The Plymouth Cambridge front and rear turn signal bulbs both utilize a 1154 bulb size. This replacement chart covers vehicle production spanning 1951 to 1953.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The 1154 bulb is the sole turn signal bulb type listed for the Plymouth Cambridge across all documented model years and positions.
The 1154 is an ANSI-standardized bulb recognized in both the United States and Canada.
It is a dual-filament bulb, meaning it supports two separate brightness levels within a single unit, a construction commonly used to serve both running light and turn signal functions simultaneously.
The 1154 uses a BAY15d bayonet base, a two-pin offset bayonet mount that physically prevents incorrect insertion by positioning its two pins at different heights.
The 1154 is described as an older variant of the 1157 bulb, indicating the two share a related design lineage, though they are not confirmed as interchangeable within these specifications.
The 1154 is rated for both 6V and 12V electrical systems, reflecting the transitional period in automotive electrics during the early 1950s when some vehicles still used 6-volt systems.
The Plymouth Cambridge (1951-1953) uses the 1154 bulb in both the front and rear turn signal positions, with no variation across those model years.