Fastener Specifications
WARNING: This page is about a different car, the 2021 GMC Sierra 3500 HD and 2021 GMC Sierra 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
Single Use Non-Threaded Fasteners / Components
|
NOTE:
All fasteners / components listed in this table MUST BE DISCARDED and replaced with NEW after removal. |
|---|
| Application |
| Engine Coolant Thermostat |
| Engine Coolant Thermostat Housing Gasket |
| Engine Oil Cooler Adapter Gasket |
| Engine Oil Cooler Seal |
| Oil Pan Cover Gasket |
| Thermostat Bypass Pipe Gasket |
| Thermostat Bypass Pipe Seal |
| Turbocharger Coolant Feed and Return Pipe Gasket |
| Turbocharger Coolant Feed Pipe Gasket |
| Water Pump Cover Seal |
| Water Pump Housing Gasket |
| Water Pump Outlet Pipe Gasket |
| Water Pump Outlet Port Seal |
Reusable Threaded Fastener tightening Specifications
|
NOTE:
All fasteners listed in this table can be reused after removal. |
|
|---|---|
| Application | Specification |
| Metric (English) | |
| Auxiliary Radiator Bracket Bolt | 9 N.m (80 lb in) |
| Auxiliary Water Pump Bracket Bolt | 9 N.m (80 lb in) |
| Charge Air Cooler Bolt | 22 N.m (16 lb ft) |
| Engine Coolant Fan Bracket Bolt (L5P) | 22 N.m (16 lb ft) |
| Engine Coolant Fan Bracket Bolt @ Water Pump (L8T) | 9 N.m (80 lb in) |
| Engine Coolant Fan Bracket Bolt @ Power Steering Pump Bracket (L8T) | 22 N.m (16 lb ft) |
| Engine Coolant Fan Nut | 22 N.m (16 lb ft) |
| Engine Coolant Heater (L5P) | 65 N.m (48 lb ft) |
| Engine Coolant Heater (L8T) | 50 N.m (37 lb ft) |
| Engine Coolant Thermostat Housing Bolt Refer to procedure for tightening sequence and torque values. |
Engine Coolant Thermostat Housing Replacement (L5P) |
| Engine Oil Cooler Adapter Bolt | 25 N.m (18 lb ft) |
| Engine Oil Cooler Hose Bolt | 9 N.m (80 lb in) |
| Engine Oil Cooler Hose Bracket Nut | 9 N.m (80 lb in) |
| Engine Oil Cooler Pipe Bracket Bolt | 9 N.m (80 lb in) |
| Engine Wiring Harness Ground Bolt | 9 N.m (80 lb in) |
| Exhaust Gas Recirculation Manifold Cooling Feed Pipe Bolt | 10 N.m (89 lb in) |
| Exhaust Gas Recirculation Manifold Cooling Return Pipe Bolt | 10 N.m (89 lb in) |
| Fan Blade Bolt | 22 N.m (16 lb ft) |
| Fan Blade Nut | 22 N.m (16 lb ft) |
| Fan Blade Clutch Nut | 100 N.m (74 lb ft) |
| Fuel Heater Inlet and Outlet Bolt | 9 N.m (80 lb in) |
| Fuel Heater Inlet and Outlet Nut | 9 N.m (80 lb in) |
| Heater Coolant Pump Bracket Bolt | 9 N.m (80 lb in) |
| Hose Clamp @ Auxiliary Water Pump (L5P) | 5 N.m (44 lb in) |
| Radiator Air Lower Baffle Bolt | 2.5 N.m (22 lb in) |
| Radiator Outlet Hose Clamp | 5.5 N.m (49 lb in) |
| Radiator Outlet Hose Clip Bolt | 58 N.m (43 lb ft) |
| Radiator Surge Tank Air Separator Nut | 9 N.m (80 lb in) |
| Radiator Surge Tank Bolt | 9 N.m (80 lb in) |
| Radiator Surge Tank Nut | 9 N.m (80 lb in) |
| Radiator Surge Tank Outlet Pipe Bolt | 9 N.m (80 lb in) |
| Radiator Upper Bracket Bolt | 22 N.m (16 lb ft) |
| Turbocharger Coolant Feed Pipe Bolt (Large) | 25 N.m (18 lb ft) |
| Turbocharger Coolant Feed Pipe Bolt (Small) | 10 N.m (89 lb in) |
| Turbocharger Coolant Feed and Return Pipe Bolt | 10 N.m (89 lb in) |
| Water Pump Bolt Refer to procedure for tightening sequence and torque values. |
Water Pump Housing Replacement (L8T) |
| Water Pump Inlet Bolt | 15 N.m (11 lb ft) |
| Water Outlet Bolt | 25 N.m (18 lb ft) |
| Water Pump Outlet Pipe Stud | 9 N.m (80 lb in) |