Duramax LB7 6.6 L 2001-2004.5

This set includes 4 common sizes of diesel injector caps/block-off tools, giving you the versatility to work on and diagnose fuel system issues on Powerstroke, Duramax, and Cummins engines.
The TamerX TXCT-PKG2 Diesel Fuel Injector Cap/Block-Off Tool Set includes the following tools:
1- 12mm Cap for 2008-2010 6.4L Ford Powerstroke applications
1- 14mm Cap for 2001-2005 6.6L Chevrolet/GMC Duramax applications (LB7 & LLY) and 2003-2007 5.9L Dodge/Cummins applications
1- 16mm Cap for 2011-2016 6.6L Chevrolet/GMC Duramax applications (LGH & LML)
1- 18mm Cap for 2006-2011 6.6L Chevrolet/GMC Duramax applications (LBZ & LMM) and 2007-2017 6.7L Dodge/Cummins applications

This diesel fuel injector cap/block-off tool set is a toolbox essential for everyone working on Duramax, Powerstroke, and Dodge/Cummins fuel systems.

When a diesel engine fails to start, your first troubleshooting step should be to check fuel rail pressure. If the pressure is low, the most likely culprit is a defective diesel fuel injector returning excess fuel back to the tank. A return flow volume test will allow you to determine if excessive fuel return flow is the issue.

To identify the individual cylinder that is at fault, you will use this cap/block-off tool. The diesel fuel injection line is removed from one cylinder at a time and the cap is then installed on the fuel rail in place of each injection line. When the bad injector is blocked off, the fuel pressure at the rail will increase and your engine will start.

In some situations, it can be useful to have multiple block-off tools, because multiple diesel injectors returning a small amount of diesel fuel will display the same symptoms as an individual diesel injector returning an excessive amount of fuel.

The diesel injector cap tool can also be used for diagnosing engine knocking sounds that could possibly be caused by a diesel injector or a single cylinder issue, especially on engines where you can't use a scan tool or if a scan tool is unavailable.

This set includes 3 common sizes of diesel injector caps/block-off tools, giving you the versatility to work on and diagnose fuel system issues on both Chevrolet/GMC Duramax and Dodge/Cummins engines.
The TamerX TXCT-PKG1 Diesel Fuel Injector Cap/Block-Off Tool Set includes the following tools:
1- 14mm Cap for 2001-2005 6.6L Chevrolet/GMC Duramax applications (LB7 & LLY) and 2003-2007 5.9L Dodge/Cummins applications
1- 16mm Cap for 2011-2016 6.6L Chevrolet/GMC Duramax applications (LGH & LML)
1- 18mm Cap for 2006-2011 6.6L Chevrolet/GMC Duramax applications (LBZ & LMM) and 2007-2017 6.7L Dodge/Cummins applications

This diesel fuel injector cap/block-off tool set is a toolbox essential for everyone working on Duramax, Powerstroke, and Dodge/Cummins fuel systems.

When a diesel engine fails to start, your first troubleshooting step should be to check fuel rail pressure. If the pressure is low, the most likely culprit is a defective diesel fuel injector returning excess fuel back to the tank. A return flow volume test will allow you to determine if excessive fuel return flow is the issue.

To identify the individual cylinder that is at fault, you will use this cap/block-off tool. The diesel fuel injection line is removed from one cylinder at a time and the cap is then installed on the fuel rail in place of each injection line. When the bad injector is blocked off, the fuel pressure at the rail will increase and your engine will start.

In some situations, it can be useful to have multiple block-off tools, because multiple diesel injectors returning a small amount of diesel fuel will display the same symptoms as an individual diesel injector returning an excessive amount of fuel.

The diesel injector cap tool can also be used for diagnosing engine knocking sounds that could possibly be caused by a diesel injector or a single cylinder issue, especially on engines where you can't use a scan tool or if a scan tool is unavailable.

TamerX Cam Crank Sensor Dodge Ram 5.9L,6.7L 2006-2014 Part# 2872277

This package includes eight (8) Cap/Block-Off Tools

The TamerX Diesel Fuel Injector Cap / Block-Off Tool Set for 2001-2005 6.6L Chevrolet/GMC Duramax LB7, LLY is a toolbox essential for everyone working on common rail fuel systems.

