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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
  • 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
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    Warning: California's Proposition 65
  • 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 Alternator 25877026 Designed for Proper Fit and Performance

Original OEM GM parts deliver superior quality and meet all performance standards needed for optimal automotive operation. The authentic part identified by 25877026 Alternator is available in the market under the name GM Alternator. This genuine product has a full warranty coverage from the manufacturer available at all authorized GM dealers throughout the United States. This part 25877026 Alternator fits certain Chevrolet Tahoe, Avalanche, Silverado 1500 models, as well as GMC Sierra 1500, Yukon, Sierra 2500 HD. Additionally, it is compatible with Cadillac Escalade, Escalade ESV, Escalade EXT and Hummer H2 models.
The original GM component designated by manufacturer part number 25877026 maintains top performance when functioning as the Generator Assembly unit. The component 25877026 is constructed from durable material and its dimensions span 9.6 x 8.1 x 8.0 inches while weighing 19.80 Pounds. The Direct Replacement component is ready in New condition to ensure full compatibility with your vehicle system. This component receives the designation of Generator, Engine Electrical. The part 25877026 has available replacement options 15857608, 15905871. GM manufacturer provides a warranty that ensures reliable operation of this product. The Shipping Policy and Return Policy pages outline complete details regarding shipping procedures and return processes.
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