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Fastener Specifications

GM6094327Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts items in the following chart represent components shown in graphic above.
Catalytic Converter Brace Bracket- Front (LZ0)

Callout Component Name Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Exhaust Particulate Filter Bracket Nut [2x] - - 22 N.m (16 lb ft) Nitrogen Oxides Catalytic Converter with Filter Replacement 
2 Catalytic Converter Brace Bracket Bolt [2x] - - 22 N.m (16 lb ft) Engine Replacement (2WD) , or Engine Replacement (4WD)
GM6093803Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts items in the following chart represent components shown in graphic above.
Catalytic Converter Brace Bracket- Middle (Engine Block) (LZ0)

Callout Component Name Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Catalytic Converter Brace Bracket Bolt [2x] - - 22 N.m (16 lb ft) Catalytic Converter Brace Bracket Replacement - Middle (Engine Block) 
GM6106681Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts items in the following chart represent components shown in graphic above.
Catalytic Converter Brace Bracket- Middle (Nitrogen Oxides Catalytic Converter) (LZ0)

Callout Component Name Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Catalytic Converter Brace Bracket Nut [4x] - - 22 N.m (16 lb ft) Catalytic Converter Brace Bracket Replacement - Middle (Nitrogen Oxides Catalytic Converter) 
GM6099895Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts items in the following chart represent components shown in graphic above.
Catalytic Converter Brace Bracket & Nitrogen Oxides Catalytic Converter (LZ0)

Callout Component Name Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Exhaust System Front Gasket Yes - - Nitrogen Oxides Catalytic Converter Replacement 
2 Catalytic Converter Nut [4x] - - 50 N.m (37 lb ft) Nitrogen Oxides Catalytic Converter Replacement 
3 Catalytic Converter Brace Bracket Nut [2x] - - 22 N.m (16 lb ft) Catalytic Converter Brace Bracket Replacement (LZ0) 
GM6093838Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts items in the following chart represent components shown in graphic above.
Catalytic Converter Brace Bracket-Rear Upper (LZ0)

Callout Component Name Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Catalytic Converter Brace Bracket Nut [2x] - - 22 N.m (16 lb ft) Catalytic Converter Brace Bracket Replacement - Rear Upper 
2 Catalytic Converter Brace Bracket Bolt [2x] - - 36 N.m (27 lb ft) Catalytic Converter Brace Bracket Replacement - Rear Upper 
GM5657341Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts items in the following chart represent components shown in graphic above.
Catalytic Converter Brace Bracket-Warm Up Three-Way Catalytic Converter (L3B)

Callout Component Name Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Catalytic Converter Brace Bracket Bolt [2x] - - 22 N.m (16 lb ft) Warm Up Three-Way Catalytic Converter Replacement 
2 Catalytic Converter Brace Bracket Nut [2x] - - 22 N.m (16 lb ft) Warm Up Three-Way Catalytic Converter Replacement 
GM6100718Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts items in the following chart represent components shown in graphic above.
Catalytic Converter Clamp@Nitrogen Oxides Catalytic Converter (LZ0)

Callout Component Name Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Catalytic Converter Gasket Yes - - Nitrogen Oxides Catalytic Converter with Filter Replacement 
2 Catalytic Converter Clamp Yes - 15 N.m (11 lb ft) Nitrogen Oxides Catalytic Converter with Filter Replacement 
GM5615029Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts items in the following chart represent components shown in graphic above.
Exhaust Front Bracket (LZ0)

Callout Component Name Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Catalytic Converter Brace Bracket Bolt [2x] - - 22 N.m (16 lb ft) Exhaust Front Bracket Replacement 
2 Exhaust Hanger Bracket Nut - - 22 N.m (16 lb ft) Exhaust Front Bracket Replacement 
GM6100053Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts items in the following chart represent components shown in graphic above.
Exhaust Front Underbody Heat Shield & Exhaust Rear Underbody Heat Shield

