light bulbs?
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Senior User
Joined: Aug 2009
Posts: 100
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From: Mohnton, PA
light bulbs?
After converting my 51 to 12 volt I am finding that the parking light bulbs will not fit in behind the lens. Is there a different, smaller dual filament bulb that will? They will be turn signals as well.
Lead Driver
Joined: Dec 2004
Posts: 7,669
Likes: 13
From: San Jose, CA
You should be using an 1156 or 1157 light bulb. My truck is still 6 volts, but I converted the parking lights into dual filaments for the turn signals. I'm using an 1156 (I think) 6v bolt, which is the same size as yours, likely, and have no fit problems with the lens.
There are two different types of bulbs. One type has the step-down knubs on the side and the other bulb has the knubs at the same level. Both types, however, should be fitting in the same distance inside the respective socket.
EDIT: Did you change out the complete socket assembly or just the contacts inside the socket?
If you changed out the sockets, then they may not be sitting in deep enough like Old F1 states. If you simply replaced the contacts inside the existing sockets, then you shouldn't have a problem with the bulb fitting inside the lens.
There are two different types of bulbs. One type has the step-down knubs on the side and the other bulb has the knubs at the same level. Both types, however, should be fitting in the same distance inside the respective socket.
EDIT: Did you change out the complete socket assembly or just the contacts inside the socket?
If you changed out the sockets, then they may not be sitting in deep enough like Old F1 states. If you simply replaced the contacts inside the existing sockets, then you shouldn't have a problem with the bulb fitting inside the lens.
Cargo Master
Joined: Feb 2008
Posts: 2,795
Likes: 129
From: Windermere Valley,B.C. Ca
Hum, if you are looking for the same size (small) as a 12 volt # 67 or is it # 68, (?) like the original single element park light bulb in a double contact I don’t know that there is one. There are some small bulb double contact (used in dome lights), but not with the off set index that a double filament bulb uses. You must have changed the socket to facilitate the off set index double contact bulb, (or where they already double contact) ? I think you might have to recess the socket further back in the lamp. Or someone with real knowledge will know, a LED might also be a solution
This is a chart that I saved of the net but is not really applicable for you unless you are **** like me and surf the net until you find a bulb buyers guide with all the dimensions.
(sure miss my parts store some days, or better yet should have keep a set of catalogues)
This is a chart that I saved of the net but is not really applicable for you unless you are **** like me and surf the net until you find a bulb buyers guide with all the dimensions.
(sure miss my parts store some days, or better yet should have keep a set of catalogues)
Common Part # and Cross Reference #'s
I was looking for some LED turn signal bulbs and found this chart (that I couldn’t get to copy correctly, so litigate me).
Common Part # Cross Reference #'s
1157 1016 1034 1076 1130 1154 1158 1493 2057 2357 2397 7528
1156 1073 1093 1129 1141 1159 1295 1459 1619 1651 1680 7506 7527
7443 7443 7440
7440 992A *7443 bulbs will work in all 7440 applications
194 147 152 158 159 161 168 184 192 193 259 280 285 447 464 555 558 585 655 656 657 1250 1251 1252 2450 2652 2921 2825
3157 3057 3155 3357 3457 4157
**Use Special 3157-SRCK bulbs to replace the tail lights on 04-07 Dodge Ram trucks, center tail tamp bulbs on 88-99 (Old Body Style) Chevy, GMC full size trucks & SUVs (Use the Regular 3157 bulb for the top tail lamp bulbs), 95-01 Cavalier and Sunfire,& 92-98 Grand Am tail lamp bulbs
Use 3157-SACK bulbs for front turn signals on the Toyota Tundra.
If you install regular LED bulbs and keep blowing fuses you probably need these bulbs.
3156 3456 4156 *3157 bulbs will work in all 3156 applications.
57 1895 53 57 182 257 363 1445 6253
74 17 18 37 70 73 79 85 86 2721
921 906 579 901 904 908 909 912 914 915 916 917 918 920 921 922 923 926 927 928 939
211 212 212-2 214-2 6413 6429
6418 3423 3425 6411 6423 6461
3175 3021 3022 6428 6430
I was looking for some LED turn signal bulbs and found this chart (that I couldn’t get to copy correctly, so litigate me).
