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Need Front-Side Marker Light Bulbs For 1992 Lexus Ls400


hzmonte
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I need replacement light bulbs for my front side marker lamps. The owners manual says those should be bulb number 159. However I visited Pepboys, Autozone, NAPA, OReily (in Los Angeles area) and none carries bulb number 159. Some conversion chart or on-line catalog says it should be 168. I know that's wrong because I pulled out my license plate light bulbs, which are 168, and they don't fit in the marker light sockets. So, where can I find bulb no. 159? Available in Lexus dealership only?

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If you are talking about the "city light" modules outboard of the headlights, then you want 168 bulbs - same ones as the license plate bulb. It's been over 10 years since I've owned a gen 1 LS400 but the "168" number is burned into my mind.

Look at the auto bulb guide at www.sylvania.com

I don't see anything close to a number like "159" bulbs used on a gen 1 LS400.

Could you have some aftermarket light modules that use different bulbs? Do they say "Toyota" or "Lexus" somewhere on the housing or lens?

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1. I do not know whether my lighting housing is aftermarket or not. All my lighting housings have the word "TOYOTA" engraved.

2. My owner manual clearly states that the type for marker lights is 159, and the door courtesy light is 194. The lighting guide given by Randy states that both the front marker lights and door courtesy lights is 194. I pulled out the front door courtesy light bulb and it is different from the (bad) marker light bulb that I have. And the 194 light bulb simply does not fit in the marker light connector.

3. I went to an auto parts store and the 194 light bulb they have is different from my marker light bulb.

4. The (bad) marker light bulb that I have has the word "Osram W171" on it.

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Does the side marker bulb look like this(149)? -> http://www.elightbulbs.com/GE-15731-149-Miniature-Automotive-Light-Bulb&source=GoogleBaseCSE?gclid=CI-wtP63kLwCFexFMgodJ0sAgw

Or does it look like this(194)? -> http://www.elightbulbs.com/Eiko-40427-194-Miniature-Automotive-Light-Bulb&source=GoogleBaseCSE?gclid=CIOm-7i4kLwCFepDMgodYWgAAQ

Being that the bulb numbers in question are 149 and 194, I am thinking someone, along the line of documentation, got dyslexic and swapped the 9 and 4. Or is it "dyslexus"? :whistles:

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I think I should not rely on the shape of the bad light bulbs I have now. After all, these light bulb may not be the right ones and that is why they burnt out. That said, they do have a "tip" at the top like the one here: http://ecom.sylvania.com/sylvaniab2b/b2b/catalogstart.do?search=catalog Click Miniature & Automotive - the last item on the left, then Automotive then Signal & Sidemarker And you'll see Type 194 as the sixth item. (They don't have Type 159, as you can see.) Interestingly, this Type 194 looks different from the one in http://www.elightbulbs.com/Eiko-40427-194-Miniature-Automotive-Light-Bulb&source=GoogleBaseCSE?gclid=CIOm-7i4kLwCFepDMgodYWgAAQ which does not have a tip. Does it make a difference?

On the other hand, I found a Type 159 at http://www.eiko-ltd.com/Products.aspx?ProductIndex=159 but it does not have a tip on the top. That's why I wonder whetehr the bad bulbs I have now are of the wrong type. The EIKO web site does not say how to order it.

Incidentally, Osram-Sylvania's web site is faulty. https://www.sylvania.com/en-us/applications/automotive-lighting-systems/Pages/lrgallbulbs.aspx?year=1992&qual=&model=1329&make=54 gives the wrong info: it says the marker light (and the license plate light) is Type 168; as I said, 168 does not fit the marker light connector. And when one goes to https://www.sylvania.com/en-us/applications/automotive-lighting-systems/Pages/lrgmain.aspx and select 1992-Lexus-LS400-

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I do not know where I came up with bulb 149 (should have been 159). Anyway, if it were mine, I would take the old bulb into a store and try to match it based upon socket configuration and forget the number for now. You might also consider replacing with an LED bulb.

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