Exterior Article - LED Lighting - Taillights and marker lights

[Mopar1973Man]

LED Lighting

 

Parts List

• LED marker light
• LED Taillight
• Heavy duty LED flasher

 

As for installing it just simple change of parts. The flasher is found in your driver side of the dash. If the flasher been there a while then it might be difficult to remove. Just take your time and work the flasher it will come out. Pull the stock flasher out and plug in the new flasher. 

 

As for the taillights you need a T25 screwdriver. There are 2 screws holding each taillight in place. The outside edge is a set of pins into the body. Need to be firm but careful and pull the light straight out. Top bulbs are your tail lights simply twist the socket and it should come out. Simply change the bulbs out. Leave the bulb out of the taillight for testing. 

 

Front marker lights for stock marker there is a Phillips screw holding the light in place on the bottom. Then just pull forward. Twist the socket and remove. Now change out the bulb. Again leave the bulb out for testing. 

 

Aftermarket headlight you might have a unit like my own which the marker light is part of the headlight. This you'll need to remove the 3 10mm bolts and pull the headlight forward to gain access to the marker lights. After that, it is just like the stock marker light. Twist the socket to remove and change the bulb out. 

 

Now testing you want to simply turn on the parking lamps and see if the front marker lights are both white and the rear taillights are dim red. Now you can hit the hazards and check and see if the front marker lights turn amber and the rear taillight flash bright red. If any of the bulbs are backward pull them out and turn then 180 and resocket the bulb. This should fix this problem.

 

As for the bulbs listed above, I'm using a switchback bulb in the front marker lights. This bulb will be white light on parking lamps and when a turn signal or hazards turn on the bulb automatically switches from white to amber. A member brought up laws might be in effect for white marker lamps in front. Might want to check with local laws on this. 

 

 

View full Cummins article

[Dieselfuture]

So 3157 switchback is front, 3156/3157 is rear, basically rear can work in front if you didn’t want the switchbacks? And do you know the reverse bulb number in led? 

P.S. it seems a little bright on your front clear lenses for upcoming traffic? Maybe not, hard to judge from video. 

[Mopar1973Man]

14 minutes ago, Dieselfuture said:

So 3157 switchback is front, 3156/3157 is rear, basically rear can work in front if you didn’t want the switchbacks?

 

Just select the normal front amber bulb then.

https://www.superbrightleds.com/moreinfo/front-sidemarker-light-bulb/3156-3157-ck-led-bulb-dual-function-27-smd-led-tower-wedge-retrofit/3557/7522/?year=2002&make=22&model=1351&scc_id=1396

 

16 minutes ago, Dieselfuture said:

And do you know the reverse bulb number in led? 

 

Here you go.

https://www.superbrightleds.com/moreinfo/back-up-light-bulb/3156-3157-ck-led-bulb-dual-function-27-smd-led-tower-wedge-retrofit/3557/?year=2002&make=22&model=1351&scc_id=1427

17 minutes ago, Dieselfuture said:

P.S. it seems a little bright on your front clear lenses for upcoming traffic? Maybe not, hard to judge from video

1

 

Actually once outside in bright daylight not bad.

 

[Stormin08]

i have had mine swapped to LED since 2014, love the look and so far no bulb issues.

 

i would like to swap to switchbacks up front, just havent yet.

[Mopar1973Man]

Slowly working at converting my truck all over to LED. So far everything I've done I've been seriously happy with. There is one mod I'm trying to plan out for is doing footwell lighting for the truck. Always happens at some point at night you drop something flip on the interior light bend over and now cast a shadow on the floor for what you're looking for. 

 

I'm going to work at the under hood light and the rear cab brake light as well. 

[Bcoan55]

I just bought the LEDs from the article and installed them. Couldn’t figure out why the tail lights were coming on with everything off. Turns out my brake light switch under the dash was bad. Not sure how long I was driving around without brake lights but I’m glad I changed the light bulbs and found the problem before I got a ticket. 

Edited March 18, 2019 by Bcoan55