The second-generation Nissan Frontier debuted in North America for the 2005 model year. Known internally as the D40, it stayed in production through 2021. The third-generation Frontier arrived for 2022, but its engine had already debuted in the outgoing truck.
Three engines span these two generations. The 2.5-liter four-cylinder and 4.0-liter V-6 were offered through 2019. A new 3.8-liter V-6 and nine-speed automatic became standard for 2020, then carried into the redesigned 2022 truck.
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