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GM 6L50 stock transmission pan Stock GM 6L50 Pan, Click To View Larger Image

GM 6L50 Deep Transmission Pan
In Development
Part Number 11150

PML GM 6L50 Deep Transmission Pan, computer image Computer generated image of PML deep pan for the GM 6L50 transmission, Click To View Larger Image

PML started design work for a new deep transmission pan for the GM 6L50. A computer generated image is shown.

Our design increases capacity by about 2 quarts. The pan would be about 5 1/2 inches deep, total. (Actual part will NOT be blue.)

Availability and Pricing: We plan to have prototype parts available late this Fall. We will not have any pricing until we have made some parts.


The GM 6L50 transmission is found on models of Cadillac, Camaro and Caprice, and 2015 and newer Canyon and Colorado. The 6L50 pan has 17 bolts and is smaller than the 6L80 or 6L90 pans. The stock pan measures about 17 x 11 x 3 inches.

For 2017 Canyon and Colorado, GM is switching to an 8 speed transmission for some models. See article in The Shop Magazine. Customer have reported to us that the 2017 diesel engine models will still use the 6L50.

Subscribe to our GM 6L50 Transmission Pan Email List

PML has received several requests for a transmission pan for the 6L50. We have heard that the 6L45 is similar to the 6L50. If you are interested in pan for the 6L45/6L50, please sign up for our email and include your vehicle information.

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Benefits of PML Design

  • Extra capacity
  • Finned to increase surface area for heat dissipation
  • Drain and magnetic drain plug
  • Thick walls and gasket flange
  • Heavy duty construction

Fill, Level Check and Drain on Stock Pan

On the stock pan, we've heard that the fill is actually a hole in the main casing, on the passenger side, that is plugged with a rubber plug (no dip stick or fill tube).

Level is checked with by removing a bolt that looks like a drain at the rear of the pan while the transmission is operating at temperature. If no overflow occurs, the transmission needs fluid.

Stock pan does not have a drain plug, so changing the transmission fluid and filter is a messy procedure.