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Chevrolet 12654578 Pump

2013-2014 Chevrolet

Customer Questions & Expert Answers (2)
12654578 GM Pump Product Photo 1 of 3
  • Part Description
    Pump, AIR Injection Reactor Pump And Multi - Function Compressor
  • Manufacturer
    General Motors
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  • Q&A
  • Product Specifications

    BrandGenuine Chevrolet
    Manufacturer Part Number12654578
    Part DescriptionPump; Pump, AIR Injection Reactor Pump And Multi - Function Compressor
    Item Dimensions7.6 x 6.8 x 6.4 inches
    Item Weight2.60 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerGeneral Motors
    SKU12654578
    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
    2014 Chevrolet Impala4 Cyl 2.5LLS 4 DOOR NOTCHBACK, LT 4 DOOR NOTCHBACK, LTZ 4 DOOR NOTCHBACK
    2013 Chevrolet Malibu4 Cyl 2.5LLS 4 DOOR NOTCHBACK, LT 4 DOOR NOTCHBACK, LTZ 4 DOOR NOTCHBACK
  • 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 12654578 fits your vehicle.
    Posted and answered by GM Parts Specialist Julian
    Q:
    How to replace Secondary Air Injection Check Valve and Secondary Air Injection Pump on Chevrolet Malibu? Posted by Ade P.
    A:
    Secondary Air Injection is only used on 2014 and earlier 2.5L engines. The secondary air pump and valve are mounted on the rear of the engine block, while the secondary air injection pipe is located at the front of the engine, just above the exhaust manifold. The secondary air injection valve is mounted on the front of the engine on the cylinder head. To begin, raise the vehicle and support it securely on jackstands. Remove the rear transaxle mount. Disconnect the secondary air injection pump feed tube by removing the feed tube bracket bolt and disconnecting the plastic collar at the pump by squeezing and pulling away from it. Next, disconnect the secondary air injection pump inlet hose by squeezing and pulling away from the pump. Remove the pump mounting bolts and disconnect the pump electrical connector before removing the secondary air injection pump. Installation is the reverse of removal. For the check valve, remove the engine cover and disconnect the secondary air injection pump feed tube by disconnecting the plastic collar at the valve. Remove the check valve mounting bolts and disconnect the valve electrical connector. Remove the secondary air injection check valve and discard the gasket, then install a new gasket and tighten the bolts to the specified torque.
    You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Henry / Jun 14, 2025

Genuine GM Part 12654578, the Right Choice

To ensure reliability, purchase GM part # 12654578 Pump. 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 Impala, Malibu models.

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