LBZ LLY LMM Duramax 2004.5-10 Mouth Piece Small PCV Plug

In stock
Duramax Diesel 2004.5-10 LBZ LLY LMM Mouth Piece Small PCV Plug Block Off Cover Cap 551506

WARNING - This product can expose you to chemicals including lead, which is known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to


ALUMINUM: Most of the aluminum alloys used today contain some level of lead, usually less than .1%. Lead is known to the state of California to cause cancer and reproductive harm. Most aluminum alloys are physiologically inert in their solid form, and the lead is contained within, however user-generated dust and/or fumes may pose a hazard if inhaled or ingested. Heating beyond a certain temperature may also provide avenues for exposure.


STEEL (steel bolts):  Steel is an iron alloy with several metals including Nickel and Chromium. Both Nickel and Chromium are known to the State of California to cause cancer and reproductive harm, respectfully. This warning applies to stainless steels as well.

Duramax PCV Small Plug


  • Compatible with 2004.5 to 2010 LBZ LLY LMM Duramax Only
  • Has dual Oring seals to prevent plug from vibrating loose
  • Includes: 1 "Mouth Piece" PCV plug w/ Orings
  • Made in Wichita, Kansas from aerospace grade, USA produced, billet aluminum
  • Compatible with intakes with 0.78" Diameter Holes
  • Pair this part with our part #551625 PCV reroute ports


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