Details West Parts List by Category 
Headlights, Ditch Lights and Headlight Sets:
HS-100 SP Headlight Set:
1st. Gen. Hood Units, Single and "Mars"
Group
HS-101 SP Headlight Set:
1st. Gen. Hood Units, Double and "Mars"
Group
HS-102 SP Headlight Set:
1st. Gen. Hood Units, Single and "Pyle"
Group
HS-103 SP Headlight Set:
1st. Gen. Hood Units, Double and "Pyle"
Group
HS-104 SP Headlight Set:
SD-7; SD-9; Single and "Mars" Group
HS-105 SP Headlight Set:
SD-7, SD-9; Double and "Mars" Group
HL-108 SP Headlight:
"Barrel" type; Bolted Face 1st Gen. GP's
& SD's
HL-109 SP Headlight:
"Barrel" type; Hinged Face 1st Gen. GP's
& SD's
HL-112 Headlight:
"MARS" Single Light ignal Light
HL 113 Headlight:
"MARS" Twin Signal Light
HL-114 Headlight:
"PYLE" Type Sealed-beam Early
HL-115 Headlight:
"PYLE" Gyralight
HL-116 Headlight:
"PYLE" Twin Gyralight
HL-117 Headlight:
"PYLE" Twin Sealed-beam Late
HL-133 Headlight:
"PYLE" 'Barrel' Type Applied to GP-&'s
and 9's of Erie, W.P., and C.N.
HL-137 Headlight:
"MARS" Twin Signal Light Flush Mount 
Type Applied to Low Hood of E.M.D. 2nd
Generation Hood Units
HL-138 Headlight:
"PYLE" Twin Gyralight Flush Mount Type
Applied to Low Hood of E.M.D. 2nd 
Generation Hood Units
HL-148 Headlight:
"PYLE" Twin Gyralight Flush Mount Type
HL-153 Headlight:
"Oscitrol" Type Applied to Amtrak E-Units
and to I.C.G. Rebuilt Hood Units
BL-162 Back-up Light:
"PYLE" Type Single Sealed-beam
Commonly Found on E and F-Units
HL-178 SP Headlight Set:
Rear mount, 2nd Gen. EMD's
HL-200 SP Nose Headlight:
DL-228 Ditch Lights:
 w/Lenses (Pilot-Top Mount) "EMD"
DL-229 Ditch Lights: 
w/Lenses (Pilot-End Mount) "GE"
DL-243 Ditch Lights :
w/Platforms & Lenses
HL-290 Headlight:
"Mars" Twin Signal Light Nose Type, 
D&RGW, Others
HL-291 Headlight:
"Gyralight" Twin Signal Light Cab Type, Sp,
CB&Q, Others
DL-301 Ditch Lights:
Late Style w/ Lenses