Fluid · Transfer Case
Transfer Case
for 2023 GMC Sierra 1500 5.3L V8 · 4WD
Fluid Type
AutoTrac II Transfer Case Fluid
Spec: GM Part No. 12378508 or equivalent
Capacity
2qt
1.89 L
Drain & Refill
2 qt
1.89 L
Change Interval
50,000 mi
80,450 km
Data quality
Book-style estimate
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Notes
MP1626 2-speed electronic transfer case on 4WD models.