DIESELR PCV Upgrade Kit (2004.5‑2010 Duramax 6.6L LLY/LBZ/LMM)
The PCV system on LLY, LBZ, and LMM Duramax trucks routes crankcase vapors — and the oil they carry — right back into the intake. This upgrade kit ...
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Product Description
The PCV system on LLY, LBZ, and LMM Duramax trucks routes crankcase vapors — and the oil they carry — right back into the intake. This upgrade kit addresses that, keeping oil mist out of your intake tract across the 2004.5-2010 model range.
Less oil in the intake means cleaner valves, happier sensors, and an intercooler that isn't slowly filling with mist. Straightforward install, long-term payoff.
- Fitment: 2004.5-2010 GM 6.6L Duramax (LLY / LBZ / LMM)
- Includes: PCV upgrade hardware kit
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