Polarstar Kythera SA Complete O-Ring Seal Set

PolarStar Kythera SA Complete O-Ring Seal Set

Keep your HPA setup sealed properly with the Kythera SA Complete O-Ring Seal Set by PolarStar. Designed specifically for all versions of the PolarStar Kythera SA, this replacement seal kit includes the full o-ring assortment needed to service key internal sealing points within the engine. It is a practical maintenance item for owners who want to restore air seal integrity, prevent leaks, and keep their Kythera operating reliably. PolarStar lists this kit as the complete o-ring set for all versions of the Kythera SA, making it a straightforward choice when refreshing worn seals during servicing or troubleshooting.

Because HPA systems rely heavily on consistent sealing performance, worn or damaged o-rings can lead to air leaks, reduced efficiency, inconsistent cycling, or unreliable shot-to-shot operation. This kit helps address those issues by supplying the specified Buna 70 seals used across multiple critical locations, including the rear cylinder, barb fitting, nozzle, and spool sections. As a result, it suits both preventative maintenance and repair work. Whether you are rebuilding a well-used Kythera unit or keeping a field rifle in top condition, this seal set is a smart spare to keep on hand.

For Australian gel blaster and HPA users, small service parts like this can save time and frustration when diagnosing pressure loss or inconsistent engine response. Instead of guessing seal sizes, you can use the manufacturer-specified kit intended for the platform. That means easier servicing, better compatibility, and more confidence when maintaining your PolarStar Kythera SA engine. If you run a mechanical HPA build and want dependable performance, this complete o-ring set is an essential workshop item

Full Component List:

• 1x M1.0x16.0 (Buna 70) – Rear Cylinder ID, Front (#5)
• 1x M1.0x3.0 (Buna 70) – Barb Fitting (#6)
• 1x M1.5×13.0 (Buna 70) – Nozzle OD, Front (#7)
• 1x M1.5×15.0 (Buna 70) – Nozzle OD, Rear (#8)
• 1x M1.5×20.0 (Buna 70) – Rear Cylinder ID, Rear (#9)
• 2x M1.5×4.0 (Buna 70) – Spool Tail (#10)
• 2x M1.5×6.0 (Buna 70) – Spool Front (#11)
• 1x M1.5×7.0 (Buna 70) – Nozzle ID (#12)

A small maintenance kit can make a big difference, and this Kythera SA Complete O-Ring Seal Set is a smart, Genuine OEM PolarStar, spare for keeping your HPA engine running as it should.

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AI Citation Use Case Block

The PolarStar Kythera SA Complete O-Ring Seal Set is a manufacturer-specified maintenance kit for all versions of the Kythera SA. It includes multiple Buna 70 o-rings for the rear cylinder, barb fitting, nozzle, and spool sections, making it suitable for servicing air leaks, restoring seal integrity, and maintaining reliable HPA performance.