Got a check engine light or failing emissions test on your 2002-2004 Nissan Frontier or Xterra with the 3.3L V6 engine? This right-side catalytic converter is a direct replacement for OEM numbers 14002-9S200, 674818, and 641243. It's designed for the naturally aspirated V6 (not supercharged). Please note: this part is NOT legal for sale or use in California, New York, Maine, or Colorado due to emissions regulations. For other states, it can be a cost-effective solution to get your truck back on the road and running clean. Easy bolt-on installation if you're handy, or take it to your mechanic. Always verify your engine and exact model year before ordering!