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The K&N Air Oil Separator for 2020–2023 GM 2500/3500 6.6L engines captures crankcase oil blow-by in a high-capacity reservoir to protect the intake tract and reduce oil ingestion. Vehicle-specific engineering, factory-style hose connections, tool-free reservoir emptying and roughly 30-minute install make it convenient to fit. Units are covered by K&N’s No-Hassle Lifetime Limited Warranty.
K&N 20-23 GM 2500/3500 6.6L Oil Separator Catch Can
