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Duramax First Generation: 2001-2004 (LB7) Discuss the first generation (2001-2004 LB7) of the 6.6L Duramax diesel engine & associated components. Engine related discussion ONLY.

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Old 03-07-2013, 10:51 PM   #1 (permalink)
imptfgtrz24
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LB7 Fuel System Parts breakdown List

For those of us LB7 Owners that have the signs of fuel dripping and we cant find it, and when we do we don't know what to replace? Here is a few things I hope will help you. (Double Check if you have a California Truck cause parts may be different)


Fuel Injection System Diagram:


002 97148892 CLAMP. CLIP. Fuel Line. Engine Crankcase. Engine Starting Aids. Air Brake Pipe/Hose. Sun Roof Frame.

005 97302699 HOSE. Fuel Line
HOSE,F/INJN FUEL FEED FRT. Required: 01
For: CK2,3 6.6-1 DURAMAX(LB7),CALIF EMIS LEV(NC1),FEDERAL EMIS(NF4) (2002-2004) (2002 - 2004).

005 97216066 HOSE. Fuel Line
HOSE,F/INJN FUEL FEED FRT. Required: 01
For: CK2,3 6.6-1 DURAMAX(LB7),FED EMIS SYS(NF2),CALIF EMIS, TIER 1(NB6) (2001-2004) (2001 - 2004).

006 97288790 COVER. Engine Fuel Intake Manifold
COVER,INT MANIF - RH. Required: 01
RHD. For: CK2,3 6.6-1 DURAMAX(LB7) (2002-2004) (2002 - 2004).

007 97251046 GASKET. Fuel Line

009 97221512 FITTING. Fuel Line
FITTING,F/INJN FUEL RTN PIPE. Required: 01
For: CK2,3 6.6-1 DURAMAX(LB7) (2001-2004) (2001 - 2004).

010 97224993 SENSOR. Fuel Tank Meter/Pump
SENSOR,FUEL TEMP. Required: 01
For: CK2,3 6.6-1 DURAMAX(LB7),ZF 6-SPD M/TRANS(ML6),ALLISON 5-SPD A/TRANS(M74) (2001-2004) (2001 - 2004).

011 97215995 PIPE. Fuel Line
PIPE,F/INJN FUEL RTN RR. Required: 01
For: CK2,3 6.6-1 DURAMAX(LB7) (2001-2004) (2001 - 2004).

013 97215993 PIPE. Fuel Line
PIPE,FUEL FEED FRT. Required: 01
For: CK2,3 6.6-1 DURAMAX(LB7) (2001-2004) (2001 - 2004). 017 94013032 STUD. BOLT. Engine Camshaft & Valve Rocker Cover. Engine Valve Rocker Arm Cover. Engine Oil Pan. Engine Oil Pump. Engine Rear Main Bearing. Fuel Line.
STUD,LWR OIL PAN(00.293). Required: 02
For: CK2,3 6.6-1 DURAMAX(LB7) (2001-2004) (2001 - 2004).

019 94009066 NUT. Air Brake Pipe/Hose. Fuel Injector Pump.

020 94009463 WASHER. Fuel Injector Pump. Steering Knuckle Upper Control Arm.
WASHER,F/INJN PUMP(06.163). Required: 01
For: CK2,3 6.6-1 DURAMAX(LB7) (2001-2004) (2001 - 2004).

021 97148892 CLAMP. CLIP. Fuel Line. Engine Crankcase. Engine Starting Aids. Air Brake Pipe/Hose. Sun Roof Frame.

022 97216067 HOSE. Fuel Line
HOSE,F/INJN F/PMP FUEL RTN. Required: 01
For: CK2,3 6.6-1 DURAMAX(LB7) (2001-2004) (2001 - 2004).

023 97226942 RETAINER. Fuel Line
RETAINER,F/INJN FUEL FEED & RTN PIPE. Required: 01
For: CK2,3 6.6-1 DURAMAX(LB7) (2001-2004) (2001 - 2004).

024 97251046 GASKET. Fuel Line

025 94010595 STUD. Engine Starting Aids
STUD,COLD START FUEL FEED VLV FTG. Required: 02
For: CK2,3 6.6-1 DURAMAX(LB7) (2001-2004) (2001 - 2004).

026 97222721 COVER. Engine Fuel Intake Manifold
COVER,INT MANIF - LH. Required: 01
LHD. For: CK2,3 6.6-1 DURAMAX(LB7) (2001-2004) (2001 - 2004).

