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GM 12594512 Sequential Multiport Fuel Injector Assembly

2007-2009 GM

Customer Questions & Expert Answers (9)
GM 12594512 Sequential Multiport Fuel Injector Assembly
  • Part Description
    Injector Assembly, Sequential Multiport Fuel ; Injector, Fuel Injection
  • Manufacturer
    General Motors
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  • Related Parts
  • Product Specifications
  • Vehicle Fitment
  • Customer Questions & Expert Answers
  • Product Specifications

    BrandGenuine GM
    Manufacturer Part Number12594512
    Part DescriptionInjector Assembly, Sequential Multiport Fuel ; Injector, Fuel Injection
    Other NamesInjector
    Item Dimensions5.7 x 3.2 x 1.7 inches
    Item Weight0.40 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    Require Quantity8
    ManufacturerGeneral Motors
    SKU12594512
    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
    2007-2009 Chevrolet Avalanche8 Cyl 5.3L Flex1/2 TON
    2008-2009 Chevrolet Express8 Cyl 5.3L1/2 TON CARGO EXPRESS, 1/2 TON PASSENGER EXPRESS
    2007-2009 Chevrolet Silverado8 Cyl 5.3L FlexCREW CAB 1/2 TON, EXTENDED CAB 5'8" BOX 1/2 TON, EXTENDED CAB 6'6" BOX 1/2 TON, EXTENDED CAB 8' BOX 1/2 TON, REGULAR CAB 6'6" BOX 1/2 TON, REGULAR CAB 8' BOX 1/2 TON
    2007-2009 Chevrolet Suburban8 Cyl 5.3L Flex1/2 TON
    2007-2009 Chevrolet Tahoe8 Cyl 5.3L Flex4 DOOR 1/2 TON
    2008-2009 GMC Savana8 Cyl 5.3L1/2 TON CARGO EXPRESS, 1/2 TON CARGO SAVANA, 1/2 TON PASSENGER EXPRESS, 1/2 TON PASSENGER SAVANA
    2007-2009 GMC Sierra8 Cyl 5.3L FlexCREW CAB 1/2 TON, EXTENDED CAB 5'8" BOX 1/2 TON, EXTENDED CAB 6'6" BOX 1/2 TON, EXTENDED CAB 8' BOX 1/2 TON, REGULAR CAB 6'6" BOX 1/2 TON, REGULAR CAB 8' BOX 1/2 TON
    2007-2009 GMC Yukon8 Cyl 5.3L Flex1/2 TON, YUKON XL/DENALI XL/ESCALADE ESV, YUKON/DENALI/ESCALADE
  • Customer Questions & Expert Answers

