Engine Mechanical - 6.6l (lgh, Lml) - Component Locator

Scheme 49

Scheme 49: Engine Block and Components

Callout	Component Name
1	Engine Block Heater
2	Engine Block Assembly
3	Cylinder Head Location Pin
4	Engine Block Oil Gallery Plug
5	Engine Block Coolant Drain Plug
6	Crankshaft Bearing Cap Bolt/Screw
7	Connecting Rod Cap
8	Connecting Rod Bearing
9	Piston Pin
10	Piston Pin Retainer
11	Piston Rings
12	Piston
13	Connecting Rod
14	Connecting Rod Bolt
15	Upper Thrust Bearing
16	Flywheel
17	Flywheel Location Pin
18	Dowel Pin
19	Flywheel Bolt
20	Flywheel Washer
21	Flywheel- Manual Transmission
22	Flex Plate
23	Lower Thrust Bearing
24	Crankshaft Main Bearing Cap Location Pin
25	Crankshaft Bearing Cap Bolt
26	Crankshaft Bearing Cap
27	Crankshaft Lower Bearing
28	Crankshaft Thrust Bearing
29	Crankshaft Position Sensor Exciter Ring Bolt
30	Crankshaft Position Sensor Exciter Ring Pin
31	Crankshaft Balancer Bolt
32	Crankshaft Balancer Washer
33	Crankshaft Balancer
34	Oil Pump Drive Gear
35	Crankshaft Position Sensor Exciter Ring
36	Crankshaft Gear
37	Crankshaft Pin
38	Crankshaft
39	Upper Crankshaft Bearings
40	Engine Block Plug
41	Engine Block Plug

Scheme 50

Scheme 50: Cylinder Head, Valves, Lifters, Timing Components, Camshaft

Callout	Component Name
1	Cylinder Head Assembly- Right Side
2	Cylinder Head Core Plug
3	Valve Lifter
4	Valve Lifter Guide
5	Valve Lifter Guide Retainer
6	Valve Lifter Guide Bracket Bolt
7	Cylinder Head Assembly- Left Side
8	Pushrod
9	Cylinder Head Screw
10	Valve Guide
11	Valve Stem Oil Seal
12	Rocker Arm Shaft Bolt
13	Rocker Arm Shaft Assembly
14	Valve Rocker Arm Shaft Oil Deflector
15	Valve Rocker Arm Shaft Oil Deflector Bolt
16	Rocker Arm
17	Valve Bridge Pin
18	Valve Bridge
19	Valve Key
20	Valve Spring Retainer
21	Valve Spring
22	Valve Spring Seat
23	Rocker Arm Shaft Location Pin
24	Sealing Cup
25	Location Pins
26	Cylinder Head Bolt
27	Glow Plug
28	Fuel Injector
29	Fuel Injector Bracket Bolt
30	Fuel Injector Bracket
31	Fuel Injector Pivot Pin
32	Fuel Injector O-ring Seal
33	Fuel Injector Gasket
34	Intake Valve Seat Insert
35	Intake Valve
36	Sealing Cup
37	Exhaust Valve Seat Insert
38	Exhaust Valve
39	Cylinder Head Gasket- Left Side
40	Camshaft Gear
41	Camshaft Position Sensor Exciter Ring Bolt
42	Camshaft Position Sensor Exciter Ring Pin
43	Camshaft Position Sensor Exciter Ring
44	Camshaft Gear Bolt
45	Camshaft Gear Washer
46	Camshaft
47	Camshaft Pin
48	Camshaft Thrust Plate
49	Camshaft Thrust Plate Bolt
50	Camshaft Bearing
51	Cylinder Head Gasket- Right Side

Scheme 51

Scheme 51: Cooling, Water Pump

Callout	Component Name
1	Engine Coolant Outlet Pipe
2	Engine Coolant Outlet Pipe Bolt
3	Thermostat
4	Thermostat Housing Pipe
5	Cooling Fan Pulley Nut
6	Cooling Fan Pulley
7	Cooling Fan Pulley Spacer
8	Cooling Fan Pulley Stud
9	Cooling Fan Pulley Bolt
10	Water Pump Stud
11	Water Pump O-ring Seal
12	Water Pump Gasket
13	Water Pump
14	Water Pump Bolt
15	Water Pump Nut
16	Water Pump Bolt
17	Thermostat Housing Gasket
18	Thermostat Housing Stud
19	Thermostat Housing
20	Thermostat Housing Bolt
21	Thermostat Housing Nut
22	Thermostat Bypass Pipe
23	Thermostat Bypass Pipe O-ring Seal
24	Thermostat Bypass Pipe Bolt
25	Thermostat Bypass Pipe Crossover Tube Clamps
26	Thermostat Bypass Pipe Crossover Tube
27	Thermostat Bypass Pipe O-ring Seal

