Date registered: Jan 2006
Vehicle: 73 280SE 4.5, 71 300SEL, 03 BMW Z4, 72 Fiat 850, 80 Triumph TR7, 85 Porsche 911
Location: DC Area
Mentioned: 1 Post(s)
Quoted: 97 Post(s)
Replacement LEDs - yes they're available. Go to eBay or Amazon and do a general search for the bulb code (should be printed on the thing)(or can be seen at Autozone, etc). You'll get a ton of suitable replacements. Expect to pay about $10-$14 per LED though. The local Autozone sells LEDs, but not for every application.
Note that LEDs may not be a suitable replacement for turn signals. Because they activate so quickly, the normal on-off period of time is completely skewed and the things blink much much faster. There are kits to overcome this though.