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Oldsmobile 12567733 Check Valve

1999-2001 Oldsmobile Bravada

Customer Questions & Expert Answers (2)
12567733 GM Check Valve Product Photo 1 of 5
  • Part Description
    Valve, Emission Control System
  • Replaces
    12558992
  • Manufacturer
    General Motors
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  • Q&A
  • Product Specifications

    BrandGenuine Oldsmobile
    Manufacturer Part Number12567733
    Part DescriptionCheck Valve; Valve, Emission Control System
    Item Dimensions3.5 x 2.7 x 2.5 inches
    Item Weight0.50 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    Replaces12558992
    ManufacturerGeneral Motors
    SKU12567733
    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
    1999-2001 Oldsmobile Bravada6 Cyl 4.3LBRAVADA
  • 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 12567733 fits your vehicle.
    Posted and answered by GM Parts Specialist Julian
    Q:
    What is the purpose and components of the Secondary Air Injection (AIR) system,Secondary Air Injection Check Valve and Secondary Air Injection Pump on Chevrolet Express? Posted by Garlyn S.
    A:
    Certain engines, such as the 4.3L V6, 5.7L V8, and 7.4L V8 engines, are equipped with a Secondary Air Injection (AIR) system. The purpose of this system is to reduce the levels of unburned hydrocarbons (HC) and carbon monoxide (CO) in the exhaust gases by introducing fresh air into hot exhaust gases flowing through the exhaust manifolds. The AIR pump, vacuum control solenoid, check valves, shut-off valve, and hoses and pipes are some of its components. The AIR pump sucks filtered outside air and pushes it into the exhaust manifolds under the control of the PCM. The AIR shut-off valve is controlled by the vacuum control solenoid to open up and allow air from the pump to pass through to get to check valves. These check valves block backflow of exhaust gases inside the AIR system. Some signals that activate it include coolant temperature or engine deceleration when determined by PCM. If certain conditions are met, PCM can deactivate its electric clutch for AIR pump. If simple checks do not solve a problem, then checked or replaced should be done only at a qualified repair shop's.
    You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Xavier / Apr 26, 2024

Genuine GM Part 12567733, the Right Choice

To ensure reliability, purchase GM part # 12567733 Check Valve. It is sometimes referred to as Oldsmobile Air Inject Check Valve, Oldsmobile Diverter Valve, Oldsmobile Secondary Air Injection Check Valve. 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 Oldsmobile Bravada models.

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