1986F150Six Posted August 31, 2021 Share Posted August 31, 2021 https://www.ebay.com/itm/185025297968?hash=item2b145dfe30:g:dP4AAOSwu4lg5WYG Link to comment Share on other sites More sharing options...
Gary Lewis Posted August 31, 2021 Share Posted August 31, 2021 12A243 SWITCH ASSY. (IGNITION BAROMETRIC PRESSURE) Used on these Bullnose trucks: CALIBRATION PARTS LIST NO. 182 (Calibration No. 2-51X-R0)-6 Cyl. 300 C.I.D. (4.9L) 1982 F100/250 - - M/T-w/Hi-altitude carb. 1982 U150 — M/T-w/Hi-altitude carb CALIBRATION PARTS LIST NO. 273 (Calibration No. 3-51Z-R0J-6 Cyl. 300 C.I.D. (4.9L) 1983 F100 — M/T w/Hi—altitude carb. 1983 F150 — M/T w/Hi—altitude carb. 1983 F250 - - M/T—U/8500 lb. GVW w/Hi-altitude carb. 1983 U150 - - M/T W/Hi-altitude carb CALIBRATION PARTS LIST NO. 278 (Calibration No. 3-52V-R0J-6 Cyl. 300 C.I.D. (4.9L) 1983 E100/250 - - AOT w/Hi—altitude carb. 1983 F100 - - AOT w/Hi—altitude carb. 1983 F150 - - 2/W/D-AOT w/Hi-altitude carb CALIBRATION PARTS LIST NO. 279 (Calibration No. 3-52Z-R0)-6 Cyl. 300 C.I.D. (4.9L) 1983 F100 - - C6 W/Hi-altitude carb. 1983 F150 — C6 w/Hi-altitude carb. 1983 F250 - - 2/W/D—C6—U/8500 lb. GVW w/Hi-altitude carb. 1983 F250 — 4/W/D-C6 w/Hi-altitude carb. 1983 U150 — C6 w/Hi-altitude carb Link to comment Share on other sites More sharing options...
1986F150Six Posted September 1, 2021 Author Share Posted September 1, 2021 12A243 SWITCH ASSY. (IGNITION BAROMETRIC PRESSURE) Used on these Bullnose trucks: CALIBRATION PARTS LIST NO. 182 (Calibration No. 2-51X-R0)-6 Cyl. 300 C.I.D. (4.9L) 1982 F100/250 - - M/T-w/Hi-altitude carb. 1982 U150 — M/T-w/Hi-altitude carb CALIBRATION PARTS LIST NO. 273 (Calibration No. 3-51Z-R0J-6 Cyl. 300 C.I.D. (4.9L) 1983 F100 — M/T w/Hi—altitude carb. 1983 F150 — M/T w/Hi—altitude carb. 1983 F250 - - M/T—U/8500 lb. GVW w/Hi-altitude carb. 1983 U150 - - M/T W/Hi-altitude carb CALIBRATION PARTS LIST NO. 278 (Calibration No. 3-52V-R0J-6 Cyl. 300 C.I.D. (4.9L) 1983 E100/250 - - AOT w/Hi—altitude carb. 1983 F100 - - AOT w/Hi—altitude carb. 1983 F150 - - 2/W/D-AOT w/Hi-altitude carb CALIBRATION PARTS LIST NO. 279 (Calibration No. 3-52Z-R0)-6 Cyl. 300 C.I.D. (4.9L) 1983 F100 - - C6 W/Hi-altitude carb. 1983 F150 — C6 w/Hi-altitude carb. 1983 F250 - - 2/W/D—C6—U/8500 lb. GVW w/Hi-altitude carb. 1983 F250 — 4/W/D-C6 w/Hi-altitude carb. 1983 U150 — C6 w/Hi-altitude carb I had not seen one, before. Link to comment Share on other sites More sharing options...
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