Fluid · A/C Refrigerant
A/C Refrigerant
for 2021 GMC Yukon 3.0L I6 Duramax Diesel · 4WD
Fluid Type
R-1234yf
Data quality
✓ Verified
Cross-checked against OEM or multiple independent sources.
Notes
With rear A/C (dual system): 42 oz total. GMT T1XX platform; dual A/C charge for models with rear system Always verify against the underhood charge label when legible — charge weight is a fill-to spec, not an estimate.