Product Overview

The Pentair 356790Z Motor Adapter is a genuine OEM replacement component designed for Pentair EQ Series commercial pool and spa pumps. The adapter provides the structural connection between the electric motor and the pump hydraulic assembly, helping maintain proper motor alignment and secure attachment to the pump wet end.

Manufactured from durable PPO resin, the 356790Z is designed to resist corrosion and withstand demanding commercial pool environments. It is compatible with a broad range of EQ Series pump configurations from 3 HP through 15 HP.

Key Features

Genuine Pentair OEM Replacement
Factory replacement motor adapter engineered specifically for compatible Pentair EQ Series commercial pumps.

Broad EQ Series Compatibility
Designed for multiple EQ Series configurations, including EQW, EQWK, EQ, and EQK commercial pump models.

PPO Resin Construction
Durable non-corrosive plastic construction provides excellent resistance to pool equipment environments.

Maintains Motor Alignment
Provides the mounting interface between the motor and pump wet end to help maintain proper shaft and hydraulic component alignment.

Commercial-Duty Design
Engineered for high-flow commercial swimming pool, spa, and aquatic circulation equipment.

Benefits

• Genuine Pentair OEM replacement component
• Compatible with numerous EQ Series pump models
• Corrosion-resistant PPO resin construction
• Helps maintain proper motor-to-pump alignment
• Suitable for both motor replacement and pump rebuilding
• Allows replacement of a damaged adapter without replacing the complete pump
• Designed for demanding commercial pool applications

Specifications

Installation Information

Installation of the motor adapter requires separation of the electric motor from the EQ Series pump wet end. Electrical power must be completely disconnected and locked out before servicing.

Proper alignment of the motor adapter, seal plate, motor shaft, and pump hydraulic components is important during reassembly. Inspect the mechanical shaft seal, seal plate, impeller, diffuser, O-rings, motor supports, and mounting hardware while the pump is disassembled.

Installation by a qualified commercial pool service professional is recommended.

Confirm Before Ordering

Pentair part 356790Z is designed for compatible EQ Series commercial pumps including:

• EQW300
• EQWK300
• EQW500
• EQWK500
• EQ500
• EQK500
• EQ750
• EQK750
• EQ1000
• EQK1000
• EQK1500

Confirm the existing motor adapter part number and exact pump model before ordering, particularly on specialty-voltage, TEFC, export, or older EQ Series configurations.

Warranty Information

The Pentair 356790Z carries a 1-year general warranty. Warranty eligibility and coverage may depend on proper installation, application, purchase channel, proof of purchase, and current Pentair warranty requirements.

Customer Q&A

Q: Is the Pentair 356790Z a genuine OEM part?
Yes. It is a genuine Pentair replacement motor adapter for compatible EQ Series commercial pumps.

Q: What does the motor adapter do?
The motor adapter connects and supports the electric motor at the pump wet end while helping maintain proper alignment between the motor shaft and hydraulic components.

Q: What material is the adapter made from?
Pentair specifies PPO resin for the EQ Series motor adapter.

Q: Does this include the motor?
No. This listing is for the motor adapter only. The motor, seal plate, shaft seal, impeller, diffuser, pump housing, and other components are sold separately unless specifically stated.