Included with pan: one custom gasket, new mounting bolts, magnetic drain plug
Volume: 1 1/2 to 2 quarts over stock
Dimensions: About 3.5 inches tall, 1.8 taller than stock, click here for dimensions
Number of Bolts: 6
- Cooling — extra capacity, fins, and aluminum construction for reported temperature drops of 10 to 30 degrees
- Clearance — step to clear frame
- Drain — on the side for safety, pan includes magnetic drain plug and mounting bolts
- Secure seal — machined flat flange, no more retaining clips and formed gasket
- Strength — high quality, thick walls
The Chrysler/Mercedes NAG1, 722.6 family of transmission includes W5A580, WA580, W5A380, and W5J400.
Read about PML NAG1, 722.6 Transmission Pan Design (a new window or tab will open with a PDF file).
Many Chrysler, Dodge, Jeep, and Mercedes vehicles have the NAG1, 722.6 (W5A580, WA580, W5A380, W5J400) transmission so PML has designed three different pans for the transmission.
Some vehicles which typically can use this pan are:
- Jeep Grand Cherokee (SRT8, Laredo, Limited, Overland), 2006 to 2013
- Dodge Magnum, Charger, Challenger, 2006 to 2013
- Chrysler 300, 300C with 5 speed transmissions, 2005 to 2012
- Mercedes (several models/years, sound plate may need altering, see Installations below)
- Sprinter Vans (some models, usually 2002 to 2006, check for frame crossmembers)
Always check your vehicle to verify transmission and clearance as configurations vary.
See Installations for examples.
Need help figuring out which pan you need?
Check out this video or see Guidelines, below.
To determine which PML NAG1, 722.6 pan will work best, check how much space is available for a larger transmission pan. Look at the space from the stock transmission pan to:
- Ground (the transmission pan should not be lower than the frame)
- Drive Shaft
- Skid or sound dampening plates
- Other vehicle parts
Little or no space, like Jeep Wrangler and some cars:
NAG1, 722.6 Stock Capacity Transmission Pan
Some space, like Grand Cherokee, some cars (Magnum, Charger), some Sprinter:
NAG1, 722.6 2 Quarts Over Transmission Pan (this pan)
Lots of ground clearance, like Sprinter:
NAG1, 722.6 2.5 Quarts Over Transmission Pan
These are GENERAL guidelines. PML cannot tell which pan will work since vehicle configurations vary.
Our thanks to all those who have emailed us pictures of their installations:
- 2005 Dodge Sprinter 2500
- 2005 Mercedes Sprinter 3500
- 2005 Mercedes AMG Class C55
- 2006 Dodge Charger SRT8
- 2006 Dodge Magnum SRT8
- 2006 Jeep Grand Cherokee Laredo
- 2006 Mercedes S65
- 2007 Jeep Grand Cherokee 3.0 Diesel
- 2010 Jeep Grand Cherokee SRT8
- 2013 Dodge Challenger
- 2013 Jeep Grand Cherokee SRT8
- 2015 Jeep Wrangler, Aftermarket Exhaust and Frame
Sprinter vans with frame cross members under the front and rear of the stock pan need to use PML Part Number 11124. This Sprinter could use any of the PML 722.6/NAG1 transmission pans. There is plenty of clearance to the frame and to the ground.
Jon, a mechnical engineer and designer (see Whitledge Designs), noticed his van, "The Magic Bus", struggled over long grades and fluid temperatures would rise.
He performed a number of aerodynamic and thermodynamic calculations, and estimated his Sprinter required an additional 49 horsepower to climb the Cajon Pass (California) at 60 mph. This translates to the dissipation of about 125,000 BTU/hr of additional heat (note: one horsepower equates to 2544 BTU/hr). After weeks of research and fabrication, he developed auxiliary cooling systems for the radiator and transmission and included this PML pan as part of his plan.
Damian installed this PML deep 722.6/NAG1 transmission pan on a 2005 Mercedes AMG Class C55. The pan installed easily, fit great and did not reduce overall ground clearance. The PML pan does not allow for the undercarriage sound dampening plate to mount as designed so he cut out the bottom of the plate below the pan. This also aids with air flow and cooling. Although the PML pan is too deep to not hit the plate, the exhaust hangs down further than the PML pan. Our thanks to Damian for the pictures and comments.
George installed PML's transmission pan on his 2006 Charger. He added 1.5 quarts more fluid then went to the Dodge dealer to get the fluid level checked. Before removing the stock pan, he supported the transmission then removed the transmission support brace. This gave him access to all the bolts.
Stefan installed the PML deep pan for NAG1/722.6 transmission on his 2006 Dodge Magnum SRT 8. Here is a link to more pictures posted on Facebook: PML Pan on Dodge Magnum. He had these notes on the installation:
- Removed the cross member for access to the two rear bolts
- Used Chrysler AT RTV to seal the pan to the transmission
- Cross member fit with the PML pan, no clearance issues
- Stock fluid was 4.8 quarts, added 1.7 more quarts with PML pan for a total of 6.5 quarts
- Used chart to get accurate read for fluid level at a temperature (chart found on-line or in Hanes manual) while car in reverse or drive
- A special dipstick is needed (can be ordered at dealership, local parts store or Amazon)
- Drain plug in the rear works well
Our thanks to Stefan for his comments and pictures.
