Cadillac CTS Turn Signal Bulb Size

Cadillac CTS front inner turn signal bulb size 3157, front outer turn signal bulb size 12961, front turn signal bulb sizes 12188, 12272NA, and 3157, plus rear turn signal bulb size 3157. The replacement chart covers vehicle production years 2003 through 2013 with corresponding bulb specifications.

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

Front Inner Turn Signal

YearsUS TypeEU TypeShop
2003-20073157P27/7WCheck Price

Front Outer Turn Signal

YearsBulb TypeShop
2003-200712961Check Price

Front Turn Signal

If US Type and EU Type show the same value, a direct cross-reference for this bulb is not available or the data is insufficient.

YearsUS TypeEU TypeShop
2008-201312272NA (With HID Headlamps)12272NACheck Price
12188 (With Halogen Capsule Headlamps)12188Check Price
2003-20073157 (Front)P27/7WCheck Price
12961 (Side)12961Check Price

Rear Turn Signal

YearsUS TypeEU TypeShop
2003-20073157P27/7WCheck Price

Bulb Specifications

Description Type Shop
ANSI standard (US & Canada). Dual-filament wedge bulb (T25). 12V, 27W/7W.3157Check Price
Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W.12961Check Price
OEM part number. Natural amber glass variant. 12V.12272NACheck Price
Philips part number. Halogen bulb, specialty application. 12V.12188Check Price

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