Callout Component Name Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Exhaust Heat Shield Retainer [9x] - - 2.5 N.m (2 lb ft) Exhaust Front Underbody Heat Shield Replacement (Single Exhaust) (L84/L87) , or Exhaust Front Underbody Heat Shield Replacement (Dual Exhaust) (L84/L87 - ULV) , or Exhaust Front Underbody Heat Shield Replacement (without Z45) (L3B) , or Exhaust Front Underbody Heat Shield Replacement (with Z45) (L3B) , or Exhaust Front Underbody Heat Shield Replacement (Single Exhaust) (LZ0) , or Exhaust Front Underbody Heat Shield Replacement (Dual Exhaust) (LZ0) , or Exhaust Front Underbody Heat Shield Replacement (Dual Exhaust) (L84/L87 & ULV) 
Exhaust Rear Underbody Heat Shield Replacement (Single Exhaust) (L84/L87) , or Exhaust Rear Underbody Heat Shield Replacement (Dual Exhaust) (L84/L87) , or Exhaust Rear Underbody Heat Shield Replacement (without Z45) (L3B) , or Exhaust Rear Underbody Heat Shield Replacement (with Z45) (L3B) , or Exhaust Rear Underbody Heat Shield Replacement (Dual Exhaust) (LZ0) , or Exhaust Rear Underbody Heat Shield Replacement (Single Exhaust) (LZ0) 
GM6121337Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts items in the following chart represent components shown in graphic above.
Exhaust Gas Recirculation Valve Actuator (LZ0)

Callout Component Name Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Exhaust Gas Recirculation Valve Nut [2x] Yes - - Exhaust Gas Recirculation Valve Actuator Replacement 
2 Exhaust Back Pressure Valve Shield- Front Yes - - Exhaust Gas Recirculation Valve Actuator Replacement 
3 Exhaust Back Pressure Valve Shield- Rear Yes - - Exhaust Gas Recirculation Valve Actuator Replacement 
4 Exhaust Gas Recirculation Valve Actuator Bolt-Short Yes - Exhaust Back Pressure Valve Bolt Torque Sequence (LZ0)  Exhaust Gas Recirculation Valve Actuator Replacement 
5 Exhaust Gas Recirculation Valve Actuator Bolt-Long Yes - Exhaust Back Pressure Valve Bolt Torque Sequence (LZ0)  Exhaust Gas Recirculation Valve Actuator Replacement 
GM6016320Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts items in the following chart represent components shown in graphic above.
Exhaust Heat Shield (L84, L87)

Callout Component Name Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Exhaust Heat Shield Retainer [2x] - - 2.5 N.m (2 lb ft) Exhaust Heat Shield Replacement 
GM5626995Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts items in the following chart represent components shown in graphic above.
Exhaust Manifold (LZ0)

Callout Component Name Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Exhaust Manifold Flange Bolt [12x] - Yes Exhaust Manifold Flange Bolt Torque Sequence (LZ0)  Exhaust Manifold Replacement 
2 Exhaust Manifold Gasket Yes - - Exhaust Manifold Replacement 
3 Turbocharger Gasket Yes - - Compressor Air Intake Turbocharger Replacement
GM5626993Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts items in the following chart represent components shown in graphic above.
Exhaust Manifold Heat Shield (LZ0)

Callout Component Name Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Exhaust Manifold Heat Shield Bolt [2x] - - 10 N.m (89 lb in) Exhaust Manifold Heat Shield Replacement 
GM5620356Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts items in the following chart represent components shown in graphic above.
Exhaust Manifold Heat Shield-Exhaust Manifold (L84, L87)

Callout Component Name Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Exhaust Manifold Heat Shield Bolt [3x] - - 8.5 N.m (75 lb in) Exhaust Manifold Heat Shield Replacement - Left Side 
Exhaust Manifold Heat Shield Replacement - Right Side 
2 Exhaust Manifold Bolt [5x] Yes Yes Exhaust Manifold Bolt Torque Sequence - Left Side (L84, L87)  Exhaust Manifold Replacement - Left Side 
Exhaust Manifold Bolt Torque Sequence - Right Side (L84, L87)  Exhaust Manifold Replacement - Right Side 
3 Exhaust Manifold Gasket Yes - - Exhaust Manifold Replacement - Left Side 
Exhaust Manifold Replacement - Right Side 
GM6101071Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts items in the following chart represent components shown in graphic above.
Exhaust Pipe Clamp@Exhaust Rear Pipe (LZ0)

Callout Component Name Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Exhaust Pipe Clamp - - 28 N.m (21 lb ft) Exhaust Rear Pipe Replacement (Dual Exhaust, Left Side) (LZ0) , or Exhaust Rear Pipe Replacement (Single Exhaust) (LZ0) , or Exhaust Rear Pipe Replacement (Dual Exhaust, Right Side) (LZ0) 
GM5654213Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts items in the following chart represent components shown in graphic above.
Exhaust Pipe Clamp@Exhaust Muffler (L84, L87)

