Hummer H2. Manual - part 1854

Fig. 580: Identifying Plug Location On Underside Of Block 
Courtesy of GENERAL MOTORS CORP. 

5. Apply a 3.175 mm (0.125 in) bead of sealant GM P/N 12346004 (Canadian P/N 10953480) to the engine 

block right rear coolant drain hole plug sealing washer.  

6. Install the engine block right rear coolant drain hole plug. 

Tighten: Tighten the block right rear coolant drain hole plug to 60 N.m (44 lb ft). 

 

2004 Hummer H2 

2004 ENGINE Engine Mechanical - 4.8L, 5.3L, and 6.0L - Hummer H2

  

Fig. 581: Engine Block Left Front Oil Gallery Plug 
Courtesy of GENERAL MOTORS CORP. 

7. Apply a 3.175 mm (0.125 in) bead of sealant GM P/N 12346004 (Canadian P/N 10953480) to the engine 

block left front oil gallery plug sealing washer.  

8. Install the engine block left front oil gallery plug. 

Tighten: Tighten the block left front oil gallery plug to 60 N.m (44 lb ft).

 

2004 Hummer H2 

2004 ENGINE Engine Mechanical - 4.8L, 5.3L, and 6.0L - Hummer H2

  

Fig. 582: Engine Block Left Rear Oil Gallery Plug 
Courtesy of GENERAL MOTORS CORP. 

9. Apply a 3.175 mm (0.125 in) bead of sealant GM P/N 12346004 (Canadian P/N 10953480) to the engine 

block left rear oil gallery plug sealing washer.  

10. Install the engine block left rear oil gallery plug. 

Tighten: Tighten the block left rear oil gallery plug to 60 N.m (44 lb ft).

 

2004 Hummer H2 

2004 ENGINE Engine Mechanical - 4.8L, 5.3L, and 6.0L - Hummer H2

  

 

2004 Hummer H2 

2004 ENGINE Engine Mechanical - 4.8L, 5.3L, and 6.0L - Hummer H2