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GM 6L80, 6L80E, Deep
Transmission Pan

P/N 11025

PML 6L80E transmission pan for Sierra and Silverado, as-cast
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PML GM 6L80, 6L80E tranny pan, powder coated
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PML GM 6L80, 6L80E transmission pan, polished
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As-cast finish
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Black powder coating
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Polished finish
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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)

Description and Applications

This extra capacity heavy duty transmission oil pan fits the GM 6 speed hydramatic 6L80, 6L80E transmissions. PML designed this pan for 2006 and newer Chevrolet and GM trucks and SUVs, such as Silverado, Sierra, and Avalanche.

This pan features:

  • Extra capacity
  • Fins and aluminum construction to dissipate heat from transmission fluid
  • Drain plug for easier maintenance
  • Thick walls to add strength to the transmission housing
  • Thick gasket flange, machined flat, for a leak-free seal

This pan fits the GM 6 speed 6L80, 6L80E transmissions, typically found on these vehicles:

  • Avalanche 1500, 2009 to 2014
  • Escalade, 2007 to 2014, V8 6.2L
  • Hummer H2, 2008 to 2009, V8 6.2L
  • Sierra 1500, 2009 to 2014, V8 5.3L or V8 6.0L or V8 6.2L
  • Sierra Denali, 2007 to 2014, V8 6.2L
  • Silverado 1500, 2009 to 2014, V8 5.3L or V8 6.0L or V8 6.2L
  • Suburban 1500, 2009 to 2014, V8 5.3L or V8 6.0L (includes HD)
  • Tahoe, 2009 to 2014, V8 5.3L or V8 6.0L
  • Yukon, 2009 to 2014, V8 5.3L
  • Yukon Denali, 2007 to 2014, V8 6.2L
  • Yukon XL 1500, 2009 to 2014 V8 5.3L or V8 6.0L

2015 vehicles: This pan may also work on 2015 vehicles. GM introduced an 8 speed transmission in 2015 so check your configuration. We think the 6.2 V8 engine comes with the 8 speed transmission. If you have it, please let us know:

Trucks and SUVs have a variety of configurations. Look at yours before you order to verify your transmission and clearance. Some vehicles have the 4 speed 4L60 transmission and use PML part number 9427.

If you have skid plates or require a lower profile pan, check our stock capacity pan for the 6L80, 6L80E.

Camaro, Corvette, G8 and some Cadillacs also have the 6L80, 6L80E transmission. Please see PML's low profile pan as cars generally do not have the clearance for a larger, deep pan. It is PML part number 11087.

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.

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.

Filter and Gasket Information

PML 6L80 transmission pan, filter supports
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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".

GM 6L80E transmission, filter, and reuseable factory gasket
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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

Temperature sending unit machining for PML pan for GM 6L80E transmission
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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

PML Transmission Pan Part Number 11025 height compared to stock  PML Transmission Pan Part Numbers 11025, compared to stock
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These images show this PML transmission pan compared to the stock pan.

This image compares the depth of both PML 6L80 transmission pans and the stock pan. Click on image to view larger in a new tab or window.
PML 6L80 transmission pan depth comparison


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.
GMC 1500 Denali with a PML GM 6l80 transmission pan, deep    PML GM 6l80 transmission pan, deep, installation    PML GM 6l80 transmission pan, deep, back view
See more pictures on our facebook page. You do not have to join facebook to view.

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:

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."
Chevy Avalanche, before PML 6L80E transmission pan    Chevy Avalanche, with PML 6L80E transmission pan    Chevy Avalanche, with PML 6L80E transmission pan, exhaust crossover pipe

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.
Cadillac Escalade, with PML 6L80E transmission pan    Cadillac Escalade, PML 6L80E transmission pan, hard to access bolts    Cadillac Escalade, with PML 6L80E transmission pan installed

PML Transmission Pan on 2013 Suburban

Frank in New York installed this PML transmission pan on his 2013 Suburban. He emailed us pictures and let us know the pan worked great. Click on these images to view larger in a new tab or window:
2013 Suburban, transmission, pan off   2013 Suburban with PML 6L80E transmission pan   2013 Suburban with PML 6L80E transmission pan, side view   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 GM 6l80 transmission pan, deep, on 2008 Escalade    PML GM 6l80 transmission pan, deep, 2008 Escalade, passenger side view    PML GM 6l80 transmission pan, deep, 2008 Escalade, driver side view
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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 hsi 2010 Silverado. Our thanks to Georgio for choosing PML covers and pans.

PML GM 6l80 transmission pan, deep, on a 2014 Tahoe    2014 Tahoe with PML differential cover and transmission pan
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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

  • Increased oil capacity for cooler temperatures
  • Sand-cast aluminum with raised fins
  • 3/16-inch thick wall construction to add strength to the transmission case
  • 3/8-inch thick gasket flange will not bend when bolts are tightened
  • Machined gasket surface for a secure seal
  • Boss cast into pan can be machined for a temperature sensor
  • Drain hole and magnetic drain plug for easier, less messy maintenance

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.

Find out why you should buy a PML transmission pan.

Learn more about finishes and construction of PML parts.

For a larger picture, please click on one of the above images. A separate window or tab will open showing a bigger picture. (The larger pictures take a minute to display.)