The Mitsubishi Endeavor front turn signal requires either 1157NA or 1034NA bulb size, while the rear turn signal uses 1156NA bulb size. The replacement chart covers vehicle production spanning 2004 through 2011.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The rear turn signal position on the Mitsubishi Endeavor uses the 1156NA bulb across all listed model years from 2004-2011, making it the most consistent fitment in these specifications.
The 1156NA is a single-filament bulb rated at 12V and 21W, fitted with a BA15s bayonet base and natural amber glass, conforming to ANSI standards for the US and Canadian markets.
The front turn signal position alternates between two bulb types across model years, with the 1157NA specified for 2005, 2008, and 2011, and the 1034NA specified for 2004, 2006-2007, and 2010.
Both the 1157NA and 1034NA are dual-filament bulbs rated at 12V with a 21W/5W output, and both use a BAY15d bayonet base with natural amber glass.
The BAY15d base used by the 1157NA and 1034NA differs from the BA15s base used by the 1156NA. The BAY15d has offset pins to accommodate dual-filament operation, while the BA15s has a single pin alignment suited to single-filament use. These two base types are not interchangeable.
The 1034NA is described as a variant of the 1157NA. Despite sharing the same base type, voltage, and wattage ratings, they carry distinct ANSI designations and are listed as separate fitments across different model years of the Endeavor.
The natural amber glass on all three bulb types produces the amber-colored signal output directly from the bulb itself, rather than relying on a colored lens to filter a clear light source.
The front turn signal position on the Mitsubishi Endeavor does not follow a consistent bulb type across consecutive model years, meaning the correct bulb designation is specific to each individual model year rather than applicable to a broader range.