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Fastener Specifications

Single Use Non-Threaded Fasteners/Components

NOTE:

All fasteners/components listed in this table MUST BE DISCARDED and replaced with NEW after removal. 

Application
Catalytic Converter Gasket
Catalytic Converter Seal
Exhaust Flex Pipe Gasket
Exhaust Manifold Gasket
Single Use Threaded Fastener/Component Tightening Specifications

NOTE:

All fasteners/components listed in this table MUST BE DISCARDED and replaced with NEW after removal. 

Application Specification
Metric (English)
Catalytic Converter to Cylinder Head (LFX)
  • First Pass:
20 N.m (15 lb ft)
  • Second Pass:
46 N.m (34 lb ft)
Reusable Threaded Fastener Tightening Specifications

NOTE:

All fasteners listed in this table can be reused after removal. 

Application Specification
Metric (English)
Catalytic Converter Brace Nut/Bolt at Converter (LEA) 50 N.m (37 lb ft)
Catalytic Converter Brace Nut/Bolt at Engine Block (LEA) 50 N.m (37 lb ft)
Catalytic Converter Heat Shield Nuts (LFX) 22 N.m (16 lb ft)
Catalytic Converter to Exhaust Front Flexible Pipe Nut 52 N.m (38 lb ft)
Catalytic Converter to Exhaust Manifold Nut/Bolt (LEA) 50 N.m (37 lb ft)
Exhaust Front Flexible Pipe to 3-Way Catalytic Converter 50 N.m (37 lb ft)
Exhaust Manifold Heat Shield Bolt 10 N.m (89 lb in)
Exhaust Manifold Nuts (LEA) 14 N.m (124 lb in)
Exhaust Muffler Clamp Fastener 40 N.m (30 lb ft)
Three Way Catalytic Converter Nut 40 N.m (30 lb ft)
Three Way Catalytic Converter to Front Pipe Nut 50 N.m (37 lb ft)
Three Way Catalytic Converter to Rear Muffler (Clamp) Nut 40 N.m (30 lb ft)