Peterbilt 579 - Bulb Specifications

5
ELECTRICAL
Vocational - Headlight Replacement
Turn the bulb lock ring
counterclockwise and remove
the bulb. Do not allow the glass of
the new headlamp bulb to come into
contact with anything. The glass could
become contaminated and cause bulb
failure. Reassemble in reverse order.
Headlight Aiming
Bulb Specications
The headlights were properly
aimed at the factory to meet safety
specications. If the headlights need to
be adjusted, please have an authorized
dealership aim the headlights.
Bulb Location
Type of Bulb
Low Beam
Halogen
H11-LL (SAE), H7
(ECE) (long life
version not required)
Low Beam
HID
D1-S
High Beam
Halogen
HB3A – LL (long life
version not required)
Daytime Running
Lamp/ Position
Lamp/Turn Signal/
Side Marker
4157K (SAE),
3157K
(ECE)
Rear tail
light/ Turn
Signal
Not applicable – LED
lighting
Interior
map/dome/indirect
light
Not applicable – LED
lighting
5-78 Y53-6047–2C (04/13)