Scheme 52

Scheme 52: Oil Pan, Pump, Filter, Tube

Callout	Component Name
1	Oil Fill Tube Cap
2	Oil Fill Tube
3	Oil Pump Assembly Bolt
4	Oil Pump Assembly Bolt
5	Oil Pump Gear Nut
6	Oil Pump Gear
7	Oil Pump Assembly Bolt
8	Oil Pump Pipe and Screen Assembly Bolt
9	Oil Pump Assembly
10	Oil Pump O-ring
11	Piston Oil Nozzle Assembly
12	Oil Flow Check Valve Assembly
13	Oil Cooler Tube Stud
14	Oil Cooler Tube Nut
15	Oil Cooler Tube O-ring Seal
16	Engine Oil Cooler O-ring
17	Engine Oil Cooler
18	Oil Filter Adapter
19	Oil Filter
20	Engine Oil Cooler Bolt
21	Engine Oil Cooler Nut
22	Engine Oil Cooler Stud
23	Oil Cooler Tube
24	Oil Cooler Tube Gasket
25	Oil Pump Pipe and Screen Assembly Bolt
26	Positioning Pin
27	Upper Oil Pan Bolt
28	Oil Level Indicator Tube Bolt
29	Oil Level Indicator Tube
30	Oil Level Sensor Retainer
31	Oil Drain Plug
32	Lower Oil Pan Stud
33	Lower Oil Pan Nut
34	Lower Oil Pan Bolt
35	Lower Oil Pan
36	Oil Pan Magnet
37	Oil Level Sensor Bolt
38	Oil Level Sensor
39	Upper Oil Pan
40	Oil Pan Baffle
41	Oil Pan Baffle Bolt
42	Oil Pump Pipe and Screen Assembly
43	Oil Pump Pipe and Screen Assembly O-ring
44	Oil Fill Tube O-ring
45	Oil Fill Tube Bolt

Scheme 53

Scheme 53: Intake Manifold, EGR, Air, Covers (LGH)

