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GMC 25746427 Flasher

2003-2007 GMC Savana

Customer Questions & Expert Answers (5)
25746427 GM Flasher Product Photo 1 of 6
  • Part Description
    Hazard Warning Turn Signal Flasher
  • Manufacturer
    General Motors
Make sure this part fits
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  • Related Parts
  • Specifications
  • Fitment
  • Q&A
  • Product Specifications

    BrandGenuine GMC
    Manufacturer Part Number25746427
    Part DescriptionFlasher; Hazard Warning Turn Signal Flasher
    Item Dimensions3.1 x 3.1 x 3.1 inches
    Item Weight0.40 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerGeneral Motors
    SKU25746427
    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
    2003-2007 GMC Savana6 Cyl 4.3L, 8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L, 8 Cyl 6.6L Diesel1 TON CARGO SAVANA, 1 TON COMMERCIAL/RV CUTAWAY, 1 TON PASSENGER, 1/2 TON CARGO SAVANA, 1/2 TON PASSENGER SAVANA, 3/4 TON CARGO SAVANA, 3/4 TON PASSENGER SAVANA
  • Customer Questions & Expert Answers

    Q:
    I would like to confirm if this is the correct part number for my vehicle. Please advise. Thank you.
    A:
    You can Select Your Vehicle to check if 25746427 fits your vehicle.
    Posted and answered by GM Parts Specialist Henry
    Q:
    What do the resistance readings indicate when testing a Relay for the 2006 Chevrolet Express? Posted by Benett D.
    A:
    If a resistor is present, resistance should be the same value in either direction. If a diode is present, resistance should be higher in the forward polarity direction. Infinite resistance in both directions indicates that the relay should be replaced. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Jeremy / Feb 09, 2026
    Q:
    How does the BCM control the Turn Signal Flasher function for the 2006 Chevrolet Express? Posted by Betty J.
    A:
    The BCM controls the turn signal function by pulsing the voltage to the right or left turn signal lights after sensing the position of the turn signal multi-function switch. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Bob / Dec 11, 2025
    Q:
    Will this flasher work with LED bulbs? Posted by Erini P.
    A:
    If the vehicle comes equipped with LED's it will be compatible
    Answered by GM Parts Specialist Matt / Jan 25, 2020
    Q:
    Where is this flasher located in a 2003 Chevrolet Express? Posted by Alvin L.
    A:
    In a 2003 Chevrolet Express this flasher is located under the steering wheel to the right top corner
    Answered by GM Parts Specialist Matt / Jan 24, 2020

Genuine GM Part 25746427, the Right Choice

To ensure reliability, purchase GM part # 25746427 Flasher. It is sometimes referred to as GMC Relay, GMC Turn Signal Flasher. 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 GMC Savana models.

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