Chevrolet Suburban Turn Signal Bulb Size

Chevrolet Suburban front outer turn signal bulbs measure 12961, while front turn signal bulbs are sized 7444NA, 7440NA, or 3157NA, and rear turn signal bulbs are sized 7440NA, 7440, or 3057. The replacement chart covers 1950 through 2023 vehicle 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.

Front Outer Turn Signal

YearsBulb Size
2005-200612961 (Side, 1500 only)
2000-200412961 (Side)

Front Turn Signal

YearsBulb Size
2021-20237444NA
2015-20207440NA
2010-20143157NA
20095702AK (1500 only)
4157NA (2500 only)
20084157NA
20074157NA (1500 only)
5702AK (2500 only)
20065702AK
2001-20054157NA
20002357NA (Early Model)
4157NA (Late Model, 1500 only)
5702AK (Late Model, 2500 only)
1993-19992357NA
19923057NA (With Halogen Capsule Headlamps)
2057 (With Sealed Beam Headlamps)
1989-19913057NA
1983-19882057NA
19821034NA
19811157NA
1979-19801034NA
1966-1978198
19651156
1964199
1962-19631034
1960-19611156
1956-19571073
1950-19551154

Rear Turn Signal

YearsBulb Size
2021-20237440NA
2015-20207440
2007-20143057
2001-20063157
20003057 (Early Model)
3157 (Late Model)
1993-19993057
19923057 (With Halogen Capsule Headlamps)
2057 (With Sealed Beam Headlamps)
1983-19912057
1979-19821157
1972-1978198
1970-1971199
19691156
1966-1968198
1965199
19641156
1962-19631034
19611156
19601073
1956-19571073
1950-19551154

Bulb Specifications

Description Bulb Size
Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W.12961
ANSI standard (US & Canada). Dual-filament wedge bulb (T20), natural amber glass. 12V, 21W/5W.7444NA
ANSI standard (US & Canada). Single-filament wedge bulb (T20), natural amber glass. 12V, 21W.7440NA
ANSI standard (US & Canada). Dual-filament wedge bulb (T25), natural amber glass. 12V, 27W/7W.3157NA
Sylvania part number for a coated variant of the ANSI 3157 bulb. Dual-filament wedge bulb (T25), amber coating. 12V, 27W/7W.5702AK
ANSI standard (US & Canada). Dual-filament wedge bulb (T25), natural amber glass. 12V, 27W/7W.4157NA
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base, natural amber glass. 12V, 26.9W/8W.2357NA
ANSI standard (US & Canada). Dual-filament wedge bulb (T25), natural amber glass. 12V, 27W/7W.3057NA
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. Brighter variant of 1157. 12V, 26.9W/8W.2057
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base, natural amber glass. Brighter variant of 1157. 12V, 26.9W/8W.2057NA
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base, natural amber glass. Variant of 1157. 12V, 21/5W.1034NA
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base, natural amber glass. 12V, 21W/5W.1157NA
ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 2W.198
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W.1156
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Variant of 1156. 12V, 21W.199
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. Variant of 1157. 12V, 21/5W.1034
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 13W.1073
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. Older variant of 1157. 6V/12V.1154
ANSI standard (US & Canada). Single-filament wedge bulb (T20). 12V, 21W.7440
ANSI standard (US & Canada). Dual-filament wedge bulb (T25). 12V, 27W/7W.3057
ANSI standard (US & Canada). Dual-filament wedge bulb (T25). 12V, 27W/7W.3157
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. 12V, 21W/5W.1157

Other Locations