Common Part # Cross Reference #'s
1157 1016 1034 1076 1130 1154 1158 1493 2057 2357 2397 7528
1156 1073 1093 1129 1141 1159 1295 1459 1619 1651 1680 7506 7527
7443 7443 7440
7440 992A *7443 bulbs will work in all 7440 applications
194 147 152 158 159 161 168 184 192 193 259 280 285 447 464 555 558 585 655 656 657 1250 1251 1252 2450 2652 2921 2825
3157 3057 3155 3357 3457 4157
**Use Special 3157-SRCK bulbs to replace the tail lights on 04-07 Dodge Ram trucks, center tail tamp bulbs on 88-99 (Old Body Style) Chevy, GMC full size trucks & SUVs (Use the Regular 3157 bulb for the top tail lamp bulbs), 95-01 Cavalier and Sunfire,& 92-98 Grand Am tail lamp bulbs
Use 3157-SACK bulbs for front turn signals on the Toyota Tundra.
If you install regular LED bulbs and keep blowing fuses you probably need these bulbs.
3156 3456 4156 *3157 bulbs will work in all 3156 applications.
57 1895 53 57 182 257 363 1445 6253
74 17 18 37 70 73 79 85 86 2721
921 906 579 901 904 908 909 912 914 915 916 917 918 920 921 922 923 926 927 928 939
211 212 212-2 214-2 6413 6429
6418 3423 3425 6411 6423 6461
3175 3021 3022 6428 6430
Post Fiend
Joined: May 2008
Posts: 7,641
Likes: 21
From: Poway, Ca.
If you changed the sockets, then, as Ilya pointed out, you have to set the new, base grounded sockets deeper into the light housing. Otherwise any bulb you use that is made for parking signal lights will touch and burn the lens.
To my knowledge there are no "shorter" bulbs that will fit those sockets and not touch.
Here's the bulb catalogue:
G.E. Automotive Bulbs
Or call the guys at "The Light House."
TheLightHouseInc.com
To my knowledge there are no "shorter" bulbs that will fit those sockets and not touch.
Here's the bulb catalogue:
G.E. Automotive Bulbs
Or call the guys at "The Light House."
TheLightHouseInc.com
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 787
From: Simi Valley, CA
6V & 12V Parking/Stop/Rear/Turn Signal bulbs:
Single filament (one contact): #1129 6V 21 candlepower / #1133 6V 22 candlepower //#1073 12V 32 candlepower / #1156 12V 32 candlepower.
Double filament (two contacts): #1154 6V 21-3 candlepower // #1034 12V (1034NA Amber) 31 candlepower / #1076 12V 32 candlepower / #1157 12V (1157NA Amber) 33 candlepower / 1034/1157 are the same size.
#67 6V = Single filament License/Courtesy/Map Lamp-4 candlepower.
AFAIK, there is no #68 bulb used on a FoMoCo vehicle.
Turn signals require a double filament bulb.
Single filament (one contact): #1129 6V 21 candlepower / #1133 6V 22 candlepower //#1073 12V 32 candlepower / #1156 12V 32 candlepower.
Double filament (two contacts): #1154 6V 21-3 candlepower // #1034 12V (1034NA Amber) 31 candlepower / #1076 12V 32 candlepower / #1157 12V (1157NA Amber) 33 candlepower / 1034/1157 are the same size.
#67 6V = Single filament License/Courtesy/Map Lamp-4 candlepower.
AFAIK, there is no #68 bulb used on a FoMoCo vehicle.
Turn signals require a double filament bulb.
Cargo Master
Joined: Feb 2008
Posts: 2,795
Likes: 129
From: Windermere Valley,B.C. Ca
DISTASTEFUL!!!…………….that would be absolutely gorgeous, beautiful, stunning, fantastic, ……………I know, you never would have guessed, but I’m doing amber lens with LED bulbs wired so park lights are on with headlights! Darkside rules! 
(Yes Julie, good idea on the socket, Ilya).
(Yes Julie, good idea on the socket, Ilya).
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Post Fiend
Joined: May 2008
Posts: 7,641
Likes: 21
From: Poway, Ca.
DISTASTEFUL!!!…………….that would be absolutely gorgeous, beautiful, stunning, fantastic, ……………I know, you never would have guessed, but I’m doing amber lens with LED bulbs wired so park lights are on with headlights! Darkside rules!
(Yes Julie, good idea on the socket, Ilya).
(Yes Julie, good idea on the socket, Ilya).
BTW if you simply replace the inside of the socket to handle a double filimant light, you may run into the offset pin problem with the double filliment lights and the old socket.
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