U.S MOTOR 1.5 HP SQUARE FLANGE S.SPEED - ASB858

SKU: ASB858
Regular price $285.34

The US Motor ASB858 1.5HP Square Flange Pool Motor delivers the professional-grade performance pool contractors need for reliable in-ground pump installations. Engineered specifically for PacFab Challenger, Whisperflo, and Pentair pumps, this motor provides consistent 3450 RPM operation with dual voltage capability for maximum installation flexibility.

Professional Installation Benefits

The square flange mount design with 4 non-threaded bolt holes ensures quick, secure installations that reduce labor time on job sites. Triple bearing protection with double sealed ball bearings, lip seal, and water slinger provides extended service life, minimizing costly callback visits. The switchless design and optimized internal airflow reduce heat buildup for reliable continuous duty operation.

Why Pool Contractors Choose MT Pools

MT Pools understands the demands of professional pool installation and service. Our superior customer service includes technical support from industry experts, ensuring you get the right motor for every application. With our B2B wholesale pricing and reliable inventory, your projects stay profitable and on schedule.

Frequently Asked Questions

What pumps is the ASB858 compatible with?

The ASB858 is designed for in-ground pool pumps including PacFab Challenger, Whisperflo, and Pentair models. It replaces Century B859, B2859, and US Motor EB859 motors.

Can this motor operate on both 115V and 230V?

Yes, the ASB858 features dual voltage capability (115/230V) with corresponding amperage of 21.6/10.8 amps, providing installation flexibility for different electrical setups.

What bearing protection does this motor offer?

The motor features triple bearing protection including double sealed ball bearings, lip seal, and water slinger for maximum durability and extended service life in pool applications.

Does MT Pools offer technical support for motor selection?

Yes, MT Pools provides expert technical guidance to help contractors select the right motor for each application, backed by superior customer service and B2B support.

Order Your Professional Pool Motors Today

Trust MT Pools for your pool motor needs. Our team of experts is ready to support your success with fast shipping, competitive wholesale pricing, and the technical expertise you need to keep your projects running smoothly.

• 1.5HP full-rated to 2.25HP THP with 3450 RPM performance
• Dual voltage 115/230V operation (21.6/10.8 amps)
• Square flange mount (1081 design) with 4 non-threaded bolt holes
• Triple bearing protection: Double sealed ball bearing, lip seal, water slinger
• 5/8" diameter threaded stainless steel shaft (1/2-20 UNF-2A threads)
• NEMA 56Y frame design for standard pool pump compatibility
• Open Drip Proof (ODP) enclosure for outdoor applications
• Switchless design with optimized internal airflow
• Continuous duty rated for maximum ambient temperature 50°C
• Compatible with PacFab Challenger, Whisperflo, and Pentair pumps
• Replaces Century B859, B2859, and US Motor EB859 models
• Auto overload protection with Class B insulation
• Non-reversible CCW rotation facing shaft
• 1-year manufacturer warranty