Union Pacific 3900 Series 4-6-6-4 Challenger drawings, engine only- Pilot – Pilot & Bumper Integral (Pilot casting) (3,4,5)
		SKU/Drawing Number: #624-CA-33571 C
			| Wheel Arrangement: | 4-6-6-4 | 
| Scale to 1 ft.: | 2” | 
| DWG. Size (in): | 30x54 | 
| Drawing Title: | Pilot – Pilot & Bumper Integral (Pilot casting) (3,4,5) |