transmission

Transmission Oil Cooler Torque Specs

for 2007 GMC Sierra 2500HD 6.6L V8 Duramax Diesel · 4WD

Units

🔧Does this apply to your car? Depending on trim and options — tow packages especially — your vehicle may have a separate auxiliary transmission cooler, or one integrated into the radiator side tank. Check which setup you have before planning this job: if it's integrated, cooler service happens with radiator replacement instead.

17 fasteners

Seq

Component

Torque

Angle

—

Coolant Drain Plug

11 lb-ft · 15 Nm

—

Cover Screws

8 lb-ft · 11 Nm

—

Drain Petcock

Hand tight

7 lb-ft · 9 Nm

—

Drain Plug

Critical

Use new washer

34 lb-ft · 46 Nm

—

Fan Bolts

11 lb-ft · 15 Nm

—

Fill Plug

Critical

34 lb-ft · 46 Nm

—

Flywheel Bolts

Critical

Often TTY, tighten in star pattern

70 lb-ft · 95 Nm

—

Hose Clamps

2 lb-ft · 3 Nm

—

Housing Bolts

Critical

10 lb-ft · 14 Nm

—

Mounting Bolts

Critical

61 lb-ft · 83 Nm

—

Pan Bolts

Critical

Torque in sequence

16 lb-ft · 22 Nm

—

Pump Bolts

Critical

Torque in sequence

24 lb-ft · 33 Nm

—

Sensor Bolts

11 lb-ft · 15 Nm

—

Thermostat Housing Bolts

11 lb-ft · 15 Nm

—

Transmission Drain Plug

Critical

Use new crush washer if equipped

22 lb-ft · 30 Nm

—

Transmission Pan Bolts

Tighten in criss-cross pattern

9 lb-ft · 12 Nm

—

Water Pump Bolts

Critical

Tighten in criss-cross pattern

18 lb-ft · 25 Nm

—

2007 GMC SIERRA 2500HD

17 fasteners