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Author Topic:   Trailer Lights
scottfarm posted 03-01-2002 07:41 AM ET (US)   Profile for scottfarm   Send Email to scottfarm  
My left trailer light is dimmer than the right. What causes this. I have a 1995 shorelander trailer. Can you buy replacement guts for these lights. The lights are mounted on a flat plate that slides in from the bottom.
jimh posted 03-01-2002 08:27 AM ET (US)     Profile for jimh  Send Email to jimh     
Differences in light output could be caused by:

--different bulbs, that is different numbered bulbs having different characteristics.

--different bulbs, that is same numbered bulbs having different characteristics. The lamps were probably made in Red China at a prison labor camp, not exactly ISO-9001 qualified.

--one of the bulbs having a partially damaged filament. For the moment, it is burning brighter.

--the brighter bulb being supplied more voltage due to problems in the lamp fixture, the trailer wiring, the interconnection to your tow vehicle, problems in the wiring in the tow vehicle, problems in the lighting circuit of the tow vehicle.

--the lens of the lamp fixture being dirty.

flwhaler posted 03-01-2002 09:09 AM ET (US)     Profile for flwhaler  Send Email to flwhaler     
Yes you can get replacement guts for you shorelandr.


scottfarm posted 03-01-2002 09:52 AM ET (US)     Profile for scottfarm  Send Email to scottfarm     
Flywhaler, where to order the light guts from. I've checked all the wiring and tried two different bulbs. Probably the light fixtures are the problem.
Landlocked posted 03-01-2002 10:08 AM ET (US)     Profile for Landlocked  Send Email to Landlocked     

Check to be sure you have a good ground on the weak light. I've had similar problems. A little sanding/filing at the contact point where the trailer light gets it ground solved the problem.


scottfarm posted 03-01-2002 11:34 AM ET (US)     Profile for scottfarm  Send Email to scottfarm     
Rusted ground on fixture was the problem. Thanks a million landlocked. Still would like to know where I could order the shorelander trailer light guts online. Mine have been dipped into saltwater too many times.
triblet posted 03-01-2002 02:22 PM ET (US)     Profile for triblet  Send Email to triblet     
If the lights are the same as my '96ish
Shorlandr', you can get them from West Marine's
catalog. I found the maker's name on the lights,
did a bunch of web chasing, and finally found
them in West's paper catalog. I can post the
p/ns (different L/R) tonight.

BTW, when you reinstall them, use SS carriage
bolts (West store) and a little DuPont #111
or #4 on the contacts and bulb. They were last
a LOT better.


Tom W Clark posted 03-01-2002 02:47 PM ET (US)     Profile for Tom W Clark  Send Email to Tom W Clark     
The lights scottfarm describes sound like Dry Launch lights by Sierra Products, Inc.

These lights are used by many manufacturers and are the best for boat trailers in my experience.

They come in round or rectangular, black or white as well as a slightly different style of rectangular and rigged for either 80" or less trailers or greater than 80" wide trailers. By far the most common version of these lights are the white, greater than 80" type (these have the clearance lights on the side and are thus left and right hand models. They can be used on smaller trailers as well so why bother with the others?).

You can buy just the "guts", but it hardly seems worth it. I have seen the "guts" for sale for $12 but you can just buy the whole light for $15 from Boat US. West Marine only has the white models, and they cost $20. If you do a Google search for Dry Launch Trailer Lights, you will get dozens of retailers that will sell them to you. Good luck.

p.s. Chucks advice about the s.s. carriage bolts is very good advice indeed.

triblet posted 03-01-2002 08:52 PM ET (US)     Profile for triblet  Send Email to triblet     
Dry Launch p/n SP7RBW, West p/n 315143, Page
744 in the 2002 West catalog. This a
reversible model -- you do a little to
convert it from left to right. They are
also availble in left and right versions.


scottfarm posted 03-01-2002 09:22 PM ET (US)     Profile for scottfarm  Send Email to scottfarm     
Thanks a million guys. This is a first class site Jimh with first class members.
PMUCCIOLO posted 03-06-2002 11:59 PM ET (US)     Profile for PMUCCIOLO    
Has anyone used the "new" (that's how they're advertised) LED lights for the trailer? What are the advantages/disadvantages of these?
triblet posted 03-07-2002 03:21 PM ET (US)     Profile for triblet  Send Email to triblet     
I keep thinking about the LED lights, but I can't
find an LED taillight that has a builtin license
plate light like the incandescants. I do use
some yellow LED side marker lights.


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