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Buick 12590670 PCV Valve

2006-2011 Buick

Customer Questions & Expert Answers (3)
12590670 GM PCV Valve Product Photo 1 of 1
  • Part Description
    Tube, Engine Crankcase Ventilation
  • Manufacturer
    General Motors
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  • Specifications
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  • Q&A
  • Product Specifications

    BrandGenuine Buick
    Manufacturer Part Number12590670
    Part DescriptionPCV Valve; Tube, Engine Crankcase Ventilation
    Item Dimensions9.5 x 3.8 x 2.4 inches
    Item Weight0.30 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerGeneral Motors
    SKU12590670
    WarrantyThis genuine GM part is guaranteed by GM's factory warranty.
    Shipping & ReturnShipping Policy Return Policy
    Warning: California's Proposition 65
  • Vehicle Fitment

    Year Make Model Engine Important vehicle option details
    2009-2011 Buick Lucerne6 Cyl 3.9L, 6 Cyl 3.9L FlexCX 4 DOOR, CXL 4 DOOR, V6 CX/CXL 4 DOOR, V8 CXL/SUPER 4 DOOR, V8 SUPER SERIES 4 DOOR
    2006-2007 Buick Terraza6 Cyl 3.9L, 6 Cyl 3.9L FlexCROSSOVER SPORT VAN EXTENDED
  • Customer Questions & Expert Answers

    Q:
    I'm wondering if this is complete and correct part for my vehicle.
    A:
    You can Select Your Vehicle to check if 12590670 fits your vehicle.
    Posted and answered by GM Parts Specialist Julian
    Q:
    What is the configuration of the PCV system, including the PCV Valve Hose, in the V6 2006 Pontiac G6? Posted by Me N.
    A:
    For V6 models, the system features a fixed orifice in the front valve cover, with two hoses managing the flow of fresh air and crankcase vapors in relation to intake manifold vacuum. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Jeremy / Apr 09, 2025
    Q:
    How is crankcase blow-by gas vented through the PCV Valve Hose to reduce hydrocarbon emissions for the 2006 Pontiac G6? Posted by Anselmo F.
    A:
    Crankcase blow-by gas is vented through the PCV valve to the intake manifold via a rubber hose. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Bob / Mar 29, 2025

Genuine GM Part 12590670, the Right Choice

To ensure reliability, purchase GM part # 12590670 PCV Valve. It is sometimes referred to as Buick Crankcase Breather Hose, Buick PCV Valve Hose. Directly from GM, genuine parts are superb with regards to quality, longevity, and fit. Every single part passed stringent quality testing, so you can be sure that it's safe, durable, and built to perform like your original parts. This part fits specific Buick Lucerne, Terraza models.

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