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Discussion Starter · #1 ·
Hi so I have a 2004 PT Cruiser base model and I want to replace the cluster lights on it with a cool different color, I’m just not sure what size bulb to use! I’ve read online that it could be a T5 or T10, does anyone know which it is for sure? Thanks!
 

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1966 Crown Coupe, 2016 200 S AWD, 1962 Lark Daytona V8.
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They are PC74 lamps. There are colored LED versions available.

Rectangle Font Parallel Auto part Line art


Font Number Parallel


Wheel Tire Automotive lighting Automotive tire Light
 
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Special note - Keep the cluster upright as much as possible. If you do need to lay it flat, no more than 10 minutes. The fluid in the gauges has a tendency to migrate if not in the upright position.
 

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1966 Crown Coupe, 2016 200 S AWD, 1962 Lark Daytona V8.
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Agree. We were told not to place gauges 'face down' for too long as the viscous dampening fluid could leak out past the pointer shaft.
The fluid slows the magnetic gauge pointer movement. The gauge would still work, but it was annoying watching a gas gauge pointer swing all over the place with fuel sloshing in the tank.
 

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Gauges have fluid in them to damp the motion? When did that phase in, and does it apply to 2011-2012 Chrysler 200?
 

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Discussion Starter · #7 ·
Special note - Keep the cluster upright as much as possible. If you do need to lay it flat, no more than 10 minutes. The fluid in the gauges has a tendency to migrate if not in the upright position.
Ok that’s good to know! I don’t want to damage the cluster by changing the lights lol. Thanks!
 

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The damper fluid came in with the change from thermal/bimetal gauges to the magnetic gauges in the early '80's:

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Was this type of fluid used in all digital clusters from the 80s till now?
The fluid is to dampen a mechanical gauge. I doubt it is used in a digital cluster.
 
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