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Old 03-30-2014, 06:43 PM   #1
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Stupid question

Ok..I know this is a stupid question but I want to replace the lamps (bulbs) but I can not find the numbers to replace with. only number stamped on it is 12v21cp?
PS. the outside fixture said use type 9 something but the rest has worn off on the ones that I can read anything at all.
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Old 03-30-2014, 06:50 PM   #2
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There are no stupid questions. Stupid answers, yes.
Easiest would be to take the lamps you need to replace to your local RV parts store and they should be able to fix you up with the proper replacements.
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Old 03-30-2014, 06:50 PM   #3
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Does it look like this 1141 Lamp Mini Light Bulb MIN10161?
Batteries Plus Bulbs has a useful bulb finder.
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Old 03-30-2014, 07:00 PM   #4
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If it were me, I would take the RV Rig info and make the RV dealer and or parts dealer like C World tell me what ones i need. You could take in one of every bulb you want to change out and let them do the work or at the very least tell you what part numbers they are and then maybe see if Wally World sells them!
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Old 03-30-2014, 07:01 PM   #5
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If you find a picture online, I bet it'll have a number with it. Or I can see a pic and tell you a number.
List of automotive light bulb types - Wikipedia, the free encyclopedia
Here's some.

I don't know about others, but just going off RV info doesn't help me, especially since I haven't owned or worked in every single one often enough to memorize the bulbs used.
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Old 03-30-2014, 07:17 PM   #6
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Thanks guys. CW was on my list for some time this week. just anxious start getting the rig ready to roll this season. wanted to start ordering replacement LEDs online.
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Old 03-30-2014, 07:33 PM   #7
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Before you rush to CW for light bulbs, check price. Needed a 18" florsencent bulb, $14, lowes was only $5. Use the CW to identify the bulbs if needed, then save some bucks and buy another place.
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Old 03-30-2014, 07:45 PM   #8
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Here is a bulb chart that should identify anything you have.

Automotive Light Bulbs and Light Bulb Sockets

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Old 03-30-2014, 07:46 PM   #9
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Quote:
Originally Posted by no3putt View Post
Before you rush to CW for light bulbs, check price. Needed a 18" florsencent bulb, $14, lowes was only $5. Use the CW to identify the bulbs if needed, then save some bucks and buy another place.
Basically, that advice applies to just about anything CW handles. Figure out what you want, then buy it almost anywhere else for less money. Sometimes a lot less.
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Old 03-30-2014, 07:48 PM   #10
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Quote:
Originally Posted by no3putt View Post
Before you rush to CW for light bulbs, check price. Needed a 18" florsencent bulb, $14, lowes was only $5. Use the CW to identify the bulbs if needed, then save some bucks and buy another place.
Just what I was going to do. I woud like to support CW but I find their prices so much higher than what we would pay elsewhere just hard to keep buying there. And to honest the staff got less and less helpful (at the Denton Tx store anyway) and more where they will talk down to you.
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Old 03-30-2014, 08:00 PM   #11
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Sometimes the bulbs housing will have a small placard or ink stamp either inside or outside with the bulbs type printed on it.
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Old 03-30-2014, 09:12 PM   #12
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If it is 12 volt it is likely a standard automotive bulb.

Take it to auto zone napa or any other such place.

Then write down what they are
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Old 03-30-2014, 09:28 PM   #13
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Quote:
Originally Posted by NorthTexas View Post
Ok..I know this is a stupid question but I want to replace the lamps (bulbs) but I can not find the numbers to replace with. only number stamped on it is 12v21cp? It's a 12 volt bulb producing 21 Candle Power
PS. the outside fixture said use type 9 something but the rest has worn off on the ones that I can read anything at all.
It sounds like a 921 bulb which is a wedge base 12v, 21CP bulb.

Hope all this helps you.
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Old 03-31-2014, 08:20 AM   #14
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Take one of the lamps you need to replace and go to any of the following:
Auto Zone
Discount auto
Pep Boys
______Auto parts (fill in the blank)

And find the lamp bulb display.. look for one the same size and shape and read the card 12 volt, 21 candlepower is what you are looking for.

21 cp is a 1141 by the way if it's the large bayonet base. You will find a photo of one #1141 MINIATURE BULB BA15S BASE, S8 SC BAY 12.8V 1.44A 21CP , 1141, #1141, #1141 MINIATURE, #1141 BULB, #1141 LAMP, EIKO#40176, ML18WB2C,BULBO,BOMBILLA,BIRNE,AMPOULE
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