GMC C7000 Headlight Bulb Size

GMC C7000 headlight bulbs utilize H6054, H5001, and H6024 sizes for high beam applications and H6054, H5006, and H6024 sizes for low beam applications. The replacement chart covers 1979 to 1990 production years with corresponding bulb size specifications.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

High Beam Headlight

YearsBulb TypeShop
1989-1990H6054Check Price
H5001 (Tiltmaster)Check Price
1984-1988H5001 (Tiltmaster)Check Price
H6054 (With 2 Rectangular Headlamps)Check Price
H6024 (With 2 Round Headlamps)Check Price
H4651 (With 4 Rectangular Headlamps)Check Price
1979-1983H6054 (With 2 Rectangular Headlamps)Check Price
H6024 (With 2 Round Headlamps)Check Price
H4651 (With 4 Rectangular Headlamps)Check Price

Low Beam Headlight

YearsBulb TypeShop
1989-1990H6054Check Price
H5006 (Tiltmaster)Check Price
1984-1988H5006 (Tiltmaster)Check Price
H6054 (With 2 Rectangular Headlamps)Check Price
H6024 (With 2 Round Headlamps)Check Price
H4656 (With 4 Rectangular Headlamps)Check Price
1979-1983H6054 (With 2 Rectangular Headlamps)Check Price
H6024 (With 2 Round Headlamps)Check Price
H4656 (With 4 Rectangular Headlamps)Check Price

Bulb Specifications

Description Type Shop
ANSI standard (US & Canada). 5x7-inch rectangular sealed beam unit. Not a replaceable bulb — the entire unit is replaced. 12V.H6054Check Price
ANSI standard (US & Canada). 4-inch square sealed beam unit. Not a replaceable bulb — the entire unit is replaced. 12V.H5001Check Price
ANSI standard (US & Canada). 7-inch round sealed beam unit. Not a replaceable bulb — the entire unit is replaced. 12V.H6024Check Price
ANSI standard (US & Canada). 4x6-inch rectangular sealed beam unit. Not a replaceable bulb — the entire unit is replaced. 12V.H4651Check Price
ANSI standard (US & Canada). 5.75-inch round sealed beam unit. Not a replaceable bulb — the entire unit is replaced. 12V.H5006Check Price
ANSI standard (US & Canada). 4x6-inch rectangular sealed beam unit. Not a replaceable bulb — the entire unit is replaced. 12V.H4656Check Price

Other Locations

Additional Notes