028 97230321 HOSE. Engine Starting Aids
HOSE,COLD START FUEL FEED. Required: 01
For: CK2,3 6.6-1 DURAMAX(LB7) (2001-2004) (2001 - 2004).

030 97228958 CONNECTOR. Fuel Line
CONNECTOR,F/INJN FUEL FEED HOSE. Required: 01
For: CK2,3 (2001-2004) (2001 - 2004).

033 97720663 MODULE. Fuel Injection
MODULE,DIR F/INJR DRVR. Required: 01
For: CK2,3 6.6-1 DURAMAX(LB7) (2001-2004) (2001 - 2004).

034 97228933 GASKET. Fuel Line
GASKET,F/INJR FUEL FEED PIPE(FUEL RAIL TO INJECTORS). Required: 08
For: CK2,3 6.6-1 DURAMAX(LB7) (2001-2004) (2001 - 2004).

034 97251046 GASKET. Fuel Line
GASKET,F/INJR FUEL FEED PIPE. Required: 01
For: CK2,3 6.6-1 DURAMAX(LB7) (2001-2004) (2001 - 2004).

035 97208076 FITTING. Fuel Line
FITTING,F/INJN FUEL FEED PIPE(INCLS PRESSURE SENSOR). Required: 01
For: CK2,3 6.6-1 DURAMAX(LB7) (2001-2004) (2001 - 2004).

036 97215444 CONNECTOR. Fuel Line
CONNECTOR,FUEL FEED FRT HOSE. Required: 01
For: CK2,3 6.6-1 DURAMAX(LB7) (2001-2004) (2001 - 2004).

037 97251047 GASKET. Fuel Line

039 97215443 CONNECTOR. Fuel Line
CONNECTOR,FUEL FLTR HOSE. Required: 01
For: CK2,3 6.6-1 DURAMAX(LB7) (2001-2004) (2001 - 2004).

040 97215994 CONNECTOR. Fuel Line
CONNECTOR,FUEL RTN PIPE. Required: 01
For: CK2,3 6.6-1 DURAMAX(LB7) (2001-2004) (2001 - 2004).

041 97216043 CLIP. Fuel Line
CLIP,FUEL FEED FRT PIPE. Required: 01
For: CK2,3 6.6-1 DURAMAX(LB7) (2001-2004) (2001 - 2004).

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Old 03-07-2013, 10:51 PM   #2 (permalink)
imptfgtrz24
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CP3 Breakdown



001 97720662 PUMP. Fuel Injector Pump
PUMP,F/INJN(REMAN)(INCLS PSI REG). Required: 01
PUMP,F/INJN(REMAN)(INCLS PSI REG)(v)2900711100. Required: 01

002 94011843 BOLT. Engine Cover Front. Engine Front Cover. Fuel Injector Pump. Fuel Pump.
BOLT,F/PMP MT PLT(M8X70 FLANGE)(03.306). Required: 01
BOLT,F/PMP MT PLT(M8X70 FLANGE)(03.306). Required: 02

003 94009660 BOLT. Engine Coolant Thermostat. Fuel Injection. Fuel Injector Pump. Intake & Exhaust Manifold.
BOLT,F/INJN PUMP BRKT(M8X28)(03.278). Required: 02
BOLT,F/INJN PUMP BRKT(M8X28)(03.278)(v)0280808280. Required: 02

004 97328578 BRACKET. Fuel Pump. Fuel Injector Pump. PLATE.
PLATE,F/PMP MT. Required: 02
PLATE,F/PMP MT(v)8973285782. Required: 01

005 94011700 GASKET. Fuel Injector Pump. Manifold to Cylinder Head.
GASKET,F/INJN PUMP. Required: 01
GASKET,F/INJN PUMP(O-RING)(v)9095663900. Required: 01

006 94009463 WASHER. Fuel Injector Pump. Steering Knuckle Upper Control Arm.
WASHER,F/INJN PUMP(06.163). Required: 01
For: CK2,3 6.6-1 DURAMAX(LB7) (2001-2004) (2001 - 2004).

