Mercedes-Benz 300D Automatic Transmission Indicator Bulb Size

The Mercedes-Benz 300D automatic transmission indicator utilizes 2721 and SE1274 bulb sizes for illumination. Available data for the specified components covers the range from 1977 through 1993.

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

Bulb Size by Year Range

YearsBulb TypeShop
1990-19932721Check Price
1977-1985SE1274Check Price

Bulb Specifications

Description Type Shop
ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 2W.2721Check Price
Sylvania/Eiko part number. Specialty instrument panel bulb. 12V.SE1274Check Price

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