A little poking on their site says 4410's. They link to the sylvania site and at least on the 2003 ho they say the dome replacement is a 212-2 which their chart says is 4410. If it's anything like mine it won't look anything like the bulb you'll pull out. Mine had looped wires on each end instead of metal cones. But when I put in the 212-2 it fit just fine. I think I ened up bending the prongs a little just to make it grab a little tighter so I felt better...
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