89 Taurus Bulb Style: 1156, 1157, or ...?

Chris Katop

89 Taurus Bulb Style: 1156, 1157, or ...?

by Chris Katop » Sat, 24 Sep 1994 07:48:44

I can't find the manual.  What is the style (model) of
the rear reverse bulb for the 89 Taurus: #1156, #1157, or # 3156?

thanks

Andrew McHorn

89 Taurus Bulb Style: 1156, 1157, or ...?

by Andrew McHorn » Sun, 25 Sep 1994 14:38:19



>Subject: 89 Taurus Bulb Style: 1156, 1157, or ...?
>Date: 22 Sep 1994 22:48:44 GMT
>I can't find the manual.  What is the style (model) of
>the rear reverse bulb for the 89 Taurus: #1156, #1157, or # 3156?
>thanks

I believe that it is a 1156 or 1157 ( in the 1986). Just go to Kragen or Jarco
and the charts will show you.
Andy Gre

89 Taurus Bulb Style: 1156, 1157, or ...?

by Andy Gre » Thu, 29 Sep 1994 05:34:37

: I can't find the manual.  What is the style (model) of
: the rear reverse bulb for the 89 Taurus: #1156, #1157, or # 3156?

Pull the old one out first. If it's a single filament inside, it's an
1156 (or its higher-intensity descendents; check the number on the
side). If it's dual-filament with two contacts on the bottom, it's an
1157 (or again, a higher-intensity version such as 2057). Read the
number on the side and replace accordingly...

-- Andy

Daniel Joshua Ster

89 Taurus Bulb Style: 1156, 1157, or ...?

by Daniel Joshua Ster » Thu, 29 Sep 1994 14:35:57

"If it's dual-filament with two contacts on the bottom, it's an
1157 (or again, a higher-intensity version such as 2057)."
NO.  The 2057 is NOT AS BRIGHT as the 1157, the 2057 is used when you
have more than one bulb in the same function (i.e. the 3-bulb-per-side
Chevy Caprice rear lights) the 2357 is the brightest DC Index base (pins
are offset so that the bulb can be installed only one way) bulb in the
xx57 family.

SL6 Dan

Andy Gre

89 Taurus Bulb Style: 1156, 1157, or ...?

by Andy Gre » Sat, 01 Oct 1994 06:54:46


: "If it's dual-filament with two contacts on the bottom, it's an
: 1157 (or again, a higher-intensity version such as 2057)."
: NO.  The 2057 is NOT AS BRIGHT as the 1157, the 2057 is used when you
: have more than one bulb in the same function (i.e. the 3-bulb-per-side
: Chevy Caprice rear lights) the 2357 is the brightest DC Index base (pins
: are offset so that the bulb can be installed only one way) bulb in the
: xx57 family.

??? Dan, I think we need to drag out the specs for the 2057, then. My
understanding from when I came across them in one of the parts stores
was that they were a slightly higher power, but a slighter shorter life,
than the 1157 they superseded. This was from reading the spec book out
of curiosity; I don't remember the exact figures, just the conclusion I
drew at the time.

Sorry, I don't follow your logic regarding why you _have_ to use a 2057
in the 3-bulb-per-side Caprice; the Caprice has had three bulbs per side
since, oh, 1966 or so, long predating the 2057. The LeMans of 1970-72
even used the 1157 in backup lights, with the taillight contact omitted
from the socket.

No flame war here, you understand; we just need the figures...

-- Andy

Daniel Joshua Ster

89 Taurus Bulb Style: 1156, 1157, or ...?

by Daniel Joshua Ster » Sat, 01 Oct 1994 16:44:44

Hi there.  Actually,the 2057 did NOT supercede the 1157.  here's how it
worked.

In this DC-index base bulb family, (1034,1157,2057,2357) all bulbs are
physically interchangeable, and specs apply to the Amber
(1034NA,1157NA,2057NA,2357NA) bulbs as well.

1034 and 1157:  2.0 candlepower on the low filament, 4.0 on the high.  
The 1157 is the "heavy duty" bulb introduced in the mid-late 60s as a
long-life alternative to the 1034, but they draw more current so you have
to have a "heavy duty" flasher or they will flash too fast.

2057: 1.8 candlepower low, 3.8 candlepower high.

2357: 3.2 candlepower low, 4.4 candlepower high.

Now, these are rated by the old (CCAT group, it's called--I don't know
what that means) candlepower rating, which has been superceded in the
last seven years or so.  I'll try to post the new ratings soon.

SL6 Dan

Andy Gre

89 Taurus Bulb Style: 1156, 1157, or ...?

by Andy Gre » Wed, 05 Oct 1994 01:19:37


: 1034 and 1157:  2.0 candlepower on the low filament, 4.0 on the high.  
: The 1157 is the "heavy duty" bulb introduced in the mid-late 60s as a
: long-life alternative to the 1034, but they draw more current so you have
: to have a "heavy duty" flasher or they will flash too fast.

: 2057: 1.8 candlepower low, 3.8 candlepower high.

Mmm-hm. I stand corrected, then.

This sort of begs the question: why come out with a new bulb that's
slightly weaker than its predecessor? For use in smaller lamps that
could overheat an 1157, or...?

-- Andy