Make sure this part fits

GM 25877026
Alternator

2007-2014 GM

Customer Questions & Expert Answers (9)
GM 25877026 Alternator
GM 25877026 Alternator
  • Part Description
    Generator Assembly
  • Replaces
    15857608, 15905871
  • 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 GM
    Manufacturer Part Number25877026
    Part DescriptionGenerator Assembly
    Other NamesGenerator, Engine Electrical
    Item Dimensions9.6 x 8.1 x 8.0 inches
    Item Weight19.80 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    Replaces15857608, 15905871
    ManufacturerGeneral Motors
    SKU25877026
    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 Trim Engine
    2007-2014 Cadillac EscaladeBase, Luxury, Platinum, Premium8 Cyl 6.2 L FLEX, 8 Cyl 6.2 L GAS
    2007-2014 Cadillac Escalade ESVBase, Luxury, Platinum, Premium8 Cyl 6.2 L FLEX, 8 Cyl 6.2 L GAS
    2007-2013 Cadillac Escalade EXTBase, Luxury, Premium8 Cyl 6.2 L FLEX, 8 Cyl 6.2 L GAS
    2007-2013 Chevrolet AvalancheBlack Diamond LS, Black Diamond LT, Black Diamond LTZ, LS, LT, LTZ8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
    2007-2013 Chevrolet Silverado 1500Hybrid, LS, LT, LTZ, WT, XFE6 Cyl 4.3 L GAS, 8 Cyl 4.8 L FLEX, 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L FULL HYBRID EV-FLEX (FHEV), 8 Cyl 6.0 L FULL HYBRID EV-GAS (FHEV), 8 Cyl 6.0 L GAS, 8 Cyl 6.2 L FLEX
    2007-2014 Chevrolet Silverado 2500 HDLT, LTZ, WT8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    2007-2014 Chevrolet Silverado 3500 HDLT, LTZ, WT8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    2007-2014 Chevrolet Suburban 1500LS, LT, LTZ8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
    2007-2013 Chevrolet Suburban 2500LS, LT, LTZ8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    2007-2014 Chevrolet TahoeLS, LT, LTZ8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.2 L FLEX, 8 Cyl 6.2 L GAS
    View More
  • Customer Questions & Expert Answers

    Q:
    Can you help me check if this 25877026 is the right part for my car? Posted by ChevyPartsGiant Specialist
    A:
    Please Select Your Vehicle model to see if part number 25877026 is suitable before ordering.
    Posted by ChevyPartsGiant Specialist
    Q:
    What is the next step after repositioning the boot for the 2007 Cadillac Escalade ESV? Posted by Customer
    A:
    Remove the generator battery jumper cable nut and terminal from the generator stud.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Alternator
    Q:
    How do you disconnect the generator from the engine for the 2009 Chevrolet Silverado 1500? Posted by Customer
    A:
    Take off the heater outlet hose clamp bolt at the generator bracket and disconnect the engine wiring harness electrical connector from the generator.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Alternator
    Q:
    What should be removed after disconnecting the negative battery cable for the 2009 Chevrolet Tahoe? Posted by Customer
    A:
    Remove the intake manifold sight shield and the accessory drive belt.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Alternator
    Q:
    How much should the generator bolts be tightened for the 2010 GMC Sierra 1500? Posted by Customer
    A:
    Tighten the generator bolts to 55 Nm (41 lb ft).
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Alternator
    Q:
    What should be done after removing the A/C compressor and condenser hose bracket bolt for the 2008 GMC Sierra 1500? Posted by Customer
    A:
    Remove the heater outlet hose clamp bolt at the generator bracket.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Alternator
    Q:
    What are the final steps to complete the installation for the 2010 GMC Sierra 1500? Posted by Customer
    A:
    Reattach the engine wiring harness clip to the A/C compressor/condenser hose bracket, install the drive belt, and finally, reinstall the air cleaner outlet resonator before reconnecting the negative battery cable.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Alternator
    Q:
    What is the first step to replace the generator for the 2010 GMC Yukon? Posted by Customer
    A:
    Disconnect the negative battery cable.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Alternator
    Q:
    What is the final step in the generator replacement process for the 2007 GMC Sierra 1500? Posted by Customer
    A:
    Reinstall the engine wiring harness clip to the A/C compressor/condenser hose bracket, put the drive belt back on, reinstall the air cleaner outlet resonator, and reconnect the negative battery cable.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Alternator
    If you have any questions about this product, please don't hesitate to ask us. We will be happy to help you!

OEM GM 25877026, Excellent Performance and Perfect Fitment

To ensure reliability, purchase GM part # 25877026 Alternator. It is sometimes referred to as GM Alternator. Choosing OEM parts is the optimal decision for guaranteeing superior quality and perfect performance. These components undergo stringent quality checks and are carefully constructed to comply with GM's factory specifications, ensuring a smooth installation process.

ChevyPartsGiant.com is a leading supplier of genuine GM parts such as GM 25877026 Alternator. Our website boasts an extensive inventory of OEM GM parts, available at highly competitive prices in the market. Should you require any new genuine GM parts, rest assured we will deliver them swiftly and efficiently to your doorstep. Furthermore, all our parts come with the assurance of a manufacturer's warranty. For detailed Chevy parts information, click here.
Choose ChevyPartsGiant for discounted prices, exceptional service and fast delivery