Callout	Component Name
1	Oxygen Sensor Assembly
2	Exhaust Temperature Sensor Assembly
3	Turbocharger Air Inlet Adapter
4	Turbocharger Air Inlet Adapter Seal
5	Turbocharger Air Inlet Adapter Clamp
6	Turbocharger Charger Assembly
7	Turbocharger Vane Control Valve
8	Turbocharger Vane Position Sensor
9	Turbocharger Charger Heat Shield
10	Turbocharger Charger Heat Shield Bolt
11	Turbocharger Charger Air Temp Sensor Assembly
12	Turbocharger Exhaust Pipe Adapter Clamp
13	Exhaust Turbocharger Inlet Pipe Adapter
14	NOx Sensor Assembly
15	Exhaust Turbocharger Inlet Pipe Gasket
16	Turbocharger Charger Bolt
17	Turbocharger Oil Return Pipe Nut
18	Turbocharger Oil Return Pipe Stud
19	Turbocharger Oil Return Pipe Gasket
20	Turbocharger Oil Return Pipe Gasket
21	Turbocharger Oil Return Pipe Assembly
22	Turbocharger Oil Return Pipe Bolt
23	Turbocharger Oil Feed Pipe Bolt
24	Turbocharger Oil Feed Pipe Gasket
25	Turbocharger Oil Feed Pipe Assembly
26	Turbocharger Oil Feed Pipe Bolt
27	Heater Hose Clamp
28	Heater Hose Assembly
29	Heater Inlet Hose Connector
30	Turbocharger Cooler Feed Pipe Bolt
31	Turbocharger Cooler Feed Hose
32	Turbocharger Cooler Feed Pipe Assembly
33	Turbocharger Cooler Feed Pipe Gasket
34	Turbocharger Cooler Feed Pipe Bolt
35	Turbocharger Cooler Feed Hose Clamp
36	Valve Rocker Arm Upper Cover Bolt
37	Valve Rocker Arm Upper Cover
38	Valve Rocker Arm Upper Gasket
39	EGR Cooling Pipe O-ring Seal
40	EGR Manifold Cooling Feed Pipe Assembly
41	EGR Valve Pipe Bolt
42	EGR Valve Cooling Feed Hose
43	EGR Valve Cooling Feed Hose Clamp
44	EGR Cooler Stud
45	EGR Cooler Bolt
46	EGR Cooler
47	EGR Cooler Gasket
48	EGR Valve Gasket
49	EGR Valve Bolt
50	EGR Valve Cover
51	EGR Valve Cover Gasket
52	EGR Valve Bolt
53	EGR Valve Bolt
54	EGR Valve Assembly
55	EGR Cooler Bolt
56	EGR Cooler Bolt
57	EGR Cooler Return Hose
58	EGR Cooler Return Hose Clamp
59	EGR Valve Bracket
60	EGR Valve Bracket Bolt
61	EGR Cooler
62	EGR Cooler Bolt
63	EGR Cooler Feed Hose Clamp
64	EGR Cooler Feed Hose
65	EGR Cooler Bracket
66	EGR Cooler Bracket Bolt
67	Valve Rocker Arm Lower Cover
68	Valve Rocker Arm Lower Cover Bolt
69	Valve Rocker Arm Lower Cover Bolt
70	Flywheel Housing Cover Bolt
71	Flywheel Housing Cover
72	Flywheel Housing Cover Gasket
73	Flywheel Housing
74	Flywheel Housing Bolt
75	Crankshaft Rear Oil Seal
76	Flywheel Housing Location Pin
77	Flywheel Housing to Engine Seal
78	Valve Rocker Arm Cover Spacer Gasket
79	LH Lower Intake Manifold
80	Intake Manifold Bolt
81	Intake Manifold Nut
82	Intake Manifold Stud
83	Front Cover Location Pin
84	Crankshaft Oil Seal Assembly
85	Front Cover Bolt
86	Front Cover Assembly
87	Intake Manifold Gasket
88	Upper Intake Manifold
89	Upper Intake Manifold Stud
90	Upper Intake Manifold Nut
91	Upper Intake Manifold Brace
92	Upper Intake Manifold Brace Bolt
93	Upper Intake Manifold Gasket
94	EGR Valve Temperature Sensor
95	Intake Manifold Tube Bolt
96	MAP Sensor Assembly
97	MAP Sensor Assembly Bolt
98	Intake Manifold Tube
99	Upper Intake Manifold Brace
100	Upper Intake Manifold Brace Bolt
101	Intake Manifold Gasket
102	Intake Air Heater Assembly
103	Throttle Body Gasket
104	Throttle Body Assembly
105	Throttle Body Assembly Bolt
106	Hose Clamp
107	Turbocharger Cooler Return Hose
108	Turbocharger Cooler Return Pipe
109	Turbocharger Cooler Return Hose
110	Turbocharger Cooler Return Pipe Nut
111	Turbocharger Cooler Return Pipe Assembly
112	Turbocharger Cooler Return Pipe Gasket
113	Turbocharger Cooler Return Pipe Bolt

Scheme 54

Scheme 54: Intake Manifold, EGR, Air, Covers (LML)

