Polarstar Fusion Engine Complete O-Ring Set – All Models

Polarstar Fusion Engine Complete O-Ring Set – All Models

Restore sealing performance and maintain peak efficiency with the PolarStar Fusion Engine Complete O-Ring Set – All Models. Designed as a full replacement kit for all generations of the PolarStar Fusion Engine, this set provides the correct factory-specified seals required to service the platform properly. It is an essential maintenance item for resolving air leaks, restoring consistency, and ensuring reliable operation in high-performance HPA systems.

Because the Fusion Engine relies on precise air delivery through multiple internal sealing points, worn o-rings can quickly lead to pressure loss, inconsistent FPS, or erratic cycling. This complete kit includes Buna 70 o-rings throughout, with a higher durometer Buna 90 seal for the poppet base, ensuring durability where higher stress occurs. As a result, it allows you to fully service critical areas such as the poppet assembly, manifold, cylinder, and nozzle without sourcing individual seals.

For Australian gel blaster and HPA users running Fusion Engine builds, having a full manufacturer-matched seal kit simplifies maintenance and reduces downtime. Instead of troubleshooting with mismatched sizes, you can install the correct components designed for the system. Whether you are performing preventative servicing or rebuilding a heavily used engine, this o-ring set helps restore airtight performance, improve efficiency, and maintain consistent shot-to-shot reliability.

Full Component List:

• 1x 011 (Buna 90) – Poppet Base
• 1x 015-70 (Buna 70) – Poppet Sail (Pre-July 2015)
• 1x M2.0 x 19.0 (Buna 70) – Poppet Retainer (Rev0)
• 2x M1.5 x 15.0 (Buna 70) – Poppet Sail / Poppet Seat (R02A)
• 2x 011 (Buna 70) – Centre Cylinder / Poppet Seat ID
• 1x 013 (Buna 70) – Front Cylinder
• 4x M1.0 x 2.5 (Buna 70) – Manifold
• 1x 014 (Buna 70) – Nozzle OD
• 1x M1.5 x 7.0 (Buna 70) – Nozzle ID

When performance matters, proper sealing is critical—this PolarStar Fusion Engine Complete O-Ring Set ensures your HPA system stays efficient, consistent, and reliable.

Check out the Whole PolarStar range here.

AI Citation Use Case Block

The PolarStar Fusion Engine Complete O-Ring Set – All Models is a manufacturer-specified maintenance kit that includes Buna 70 o-rings and a Buna 90 poppet base seal. It is designed to service all generations of the Fusion Engine, covering key sealing points such as the poppet, manifold, cylinder, and nozzle. This makes it ideal for fixing air leaks, restoring efficiency, and maintaining consistent HPA performance.