The Yamaha VMX1700 V-Max front turn signal requires a P21/5W bulb size while the rear turn signal uses a P21W bulb size. Replacement specifications across the 2009-2020 production years are detailed in the accompanying chart.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Yamaha VMX1700 V-Max uses two distinct bulb types across its front and rear turn signal positions for the 2009-2020 model years.
The front turn signal on the VMX1700 V-Max takes a P21/5W bulb across all 2009-2020 model years.
The P21/5W is a dual-filament bulb operating at 12V with a 21W main filament and a 5W secondary filament, mounted on a BAY15d bayonet base.
The BAY15d base features two offset pins at different heights, a design that prevents incorrect insertion and ensures the two filaments are connected to the correct circuits.
The rear turn signal on the VMX1700 V-Max takes a P21W bulb across all 2009-2020 model years.
The P21W is a single-filament bulb rated at 12V and 21W, mounted on a BA15s bayonet base with a single contact pin.
Because the front P21/5W uses a BAY15d base and the rear P21W uses a BA15s base, the two bulb types are not interchangeable with each other.
Both the P21/5W and P21W conform to ECE standards, indicating they are approved for road use in Europe and other markets that follow ECE lighting regulations.
The shared 21W filament output between the P21/5W and P21W means both positions produce the same signalling brightness, despite differing in base type and filament count.
The P21/5W front bulb's secondary 5W filament is typically wired to serve a secondary function such as a parking or position light, in addition to the primary turn signal circuit.