When a common rail engine fails to start, your first troubleshooting step should be to check fuel rail pressure. If the pressure is under 5,000 PSI (on a 6.6L engine), the most likely culprit is a defective diesel fuel injector returning excess fuel back to the tank. A return flow volume test will allow you to determine if excessive fuel return flow is the issue.

To identify the individual cylinder that is at fault, you will use this cap/block-off tool. The diesel fuel injection line is removed from one cylinder at a time and the cap is then installed on the fuel rail in place of each injection line. When the bad injector is blocked off, the fuel pressure at the rail will increase and your engine will start.

In some situations, it can be useful to have multiple block-off tools, because multiple diesel injectors returning a small amount of diesel fuel will display the same symptoms as an individual diesel injector returning an excessive amount of fuel.

The diesel injector cap tool can also be used for diagnosing engine knocking sounds that could possibly be caused by a diesel injector or a single cylinder issue, especially on engines where you can’t use a scan tool or if a scan tool is unavailable.

This package includes one (1) Cap/Block-Off Tool

The TamerX Diesel Fuel Injector Cap / Block-Off Tool for 2001-2005 6.6L Chevrolet/GMC Duramax LB7, LLY is a toolbox essential for everyone working on common rail fuel systems.

When a common rail engine fails to start, your first troubleshooting step should be to check fuel rail pressure. If the pressure is under 5,000 PSI (on a 6.6L engine), the most likely culprit is a defective diesel fuel injector returning excess fuel back to the tank. A return flow volume test will allow you to determine if excessive fuel return flow is the issue.

To identify the individual cylinder that is at fault, you will use this cap/block-off tool. The diesel fuel injection line is removed from one cylinder at a time and the cap is then installed on the fuel rail in place of each injection line. When the bad injector is blocked off, the fuel pressure at the rail will increase and your engine will start.

In some situations, it can be useful to have multiple block-off tools, because multiple diesel injectors returning a small amount of diesel fuel will display the same symptoms as an individual diesel injector returning an excessive amount of fuel.

The diesel injector cap tool can also be used for diagnosing engine knocking sounds that could possibly be caused by a diesel injector or a single cylinder issue, especially on engines where you can’t use a scan tool or if a scan tool is unavailable.

This fuel filter adapter kit allows you to use the better-performing and less expensive CAT 1R-0750 Fuel Filter on your Chevrolet or GMC vehicle with Duramax Diesel 6.6L engine. This system will provide superior filtration than the OEM version.

Product Features:

-Includes anodized blue billet aluminum adapter, all necessary Viton O-rings, 1 fuel filter nipple, 1 brand new 2 micron Advanced High Efficiency Fuel Filter (equivalent to the CAT 1R-0750), 1 billet aluminum spacer plate with hardware (short and long bolts), and a complete fuel filter base/hand primer seal rebuild kit.
-All components CNC machined from solid billet aluminum/stainless steel for a precise fit each and every time.
-Backed by our 12 month unlimited mileage warranty
-Installs in minutes with basic tools.

Additional Product Information:

-Recommended service interval for CAT 1R-0750 Filter: 10,000 Miles
-Includes billet aluminum spacer plate and mounting bolts to offset filter head from the OEM stock position. Includes both short bolts (2001-2010) and long bolts (2011+) to fit any year Duramax 6.6L.
-Be sure to unplug the water separator and tie it out of the way. This will not cause the computer to issue any DTC codes or a Check Engine Light and it is completely safe.

