According to the Newmar parts site:
LIGHT FOG 07 EXDP
Vendor Part # - 74211
PART #83469 DISC - N/A
UNIT #800946 & 800947 USED V.P. #74210
So it looks like it's a Hella 74211 unless you have coach # 800946 or 800947, in which case it's 74210.
2008 King Aire 4562, Spartan K3(GT) w/ Cummins ISX 600
2014 Jeep Grand Cherokee Overland 5.7L V8 Hemi w/ Blue Ox Aventa LX Tow Bar and baseplate, SMI Air Force One brake