GM 6L80, 6L80E, Deep Transmission Pan
PML Part Number 11025
|Black powder coating
Volume: 2 quarts over stock
Dimensions: Click here for dimensions in a new tab or window. The 6L90 pan is similar in shape but is longer at 18 1/2 inches.
Number of Bolts: 18 (there are 20 holes, 2 holes locate the gasket and 18 holes for bolts to hold the pan to the transmission case)
This extra capacity heavy duty transmission oil pan fits GM 6 speed hydramatic 6L80, 6L80E transmissions. PML designed this pan for 2007 and newer Chevrolet and GM trucks and SUVs, such as these vehicles:
Trucks and SUVs have a variety of configurations. Look at yours before you order to verify your transmission and clearance.
If you have skid plates or require a lower profile pan, check our stock capacity pan for the 6L80, 6L80E.
Note to 2015 and newer vehicle owners: GM introduced an 8 speed transmission in 2015 so check your configuration.
Some vehicles have the 4 speed 4L60 transmission and can use PML part number 9427.
Camaro, Corvette, G8, Cadillac cars with the 6L80, 6L80E transmission: please see PML's stock capacity pan, which requires less clearance than this extra capacity pan. It is PML part number 11087.
This pan can be modified for pan filling. Please call or email if you want this deep pan and need to fill through the pan.
Loosening the exhaust pipe for installation: You might need to lower the exhaust cross over pipe to install this pan or do a service with the stock pan. Some customers recommend loosening the exhaust flanges at the manifolds with a crow's foot socket wrench. See Installations section below.
Filter and Gasket Information
This image shows the inside of the PML pan.
PML transmission pans work with stock filters, easily available from your favorite auto parts store.
Because the pan is deeper than stock, the pan has filter supports cast in. The transmission fluid is at the same level with a PML pan as with the stock pan.
The stock GM filter is "GM Part No. 24236517" and the AC Delco box has part number "24236933".
This image shows a 6L80E transmission, stock filter and stock reusable gasket.
This transmission pan works with stock gaskets.
PML designed this pan to accommodate the reusable factory gasket. Please make sure the gasket is clean and free of any holes or nicks to avoid leaks.
Machining for Temperature Sensors
Three bosses are provided that can be machined for use with aftermarket sensors and gages. If you would like PML to drill and tap a boss, the machining charge is $40 . The bosses can accommodate 1/8 NPT to 1/2 NPT. Let us know which location you prefer and what size to machine. The bosses can also be used as alternate drain plug locations.
Drain Plug and Bolts
This pan includes a magnetic drain plug and mounting bolts.
The drain is on the driver's side.
PML Transmission Pan Compared to Stock
These images show this PML transmission pan compared to the stock pan.
PML Transmission Pan on 2010 GMC 1500 Denali at Leon's Transmissions
Leon's Transmissions in Garden Grove, 714-534-3300, installed a black powder coated deep 6L80 pan on a 2010 GMC 1500 Denali. To get the pan installed, they loosened and dropped the exhaust. Leon's also installed a PML differential cover on the truck.
RV Magazine Installs PML Transmission Pan and Temperatures Drop
RV Magazine January/February 2014 Tech & How-To section goes through the installation and testing of a deep PML 6L80 transmission pan on a 2012 Chevrolet Silverado. Here's a quote from the end of the article:
"Our testing route took us on a 26-mile loop, up and down 6-percent grades the whole way. On the final hill where we noted our temperatures it takes about 10 minutes to reach the summit at 55mph. Before the PML pan, our transmission temperature measured 159 degrees at the base of the hill and 210 degrees at the top. Once over the top and coasting down the backside, the temperature continued to rise, hitting 218 degrees before starting to cool down five or six minutes later. With the PML pan, our temperature was 160 degrees at the base and 192 degrees at the summit. That’s a pretty decent difference, but what was really fun was how quickly it cooled back down. Almost immediately after cresting the hill, the temp began to drop, more than 5 degrees in about a minute. Impressive."
Blattenberg, Adam. "Transmission Stamina." RV Magazine January/February 2014: 52-4. Print. Link to full article on line: http://www.rvmagonline.com/tech/1402-pml-transmission-2012-chevrolet-sliverado-1500-tech/.
PML Transmission Pan on 2011 Avalanche
Steve installed this pan on his 2011 Chevrolet Avalanche LTZ 4WD 5.3 liter with a 6L80E transmission. The first image shows the stock pan and the exhaust crossover pipe. The center and right images show the PML pan installed. Steve loosened both exhaust flanges at the manifolds to allow the exhaust crossover pipe to drop down about a half an inch. This provided room for removing the stock pan and installing the PML pan. He captured 5.3 quarts of fluid and refilled with 8 quarts. Steve said "The fit and finish of your pans are incredible. I followed the instructions provided and reused the silicone gasket from the stock pan."
PML Transmission Pan on 2007 Cadillac Escalade
Dave installed our 6L80 transmission pan on his 2007 Cadillac Escalade EXT AWD, 6.2 liter engine. He got the pan in the cast finish then painted it engine semi gloss black and sanded off the high points. For the installation, the exhaust had to be off the manifolds on both sides to get clearance for the pan. For the stock pan, only the right side needed to be off. He used the stock reusable gasket. He saw a temperature drop of 10F, no towing, no other modifications.
PML Transmission Pan on 2013 Suburban
PML Transmission Pan on a 2008 Cadillac Escalade 6.2L
A hot climate and harsh driving conditions led Ahmad to look for a pan to cool the transmission fluid in his 2008 Escalade 6.2. Although the polish finish pan is usually only for show trucks, it does look great on this daily driver. Our thanks to Ahmad for choosing a PML pan and for the pictures.
PML Transmission Pan on a 2014 Chevy Tahoe 5.3L
Georgio installed this PML transmission pan on his 2014 Tahoe. He also installed a PML rear differential cover. He plans to do the same for his 2010 Silverado. Our thanks to Georgio for choosing PML covers and pans.
PML Transmission Pan on a 2014 Silverado 1500 V6
Ian Macdonald at Dark Side Oils installed this PML pan on his 2014 Silverado 1500 with the V6 engine. He had these comments about the installation and temperature readings:
" Just wanted you to know that I installed my new 11025 trans pan on my 2014 Silverado 2wd with 4.3 V6 and there are no interference issues whatsoever. There is plenty of clearance between the tranny and the exhaust crossover making this install a breeze. BTW as other reviews have stated this pan is awesome, well made, very solid and looks great!! "
" I was able to do a before and after driving comparison as well. As it happened I had to drive 180kms one way and had the cruise set at 115 kph (approx. 70 mph) with outside temp (as displayed on my DIC) of 9 deg C for the whole trip. Terrain was southern Ontario were things are fairly flat. Trans fluid temp was 88 deg C and steady for the last hour of the trip. I then changed the pan and refilled with 7.6 qts of AMSOIL Trans Fluid. My return trip the next day on the same route and distance at the same 115 kph set on the cruise control and ambient temp was now 12 deg C. The tranny ran at a steady 85 deg C for the last hour of this return trip. In both cases there were no stops. Considering the ambient temp was 3 deg warmer and the fluid was 3 deg cooler the net differential was 6 deg C (10.8 deg F). Not bad at all I’d say!!! "
About the Similar GM 6L50 Transmission
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. See our GM 6L50 Transmission Pan Page.
PML Transmission Pan Features
All PML transmission pans ship with new mounting bolts and a magnetic drain plug.
If you would like PML to machine your pan for a temperature sending unit, there is an additional charge of $40.
Learn more about finishes and construction of PML parts.
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