Answer
Feb 10, 2026 - 11:44 AM
Yes, a new crush ring is included with the engine fitting and should be replaced at the same time. The crush ring helps ensure a tight, leak-free seal, which is vital for reliable HPA system performance.
Is anything included with the fitting when I buy it? PolarStar Fusion Engine Cylinder Input Fitting 6mm
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Open Feb 10, 2026 - 11:44 AM
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PolarStar Fusion Engine Cylinder Input Fitting 6mm
This fitting is used in V2, V3 and M240 versions of the Fusion Engine. It is the internal fitting that threads into the engine's cylinder to which the 6mm air input line attaches.To replace this fitting, first remove the air line by depressing the black collar and pulling the air line from the f...
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