Mack RD Instrument Panel Bulb Size

The Mack RD instrument panel requires 3 distinct bulb sizes: 57, 194, and 161, with each size serving specific lighting functions within the dashboard assembly. A replacement chart documents bulb size specifications across the 1981 to 1997 production range for this vehicle model.

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

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
1996-19975757Check Price
1993-1995194W5WCheck Price
19925757Check Price
1991161161Check Price
1990194W5WCheck Price
19895757Check Price
1988161161Check Price
19875757Check Price
1986194W5WCheck Price
1985161161Check Price
1981-1984194W5WCheck Price

Bulb Specifications

Description Type Shop
ANSI standard (US & Canada). Single-filament bulb with BA9s base. 12V, 1W.57Check Price
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W.194Check Price
ECE standard (Europe & worldwide). Single-filament signalling bulb with W2.1x9.5d wedge base. 12V, 5W.W5WCheck Price
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 1W.161Check Price

Other Locations