SuperCoupe8 Posted July 8, 2022 Share Posted July 8, 2022 Hi Guys, Ive decoded my build plate, but not sure what the stamped "O" and "K" refers to ....Im not convince its just OK stamp at the end of the line Can Anyone shed some light on it ? Link to comment Share on other sites More sharing options...
neil morse Posted July 8, 2022 Share Posted July 8, 2022 I obviously don't know for sure, but I don't have any reason to doubt that this is, in fact, a final "OK" stamped onto the data plate when the car came off the line. The fact that it's at an odd angle and obviously stamped on there on top of everything else certainly supports that theory. I had a '48 Chrysler that had a stenciled "OK Final" in white paint on the firewall, which I figured was the same thing. Link to comment Share on other sites More sharing options...
SuperCoupe8 Posted July 9, 2022 Author Share Posted July 9, 2022 That's also what I thought initially ...but I've seen build plates with just the "O"stamped on the plate and others with just the" K"... Link to comment Share on other sites More sharing options...
Daves1940Buick56S Posted July 9, 2022 Share Posted July 9, 2022 My 1938 66S is supposed to have a K on the plate somewhere as it was built as a dual sidemount with no trunk compartment for a spare. Link to comment Share on other sites More sharing options...
2carb40 Posted July 9, 2022 Share Posted July 9, 2022 On 7/8/2022 at 1:31 AM, SuperCoupe8 said: Hi Guys, Ive decoded my build plate, but not sure what the stamped "O" and "K" refers to ....Im not convince its just OK stamp at the end of the line Can Anyone shed some light on it ? I've read it denotes heater defroster installed. 1 Link to comment Share on other sites More sharing options...
buick looks fine for 39 Posted July 11, 2022 Share Posted July 11, 2022 O and K are options codes. I have a 1941 Buick Distribution book with option codes, and I'll look it up for you. Buick used options codes or variations of them for quite a few years. Thanks Leif 1 Link to comment Share on other sites More sharing options...
buick looks fine for 39 Posted July 11, 2022 Share Posted July 11, 2022 Option codes for Buick 1941 are as follows, A-dual carb, B-accessory group, C-special steering wheel, D-rear wheel sh, H-J radio, K- heater, O- grained garnish molding, P limousine dictaphone, R-foamtex cushion, S-body hardware group, T-rear seat center arm rest, W-special gear ratio, X-high springs, and WWT-white wall tire. Option codes for Buick 1939 are as follows, A-panel board, B-special gear ratio, C-window reveals, D-accessory group, E-special wheel, F-oil bath air cleaner and oil filter, H-radio, J-fender lamps, K L M- heaters, N defroster, and O-sunshine turret top. In addition, WWT was also used in 1939 for white wall tires and 6 or 6W for dual side mounts. 6 or 6W was also an option code for 1940. The accessory group option normally referred to wheel trim rings. Multiple letter codes for heater options were meant to differentiate between deluxe heaters, fresh air heaters and standard heaters. I believe 1940 had a specific letter code for under set heaters but I can't remember what the letter was. The option codes were intended to be used in conjunction with the body tracking number on the build plate. It was not unusual for options codes to be skipped on the build plates during production. Also, if the option was installed at the dealership there would be no code marked on the build plate. 1937 and 1938 used many of the same option codes as 1939. 6 Link to comment Share on other sites More sharing options...
Daves1940Buick56S Posted July 12, 2022 Share Posted July 12, 2022 I will have to look further for info on the K code I read about somewhere. Maybe it is supposed to be a W. I do know mine was built with a very shallow space where the spare normally resides, and a center support bar making it impossible to put a spare in that space. 1 Link to comment Share on other sites More sharing options...
SuperCoupe8 Posted July 13, 2022 Author Share Posted July 13, 2022 On 7/12/2022 at 8:31 AM, buick looks fine for 39 said: Option codes for Buick 1941 are as follows, A-dual carb, B-accessory group, C-special steering wheel, D-rear wheel sh, H-J radio, K- heater, O- grained garnish molding, P limousine dictaphone, R-foamtex cushion, S-body hardware group, T-rear seat center arm rest, W-special gear ratio, X-high springs, and WWT-white wall tire. Option codes for Buick 1939 are as follows, A-panel board, B-special gear ratio, C-window reveals, D-accessory group, E-special wheel, F-oil bath air cleaner and oil filter, H-radio, J-fender lamps, K L M- heaters, N defroster, and O-sunshine turret top. In addition, WWT was also used in 1939 for white wall tires and 6 or 6W for dual side mounts. 6 or 6W was also an option code for 1940. The accessory group option normally referred to wheel trim rings. Multiple letter codes for heater options were meant to differentiate between deluxe heaters, fresh air heaters and standard heaters. I believe 1940 had a specific letter code for under set heaters but I can't remember what the letter was. The option codes were intended to be used in conjunction with the body tracking number on the build plate. It was not unusual for options codes to be skipped on the build plates during production. Also, if the option was installed at the dealership there would be no code marked on the build plate. 1937 and 1938 used many of the same option codes as 1939. Thank you so so.much ...that makes sense ...mine has has the wood grain mouldings and heater.... Link to comment Share on other sites More sharing options...
buick looks fine for 39 Posted July 15, 2022 Share Posted July 15, 2022 You're welcome, Sir I'm glad it helped 1 Link to comment Share on other sites More sharing options...
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