Here I will attempt to document and illustrate the bulbs that I believe are the after market replacements for the eight different bulb part numbers present in the instruments of the 2003-2006 Element. I'm sure some are also applicable to other years, so I'll give the Honda P/N's as well. Everyone seems to complain about the main cluster the most, so I'll start there.
Illustrations #1 and #2 are Honda P/N's 35505-SCV-A01 and 35505-SCV-A11 respectively. There are many posts throughout this forum that state that the replacement bulb is #74. When I tried the #74, it didn't fit. I found that the #2721 fit correctly and was brighter.
The Switches.
Illustrations #2 and #3 are Honda P/N's 35850-SCV-A01 and 35851-SCV-A01 respectively. They are simply a #7219 with a condom (colored filter), wire lead, "grain of wheat" bulb commonly found at Radio Shack as 272-1092. You will need to wrap the leads through the wedge, and remove and reuse the colored filter on the new bulb.
Illustration #4 is Honda P/N 35871-S3N-901. Unfortunately, it is a bulb that requires some leg work to procure. Bulb #8640, with a National Stock Number 6240-00-570-9884, can be procured online, or at an electronics parts house such as Ford Electronics here in SoCal. Being an NSN part means they will be manufactured for many, many years to support military equipment throughout the world. I have some extra #8640's if you're really in a pinch.
The Fog Switch.
No P/N given for the bulb. However, it is the same as the Cruise Switch (condom included), #7219. See Above.
The Gear Selector. (Automatic Only)
Illustration #1 is Honda P/N 35505-692-003
There seems to be some disagreement about the T1.5 glass wedge bulb. See Above. I found the #2721 works for me. Others have found that the #74 also works.
The Heater Control.
Once again, you will need to wrap the leads through the wedge.
I haven't pulled the radio yet. But when I have a bulb outage, I'll report on that too.
There are also bulbs in the AUTO and MIRROR switches on the driver's door. They are soldered in place. I'm not that desperate yet.
So, there it is. I wish this information will save some of you from a costly trip to the dealer to change a $.99 bulb.

Illustrations #1 and #2 are Honda P/N's 35505-SCV-A01 and 35505-SCV-A11 respectively. There are many posts throughout this forum that state that the replacement bulb is #74. When I tried the #74, it didn't fit. I found that the #2721 fit correctly and was brighter.
The Switches.

Illustrations #2 and #3 are Honda P/N's 35850-SCV-A01 and 35851-SCV-A01 respectively. They are simply a #7219 with a condom (colored filter), wire lead, "grain of wheat" bulb commonly found at Radio Shack as 272-1092. You will need to wrap the leads through the wedge, and remove and reuse the colored filter on the new bulb.
Illustration #4 is Honda P/N 35871-S3N-901. Unfortunately, it is a bulb that requires some leg work to procure. Bulb #8640, with a National Stock Number 6240-00-570-9884, can be procured online, or at an electronics parts house such as Ford Electronics here in SoCal. Being an NSN part means they will be manufactured for many, many years to support military equipment throughout the world. I have some extra #8640's if you're really in a pinch.
The Fog Switch.

No P/N given for the bulb. However, it is the same as the Cruise Switch (condom included), #7219. See Above.
The Gear Selector. (Automatic Only)

Illustration #1 is Honda P/N 35505-692-003

There seems to be some disagreement about the T1.5 glass wedge bulb. See Above. I found the #2721 works for me. Others have found that the #74 also works.
The Heater Control.

Once again, you will need to wrap the leads through the wedge.

I haven't pulled the radio yet. But when I have a bulb outage, I'll report on that too.
There are also bulbs in the AUTO and MIRROR switches on the driver's door. They are soldered in place. I'm not that desperate yet.
So, there it is. I wish this information will save some of you from a costly trip to the dealer to change a $.99 bulb.