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MB GPW G503 WWII Military Jeep Oil Bath Air Filter conversion to Dry Air Filter WW2 Restoration

This article shows how to use a more modern method of keeping your air clean to your carburaetor. Cleaning the oil out of the air filter and adding three pieces can give you a better, cleaner method of air to your engine to burn.

This article applies to both Willys MB and Ford GPW WWII Military Jeeps 

1. One common modification to your WWII jeep configuration is to change the Oil Bath air filter to a more modern efficient Dry air filter. Here we show you the common parts needed to make this change. Note: this configuration will work with non-pancake air filters from early 1942 to 1945.

2. First you need to clean out your oil bath air filter unit. Remove all oil, and clean well with a degreaser.

3. You need three parts, (1) Air Filter, (2) Rubber Gaskets. First you can get the air filter #2036 for about $8 from Napa. Possible source 5-3/8"od x 3-1/2"id x 1" thick.

Update Feb 25, 2017
Fred Coldwell noted the 1 inch may not be avalaible at Plumbing supply Instead, use :
Two (2) sponge gaskets for wall hung toilet 5-3/8" OD x 3-1/2" ID x 3/4"

Don't Buy: McMaster Changed diameter from 5 1/2 to 6 1/2 diameter (in 2013).

4. To install, you place one of the sponge rings at the bottom of the air filter.

5. Next, place the air filter on top of the sponge ring you just installed

6. Place the final ring on top of the filter

7. Place the Air Filter housing over the items you just installed and fasten the clips to the unit. Its now ready to use!

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