Light Bulbs

Unless otherwise noted, Chrysler part numbers are from [Chrysler 1959] and/or [NAPA 1937]. Design volts, amps, output and filament information is from [GE 1970].

[Chilton 1931 293] notes that:

“All numbers over 100 are for headlights.
All numbers from 61 to 94 are for auxiliary lights.
Even numbers indicate double contact (D.C)
Odd numbers indicate single contact (S.C.)”

Apparently a large number of bulbs that were originally designed for headlights were later destined to be used in dome light and brake light applications.

Typical Use	Chrysler	Mazda7 Number	Bulb	Base	Design Volts	CP or Watts	Design Amps	Filament
Indicator, Radio	187189	44	T-3 1/4	Min. Bay.	6.3	.90 C	0.25	C-2R
Auto instrument	115273	51	G-3 1/2	Min. Bay.	7.5	1 C	0.22	C-2R
Auto instrument	125588	55	G-4 1/2	Min. Bay.	7.0	2 C	0.41	C-2R
Dash, parking light	142303	63	G-6	SC Bay.	7.0	3 C	0.63	C-2R
Dome light	142306	81	G-6	SC Bay.	6.5	6 C	1.02	C-2R
Dome light	142304	87	S-8	SC Bay.	6.8	15 C	1.91	C-6
Dome light	142446	88	S-8	DC Bay.	6.8	15 C	1.91	C-6
Head light Note 1	142307	1000	RP-11	DC Bay.	6-8	32 C 32 C		C-2V
		1105	RP-11	SC Bay.	6.2	50 C	5.72	C-2V
Head light Note 2	142305	1110		DC Bay.	6-8	21 C 21 C
Head light Note 2		1116	S-10	DC Bay.	6-8	21 C 32 C		C-2V
Note 3	142308	1129	S-8	SC Bay.	6.4	21 C	2.63	C-6
		1133	RP-11	SC Bay.	6.2	32 C	3.91	C-2R
		1134	RP-11	DC Bay.	6.2	32 C	3.91	C-2R
Tail & brake light	145416	1154	S-8	DC Index	6.4 7.0	21 C 3 C	2.63 0.75	C-6 C-6
Tail & brake light	142449	1158	S-8	DC Bay.	6.4 7.0	21 C 3 C	2.63 0.75	C-6 C-6
Auto spotlight		1183	RP-11	SC Bay.	5.5	50 C	6.25	C-2V
Searchlight		1184	RP-11	DC Bay.	5.5	50 C	6.25	C-2V
Head light Note 4		1188	RP-11	DC Bay.	6.2 6.2	50 C 32 C	5.72 3.91	C-2V
Head light Note 5	110183	2320	RP-11	DC Pref.	6.2 6.4	32 C 21 C	4.52 3.3	C-2V
Head light Note 5	659530	2331	RP-11	DC Pref.	6	32 C (27 W) 32 C (27 W)		C-6
Head light	854750	4030	PAR-56			40 W 30 W
Auto Spotlight	1253120	4515	PAR-36		6.4	30 W		C-6
Head light		6006	PAR-56		6.1 6.2	50 W 40 W		C-6 C-6
Head light		6012	PAR-56		12.8 12.8	50 W 40 W		C-6 C-6
Head light		6014	PAR-56		12.8 12.8	60 W 50 W		C-6 C-6
Head light Note 6		H6024	PAR-56		12.0 12.0	60 W 40 W	5.02 3.34

Note 1

[Chrysler 1959] indicates that the 1000 bulb has a 32 CP rating. When sold in antique automotive swap meets these bulbs are often referred to as 50 CP bulbs. Several samples of the 1000 bulb and the original boxes they were delivered in clearly indicate that the bulb is 32cp/32cp. The filament type of the 1000 is based on examination of a sample bulb.

Note 2

Information from [Chilton 1931 293]. The 1116 bulb was listed as a 32cp replacement for the 21cp 1110 bulb. [NAPA 1937] shows the 1110 bulb to be a two filament bulb with each filament at 21cp. It also shows the 1116 to be a two filament bulb with 21cp and 32cp ratings. Photos of a boxy of 1116 bulbs provided by Jeff Machusak that confirms the 32cp/21cp rating and lists the bulb shape as S-10 (1-1/4 inch diameter spherical) while the photos show as slightly non-spherical shape but not the RP-11 shape of other era headlight bulbs. The photos clearly show the filaments as C-2V.

Note 3

[Chilton 1931 293] indicates that the 1133 bulb was a 32 CP replacement for the 21 CP 1129. This seems odd in that the bulb shape and filament are different. It is unlikely that the 1133 could have been properly focused in head lamps designed for the 1129 bulb.

Note 4

Data on the 1188 bulb is based on samples clearly marked “50-32C 6-8V” The filament type and bulb shape listed here are based on examination of sample bulbs. Design voltage and current draw based on that typical of other 32cp and 50cp bulbs intended for the same application

Note 5

Data from [NAPA 1937]

Note 6

Data from Internet Web searches. Not verified by printed source.

Note 7

Mazda was a trademark of General Electric and was selected based on the Persian god of light named Ahura Mazda.