Mercedes-Benz 722.9, NAG2 Deep Transmission Pan

PML Mercedes 722.9 NAG2 7G-Tronic 7 speed Transmission Pan prototype parts now available.

Status on December 19, 2023: just finished making prototype parts, sign up for mailing list below if interested

Volume: 2.6 quarts over stock

Dimensions: Click here for dimensions. , PML pan is about 2 inches deeper than stock pan

Number of Bolts: 6

Also, pictures of the OEM pan on vehicles are very helpful. Email any pictures, measurements and suggestions to product development.

Benefits

PML 722.9 pan has:

• Fins and extra capacity to keep fluid cooler
• Drain and magnetic drain plug for easy servicing
• Heavy duty, quality sand cast aluminum contruction for strength and a leak-free seal
• Boss for optional temperature sending unit
• Does not use formed gasket or retaining clips, custom cork gasket and new mounting bolts provided with pan
• Flat gasket sealing surface, thick flange, and custom PML gasket to eliminate warping and tweaking

Transmission and OEM and PML Transmission Pans

The 722.9 transmission pan and gasket attached to the transmission with a retaining clip and bolt. The retaining clip system can warp the pan and lead to leaks. The PML pan has a flat flange mating surface and cork gasket and bolts on without the clips.

         
Picture 1: filter on transmission
Picture 2: OEM pan on transmission
Picture 3: OEM retaining clip and bolt
Picture 4: PML pan on transmission
Click on image to view larger.

The inside of the pan has a fluid level check tube. This functionality is duplicated in the PML pan.

PML 722.9 NAG2 Deep TransmissionPan

Top down view and passenger side pictures of this pan.

      Click on image to view larger.

Gasket

PML makes a custom cork composite gasket for this transmission pan. One gasket is included with each pan. Additional gaskets are available: PML NAG2/722.9 Gasket

PML NAG2/722.9 pans are not compatible with the OEM gasket. OEM pans are not compatible with PML gaskets.

     Click on image to view larger.

PML designed the transmission pan with a thick and machined flat surface to maximized the sealing area. The PML pan will not tweak or deform. The thick flange and bolts maintain even pressure on the housing for a secure seal. Retaining clips used with the OEM pan can cause deforming and tweaking of the OEM pan leading to fluid leaks.

Included with PML Transmission Pan

  Click on image to view larger.

PML includes a custom gasket, brass fitting to raise the fluid level check above the flange, magnetic drain plug with copper sealing washer, new mounting bolts and washer and a button screw for attaching a bracket (if needed).

The PML pan does not use a retaining clip system to hold the gasket and pan on to the transmission housing. The retaining clip system can be difficult to use and people have reported that it warped the OEM pan, causing leaks. Using bolts on the thick flange on the PML pan improves sealing, minimizing leaks.

Inside of OEM and PML Pans

PML pan includes a tube so that the fluid level check is the same as the OEM pan.

           Click on image to view larger.

Filter

The PML 722.9 NAG2 transmission pan works with the OEM filter, including the new Smart Filter. The PML pan has supports cast into the bottom to hold the filter in place.

         
Click on image to view larger.

PML designed the pan so that the fluid dynamics of the transmission are not change. The fluid pickup and checking the fluid level are the same with the PML pan as with the OEM pan.