Has a CJ engine.

https://phoenix.craigslist.org/wvl/cto/d/peoria-willys-mb-military-jeep/7128720435.html

“1943 WILLYS MB RESTORED/UPGRADED. THIS ’43 HAS A NEW BODY, TOP, CUSHIONS(ON ORIGINAL SEATS IN FRONT). THE REAR SEAT IS NEW. THE ENGINE IS A FROM A WILLYS CJ-3A THAT HAS BEEN CHECKED IS IS IN EXCELLENT CONDITION. IT IS NOT A KNOCKER OR BANGER. THERE ARE NEW TIRES AND WHEELS, NOT COMBAT. THERE IS A TOOLBAG WITH TOOLS, TIRE PUMP, FIRST AID KIT, JACK AND LUG WRENCH. THERE IS A COMPLETE SET OF ORIGINAL MANUALS, TM 9-803, 1803 A&B. THERE IS A CLEAR TITLE. THERE IS A 12 VOLT SYSTEM W/ KEY START. FUEL SYSTEM IS NEW, BRAKE LINES ARE NEW. THERE IS A SPARE TIRE AND WHEEL WITH SPARE LOCK, 5 GALLON JERRY CAN. THERE ARE MANY OTHER SMALL ITEMS TOO NUMEROUS TO MENTION.”