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Chevrolet 7842076 Pump Assembly, Air Injector

1983-1986 Chevrolet

Customer Questions & Expert Answers (3)
GM 7842076 Pump Assembly, Air Injector
  • Part Description
    Pump, Air Injection Reactor Pump And Multi, Function Air Compressor
  • Manufacturer
    General Motors
  • Manufacturer's Notes
    This part is discontinued.
Make sure this part fits
  • Related Parts
  • Product Specifications
  • Vehicle Fitment
  • Customer Questions & Expert Answers
  • Product Specifications

    BrandGenuine Chevrolet
    Manufacturer Part Number7842076
    Part DescriptionPump, Air Injection Reactor Pump And Multi, Function Air Compressor
    Other NamesA.I.R. Pump
    Item Dimensions6.8 x 6.4 x 7.4 inches
    Item Weight5.80 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerGeneral Motors
    SKU7842076
    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
    1983-1986 Chevrolet Celebrity6 Cyl 2.8L2 DOOR, 4 DOOR, STATION WAGON
    1983-1985 Chevrolet Citation6 Cyl 2.8L2 DOOR, 2 DOOR NOTCHBACK, 2 DOOR PLAINBACK HATCHBACK, 4 DOOR
  • Customer Questions & Expert Answers

    Q:
    Will this part number fit my car? Posted by GMPartsGiant Specialist
    A:
    You can Select Your Vehicle to check if 7842076 fits your vehicle.
    Posted by GMPartsGiant Specialist
    Q:
    How to Remove,Install and Service the Secondary Air Injection Check Valve and Secondary Air Injection Pump on Buick Century? Posted by Customer
    A:
    The Air Management System (AMS) introduces extra oxygen after exhaust gasses through the combustion chamber are ejected and works similarly to the AIR system. Located upstream the exhaust port is an engine-driven air pump sending air into the exhaust ports or manifolds or catalyst; the air pump works always, temporarily by-passing air through the Air Management Valve during deceleration and high speed; there is a check valve preventing back flow of exhaust. This system cuts HC and CO emission by opening the exhaust ports to the air intake during cold engine operation and help the catalytic converter to heat up quickly. During the warm up the air is supplied to the beds of the catalytic converter in order to reduce the level of HC and CO and, at the same time, the oxygen level remains low in the first bed for accurate reduction of NOx. The ECM controls air intake to include air to the air cleaner or atmosphere depending on the engine temperature and operating condition to avoid back firing during deceleration. Normal inspections of the check valves and hoses to look for formation of leaks, cracks or deterioration must be made. For removal and installation of the air pump, one has to loosen the V-belt adjuster bolt-The belt has to be removed-Unscrews the mounting bolts, and for installation, do the reverse while ensuring the belt tension is correct. The check valve consists of removing the check valve line from the pump assembly then removing the check valve from the air injection pipe, the reverse of how it is fitted. For the Air management valve, one has to disconnect the negative cable, take off the air cleaner, tag and disconnect the hoses and air management valve bolts and reassemble the air management valve in the reverse procedure.
    Posted by GMPartsGiant Specialist
    Q:
    What are the key components of the air injection system for the 1986 Oldsmobile Cutlass? Posted by Customer
    A:
    Components of this system on GM engines include the air injection pump, an air diverter valve, manifold and injection tubes, and check valves for each hose leading from the pump.
    Posted by GMPartsGiant Specialist
    See expert answers on similar Secondary Air Injection Pump
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Genuine GM Part 7842076, the Right Choice

To ensure reliability, purchase GM part # 7842076 Pump Assembly, Air Injector. It is sometimes referred to as Chevrolet Secondary Air Injection Pump. 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 Chevrolet Celebrity, Citation models.

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