Diffuser Kit - R0445400 SHPF/PHPF/JEP, 0.5hp-3.0hp



Part # 5020-106

By Zodiac



Part # 5020-106

Manufacturer Code R0445400

Alternate Part #'s R0445400, 35-295-1159, JDYR0445400

Product Description

Diffuser Kit - R0445400

Kit Includes:

  • Pump Diffuser with Screw & Washer
  • Diffuser O-ring

Diffuser Kit for the following pumps:

Number of Vanes 6 Vanes
Diffuser Base OD 6-15/16"
Diffuser Eye OD 3-3/4"
Diffuser Height 7-1/8"
Diffuser Mounting Type 2 Screws
Manufacturer Jandy/Zodiac
Impeller Space ID 5"
Horsepower 0.5hp-3.0hp, 0.5hp-5.0hp, 1.5hp-2.0hp



?     Asked on 6/8/2021by Inyo Visitor

The diffuser in turning causing the curved part to extend into the opening where the basket goes. I cannot removed the basket once it's in and the diffuser has turned or not be able to put the basket back in. The company that installed it showed me how to turn in and it happened again. He said the screw probably came out. Where do the screw(s) go. I couldn't tell from the diagram.

A  Answered on 6/9/2021 by InyoPools Product Specialist Craig C.

Hello.  The diffuser is attached to the backplate with diffuser screws.  In order to re-attach the diffuser, the motor assembly must be removed from the wet end of the pump.  When installed correctly the diffuser should never rotate.  Adding a small quantity of Loctite to the diffuser screw threads will help hold the screws in place.  Attached please find an exploded parts diagram for a Jandy Stealth Pump.  This will provide some general information on where to attach the diffuser.   Jandy Stealth SHPF & SHPM Series Pump (2008-Current)

?     Asked on 6/1/2021by Patrick McQuade

Does this replace the R0445303 difuser kit that seems to be discontinued? Thanks in advance.

A  Answered on 6/1/2021 by InyoPools Product Specialist Patrick P.

Hi Patrick, The R0445303 is an impeller kit and this R0445400 is the diffuser kit that works in conjunction with the R0445303 impeller kit. Are you needing the diffuser or impeller?

  • Commented on 6/2/2021 by Product Owner

    Thanks for follow-up again... I don't think a replacement impeller or diffuser is needed; It was just that the gaskets that seemed to come with the impeller is the same price as ordering the gaskets separate. I just orderd the motor and the main spring gasket. Hopefully that gets me through the replacement. Have a good day!

    • Commented on 6/2/2021 by InyoPools Product Specialist Patrick P.

      Thanks, Patrick we really appreciate it!

      • Commented on 6/3/2021 by Product Owner

        Sorry - one last question. The installation guide I saw after buying motor suggests a graphite lubricant for gaskets. Didn't see that at all on site - any suggestion for what can be used? thanks again

?     Asked on 5/17/2021by Kevin

Does this diffuser kit include the o-rings or any other parts?

A  Answered on 5/17/2021 by InyoPools Product Specialist Patrick P.

This kit includes the Pump Diffuser with Screw, Washer and Diffuser O-ring.

  • Commented on 5/17/2021 by Product Owner

    Is that 2 screws & 2 washers which are used to hold the diffuser in place? Thank you for the quick answers.

    • Commented on 5/17/2021 by InyoPools Product Specialist Patrick P.

      Hi Kevin, Yes that is correct 2 screws & 2 washers which are used to hold the diffuser in place. Thanks so much!

?     Asked on 9/28/2020by joe

can you send part overnight? is part in your possession?

A  Answered on 10/30/2020 by InyoPools Product Specialist Hector F.

Hi Joe, yes this part is currently in stock and qualifies for expedited shipping. Once added to your cart, you can enter your shipping zip code for an estimated shipping cost. 

?     Asked on 12/2/2019by Aaron Tank

I need the screws to attach the diffuser to the backplate, do they come in this kit?

A  Answered on 12/2/2019 by InyoPools Product Specialist Lennox H.

Hi, Aaron. The Diffuser Screws are available in the Diffuser/Impeller Hardware - R0446500

?     Asked on 1/12/2017by david jordan

i have a jandy model shpm.1.0 i need the back plate impellor defuser and all hardware does this come as a kit

A  Answered on 1/12/2017 by InyoPools Product Specialist Tim Q.

Hi, David. The parts you need does not come in a kit. The following P/N's will include what you need Impeller Kit - R0445302 & Backplate Kit - R0445200.

?     Asked on 12/23/2016by Charles

The yellow lining that mates with the impeller on my diffuser is worn and there is a bit of a wobble between the 2 components. Other than that both parts are in good condition, the lining appears to be bonded in so I am assuming the diffuser needs to be replaced. Am I correct? Thank you

A  Answered on 12/23/2016 by InyoPools Product Specialist Adam Y.

Good afternoon Charles, That piece in yours should be copper or brass. It is normal for those to wear over time. Yes, you would need to replace the diffuser as this is all one piece.

?     Asked on 8/19/2016by Stuart

will this kit fit my S8PM2.0 pool pump. Mine only has 1 o' ring on the diffuser.

A  Answered on 8/19/2016 by InyoPools Product Specialist Stacey M.

Hello Stuart, Are you sure you have a S8PM not a SHPM? There is 2 diffuser orings one located on the front of the diffuser and one in the back please click here to see there is one closer to the back of the diffuser.


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