RPO K47, Heavy Duty Oil Bath Air Cleaner, first became available in the mid-1963 model year. This is how it appeared on cars:
At some point thereafter, it also became available for Forward Control (FC) vehicles, and looked like this:
by early 1964 model year, it was also available for AC cars:
Mid-1964, the system was redesigned for non-AC car and also added for Turbo cars:
Design changes were only slightly altered for 1965:
AC car oil bath design was essentially the same as for 1964:
In 1966, the changes in Air conditioning eliminated the need for the separate AC version of K47, so from 1966-69 the 1965 non-AC version was the only one used.
hi bill. nice pics.
the one photo caption- fc and wagon- should be revised to just fc. the oil bath units did not become available until 1963 model year, so no wagons would have been factory equipped as such.
mechanically however, all the parts pieces from an fc oil bath would fit on a wagon, so it would be possible to add such a unit if an owner desired to do so.
lc