    Q:
    I am wonder if this is complete and correct part for my vehicle. Posted by GMPartsGiant Specialist
    A:
    You can Select Your Vehicle to check if 12594512 fits your vehicle.
    Posted by GMPartsGiant Specialist
    Q:
    How to remove fuel injectors and Fuel Rail on V8 engine on Chevrolet Avalanche? Posted by Customer
    A:
    First, remove the intake manifold cover to get it off the fuel injectors on a vehicle. It is also necessary to relieve the fuel system pressure and disconnect the negative battery terminal cable. After that, air intake and manifold cover bracket bolts are removed as well as the nut holding engine wiring harness bracket to intake manifold. Electrical leads in engine wiring harness traced and disconnected from various components including alternator, EVAP purge solenoid, ignition coils, MAP sensor and throttle body. Also, electrical connectors from fuel injectors were disconnected; engine wiring harness clips were detached too. The PCV hose is disconnected from the intake manifold while the fuel line is disconnected from the fuel rail. The EVAP canister purge solenoid is removed from the intake manifold while the fuel rail mounting bolts are removed. Thereafter, injectors are disengaged from engine as an assembly through lifting them out of top of intake manifold by each individual injector retainer with its old o-ring removed.New o-rings should be installed after which they are lubricated with clean engine oil before reassembling both injectors and fuel rail. This process however must be done in reverse starting by tightening up of fuel rail mounting bolts and then pressurizing of fuel system so as to ensure there are no leaks occurring during installation.
    Posted by GMPartsGiant Specialist
    Q:
    How to remove fuel injectors and Fuel Rail on V8 engine on Chevrolet Tahoe? Posted by Customer
    A:
    First, remove the intake manifold cover to get it off the fuel injectors on a vehicle. It is also necessary to relieve the fuel system pressure and disconnect the negative battery terminal cable. After that, air intake and manifold cover bracket bolts are removed as well as the nut holding engine wiring harness bracket to intake manifold. Electrical leads in engine wiring harness traced and disconnected from various components including alternator, EVAP purge solenoid, ignition coils, MAP sensor and throttle body. Also, electrical connectors from fuel injectors were disconnected; engine wiring harness clips were detached too. The PCV hose is disconnected from the intake manifold while the fuel line is disconnected from the fuel rail. The EVAP canister purge solenoid is removed from the intake manifold while the fuel rail mounting bolts are removed. Thereafter, injectors are disengaged from engine as an assembly through lifting them out of top of intake manifold by each individual injector retainer with its old o-ring removed.New o-rings should be installed after which they are lubricated with clean engine oil before reassembling both injectors and fuel rail. This process however must be done in reverse starting by tightening up of fuel rail mounting bolts and then pressurizing of fuel system so as to ensure there are no leaks occurring during installation.
    Posted by GMPartsGiant Specialist
    Q:
    What are the initial steps to remove and install fuel injectors and fuel rails of the 2008 Chevrolet Express? Posted by Customer
    A:
    The initial steps include relieving the fuel system pressure and disconnecting the negative battery terminal.
    Posted by GMPartsGiant Specialist
    See expert answers on similar Fuel Injector
    Q:
    What needs to be done before reassembling the injectors and fuel rail of the 2007 GMC Sierra? Posted by Customer
    A:
    Before reassembling the injectors and fuel rail, each injector retainer and old o-ring needs to be removed. New o-rings should be installed and lubricated with clean engine oil.
    Posted by GMPartsGiant Specialist
    See expert answers on similar Fuel Injector
    Q:
    What needs to be done after removing the intake manifold cover for the 2008 Chevrolet Silverado? Posted by Customer
    A:
    After removing the intake manifold cover, the fuel system pressure needs to be relieved and the cable from the negative battery terminal needs to be disconnected.
    Posted by GMPartsGiant Specialist
    See expert answers on similar Fuel Injector
    Q:
    What should be done before removing the upper intake manifold for the 2007 GMC Yukon? Posted by Customer
    A:
    Disconnect the negative battery cable and relieve fuel system pressure.
    Posted by GMPartsGiant Specialist
    See expert answers on similar Fuel Injector
    Q:
    What should be done before removing the upper intake manifold for the 2009 Chevrolet Tahoe? Posted by Customer
    A:
    Disconnect the negative battery cable and relieve fuel system pressure.
    Posted by GMPartsGiant Specialist
    See expert answers on similar Fuel Injector
    Q:
    What needs to be done after removing the intake manifold cover for the 2007 Chevrolet Suburban? Posted by Customer
    A:
    After removing the intake manifold cover, the fuel system pressure needs to be relieved and the cable from the negative battery terminal needs to be disconnected.
    Posted by GMPartsGiant Specialist
    See expert answers on similar Fuel Injector
    If you have any questions about this product, please don't hesitate to ask us. We will be happy to help you!

Genuine GM Part 12594512, the Right Choice

To ensure reliability, purchase GM part # 12594512 Sequential Multiport Fuel Injector Assembly. It is sometimes referred to as GM Fuel Injector. 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 Express, Silverado, Tahoe models. It fits GMC Savana, Sierra, Yukon.

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