Mass Air Flow Sensor (MAF Sensor) for 2001-2005 Chevrolet/GMC Duramax 6.6L Diesel Applications

TamerX: ISK951

OEM: 88892543

TamerX Diesel Fuel Injector

Application:

Make: Chevrolet/GMC

Engine: 6.6L LB7

Year: 2001-2004

Part#: DE651

OEM: 97729095

Features:

Re-Manufactured with OEM Bosch Components

• New Nozzles
• New Control Valves
• New Seals
• 12 Month, 1,000,000 Mile Warranty

Genuine GM

Diesel Fuel Injector for a Chevrolet/GMC 6.6L 2001-2004 Part # 97729095

Diesel Specialists Diesel Fuel Injector Set

 This is a set of 8 diesel fuel injectors for the following application:

Application:

   Make: Chevrolet/GMC

   Engine: 6.6L LB7

   Year: 2001-2004

Part # DE651SET

Features:

"Re-Manufactured with OEM Bosch Components"

• New Nozzles
• New Control Valves
• New Seals
• 12 Month, 1,000,000 Mile Warranty

OEM: 97729095

Diesel Specialists 2001-2004 Chevrolet/GMC 6.6L Diesel Fuel Injector/CP3 Injection Pump/Valve Cover Gasket Package #DE651PKG

This is a complete package that includes all 8 diesel fuel injectors, 1 high pressure fuel injection CP3 pump, and 2 valve cover gaskets for 2001-2004 Chevrolet and GMC models with 6.6L Duramax diesel engines. All included parts are 100% remanufactured with all OEM components.

Application:

Make: Chevrolet/GMC

Engine: Duramax 6.6L

Years: 2001-2004

Included Part Numbers:

• (8) DE651 Diesel Fuel Injectors
• (1) HPP7303 High Pressure Fuel Injection CP3 Pump
• (2) 97188896 Valve Cover Gaskets

OEM# (Diesel Fuel Injectors):97729095

OEM# (Fuel Injection CP3 Pump): 97720662

OEM# (Valve Cover Gasket): 97188896

Price: $1995.95

Core Charge: $800.00

Part Number: DE651PKG

Fuel System Details

High-pressure common-rail injection technology has revolutionized the diesel industry. Over the last decade, it has allowed engine builders to run higher injection pressures (as much as 29,000 psi in the new LML Duramax and 6.7L Powerstroke) in order to increase efficiency, while greatly reducing emissions. Use of the common-rail system has also facilitated multiple injection events (making diesels quieter). The icing on the cake is that these cleaner-burning engines produce much more power than their predecessors.

CP3 Primary Function

The CP3 injection pump’s sole function is to create and regulate high-pressure fuel (it’s not timed with the engine’s crankshaft and camshaft). The fact that the CP3 came from Bosch’s heavy-duty line of injection pumps also speaks to its great reliability, as it was designed to play a vital role in million-mile engines.

Diesel Fuel Injector Features

• Remanufactured with OEM Bosch Components
• New Nozzles
• New Control Valves
• New Seals
• 12 Month Unlimited Mile Warranty 

Fuel Return Line Seals for a Chevrolet,GMC 6.6L 2001-2004 Part #s 97228933 and ISK1013

Engine Valve Cover Gasket for a Chevrolet,GMC 6.6L 2001-2004 Part # 97188896 and ISK1012

National Parts Warehouse has many parts available that are not sold separately by OEMs. Years of experience has identified low cost parts that are frequently the cause of failures with larger fuel system products. Those parts could be easily replaced but OEMs often do not make them available separately, necessitating the purchase of an entire product at much greater expense. has been supplying new and remanufactured fuel system products for decades. Their industry-leading remanufacturing process addresses all common failures in the OEM design. Components that typically cause failures are replaced with new components. Rigorous testing, design changes and upgrades ensure products are always as good, and usually better, than the OEM parts. 's goal with every fuel system product is a longer service life than the OEM part. If you are looking for the highest quality fuel system products in the market today, think ! AC Delco Fuel Filter for a Chevrolet/GMC 6.6L 2001-2014 Part # TP3012

Diesel Fuel Injector Seal Kit for a Chevrolet/GMC 6.6L 2001-2004 Part # ISK118

Fuel Filter Housing Spacer for a GMC 6.6L 2001-2010 Part # ISK853

Diesel Glow Plug SET Chevrolet/GMC 6.6L 2001-2004 Part # GP058-8

High Pressure Fuel Injection Pump for a Chevrolet/GMC 6.6L 2001-2004 Part # HP7303

Fuel Injection Pressure Regulator for a Chevrolet GMC, 2001-2004 Part # 47728979