Sierra Classic 2500 2WD V8-6.6L DSL Turbo (2007)
1. Install new coolant pipe O-ring and gasket.
2. Install new oil filter adapter/oil cooler O-ring seals.
3. Install the coolant pipe.
4. Notice: Refer to Fastener Notice in Service Precautions.
Install the coolant pipe nuts.
Tighten the coolant pipe nuts to 25 Nm (18 ft. lbs.).
5. Install the oil cooler and adapter.
6. Install the oil cooler adapter bolts to the oil filter adapter/oil cooler.
Tighten the oil cooler adapter bolts to 25 Nm (18 ft. lbs.).