Yes, it is. You can get it at Advance Auto Parts for just under $17 (dealer is over $40 and doesn't come with with bushing like at Advance... both appear identical). Word of advice as I just replaced my pulley on my '95 4.0... get a 99" serpentine belt instead of the specified 96.8"... also watch the power steering adjuster bolt as it can puncture the low-pressure return hose if you back out the adjuster too far. Don't ask me how I know that
Also, you will need a bolt AND nut that fits the bushing without too much slack. I forget how long the bolt is, but guessing around 4".