Fluid · Coolant
Coolant
for 2005 GMC Sierra 1500 4.3L V6 Vortec · 4WD
Fluid Type
Dexcool 50/50 orange
Spec: GM 6277M or equivalent
Capacity
13qt
12.3 L
Drain & Refill
11 qt
10.41 L
Change Interval
150,000 mi
241,350 km
Data quality
Book-style estimate
Not yet expert-verified. Have the real number? Correct it below — takes 30 seconds.
Notes
Lower capacity for V6. GM Dexcool extended life coolant. Initial fill good for 5 years/150k miles
As an Amazon Associate and Autel/ANCEL partner, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.
Other fluid systems on this vehicle
A/C Refrigerant
A/C Refrigerant
Brake Fluid
1.5 qt
Brake Fluid
1.5 qt
Engine Oil
4.5 qt
Engine Oil
4.5 qt
Front Differential
3.5 qt
Power Steering
1.5 qt
Power Steering
1.5 qt
Rear Differential
2.25 qt
Rear Differential
2.25 qt
Transfer Case
2 qt
Automatic Transmission
13.5 qt
Automatic Transmission
13.5 qt
Washer Fluid
4 qt
Washer Fluid
4 qt