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2025 GMC SIERRA 2500HD
6.6L V8 L8T•RWD•AUTOMATIC•gas•turbo
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Repairs0Labor990Torque281Fluid18DTC4034Battery2Maintenance0Recalls0
Fluid · Transfer Case

Transfer Case

for 2025 GMC Sierra 2500HD 6.6L V8 L8T · RWD
Fluid Type
Autotrac II transfer case fluid
Spec: GM P/N 12378508
Capacity
2qt
1.89 L
Drain & Refill
2 qt
1.89 L
Data quality
Book-style estimate
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Notes

BorgWarner NVG 261XHD two-speed. Lifetime fill per GM

Other fluid systems on this vehicle

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