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Chevrolet Tahoe T1XX (5th Generation)
2021–2026 · GMT T1XX · suv
Fifth-generation Tahoe on the GMT T1XX platform (sibling to T1XX Silverado / Suburban / Yukon / Escalade). First Tahoe with independent rear multilink suspension. Engines: 5.3L L84 V8 (DFM), 6.2L L87 V8, and 3.0L LM2/LZ0 Duramax inline-six diesel. 10-speed automatic standard.
Watch out: Same 3.0L LM2 Duramax CP4.2 fuel pump failure risk as the Silverado T1XX — pump failure shrapnel can contaminate the entire fuel system on 2020-2022 builds; $10,000+ repair. NHTSA EA22-002 documents the pattern.
Full clubhouse — owner Garage Lineage, common problems, year-by-year notes, and product picks — is on the build list.
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