The Ford Barn

Badpuppy · 01-30-2019, 05:53 PM

When I replaced the strange mix of bulbs in my car after buying it, I found little to guide me as to their proper equipage. The vendor catalogs were no help; they indicate you can put any bulb wherever it will fit. After extensive googling I put together the following list (subject to correction) (but then I never make a mistake

). So I thought I would share:

LIST OF 6 VOLT INCANDESCENT BULBS
(OE = Original Equipment; DO = Dealer Option)

HEADLIGHTS (BA15D base):

H-TYPE (before 3/29):
#1158 - 21/3 CP (S10) OE
#1170 - 21/6 CP (S10)
#1114 - 21/21 CP (S10)
#1118 - 32/21 CP (S10)
Apparently, of these only the #1158 survives but in the smaller S8 glass, which I suspect is not designed for parabolic reflectors. Snyder's sells part # T-13007-D (for Model T, 50/32 CP) which may be compatible, but see Note below.

TWOLITE TYPE (3/29 onward):
#1110 - 21/21 CP (S10) OE, A-13007-C
#1116 - 32/21 CP (S10) DO 11/30, A-13007-D
#1000 - 32/32 CP (S10) DO 11/30, A-13007-E
#1188 - 50/32 CP (S10) - See Note below
The S10 bulb profile was extincted early on, superseded by the RP11, with a wider, flatter top and no ridges.

BA15S base:

STOP LIGHT/SPORTLIGHT:
#1129 - 21 CP (S8) OE
#1680 -32 CP (S8) DO 6/31, A-18570
COWL/PARK:
#61 - 2 CP (G6)
DASH, TAIL:
#63 - 3 CP (G6) OE
DOME:
#81 - 6 CP (G6)
TAIL:
#81 - 6 CP (G6) DO 6/31, A-13466

AVAILABLE BA15S REPLACEMENTS:
---- - 10W* (G6)
#87 - 15 CP (S8)
#209 - 15 CP (B6)
#1133 - 32 CP (RP11)
#1183 - 50 CP (RP11)
* The "10 CP" bulb vendors sell is actually 10 Watts. MSCP of these bulbs is unspecified.

BA9S, Turn Signal Pilot:
#44 - 0.8 CP (T3.25)
#51 - 1 CP (G3.5)

Note: The 6V generator is designed for 12A output, 96 watts at 8 volts. Maximum authorized 32 CP headlights and 6 CP taillights draw a total of about 10A, leaving 2A for coil current. Intermittent brakes and/or horn requires another 5A each (32 CP brakes = 8A). Operation in this condition will draw down the battery until you shut off the lights to allow it to recover. Compare 50 CP headlight filaments which require approximately 6A each. You can see this may be a problem.

If you see any errors or can add any information (e.g., part numbers), let me know so I can update this list. Enjoy.

01-30-2019, 05:53 PM	#1
Badpuppy Senior Member Join Date: Dec 2017 Location: Guthrie, OK Posts: 1,145	FYI - 6 Volt Bulbs When I replaced the strange mix of bulbs in my car after buying it, I found little to guide me as to their proper equipage. The vendor catalogs were no help; they indicate you can put any bulb wherever it will fit. After extensive googling I put together the following list (subject to correction) (but then I never make a mistake ). So I thought I would share: LIST OF 6 VOLT INCANDESCENT BULBS (OE = Original Equipment; DO = Dealer Option) HEADLIGHTS (BA15D base): H-TYPE (before 3/29): #1158 - 21/3 CP (S10) OE #1170 - 21/6 CP (S10) #1114 - 21/21 CP (S10) #1118 - 32/21 CP (S10) Apparently, of these only the #1158 survives but in the smaller S8 glass, which I suspect is not designed for parabolic reflectors. Snyder's sells part # T-13007-D (for Model T, 50/32 CP) which may be compatible, but see Note below. TWOLITE TYPE (3/29 onward): #1110 - 21/21 CP (S10) OE, A-13007-C #1116 - 32/21 CP (S10) DO 11/30, A-13007-D #1000 - 32/32 CP (S10) DO 11/30, A-13007-E #1188 - 50/32 CP (S10) - See Note below The S10 bulb profile was extincted early on, superseded by the RP11, with a wider, flatter top and no ridges. BA15S base: STOP LIGHT/SPORTLIGHT: #1129 - 21 CP (S8) OE #1680 -32 CP (S8) DO 6/31, A-18570 COWL/PARK: #61 - 2 CP (G6) DASH, TAIL: #63 - 3 CP (G6) OE DOME: #81 - 6 CP (G6) TAIL: #81 - 6 CP (G6) DO 6/31, A-13466 AVAILABLE BA15S REPLACEMENTS: ---- - 10W* (G6) #87 - 15 CP (S8) #209 - 15 CP (B6) #1133 - 32 CP (RP11) #1183 - 50 CP (RP11) * The "10 CP" bulb vendors sell is actually 10 Watts. MSCP of these bulbs is unspecified. BA9S, Turn Signal Pilot: #44 - 0.8 CP (T3.25) #51 - 1 CP (G3.5) Note: The 6V generator is designed for 12A output, 96 watts at 8 volts. Maximum authorized 32 CP headlights and 6 CP taillights draw a total of about 10A, leaving 2A for coil current. Intermittent brakes and/or horn requires another 5A each (32 CP brakes = 8A). Operation in this condition will draw down the battery until you shut off the lights to allow it to recover. Compare 50 CP headlight filaments which require approximately 6A each. You can see this may be a problem. If you see any errors or can add any information (e.g., part numbers), let me know so I can update this list. Enjoy.