GMC Sierra IV (K2XX) gallery (2013–2019)
Fourth-generation Sierra introducing EcoTec3 direct-injected engines and a high-strength steel frame.
All photos
274
I (GMT400)
0
1988–1999
II (GMT800)
2
1998–2006
III (GMT900)
54
2006–2013
IV (K2XX)
165
2013–2019
V (T1XX)
53
2018
The fourth-generation truck rode on the K2XX platform, utilizing roll-formed high-strength steel in the frame and cargo bed. It was powered by a new EcoTec3 engine family featuring direct fuel injection, variable valve timing, and cylinder deactivation. Cabin quietness reached SUV levels thanks to triple-sealed inlaid doors and active noise cancellation. Advanced IntelliLink infotainment systems and active safety suites became widely available.