The model code reference "B" when placed between the horsepower and shaft length indicates a new model that has replaced a previous model.  For example, The new F250BTXR replaced the previous model F250TXR.

THIS KIT IS FOR MODELS CODED:

With identifying Primary ID#s 6P2-1027095 & Up*

• F250BTUR (0508)
• F250BTXR (0508)
  
• F250BTUR (0409)
• F250BTXR (0409)

*Your Primary ID Number will fall into this range of numbers.

(CLICK HERE FOR MORE INFORMATION ON YAMAHA MODEL CODING)