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GM 8L90 Deep
    GM 8L90 Deep
    Purchase GM 8L90 Deep
    • GM 8L90 Deep
      Part Number 11140

    • PML is making a pan to work on many applications. There are at least 6 different OEM transmission pans for the 8L90. Correct transmission fluid levels are critical and level check pipes are not the same. Check your OEM pan part number before ordering. See SPECIFICATIONS section below.

      Prototype parts coming this November.

      This pan may also fit GM 8L45 transmissions.

      Please scroll down. Sign up for our mailing list below so we know you are interested. PML will consider a stock capacity pan if there is demand from the mailing list.

    Volume: 3 to 4 quarts over stock (varies depending on stock pan)

    Dimensions: Click here for dimensions. , Max height is 3.9, height at rear is 2.7 inches

    Number of Bolts: 15 bolts (there are 17 holes, 2 holes locate the gasket)

    Pricing: not yet available

    PML Design and Benefits

    PML designed an extra capacity, heavy duty pan for the GM 8L90 transmission. Our design includes these benefits:

    • Extra capacity
    • Drain hole and magnetic drain plug
    • Choice of level check stand off pipe for accurate fluid levels on many applications
    • No aftermarket dipstick needed to reduce cost
    • Works with stock filter and gasket
    • Finned to aid in heat dissipation
    • Heavy duty sand cast aluminum construction

    Since there several different stock pans and level check stand off pipe heights, PML offers options. Check the OEM transmission pan part number. See SPECIFICATIONS section for more information.

    We welcome pictures, measurements, and suggestions. Please email us pictures of your stock pan on your truck, SUV, or care with any info to:

    Mailing List Signup

    Sign up to let PML know you rae interested in an 8L90 transmission pan. PML is working on a deep pan and a stock capacity pan would follow if enough interest. Specify vehicle and stock capacity in the Vehicle Information field.

    * indicates required

    The GM 8L90 transmission can be found on 2015 and newer Chevrolet, Cadillac, and GMC vehicles.

    • 2015 and newer Cadillac Escalade 6.2L
    • 2015 and newer Chevrolet Silverado 6.2L
    • 2015 and newer GMC Sierra 6.2L
    • 2015 and newer GMC Yukon Denali/Denali XL 6.2L

    • 2016 to 2018 Silverado/Sierra 1500 5.3L
    • 2016 to 2017 Yukon and Yukon XL 6.2L V8

    • 2016 and newer Chevrolet Tahoe 6.2L

    • 2017 and new Colorado and Canyon, gas engines (may be 8L45)
    • 2017 to 2018 Express/Savana 2500, 3500 2.8L I4 Turbo Diesel

    • 2018 Express/Savana 2500, 3500 4.3L V6

    • Some 2015 and newer models of Camaro, Corvette, and Cadillac ATS, CTS, CT4, and CT6 (may lack ground clearance for a deeper transmission pan)

    Always check your vehicle to verify transmission and clearance. Configurations vary. If there is not enough ground clearance for this deep pan, email us at:

    No installations yet. Prototype pans in process.

    Level Check Options

    PML provides a level check stand off pipe when needed for the application. We know of at least 6 different OEM pans for the 8L90 transmission. The level check stand off pipes have various heights above the flange. To provide the correct pipe, PML needs to know the OEM pan part number.

    There are 4 different heights we know of:

    GM 8L90 stock pans standoff pipes 8L90 trans pans stand off pipes  Heights are the distance above the flange. Measurements are approximate.
    Click on image to view larger.

    Here are the heights based on the OEM pans we have seen for these OEM part numbers:

    • 24045035 (24278774 is alternate):   0.0 inches (so no pipe needed)
    • 24278775:   0.0 inches (so no pipe needed)
    • 24274614:   0.24 inches
    • 24274616:   0.9 inches
    • 24298834:   0.9 inches
    • 24274615:   1.05 inches

    The OEM pan part number is on a label on the pan. If you cannot read the label, ask a local parts department for the part number based on your VIN. You can also remove the OEM pan and measure the distance from the flange to the top of the level check stand off pipe.
    GM 8L90 pan label Part number on label on 2020 Silverado 1500 oem transmission pan  Click on image to view larger.

    Maintaining a correct fluid level is important to the operation of the transmission so verify the fluid level check procedure of any aftermarket pan to avoid over or under filling transmission.

    Inside of PML 8L90 Transmission Pan

    Inside of PML GM 8L90 Transmission Pan Inside of PML 8L90 pan, Click To View Larger Image  
    Click on image to view larger.

    Drain, Level Check, and Optional Temperature Sending Unit Machining

    Drain and level check holes are located on the driver/left side of the PML transmission pan. Plugs are provided. For the drain hole, the plug is magnetic.

    Drain hole location on PML GM 8L90 Transmission Pan Drain hole, level check hole, and optional machining locations   plug for drain and level check installed plugs installed  Click on image to view larger.

    The length of the level check stand off pipe varies with the application. PML supplies one based on the OEM pan.

    Optionally, this pan can be drilled and tapped for an aftermarket temperature sending unit. The location is on the passenger side. If you want PML to machine this hole, there is a machining charge and the standard size is for a 1/8 NPT.

    Example 8L90 Transmission and OEM Stock Pans

    There are at least 6 different OEM stock transmission pans. The bolt hole pattern is the same for all of them. The shape of the pans vary and the standoff pipes for the level check are different.

    GM 8L90 Transmission at ATRA 2015 GM 8L90 transmission and stock pan at ATRA Transmission Show 2015, Click To View Larger Image   OEM GM 8L90 transmission pans GM 8L90 Transmission Pans, Click To View Larger Image   2019 Colorado 8L90 Transmission Pan 2019 Colorado 8L90 Transmission Pan, Click To View Larger Image   2020 Silverado 8L90 Transmission Pan 2020 Silverado 8L90 Transmission Pan, Click To View Larger Image
    Pictures of the stock pans are from a 2019 Colorado (GM part number 24274616) and a 2020 Silverado (GM part number 24278875).
    Click on image to view larger images in a new tab or window.

    PML Transmission Pan Compared to Stock

    Always check your vehicle for clearance for a larger transmisssion pan before ordering. If the frame or an exhause pipe run under the stock pan, measure from the transmission housing flange down to see if PML pan will fit.

    This PML pan is deeper than stock pans by about 1.5 inches at the deepest points and at the rear the PML pan is deeper by 3/8 to 1 inch, depending on OEM pan in the vehicle.

    There are many different stock pans. The one we have seen all have a maximum depth of about 2.4 inches.

    At the rear where the PML pan does not have fins, it is 2.7 inches deep. This allows for clearance for exhaust cross over pipes or the frame which run under the rear of the pan on some vehicles.

    PML 8L90 pan compared to stock  Click on image to view larger.

    Measurements are approximate.