Zodiac R0445500 Mechanical Shaft Seal Replacement For Select Zodiac Jandy Pool And Spa Pumps

The Jandy website lists a different seal for my model pump, but when the package came, my model number wasn't listed and the seal was too small for the shaft. This seal isn't listed on the website, but has my model number on the package. This is the seal you need for a Jandy MaxHP or Model MHPM. it should work for any model with the first three characters of MHP.

This is a genuine Polaris part and it was the OEM replacement seal for a Polaris PB4-60 Booster Pump. It comes with installation manual for the Polaris booster pump as well as for some Jandy pumps.

CAUTION...DOESN'T FIT NEWER MODEL PUMPS.....I'm giving it 4 stars because it appears to be a decent product, but I actually didn't use it. NEWER Polaris pump modules do not use the spring loaded piece that you in the pic (i.e. the piece that fits on the impeller). However, the smaller ceramic piece does work on both old and new models. Kudos to the seller for clearly stating that it does not fit the newer pumps and shame on me for not reading what the seller stated. MEA CULPA.

Nothing I disliked. Very quickly shipped and received.

I have the original documents from my Polaris Booster Pump PB4-60 that shows part number R0445500 is the correct replacement kit. But this kit does not fit. I read later in another review that the Polaris/Zodiac company being sold resulted in mishaps (or just poor decisions) in keeping the part numbers and sizes aligned.I hope that this may help others avoid frustration, here are the measurements I took of the Ceramic ring using a dial caliper comparing my existing part vs what I got in this kit: Inner diameter - 17mm vs 20mm (This is approximately 5/8" vs 13/16") Outer diameter - 32mm vs 35 mmIt seems the company could do themselves a favor by publishing this basic information.

fit perfectly & solved my leak issue

Excellent

This part # R0445500 is for the OLDer pumps only (Pump Serial #s beginning with N or lower). For the NEWer Jandy pumps (Pump Serial #s starting with P or higher) use part # R0479400. The difference parts are due to the impeller having a modified design in the newer pumps. Therefore, the newer pumps have a ceramic seal with a smaller inner diameter.