Carjo O-Ring Repair Seal Kit for Polaris PB4-60 3/4 hp (2012–Current) — Shaft & Volute O-Rings + Dual Pump Shaft Seals

Carjo O-Ring Replacement Repair Seal Kit restores sealing performance to Polaris PB4-60 3/4 hp booster pumps (2012–current) with a full set of shaft and volute O-rings plus dual pump shaft seals.

Keep your Polaris booster pump running efficiently with a purpose-built repair kit that replaces worn seals and O-rings in one service. This Carjo kit bundles the common wear parts—shaft O-ring, volute O-ring, and two R0445500 (PS-4231) pump shaft seals—so you can complete a reliable rebuild without sourcing multiple components. The parts are selected to match fit and function for PB4-60 3/4 hp models from 2012 to present and come with straightforward installation guidance to streamline maintenance.

What exactly is included in the seal kit?

The kit includes all the essential sealing components needed for a standard Polaris PB4-60 booster pump rebuild. You get a shaft O-ring and a volute O-ring plus two identical pump shaft seals (R0445500 PS-4231) so both sides of the rotating assembly are sealed properly. Each component is manufactured for durability and dimensional accuracy to help restore the pump’s water-tight integrity.

• Shaft O-ring sized for PB4-60 rotating assembly
• Volute O-ring to seal the pump housing
• Two R0445500 (PS-4231) pump shaft seals for both seal faces
• Basic installation guidance to assist with replacement

How does this kit improve pump performance?

Replacing aged or damaged seals reduces leaks, cavitation risk, and pressure loss, which helps the pump maintain designed flow and pressure. Fresh seals restore the hydraulic seal between the wet end and the motor, minimizing water intrusion into the motor and reducing wear on internal components. The result is steadier operation, fewer interruptions, and a longer service life for the booster pump.

• Stops shaft and housing leaks that lower efficiency
• Reduces water contact with motor bearings and windings
• Helps maintain factory flow and pressure specifications
• Prevents premature component wear caused by leaks

Is the Carjo kit easy to install for a DIYer?

Yes — the kit is designed with DIY-friendly parts and clear, simple steps so a competent homeowner or pool technician can complete the repair. Basic hand tools, a clean workspace, and attention to seal seating are typically all that’s required. If you’re unsure about disassembly or reassembly, a professional pump tech can perform the swap quickly.

• Parts fit directly into PB4-60 3/4 hp pump wet end
• Common hand tools usually suffice for the job
• Replacement seals are pre-sized for straightforward installation
• Professional service recommended if motor removal is needed

Will this kit fit my Polaris pump model?

The Carjo repair kit is formulated specifically for Polaris PB4-60 3/4 hp booster pumps manufactured from 2012 to current model years. It is not an original Polaris-branded product but is engineered to match the dimensions and sealing requirements of those models. Verify pump model and horsepower before purchase to ensure compatibility.

• Compatible with Polaris PB4-60 3/4 hp pumps (2012–current)
• Not manufactured by Polaris Industries; aftermarket replacement parts
• Designed to meet the same sealing dimensions as OEM parts
• Check your pump’s model plate to confirm fit

Who is this for: Pool owners, maintenance professionals, and DIY technicians who need a complete, reliable seal replacement for a Polaris PB4-60 3/4 hp booster pump from 2012 onward. Choose this Carjo kit when you want a single package that includes both shaft and volute O-rings plus dual shaft seals to restore pump sealing, reduce leaks, and extend operational life without hunting down individual parts.