrading aging motors or consolidating parts for dependable downtime-free performance, the B2235 delivers trusted performance you can rely on.\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cp\u003eThe A.O. Smith Century Motor 4.0 HP, 2-S, 56F\/Thru Bolt, 230V (B2235) is a trusted replacement motor built on decades of engineering excellence. With a heritage that spans more than 75 years and a continued commitment from Regal Beloit to deliver reliable performance, this motor is engineered to keep residential, commercial, and industrial equipment running smoothly. Whether you’re upgrading an old pool pump, spa system, or a HVAC drive, this Century\/A.O. Smith unit is designed for dependable, long-lasting operation.\u003c\/p\u003e \u003ch3\u003eDirect-fit replacement with proven compatibility\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003e4.0 HP, 2-S design\u003c\/strong\u003e provides flexible performance for varying loads, helping you balance power with efficiency.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e56F frame with thru-bolt mounting\u003c\/strong\u003e ensures a secure, straightforward installation that fits a wide range of pump and equipment housings.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e230V operation\u003c\/strong\u003e aligns with standard single-phase service found in many residential, commercial, and pool installations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM heritage\u003c\/strong\u003e from A.O. Smith\/Century means OEM replacement compatibility you can count on, with a long track record across HVAC, pool, and pump applications.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart of a global, trusted lineup\u003c\/strong\u003e backed by Regal Beloit America’s worldwide support network, designed to simplify replacements and service.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal applications and use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003ePool and spa equipment: reliable replacement for pool pumps, spa jets, and hot tub circulation systems.\u003c\/li\u003e \u003cli\u003eResidential and light commercial HVAC components where a robust, through-bolt motor is required.\u003c\/li\u003e \u003cli\u003eWater features and circulating pumps where a durable, two-speed solution can optimize flow and energy use.\u003c\/li\u003e \u003cli\u003eOEM projects and aftermarket replacements that demand a proven 56F\/through-bolt footprint with 230V service.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this motor stands out\u003c\/h3\u003e\n\u003cp\u003eBeyond just specs, this motor embodies a legacy of reliability. A.O. Smith and Century motors are known for durable construction, consistent performance, and availability through an extensive network of distributors and service providers. The 4.0 HP, two-speed configuration gives you the versatility to tailor performance to your system’s demands, helping manage load, balance efficiency, and extend the life of connected equipment.\u003c\/p\u003e \u003ch3\u003ePractical tips for installation and setup\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eConfirm that your equipment’s mounting footprint matches the 56F frame and thru-bolt pattern for a seamless swap.\u003c\/li\u003e \u003cli\u003eVerify supply voltage is 230V and that wiring aligns with the equipment’s control and safety requirements.\u003c\/li\u003e \u003cli\u003eRetain or reference the original equipment’s wiring diagram and torque specs to ensure a secure, vibration-free installation.\u003c\/li\u003e \u003cli\u003eUse the motor as a direct replacement in compatible OEM applications to preserve performance characteristics and serviceability.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhen you choose the A.O. Smith Century Motor 4.0 HP, 2-S (B2235), you’re selecting a time-tested solution with global backing, engineered for consistent operation across residential, commercial, and industrial environments. If you’re upgrading aging motors or consolidating parts for reliable downtime-free performance, this 56F\/Thru Bolt, 230V motor is designed to deliver steady power where you need it most.\u003c\/p\u003e \u003cbr\u003e \u003ctable border=\"0\" cellpadding=\"5\" cellspacing=\"5\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"60%\"\u003e\u003cspan class=\"bspotext12h\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eWHY USE A.O. SMITH (AOS)\/CENTURY PRODUCTS?\u003c\/span\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd width=\"15%\"\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003ctd width=\"25%\" valign=\"top\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003e\n\u003cp\u003e\u003cspan class=\"bspotext8n\"\u003e Regal Beloit America, Inc. (Century Electric Motors \/ A.O. Smith Electric Motors) is a leading supplier of electric motors for residential, commercial, and industrial applications. With operations in the United States, Mexico, China, and Europe, Regal Beloit America, Inc. has the ability to serve its customers electric motor needs on a global basis. We offer a comprehensive line of hermetic motors (used in air conditioning compressors), fractional horsepower A\/C and D\/C motors, and integral horsepower motors. We sell our products directly to original equipment manufacturers (OEMs), and replacement motors to HVAC and pool\/pump distributors.\u003cbr\u003e \u003cbr\u003e Bath Parts is proud to say that we have carried and sold Century\/A.O. Smith (AOS) replacement motors since we started in the Bath \u0026amp; Spa industry in the early 1980's. At this time, the company was introducing their Centurion switchless, permanent split capacitor motors for the swimming pool, spa, and jetted tub industries. A.O. Smith (AOS)\/Century has been committed to providing quality products for more than 75 years, and that commitment continues today. If you have any questions about their product line, please feel free to ask us. We carry the complete line of their products!\u003cbr\u003e \u003cbr\u003e\u003cbr\u003e \u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e \u003cbr\u003e \u003ctable border=\"0\" cellpadding=\"5\" cellspacing=\"5\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"60%\"\u003e\u003cspan class=\"bspotext12h\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eWHY USE A.O. SMITH (AOS)\/CENTURY PRODUCTS?\u003c\/span\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd width=\"15%\"\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003ctd width=\"25%\" valign=\"top\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003e\n\u003cp\u003e\u003cspan class=\"bspotext8n\"\u003e Regal Beloit America, Inc. (Century Electric Motors \/ A.O. Smith Electric Motors) is a leading supplier of electric motors for residential, commercial, and industrial applications. With operations in the United States, Mexico, China, and Europe, Regal Beloit America, Inc. has the ability to serve its customers electric motor needs on a global basis. We offer a comprehensive line of hermetic motors (used in air conditioning compressors), fractional horsepower A\/C and D\/C motors, and integral horsepower motors. We sell our products directly to original equipment manufacturers (OEMs), and replacement motors to HVAC and pool\/pump distributors.\u003cbr\u003e \u003cbr\u003e Bath Parts is proud to say that we have carried and sold Century\/A.O. Smith (AOS) replacement motors since we started in the Bath \u0026amp; Spa industry in the early 1980's. At this time, the company was introducing their Centurion switchless, permanent split capacitor motors for the swimming pool, spa, and jetted tub industries. A.O. Smith (AOS)\/Century has been committed to providing quality products for more than 75 years, and that commitment continues today. If you have any questions about their product line, please feel free to ask us. We carry the complete line of their products!\u003cbr\u003e \u003cbr\u003e\u003cbr\u003e \u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e","brand":"A.O. Smith (AOS) \/ Century Electrical","offers":[{"title":"Default Title","offer_id":40241195319338,"sku":"B2235","price":545.31,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/4014\/1354\/products\/35-126-1156_xl.jpg?v=1769976035","url":"https:\/\/bathparts.com\/en-um\/products\/a-o-smith-century-motor-4-0-hp-2-s-56f-thru-bolt-230v-b2235-industrial-electric-motor","provider":"Bath \u0026 Spa Superstore","version":"1.0","type":"link"}