There is nothing like that in the parts manual that I recall seeing, so I'm going to say they should have all come with an electric washer with a bottle on the firewall.
I have seen the foot pump deal before, it was on a late 60s Ford truck, like a 2 ton with a box van on the back. It worked about as you would expect. If you stomped on the thing hard and only wanted a tiny squirt it would spritz a bit out.
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95 Isuzu Trooper Daily Driver
86 Isuzu Trooper reliable backup
77 LUV 2wd stock beltway blaster (resting)
79 4x4 LUV project: 2.6L, 5spd, 31s (eventually)
MEPR: Man, my 4x4 makes all other LUVs look good
