South Western Model Company’s F Unit roof top coils “Freight Pilot” has been added to your cart. View cart $6.00 South Western Model Company's F Unit roof top coils quantity Add to cart SKU: DHRTC Category: Plastic Parts Related products A Unit, shell only $25.00 Add to cart Winterization Hatch & Late Style Steam Generator Vent $8.00 Add to cart Exhaust Stacks (4) and Steam Generator Vents (early) $7.00 $7.00 Add to cart Pilot Beam Bumper and Late Style Water Filler Hatches $6.00 Add to cart