According to Confidential Bulletin #45, dated May 10, 1950 (ALL DEALERS series) Group 2, marked as "Installed on Kaiser Deluxe 4-door sedans (initial production only" consisted of:
Oil Bath Air Cleaner
Directional Signals
Rear Seat Cigarette Lighter
Bumper Guard Ends and Deluxe Guards
Chrome Wheel Covers
Group 4. marked as "Installed on all Kaiser Deluxe 4-door sedans and 4-door Travelers until approximately June 15, 1950" consisted of:
All items in Group 2 with the following additional items
Tail Pipe Extension [also known as Exhaust Deflector]
Tilt-type non-glare Mirror
There was also a 4A which was to be used on Kaiser Deluxe 2-door body types and was same as Group 4 except for no rear seat cigarette lighter
Group 6 went on all 4-door Deluxe models starting approximately June 15, 1950 and consisted of everything in group 4 plus electric clock
There was a Group 6A which was to be used on Kaiser Deluxe 2-door body types and consisted of everything in group 6 except for no rear seat cigarette lighter
According to Confidential Bulletin #48, dated August 17, 1950 (ALL DEALERS series) Accessory Group 9 would go into production on all Kaiser Deluxe 4-door body types approximately August 25, 1950. This group had all the items found on Group 6 plus the Electric Windshield Wipers and the Tenite (plastic) steering wheel.
There was also Group 9A going into production same time as Group 9, but for 2-door body types. This had all the items found in Group 9 except there was no rear seat cigarette lighter. Some 2-doors may be equipped with rear passenger arm rests that have a small lighter and ash tray built in.
Prices increased on the Accessory Groups as the equipment list for the groups got bigger.