Pentair
Pentair Challenger .75HP CFII-NI-3/4A Repl Motor Kit B2852 w/GO-KIT-5 pool accessory
Replacement motor kit for pool pumps includes a 0.75 HP A.O. Smith B2852 motor plus a GO-KIT-5 seal and O-ring set
- TypePool Pump Motors
- .75 HP motor restores pump performance
- AO Smith B2852 motor provides reliable replacement
- GO-KIT-5 includes six seals for complete rebuild
- Housing O-ring 419 and diffuser O-ring 421 prevent leaks
- Strainer O-ring 301 and lid O-rings 318/302 ensure tight seal
Replacement motor kit for Pentair Challenger pumps
This kit supplies a 0.75 HP AO Smith B2852 motor designed as a direct replacement for Pentair Challenger pump models. It includes the GO-KIT-5 seal and O-ring set so the entire wet end can be refreshed in one service visit. Pool owners and technicians fitting a Challenger pump will find the correct motor and seals matched in a single package.
Thermals noise and power draw in normal use
The motor is rated at 0.75 horsepower for standard residential pool circulation duties. No decibel, wattage or temperature figures are provided by the manufacturer for this replacement unit. Installers should follow the pump housing manufacturer's wiring and ventilation guidelines to ensure normal operating temperatures and sound levels.
GO-KIT-5 seal and O-ring bundle
GO-KIT-5 adds an AS-200 mechanical seal plus five O-rings covering the housing, diffuser, strainer and lid interfaces. Replacing these parts together prevents air leaks and water loss that reduce pump efficiency and shorten motor bearing life. The kit eliminates the need to source each seal separately when servicing the Challenger pump.
Highlights
- .75 HP motor restores pump performance
- AO Smith B2852 motor provides reliable replacement
- GO-KIT-5 includes six seals for complete rebuild
- Housing O-ring 419 and diffuser O-ring 421 prevent leaks
- Strainer O-ring 301 and lid O-rings 318/302 ensure tight seal
Specifications
| Type | Pool Pump Motors |
|---|
Questions about this item
How do I install the B2852 motor and which step is commonly missed?
Replace the motor and fit every seal in the GO-KIT-5 — O-419 housing O-ring, O-421 diffuser O-ring, O-301 strainer O-ring, O-318/O-302 lid O-ring and AS-200 seal. The step most often skipped is lubricating and seating both the housing and diffuser O-rings before reassembly.
Which parts from the GO-KIT-5 will need replacement after normal wear?
The AS-200 mechanical seal and all five O-rings — O-419, O-421, O-301, O-318/O-302 — are consumables that degrade with chemical exposure and thermal cycling; plan to replace them each time the motor is serviced.
What is the first limit reached when the .75HP motor runs continuously under load?
The motor’s thermal overload protector trips first when sustained current exceeds the nameplate rating, shutting the pump down until the windings cool to a safe temperature.
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