GMC

Sierra 1500

Full-Size Truck

4 Generations

71 Engines Rated

13,208 Total Complaints

Generation Timeline

Years	Generation	Engines	Complaints	Best Engine
2000-2006	GMT800	26	3,799	LY7 ✅ Recommended (4.9)	View →
2007-2013	GMT900	23	3,478	L18 ✅ Recommended (4.9)	View →
2014-2018	K2XX	13	2,421	LLT ✅ Recommended (4.9)	View →
2019-2025	T1XX	9	3,510	LV3 ✅ Recommended (4.4)	View →

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