
Pentair EQ Series Motor Adaptor, 356790
30 day returns · Easy, with prepaid labels provided
Quick overview
- Genuine Pentair Factory part number 356790, not an aftermarket casting.
- EQ Series Made for the Pentair EQ Series commercial pump family.
- Joins motor to pump The adaptor is the structural link between the motor face and the pump housing.
- Commercial duty An EQ Series component, sized for the commercial pumps rather than residential models.
- Replacement part Order it when the original adaptor is cracked, corroded or has stripped mounting hardware.
- Check the diagram The EQ Series parts breakdown will confirm the adaptor before you order.
Need a hand?
Frequently bought together

EQ Series Motor Adaptor, 356790
Similar products
Other products people compare with this one.
Pentair C Series Pump Impeller, 1PH or 3PH Medium Head, 7.5HP, 070227$1,26999
Pentair EQ Series Impeller Assembly, 350027Z$49099
Pentair High Head Impeller 7.5HP for C Series Pump, 073829$1,32399
Pentair EQ Series Seal Plate, 11" x 2.5", 356795Z$92899
Pentair High Head Impeller, 5 HP, for D Series Pumps, C5-249$60099
Pentair Lock Ring/Lid Gasket for EQ Series Pumps, 350171$59199
Pentair Diffuser Assembly for EQ Series EQW300 EQ1500 | 356735$51099
Pentair Hair & Lint Strainer Pot Complete EQ Series Pumps 6"x6" | 340013$1,28599
Pentair C-Series Pump Impeller 10HP | CM-100, CMK100, CMKL-100 | 1PH or 3PH Medium Head | 070226$1,19499
Pentair C-Series Pump Impeller 20HP | CHK-200 CHKL-200 | 3PH High Head | 073832$1,34099
Pentair IntelliFlo VSF Drive Kit With Keypad, 356922Z$1,19199
Pentair IntelliPro VSF Drive Kit with Keypad, Black, 356893Z$1,22699
Pentair IntelliFlo VS Drive Kit with Keypad, Hardware Kit, Almond, 356879Z$1,16099
Pentair Drive with Cover Kit for SuperFlo VS Pump, 353127$74399
Pentair IntelliFlo VSF Drive Kit, Before 10/2020, Almond, 356880Z$99299
Pentair Impeller, 10 HP, 1 PH/3 PH, High Head, 73830$1,26999
Pentair Drive and Drive Hardware Kit for 3HP IntelliFlo3 Pool Pump, 356163Z$99299
Pentair Impeller 5 HP 1PH/3PH High Head, 073828$1,26499
Pentair EQ750 Diffuser Assembly, 7.5HP, 350033Z$69099
Pentair Purex Brass Seal Flange Machine C-52, 70906$56899
Product details
The Pentair 356790 is the motor adaptor for the EQ Series commercial pool pump. It is the genuine Pentair part.
What it is
The adaptor is the structural piece between the motor and the pump body. The motor bolts to one face and the pump housing to the other, so it sets and holds the alignment between the shaft and the impeller. When it is cracked, heavily corroded or has stripped mounting threads, the pump cannot be put back together reliably.
Ordering
Confirm the part against the EQ Series parts breakdown before you order, and inspect the adaptor whenever the motor is already off the pump for a seal or bearing job.
| Brand | Pentair |
|---|---|
| Manufacturer part number | 356790 |
| UPC | 788379689902 |
| Type | Motor adaptor |
| Part type | Pool pump part |
| Fits | Pentair EQ Series commercial pumps |
| Shipping weight | 3.2 lb |
| Ships | Parcel |
Request a quote
Need a volume price, a freight quote, or pricing in writing before you order? We reply the same business day.
From Pentair
Pentair equipment
Pentair SuperFlo VS 1.5 HP Variable Speed Pool Pump, 2.2 THP, EC-342001
Pentair MasterTemp 400 Natural Gas Pool Heater, EC-462028
Pentair Clean & Clear Plus 420 sq ft Cartridge Pool Filter, EC-160301
Pentair IntelliConnect Control & Monitoring System with Wi-Fi, EC-523317
Genuine Pentair parts
Pentair Genuine OEM Seal Kit for WhisperFlo and IntelliFlo Pool Pumps, 356198
Pentair Genuine OEM High Flow Manual Air Relief Valve, 98209800
Pentair Genuine OEM FNS Plus Element Assembly Complete, 48 Sq Ft, 59023400
Pentair Genuine OEM MasterTemp/Max-E-Therm 6-Button Control Board Kit, 461105Z



Customer reviews
More from Pentair
Pentair SuperFlo VS 1.5 HP Variable Speed Pool Pump, 2.2 THP, EC-342001$1,48900
Pentair SuperFlo 1 HP Single Speed Pool Pump, 1.1 THP, 115/208-230V, EC-3481905.0 (1)
$74800
Pentair WhisperFlo VS / VST 2.6 THP Variable Speed Pool Pump, 115/208-230V, EC-011533$1,79900
Pentair Genuine OEM HiFlow Valve 1.5 in. 6-Way Clamp Style, 262506$20399
Pentair 110/220V IntelliChlor Salt Chlorine Generator Power Center, EC-520556$79900
Web Price
Pentair IntelliChlor Plus and LT Replacement Sensor Board, 523769$39299
Pentair 3.2 kW IntelliFloXF VSF, VSF, VS+SVRS, i1, i2 Motor, 350305S$78199
Pentair IntelliChlor Plus40 Salt Chlorine Generator Replacement Cell, 40,000 Gallons, 523735-EC$1,81900
Web Price
Pentair Rainbow 320 In-Line Chlorinator, R171096$14499
Pentair Genuine OEM Clamp Kit with Tension Control, 190003$30199
Pentair IntelliChlor LT25 Salt Chlorine Generator Cell, 25,000 Gallons, 523747-EC$1,14900
Pentair IntelliFlo VS+SVRS Variable Speed Pool Pump, 3 HP Max, 3.95 THP, 230V, EC-011057$2,39900
Sta-Rite 170145 System 3 S7M120 Large and Small Cartridge Set, 25021-0200S and 25022-0201S$46799
Pentair 2 in. Multiport Valve Kit for Side Mount Sand Filters, SM-20-3, 261055$29999
Pentair IntelliChlor Plus Controller Replacement (HMI), Black, 523770$38399
Pentair 2" Valve Kit Multiport, Side Mount DE Filters SM20-2, 261152$29799
Pentair WhisperFlo and IntelliFlo Volute Housing Replacement Kit, 357149$28799
Pentair MicroBrite Color LED Pool Light 12 Volt, 14 Watt with 100' Cord, EC-620425$61900
Pentair Genuine OEM FNS Plus Element Assembly Complete, 48 Sq Ft, 59023400$39399
Pentair Amerlite Pool Light for Inground Pools with Stainless Steel Facering, 500W 120V 50' Cord, EC-602128$43900
Web Price
Questions and answers
What people ask about this product, answered by our pool techs.
What does the motor adaptor do?
Which pumps does it fit?
Is it a genuine Pentair part?
When would I need one?
Get your unadvertised price ›