Callout	Component Name
1	Oxygen Sensor Assembly
2	Exhaust Temperature Sensor Assembly
3	Turbocharger Air Inlet Adapter
4	Turbocharger Air Inlet Adapter Seal
5	Turbocharger Air Inlet Adapter Clamp
6	Turbocharger Charger Assembly
7	Turbocharger Vane Control Valve
8	Turbocharger Vane Position Sensor
9	Turbocharger Charger Heat Shield
10	Turbocharger Charger Heat Shield Bolt
11	Turbocharger Charger Air Temp Sensor Assembly
12	Turbocharger Exhaust Pipe Adapter Clamp
13	Exhaust Turbocharger Inlet Pipe Adapter
14	NOx Sensor Assembly
15	Exhaust Turbocharger Inlet Pipe Gasket
16	Turbocharger Charger Bolt
17	Turbocharger Oil Return Pipe Nut
18	Turbocharger Oil Return Pipe Stud
19	Turbocharger Oil Return Pipe Gasket
20	Turbocharger Oil Return Pipe Gasket
21	Turbocharger Oil Return Pipe Assembly
22	Turbocharger Oil Return Pipe Bolt
23	Turbocharger Oil Feed Pipe Bolt
24	Turbocharger Oil Feed Pipe Gasket
25	Turbocharger Oil Feed Pipe Assembly
26	Turbocharger Oil Feed Pipe Bolt
27	Heater Hose Clamp
28	Heater Hose Assembly
29	Heater Inlet Hose Connector
30	Turbocharger Cooler Feed Pipe Bolt
31	Turbocharger Cooler Feed Hose
32	Turbocharger Cooler Feed Pipe Assembly
33	Turbocharger Cooler Feed Pipe Gasket
34	Turbocharger Cooler Feed Pipe Bolt
35	Turbocharger Cooler Feed Hose Clamp
36	Valve Rocker Arm Upper Cover Bolt
37	Valve Rocker Arm Upper Cover
38	Valve Rocker Arm Upper Gasket
39	EGR Cooling Pipe O-ring Seal
40	EGR Manifold Cooling Feed Pipe Assembly
41	EGR Valve Pipe Bolt
42	EGR Valve Cooling Feed Hose
43	EGR Valve Cooling Feed Hose Clamp
44	EGR Cooler Stud
45	EGR Cooler Bypass Valve Bolt
46	EGR Cooler Bolt
47	EGR Cooler Bypass Valve
48	EGR Cooler Bypass Valve Gasket
49	EGR Cooler
50	EGR Cooler Bypass Hose
51	Hose Clamp
52	EGR Cooler Gasket
53	EGR Valve Gasket
54	EGR Valve Bolt
55	EGR Valve Pipe Gasket
56	EGR Valve Pipe Bolt
57	EGR Valve Pipe Bolt
58	EGR Valve Pipe
59	EGR Valve Pipe Gasket
60	EGR Valve Bolt
61	EGR Valve Bolt
62	EGR Valve Assembly
63	EGR Cooler Bolt
64	EGR Cooler Bolt
65	EGR Cooler Return Hose
66	EGR Cooler Return Hose Clamp
67	EGR Valve Bracket
68	EGR Valve Bracket Bolt
69	EGR Cooler
70	EGR Cooler Bolt
71	EGR Cooler Feed Hose Clamp
72	EGR Cooler Feed Hose
73	EGR Cooler Bracket
74	EGR Cooler Bracket Bolt
75	Valve Rocker Arm Lower Cover
76	Valve Rocker Arm Lower Cover Bolt
77	Valve Rocker Arm Lower Cover Bolt
78	Flywheel Housing Cover Bolt
79	Flywheel Housing Cover
80	Flywheel Housing Cover Gasket
81	Flywheel Housing
82	Flywheel Housing Bolt
83	Crankshaft Rear Oil Seal
84	Flywheel Housing Location Pin
85	Flywheel Housing to Engine Seal
86	Valve Rocker Arm Cover Spacer Gasket
87	LH Lower Intake Manifold
88	Intake Manifold Bolt
89	Intake Manifold Nut
90	Intake Manifold Stud
91	Front Cover Location Pin
92	Crankshaft Oil Seal Assembly
93	Front Cover Bolt
94	Front Cover Assembly
95	Intake Manifold Gasket
96	Upper Intake Manifold
97	Upper Intake Manifold Stud
98	Upper Intake Manifold Nut
99	Upper Intake Manifold Brace
100	Upper Intake Manifold Brace Bolt
101	Upper Intake Manifold Gasket
102	EGR Valve Temperature Sensor
103	Intake Manifold Tube Bolt
104	MAP Sensor Assembly
105	MAP Sensor Assembly Bolt
106	Intake Manifold Tube
107	Upper Intake Manifold Brace
108	Upper Intake Manifold Brace Bolt
109	Intake Manifold Gasket
110	Intake Air Heater Assembly
111	Throttle Body Gasket
112	Throttle Body Assembly
113	Throttle Body Assembly Bolt
114	Hose Clamp
115	Turbocharger Cooler Return Hose
116	Turbocharger Cooler Return Pipe
117	Turbocharger Cooler Return Pipe Nut
118	Turbocharger Cooler Return Pipe Bolt
119	Turbocharger Cooler Return Pipe Gasket
120	Turbocharger Cooler Return Pipe Assembly

Scheme 55

Scheme 55: Exhaust Manifolds (LGH)

