Hummer H3. Manual — part 484

Fig. 11: Exploded View Of Engine Block Plugs/Sensors Components
Courtesy of GENERAL MOTORS CORP.

Oil Pan Bolt

453

Oil Pan Bolt

727

Engine Oil Level Indicator Switch

728

O-Ring

Callout

Component Name

100

Engine Block

100

Engine Block

101

Oil Gallery Plug - Front

110

O-Ring

111

Oil Gallery Plug - Rear

2008 Hummer H3

2008 ENGINE Engine Mechanical - 5.3L - H3

Fig. 12: Exploded View Of Oil Pump Assembly
Courtesy of GENERAL MOTORS CORP.

112

Oil Gallery Plug - Side

113

Washer

114

Engine Coolant Heater

115

Washer

116

Oil Gallery Plug - Side

117

Washer

130

Transmission Housing Locating Pin

145

Washer

146

Engine Block Coolant Drain Hole Plug

701

Crankshaft Position (CKP) Sensor

702

O-Ring

718

Knock Sensor

718

Knock Sensor

739

Bolt

739

Bolt

750

CKP Sensor Bolt

2008 Hummer H3

2008 ENGINE Engine Mechanical - 5.3L - H3

ENGINE IDENTIFICATION

Callout

Component Name

408

Bolt

409

Oil Pump Housing Cover

410

Oil Pump Drive Gear

412

Oil Pump Driven Gear

413

Oil Pump

414

Oil Pump Pressure Relief Valve

415

Oil Pump Pressure Relief Valve Spring

416

Oil Pump Housing Plug

2008 Hummer H3

2008 ENGINE Engine Mechanical - 5.3L - H3

Fig. 13: Vehicle Identification Number
Courtesy of GENERAL MOTORS CORP.

The vehicle identification number (VIN) is located on the left side rear of the engine block (1)
and is typically a 9 digit number stamped or laser-etched onto the engine at the vehicle assembly
plant.

The first digit identifies the division.

The second digit identifies the model year.

The third digit identifies the assembly plant.

2008 Hummer H3

2008 ENGINE Engine Mechanical - 5.3L - H3