Callout Component Name Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Exhaust Pipe Clamp - - 28 N.m (21 lb ft) Exhaust Muffler Replacement (Single Exhaust) , or Exhaust Muffler Replacement (Dual Exhaust) 
GM5654208Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts items in the following chart represent components shown in graphic above.
Exhaust Rear Pipe-Exhaust Rear Hanger

Callout Component Name Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Exhaust System Rear Nut [2x] - - 22 N.m (16 lb ft) Exhaust Rear Pipe Replacement (Dual Exhaust) (L84/L87) , or Exhaust Rear Pipe Replacement (Dual Exhaust, Left Side) (LZ0) , or Exhaust Rear Pipe Replacement (Single Exhaust) (LZ0) , or Exhaust Rear Pipe Replacement (Dual Exhaust, Right Side) (LZ0) 
2 Exhaust System Rear Gasket Yes - - Exhaust Rear Pipe Replacement (Dual Exhaust) (L84/L87) , or Exhaust Rear Pipe Replacement (Dual Exhaust, Left Side) (LZ0) , or Exhaust Rear Pipe Replacement (Single Exhaust) (LZ0) , or Exhaust Rear Pipe Replacement (Dual Exhaust, Right Side) (LZ0) 
3 Exhaust Hanger Bracket Bolt [2x] - - 45 N.m (33 lb ft) Exhaust Rear Hanger Replacement - Left Side 
Exhaust Rear Hanger Replacement - Right Side 
GM6497477Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts items in the following chart represent components shown in graphic above.
Exhaust Tail Pipe

Callout Component Name Single Use Fastener / Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Exhaust Pipe Clamp - - 50 N.m (37 lb ft) Exhaust Tail Pipe Replacement
GM6174908Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts items in the following chart represent components shown in graphic above.
Fuel Heater Inlet and Outlet Nut (LZ0)

Callout Component Name Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Fuel Heater Inlet and Outlet Nut - - 9 N.m (80 lb in) Turbocharger Oil Feed Pipe Replacement
GM5509232Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts items in the following chart represent components shown in graphic above.
Three-Way Catalytic Converter (L84, L87)

Callout Component Name Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Exhaust Front Pipe Nut [6x] - - 50 N.m (37 lb ft) Three-Way Catalytic Converter Replacement (2WD) , or Three-Way Catalytic Converter Replacement (4WD) 
2 Exhaust Heat Shield Bolt - - 9 N.m (80 lb in) Exhaust Front Pipe Heat Shield Replacement - Left Side 
3 Exhaust Heat Shield Bolt - - 9 N.m (80 lb in) Exhaust Front Pipe Heat Shield Replacement - Right Side 
4 Exhaust System Seal Yes - - Three-Way Catalytic Converter Replacement (2WD) , or Three-Way Catalytic Converter Replacement (4WD) 
5 Exhaust System Seal Yes - - Three-Way Catalytic Converter Replacement (2WD) , or Three-Way Catalytic Converter Replacement (4WD) 
GM5657086Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts items in the following chart represent components shown in graphic above.
Turbocharger Heat Shield (L3B)

Callout Component Name Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Turbocharger Heat Shield Bolt [4x] - - 9 N.m (80 lb in) Turbocharger Heat Shield Replacement (L3B) 
GM6099029Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts items in the following chart represent components shown in graphic above.
Turbocharger Heat Shield (LZ0)

Callout Component Name Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Turbocharger Heat Shield Bolt [2x] - - 9 N.m (80 lb in) Turbocharger Heat Shield Replacement (LZ0) 
2 Turbocharger Heat Shield Nut - - 9 N.m (80 lb in) Turbocharger Heat Shield Replacement (LZ0) 
GM5657276Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts items in the following chart represent components shown in graphic above.
Warm Up Three-Way Catalytic Converter (L3B)

Callout Component Name Single Use Fastener/Component Thread Locking Adhesive Required Specification Procedure Link
Metric (English)
1 Catalytic Converter Nut [2x] - - 50 N.m (37 lb ft) Exhaust Muffler Replacement (without Z45) (L3B) , or Exhaust Muffler Replacement (with Z45) (L3B) 
2 Exhaust System Front Gasket Yes - - Exhaust Muffler Replacement (without Z45) (L3B) , or Exhaust Muffler Replacement (with Z45) (L3B) 
3 Catalytic Converter Clamp Yes - 18 N.m (13 lb ft) Warm Up Three-Way Catalytic Converter Replacement 
4 Catalytic Converter Gasket Yes - - Warm Up Three-Way Catalytic Converter Replacement 
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