[Important Note-Eliminate Noise]: Ensure the intake hose O-ring (typically Orange or Black) is replaced. This key maintenance item directly prevents noise issues. [Reference Part Number]: 96-5419, 21-5419, 965419, 215419, 56110PZDA02, 56110PNB306, 56110PNBA01, 56110PNBA03013.
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