1961-69: Jeep CJ-5 and CJ-6
Kaiser Jeep added the British-made Perkins 4.192 four-cylinder diesel to the CJ-5 and CJ-6 options list for 1961. The option ended in ’68 but Jeeps so-equipped were sold into ’69. Over the years of production just under 2,000 were sold. The 3.15L engine reputedly offered 30 mpg, with acceleration performance equal to the standard four-cylinder gas engine. The lower rpm redline tended to limit the upper end, so they pretty much fell over at about 50 mph with the standard Jeep 5.38:1 gearing. The Perkins 4.192 was one of the last of Perkins’s old-school, 3-main bearing designs and had appeared in 1958. Production of the 4.192 stopped in ’72. Jeep toyed with the idea offering this engine in other platforms but never took that leap. Until the ’80s Jeep’s many diesel offerings were limited to overseas markets.
Perkins 4.192 diesel
1966 CJ-5 diesel with a rear PTO, Newgren 3-point lift and Newgren buzz saw