007 94009066 NUT. Air Brake Pipe/Hose. Fuel Injector Pump.
NUT,F/INJN PUMP DRVN GR(04.866). Required: 01
NUT,F/INJN PUMP DRVN GR(04.866)(v)9991115180. Required: 01

008 97226128 GEAR. Fuel Injector Pump
GEAR,F/INJN PUMP DRVN. Required: 01
GEAR,F/INJN PUMP DRVN(v)8972261281. Required: 01

009 97232540 TUBE. Fuel Line
TUBE,FUEL FEED. Required: 03
TUBE,FUEL FEED(v)8972325400. Required: 03

010 97351488 SEAL. Fuel Injector Pump. Fuel Pump Mounting.
SEAL,F/PMP(O RING). Required: 01
SEAL,F/PMP(O RING)(v)8973514880. Required: 01

011 97728979 REGULATOR KIT. Fuel Injection
REGULATOR KIT,FUEL PRESS. Required: 01
REGULATOR KIT,FUEL PRESS(v)2900712000. Required: 01

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Old 03-07-2013, 10:51 PM   #3 (permalink)
imptfgtrz24
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LB7 Fuel Filter Assembly Break Down

**This may Apply to other year Duramax Engines, However confirm with local dealer **



001 97780061 FILTER. Engine Fuel Filter
FILTER,FUEL(INCLS FILTER, ELEMENT, SENSOR, BOLT, BRACKET, STUD, HEATER). Required: 01
For: CK2,3 6.6-1 DURAMAX(LB7) (2001-2004) (2001 - 2004).

002 97363195 PLUG. Engine Fuel Filter
PLUG,FUEL FLTR HOLE. Required: 01
For: CK2,3 6.6-1 DURAMAX(LB7) (2001-2004) (2001 - 2004).

006 12633243 FILTER KIT. Engine Fuel Filter

007 97384931 SENSOR. Fuel Injector Pump. Fuel Tank Meter/Pump.
SENSOR,WAT IN FUEL IND. Required: 01
For: CK2,3 6.6-1 DURAMAX(LB7) (2001-2004) (2001 - 2004).

010 94012127 BOLT. BOLT. Body Mounting. Body to Frame. Chassis/Engine Wiring Harness. Emission Control System. Engine Coolant. Engine Coolant By-Pass. Engine Coolant Thermostat. Engine Fuel Filter. Engine Fuel Intake Manifold. Engine Oil Cooler. Engine Oil Pump. Fan and Coolant Pump. Fuel Line. Intake & Exhaust Manifold. Transfer Case Shift Control. Turbocharger/Supercharger. Turbocharger/Supercharger Oil Drain. Wiring Junction.
BOLT,FUEL FLTR(M8X25 FLANGE)(03.336). Required: 02
For: CK2,3 6.6-1 DURAMAX(LB7) (2001-2004) (2001 - 2004).

011 97941205 BRACKET. Engine Fuel Filter
BRACKET,FUEL FLTR. Required: 01
For: CK2,3 6.6-1 DURAMAX(LB7) (2001-2004) (2001 - 2004).
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Old 03-08-2013, 07:39 AM   #4 (permalink)
rs72z
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Sticky!
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Old 04-02-2013, 08:43 PM   #5 (permalink)
habanero
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Just wondering if anyone had the part number for #42 in the first breakdown. Or is it the same as #34 (which is listed under two part numbers??). I know it's not the same as the seal on the FICM end...
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Old 04-03-2013, 07:34 AM   #6 (permalink)
habanero
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Never mind...I found it. It's 97250485.
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Old 11-17-2015, 08:49 PM   #7 (permalink)
premierjax
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Does anyone know where the RR fuel return line connects to? It would be # 11 in the first diagram above. Im in the middle of a HG job and putting it back together and cant for the life of me remember where it goes, I know it is on the outside of the valve cover on the drivers side rear and you cant really visualize it when taking it apart. Any help would be greatly appreciated.
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Old 11-17-2015, 09:21 PM   #8 (permalink)
TheBac
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Doesnt that one screw into the head at the rear?
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Old 11-18-2015, 07:35 PM   #9 (permalink)
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Quote:
Originally Posted by TheBac View Post
Doesnt that one screw into the head at the rear?
I just put the heads back on today and thats right Bac it bolt right into the head...... thanks for the reply. I have another question for you, I just put arp head studs in. I ran a thread chaser down every hole and holes were fairly clean, I didnt however clean holes out with break cleaner now Im reading more and more online and they say if you dont clean out the holes good you will vapor lock the hole and it could leak!!! At this point I have the heads on and torqued, do you think I need to take it apart and clean the holes better?
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Old 02-26-2016, 10:56 AM   #10 (permalink)
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does anyone know what function #35 does?

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