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GMC Yukon XL T1XX (5th Generation)

2021–2026 · GMT T1XX · suv

Fifth-generation Yukon XL on the T1XX platform (sibling to T1XX Suburban / Tahoe / Yukon / Escalade ESV). First Yukon XL with independent rear multilink suspension. Engines: 5.3L L84 V8 (DFM), 6.2L L87 V8, 3.0L LM2/LZ0 Duramax inline-six diesel. 10-speed automatic. AT4 off-road and Denali Ultimate trims.

Watch out: 3.0L LM2 Duramax CP4.2 fuel pump failure on 2020-2022 builds — pump shrapnel contaminates the entire fuel system; $10,000+ repair. NHTSA EA22-002 documents the pattern.