Shop Our Categories www.portrayalpress.com Search site Manuals (How-To, TM, Workshop, etc.) Recommended Sets by Vehicle By Common Name By Manufacturer Original Manuals Reference Series Amphibious Armor Aviation Jeeps Motorcycles Trucks Other Vehicles Add-ons and Accessories Engines Artillery Small Arms & Machine Guns Field Manuals Markings Guides Radio & Install Civilian Shop Manuals Field Generator Electrical Books We Recommend Jeeps Military History Uniform Reference Motorcycles Amphibious Armor Hi-Speed Tractors Land Rover Trucks Portrayal.tv Merchandise Submit Search Vehicle Information Nav Menu 3 Nav Menu 4 Nav Menu 5 Nav Menu 6 Nav Menu 7 Nav Menu 8 > Manuals (How-To, TM, Workshop, etc.) > Jeeps > WWII (GPW & MB) > US Army MWO to Convert G503 Electrical System from 6 to 12 Volt (MB/GPW) Price: $11.99 Product Code: MWO-ORD-G503-W7 Qty: Description This is the manual to convert the electrical system from 6 volts to 12 volts on certain specified Willys MB/FordGP vehicles. Enlarged, complete edition, 29 pages. Related Items TM 10-1186 Willys Master Parts List (MA, MB & MBT) ORD 8 G503 Spare Parts and Equipment Listing for MB/GPW (1951) Changes to TM 9-803 for G503/MB/GPW TM 10-1348 Illustrated Parts Manual for Ford GPW, Change 1, 10 April 1942 Price: $48.99 Price: $54.99 Price: $5.00 Price: $25.00 ORD 8 G503 Spare Parts & Equipment Lists GPW/MB (1944) Arc Welder Kit for G503. Installation manual for MB/GPW. 20 pages. TM 9-1803A Engine Rebuild Manual for G503 (MB/GPW) ORD 7 G503 Operational Maintenance Allowances for MB/GPW (1951) Price: $28.99 Price: $8.00 Price: $21.00 Price: $15.99