Kawasaki KAF1000 Mule PRO-DX Diesel Back Up Light Bulb Size

The Kawasaki KAF1000 Mule PRO-DX Diesel back up light requires a bulb size of 12821 for the lighting assembly. Data for the bulb size covers the range from 2016 to 2017.

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

Years	Bulb Type	Shop
2016-2018	12821	Check Price

Bulb Specifications

Description	Type	Shop
Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W.	12821	Check Price

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Additional Notes

The Kawasaki KAF1000 Mule PRO-DX Diesel uses the 12821 bulb for the back up light across the 2016-2018 model years.
The 12821 is a Philips part number designating a miniature wedge bulb in the T10 form factor, which refers to the tubular glass envelope size of the lamp.
The bulb operates on a 12-volt electrical system and draws 5 watts, placing it in the low-wattage range typical of auxiliary and signal lighting applications.
The W2.1x9.5d base type is a wedge-style connector, meaning the bulb is held in place by the socket walls rather than by a bayonet or screw mechanism, and the figures in the base designation refer to the contact width and pin spacing in millimeters.
The T10 wedge format is a widely produced bulb type, and aftermarket equivalents from other manufacturers are commonly available under different part numbers while sharing the same base and electrical ratings.
When substituting the 12821 with an equivalent, the voltage rating of 12V and wattage of 5W, along with the W2.1x9.5d wedge base, must all match to ensure proper fitment and circuit compatibility.