HGM Transmission Controllers installed PML's 722.6/NAG1 transmission pan on a 2006 Jeep Grand Cherokee Laredo V6 3.7L. The installation was a simple bolt-on process. Even thought this is a deep pan, the exhaust and frame are still much closer to the ground than the pan so there are not any clearance issues. Our thanks to HGM for installing our pan.
To install this deep PML transmission pan, Dustin cut a square out of the sound dampening plate. The picture show the PML pan installed, the modified plate installed, and the view from the front towards the back of the undercarriage.
Robert installed PML's deep pan for the NAG1/722.6 transmission on his 2007 Jeep Grand Cherokee with the 3.0 diesel engine. He is very happy with his PML Pan and reported that "The directions were well written and easy to follow. The bolt hole depth check was a very important detail. The fit and finish of the cast pan was excellent. There was tons of room for the pan to clear the exhaust and drive train." He added 1.75 quarts more than stock. Our thanks to Robert for email us his pictures and comments.
Troy installed this pan on his 2010 Jeep Grand Cherokee SRT8. The design of the Jeep makes for a close fit and the passenger side bolts were difficult to reach and he recommends a long allen head sockets. He reported about 0.300 inch clearance between the PML pan and the catalytic converter. From the exhaust hanger to the PML pan, he has 0.070 inches. He removed 5.5 quarts and added 8 quarts. He used RTV. No leaks and shifting is good.
Troy took fluid temperatures using the Torque Pro app and reading the PIDS input from the transmission directly. He saw about an 8 degree F lower termpature in daily driving and the extra capacity takes a little longer to get hot, which is perfect for his racing.
2013 Dodge Challenger
2013 Dodge Challenger SRT 392 has this PML pan installed. Customer reported that it fit perfectly.
Stock 722.6/NAG1 transmission pan, 2013 Challenger
PML transmission pan on 2013 Challenger
PML transmission pan on 2013 Challenger, with frame support back on
Click on image to view larger in a new tab or window.
Randall reported that his transmission fluid was 190 degrees after 30 min of driving before installing this PML pan. After he installed the PML pan and driving for 30 minutes with the temp outside at 90 degrees the fluid temperature was at 170 degrees. He removed about 4 quarts and added 1.3 gallons plus half a quart. He purchased a Dorman NAG1 transmission level dipstick from O'Reillys so he could check his fluid level.
For the filter, Randall suggests checking that the o–ring from the old filter is removed and that the new filter seats correctly in the slot in the valve body (see image at left).
He did not have any clearance issues from the larger PML transmission pan. It cleared the frame, exhaust and skid plate.
2015 Jeep Wrangler, Aftermarket Exhaust and Frame
Wes updated his 2015 Wrangler Rubicon with a turbo from Prodigy Performance. An added benefit of the turbo is the space available for this PML deep transmission pan.
Wranglers with the NAG1/722.6 transmission usually use PML stock capacity pan 11132 because the stock frame and exhaust do not allow enough clearance for a deep pan. With the aftermarket turbo, Wes had space for this PML deep transmission pan.
With this PML pan installed, Wes reported to us that his fluid temperatures are consistently 12 degrees cooler than before.
PML makes a cork composite gasket for PML NAG1/722.6 transmission pans.
One PML gasket is included with each transmission pan. Additional gaskets are available.
PML NAG1/722.6 pans are not compatible with the stock gaskets. The PML gasket is not compatible with the stock pan.
RTV can be used in place of the gasket but the pan is designed to work with the gasket.
In this video, learn how this PML pan seals to the transmission housing:
Filter for PML 722.6/NAG1 Transmission Pan
The Mercedes part number on the filter PML used during design and development is 140 277 00 95.
PML design this pan to work with the stock filter. There are filter supports cast into the pan to hold the filter in place at the same level as the stock pan. The filter supports eliminate the need for an extension.
Dipstick and Transmission Fluid Level
The fluid level should be at the same level in the stock pan and a PML pan. On many vehicles, the dipstick uses the bottom of the pan as a stop. PML pans have a ledge where the dipstick hits at the same level as the stock pan even though the PML pan is larger overall. In the above images of the inside of the pan, you can see the square ledge near the filter supports.
Many vehicles with these transmissions do not have a dipstick and the correct fluid level is based on temperature. The cap for the transmission fluid fill and level check can say "See Dealer". The installer of a replacement pan needs to have the correct tools to replace the transmission fluid according to the factory instructions. PML does not provide a dipstick.
Shield on Passenger's Front Corner
Some vehicles have a shield that attaches to the retaining clip at the front, passenger side corner of the stock pan.
Pans available since March 2016 have a tab for the shield to bolt on to. If you have an older pan, you will need to fabricate a connector or slightly bend the shield to bolt onto the PML pan.
PML placed the drain hole on the driver's side, near the rear of the vehicle.
A magnetic drain plug is included along with new mounting bolts.
A side location for the drain is safer than the bottom and still has easy access.
Optional Machining for Temperature Sending Unit
Optionally, this pan can be machined for a temperature sending unit.
If you would like PML to drill and tap hole, the machining charge is per hole. A plug for the hole is included.
The standard size is 1/8 NPT. Call or email if you need a different size.
PML designed three locations that optionally can be drilled and tapped for a temperature sending unit:
- Driver/left side
- Passenger/right side, toward the front
- Passenger/right side, toward the rear
PML Transmission Pan Compared to Stock
These images show this PML transmission pan compared to the stock pan.