1156 or 1157 bulb

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Jan 30, 2009 | 11:08 AM

jm1211

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Tourer

Joined: Jul 2008

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From: Waukesha, WI near Milwaukee

1156 or 1157 bulb

dumb question. what is the difference between the 1156 or 57? And which one is used on the rear turn signals of a 06 street glide?

Jan 30, 2009 | 11:20 AM

DoomBuggy

Road Master

Joined: Apr 2008

Posts: 1,230

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From: Oak Park, IL

1157 is a twin element, 1156 is a single element. If your bike uses one of them it would be the 1157 for brake and runing light. If your turn single does not have a running light as well as a turn single then it would be the 1156. The 1156 was used mainly in multiple light configurations like the 62 Chevy or as marker light bulbs in older cars.

Jan 30, 2009 | 11:21 AM

Baddflhtcu

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single element and dual element not sure what's in 06 SG turn sigs my guess is single

Jan 30, 2009 | 11:21 AM

garyhendley

Outstanding HDF Member

Joined: Feb 2008

Posts: 2,706

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From: Sunland, CA

the 1156 is a single element there is 1 contact point on the bottom

the 1157 is a dual element there is 2 contact points on the bottom

if i remember right the 1157 is the signals-ride safe

Jan 30, 2009 | 11:25 AM

TexasSG

Road Captain

Joined: Sep 2008

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From: Kingwood, TX

HD is still using 1156/1157's not 2056/2057's?

Jan 30, 2009 | 11:49 AM

TheShrink

Road Warrior

Joined: Feb 2008

Posts: 1,484

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From: Sarasota, Florida

Fronts should be dual filament (running & signal) rear should be single (signal only). Some guys change the sockets on the rear to dual so they can use dual filament for run/turn. Other guys add a run/turn/brake controller which then makes your single filament bulbs act like a dual filament.