Callout	Component Name
1	EGR Pipe Gasket
2	Exhaust Pipe
3	Exhaust Pipe Stud
4	Exhaust Pipe Nut
5	Exhaust Pipe Heat Shield
6	Exhaust Pipe Heat Shield Bolt
7	EGR Pipe Bolt
8	Exhaust Pipe Bolt
9	Exhaust Crossover Pipe
10	Exhaust Crossover Pipe Bolt
11	Exhaust Crossover Pipe Heat Shield
12	Exhaust Crossover Pipe Heat Shield Bolt
13	Exhaust Crossover Pipe Gasket
14	Exhaust Manifold Stud
15	Exhaust Manifold Gasket
16	Exhaust Manifold- Left Side
17	Exhaust Manifold Nut
18	Exhaust Manifold Heat Shield
19	Exhaust Manifold Heat Shield Bolt
20	Exhaust Manifold Bolt
21	Exhaust Manifold Bolt
22	Exhaust Manifold Washer
23	Exhaust Manifold Heat Shield Bolt
24	Exhaust Manifold Heat Shield
25	Exhaust Manifold Bolt
26	Exhaust Manifold Nut
27	Exhaust Manifold Stud
28	Exhaust Manifold- Right Side
29	Exhaust Manifold Gasket
30	Exhaust Pipe Gasket

Scheme 56

Scheme 56: Exhaust Manifolds (LML)

Callout	Component Name
1	EGR Pipe Gasket
2	Exhaust Pipe
3	Exhaust Pipe Bolt
4	Exhaust Pipe Heat Shield
5	Exhaust Pipe Heat Shield Bolt
6	Exhaust Pipe Nut
7	Exhaust Pipe Stud
8	Exhaust Pipe Gasket
9	Exhaust Outlet Pipe Bracket
10	Exhaust Pipe Bolt
11	Exhaust Crossover Pipe
12	Exhaust Crossover Pipe Bolt
13	Exhaust Crossover Pipe Heat Shield
14	Exhaust Crossover Pipe Heat Shield Bolt
15	Exhaust Crossover Pipe Gasket
16	Exhaust Manifold Stud
17	Exhaust Manifold Gasket
18	Exhaust Manifold- Left Side
19	Exhaust Manifold Nut
20	Exhaust Manifold Heat Shield
21	Exhaust Manifold Heat Shield Bolt
22	Exhaust Manifold Bolt
23	Exhaust Manifold Bolt
24	Exhaust Manifold Washer
25	Exhaust Manifold Heat Shield Bolt
26	Exhaust Manifold Heat Shield
27	Exhaust Manifold Bolt
28	Exhaust Manifold Nut
29	Exhaust Manifold Stud
30	Exhaust Manifold- Right Side
31	Exhaust Manifold Gasket

Scheme 57

Scheme 57: Miscellaneous, Sensors, Ignition, Vacuum Hoses, Electrical

Callout	Component Name
1	Engine Wiring Harness
2	Engine Wiring Harness Bolt
3	Case Diaphragm Regulator Valve Assembly Bolt
4	Case Diaphragm Regulator Valve Assembly
5	PCV Hose Assembly
6	Engine Wiring Harness Heat Shield
7	Engine Wiring Harness Heat Shield Bolt
8	Glow Plug Controller MDL Bolt
9	Glow Plug Controller Assembly
10	Glow Plug Controller MDL Bolt
11	Glow Plug Controller MDL Bracket Assembly
12	PCV Oil Separator Assembly
13	PCV Oil Separator Assembly Bolt
14	PCV Oil Separator Drain Hose Assembly
15	PCV Oil Separator Drain Hose Assembly Bolt
16	PCV Oil Separator Drain Hose Assembly Bolt
17	Oil Pressure Sensor
18	Power Steering Pump Bracket Bolt
19	Idler Pulley
20	Power Steering Pump Bracket
21	Power Steering Pump Bracket Stud
22	Power Steering Pump Bracket Nut
23	Idler Pulley Bolt
24	Idler Pulley
25	Idler Pulley Bolt
26	Generator Bracket Bolt
27	Drive Belt Tensioner Bolt
28	Drive Belt Tensioner
29	Generator Mounting Bracket Nut
30	Generator Mounting Bracket Stud
31	Generator Bracket Plate Bolt
32	Generator Bracket Plate
33	Generator Bracket
34	Oil Pressure Relief Valve O-ring
35	Oil Pressure Relief Valve
36	Camshaft Position Sensor Bolt
37	Camshaft Position Sensor
38	Coolant Temperature Sensor
39	Crankshaft Position Sensor Bolt
40	Crankshaft Position Sensor
41	Crankshaft Position Sensor Spacer Bolt
42	Crankshaft Position Sensor Spacer
43	PCV Oil Separator O-ring Seal
44	PCV Oil Separator Cover
45	PCV Oil Separator Bolts

