Engine Fuel Filter - GM (12642623)

OEM GM Engine Fuel Filter For

Engine Fuel Filter - GM (12642623)

OEM GM Engine Fuel Filter For

  • MSRP: $163.47
  • Discount: $55.38 (33.9% off)
  • Sale Price: $108.09
Manufacturer Warranty Minimum of 12 Months
Guaranteed Fitment Always the correct parts
Shop with Confidence Your information is safe
In-House Experts We know our products


  • Genuine:
    Buick, GMC, Cadillac, Hummer, Saturn, Oldsmobile, Pontiac, Chevrolet Parts
  • SKU: 12642623
  • Other Names: Filter
  • Description:

    When your DuraMax 6.6L fuel system just isn’t acting right, it may be time to change your fuel filter or fuel filter assembly (sometimes also called fuel filter housing). Many people don’t realize that the fuel filter on their truck is a serviceable part that needs to be changed at specific intervals.  Check your owner’s manual to see if it’s time for a new one. Also, fuel filters can become clogged prematurely if the quality of fuel used in your vehicle is poor, or if you’ve accidentally used watered down fuel. Additionally, as the filter assembly ages, leaks can develop that let air into the fuel system. Signs that you may need a new fuel filter assembly include:

    • Hard starting
    • Stalling right after starting
    • Your vehicle loses power at higher throttle
    • Fuel system may require priming after sitting on a slope

    These could also be signs of issues in other areas of the fuel system, but the fuel filter assembly is the first item to make sure is good. GM part 12642623 is a direct replacement. Get your replacement fuel filter 12642623 at a low price now from GMPartsCenter.net.

    NOTE: This is for LBZ, LLY, and LMM options only. Not for LB7 or LML option. LB7 uses 97780061 for the assembly, or 12664429 for the cartridge. LML uses 12665359 and 12664429

  • Condition: New
  • Replaces: 12633244, 12639448
  • Sold In Quantity: 1

Product Reviews

GM Parts Center

GMPartsCenter.net is one of the largest online retailers of genuine GM parts in the United States. We offer wholesale pricing, fast shipping, and no-hassle returns.

  • We offer genuine OEM parts and accessories for GM brands such as Chevrolet, GMC, Buick, Cadillac, and more
  • When you provide your vehicle VIN, we can guarantee an exact fit
  • We have a huge warehouse of inventory, so we can ship most orders same day

We take customer satisfaction very seriously - if you have a problem give us a call.

Read more about GMPartsCenter.net


Please allow 24-48 hours for us to process your order. Orders are not processed on weekends or major Holidays.

We HIGHLY recommend you include your vehicle's VIN at checkout. We provide free parts fitment verification (we double check you) when you include your vehicles VIN at checkout.

This online catalog is for reference only and does not guarantee availability of parts. 

The illustrations contained in this online parts catalog are simple renditions of the part and its location and are for reference only. Factors such as trim, color, options, or included items may not be depicted in the illustrations accurately. 

RH and/or RIGHT always means Passenger side of Vehicle. LH and/or LEFT is the Driver side.