Scheme 58

Scheme 58: Fuel System

Callout	Component Name
1	Fuel Filter Hose
2	Fuel Filter Hose Clamp
3	Fuel Feed Manifold Bolt
4	Fuel Injection Fuel Feed Manifold
5	Fuel Pressure Service Valve O-ring Seal
6	Fuel Pressure Service Valve
7	Fuel Feed Pipe Clip Bracket Bolt
8	Fuel Feed Pipe Clip Bracket
9	Fuel Feed Pipe
10	Indirect Fuel Injector Bolt
11	Indirect Fuel Injector
12	Fuel Feed Hose
13	Fuel Return Hose
14	Fuel Return Hose
15	Fuel Return Pipe Bolt
16	Fuel Feed and Return Pipe Clip
17	Fuel Return Pipe Nut
18	Fuel Return Pipe
19	Fuel Temperature Sensor
20	Fuel Feed and Return Pipe Clip
21	Fuel Feed and Return Pipe Clip Bolt
22	Fuel Pressure Regulator Vacuum Tube Clamp
23	Engine Fuel Vacuum Switch
24	Fuel Pressure Regulator Vacuum Tube
25	Engine Fuel Vacuum Switch Bracket
26	Fuel Feed Pipe
27	Fuel Feed Pipe Nut
28	Fuel Feed Pipe Bolt
29	Fuel Pipe Bracket
30	Fuel Pipe Bracket Bolt
31	Fuel Pipe Bracket Bolt
32	Fuel Pipe Bracket
33	High Pressure Fuel Pipe Bolt
34	High Pressure Fuel Pipe
35	Intake Manifold Shield
36	Intake Manifold Shield Bolt
37	Intake Manifold Shield Stud
38	Intake Manifold Shield Nut
39	Fuel Rail Pressure Sensor
40	Fuel Injection Fuel Rail- Left Side
41	Fuel Pressure Relief Valve
42	Fuel Injection Fuel Rail Bolt
43	Fuel Injection Pump Bolt
44	Fuel Injection Pump
45	Fuel Temperature Sensor
46	Fuel Injection Pump Bracket Bolt
47	Fuel Injection Pump Gear Nut
48	Fuel Injection Pump Gear
49	Fuel Injection Pump Bracket O-ring Seal
50	Fuel Injection Pump Bracket
51	Fuel Injection Pump O-ring Seal
52	Fuel Pressure Regulator
53	Fuel Pressure Regulator Bolt
54	Fuel Injection Fuel Return Hose Assembly
55	Fuel Feed and Return Hose Bracket Bolt
56	Fuel Feed and Return Hose Bracket
57	Bracket
58	Bracket Bolt
59	Fuel Feed Hose
60	Fuel Feed Hose Bolt
61	Fuel Filter Bracket Bolt
62	Fuel Filter Bracket
63	Fuel Filter Hose Clamp
64	Fuel Filter Hose
65	Fuel Filter Hose Clamp
66	Fuel Filter Hose
67	Fuel Filter Bracket Bolt
68	Fuel Filter
69	Fuel Injection Fuel Rail Assembly Bolt
70	Fuel Injection Fuel Rail- Right Side
71	High Pressure Fuel Pipe Bolt
72	High Pressure Fuel Pipe
73	Fuel Pipe Bracket
74	Fuel Pipe Bracket Bolt

Scheme 59

Scheme 59: Engine Identification

The engine serial number is located on the left side of the block. It is on the front edge of the block.

Scheme 60

The main bearing bore grades, build date, and sequence number are found on top of the high pressure pump bore.

(1) Main Bearing Bore Grade
(2) Last Digit of Calendar Year
(3) Machining Julian Day
(4) Sequence Number

Engine Mechanical - 6.6l (lgh, Lml) - Component Locator GMC Sierra 2500