Lb7 upgraded injectors

Lb7 upgraded injectors DEFAULT
Injectors for Duramax - Duramax LB7 Injectors

Duramax LB7 Diesel Injectors

In need of a replacement Duramax LB7 fuel injector? Or a performance set of injectors to match up with your aftermarket tune? Shop Sinister Diesel's full collection of Duramax LB7 diesel injectors below:

Sinister Diesel Injector Package for 2001-2004  (LB7) DuramaxSinister Diesel Injector Package for 2001-2004 (LB7) DuramaxNew841788103961

We've designed each Injector Package from Sinister Diesel to add needed strength to your engine with a full set of gaskets and injectors to solve one of the biggest problems encountered by owners ...

Item #: SD-INJPKG-LB7Sinister DieselDuramax LB7 Injectors|Head Gaskets|Injector Install Parts/Tools|Injectors


Sinister Diesel Injector Set for (LB7) 2001-2004 GM Duramax (Set of 8)Sinister Diesel Injector Set for (LB7) 2001-2004 GM Duramax (Set of 8)New841788114103

The high-pressure fuel injectors in your Power Stroke Diesel engine are designed to precisely control the delivery of diesel fuel into the combustion chamber. But over time, your stock injectors c...

Item #: SD-LB7INJK-01-20Sinister DieselDuramax LB7 Injectors|New Duramax Products|OEM Duramax|Injectors|Factory GM|New Products


Sinister Diesel Reman Injector for 2001-2004 Duramax LB7Sinister Diesel Reman Injector for 2001-2004 Duramax LB7New841788109451

Sinister Diesel Reman Injector for 2001-2004 Duramax 2500 & 3500 (LB7) The Sinister Diesel Stock Reman Injectors are a perfect replacement injector for someone looking for increased reliabilit...

Item #: SD-INJ-GM-01Sinister DieselDuramax LB7 Injectors|OEM Duramax|Injectors|Factory GM


Industrial Injection Injector Install Kit for 2001-2004 GM Duramax 6.6L LB7Industrial Injection Injector Install Kit for 2001-2004 GM Duramax 6.6L LB7New

2001-2004 6.6 LB7 Injector Install Kit

Item #: 412602Industrial InjectionInjector Install Parts/Tools for Duramax|Duramax LB7 Injectors|Injector Install Parts/Tools



LB7 Duramax Stock Injector Set

LB7 Duramax Diesel Injectors. These are the best quality injectors you can get for your LB7. All our LB7 injectors include the latest updates to cure the common failures associated with the LB7 injectors. Kit includes 8 OEM injectors, copper seal washers, body o-rings, and return line banjo seals.

Warranty. Dan's Diesel Performance offers a 2 year unlimited mileage warranty on our LB7 injectors from date of sale. Warranty covers defects in parts and assembly of the injector. If an injector is found to be defective we will replace it and the needed seals for install free of charge. It is always recommended to replace the high pressure fuel lines and CP3 pump when replacing injectors. We also recommend having a lift pump with filters to keep the fuel supply clean from contamination and air leaks. Injector warranty does not cover failure due to contamination in the fuel.

  • Item Requires Shipping
  • 16.0 lbs.
  • W20.0000” x H10.0000” x L6.0000”

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DDP Performance LB7 Fuel Injector Set

Fits 2001-2004 Chevy / GMC  2500HD / 3500HD / LB7



*This product is ONLY designed for closed course racing where it is legal to do so. Any other use will be in violation of local, state, and federal laws. We are not responsible for unlawful use of this product.*

Fuel delivery is the most important part of any Duramax Diesel motor. These completely balance-honed DDP performance fuel injectors are a work of art. Unlike just adding nozzles, the complete injectors are hand selected and surgically blue printed by the geniuses at DDP. Complete performance injectors are a superior way to add power and mandatory for competition. Injectors are sold as a balanced and matched set.


Set of 8 Complete Remanufactured Performance Fuel Injectors

  • 50HP Injectors: 25% over, approximately 50 RWHP over stock. Safe on stock trucks. Excellent street manners & MPG. Injector set capable of 600-625 RWHP. Pyrometer recommended.
  • 75HP Injectors: 45% over, capable of 725 RWHP. Biggest injector recommended for stock CP3 pump or turbo. Not recommended for frequent or heavy towing applications. 
  • 100HP Injectors: 60% over, capable of 750-800 RWHP. Modified or Dual CP3 and upgraded turbo(s) are mandatory along with custom tuning. Not recommended for towing applications. 

DDP Warranty

  • 1-Year unlimited mileage warranty


If you choose the Core + 10% option on this product, you will receive an additional $140 on top of the $1400 core refund for a $1540 Dmaxstore gift card (once core refund is processed).  Please contact us directly at [email protected] for more information on this option.

LB7 INJECTOR cup install

Genuine Bosch & Performance LB7 Duramax Injectors (2001-2004)


Genuine Bosch stock and Industrial Injection Performance reman Injectors are the pinnacle of what you should expect out of new set of injectors. Each set of injectors are brought in direct from Bosch and then engineered at our facility using extrude hone processes to perfectly balance and match the set. This extensive calibration process is performed to guarantee our customers the smoothest and most reliable injectors the diesel industry has ever seen.


– Smooth Clean Idle

– Improved Mileage

– Direct Replacement

– Multiple Performance Gains

– 1 year Unlimited Mileage Warranty

These injectors come with a new copper crush washer and o-rings for installation. Injectors are an OEM Genuine part that is a direct replacement injector.

Each injector has a $150 core charge and is fully refundable if they are shipped back within 45 days.

All Industrial Injection / OEM products are covered by a one year/unlimited mile warranty.

When replacing the injectors in your LB7 Duramax we highly recommend replacing the injector fuel lines to avoid new injector contamination. The most common failure of new injector installations is contamination and the problem that we see most on these comes from the fuel lines.

NOTE: Fuel Lines MUST be replaced or sent in for cleaning to retain warranty!

*All Industrial Injection Performance Products Are Not Legal For “On-Road”, “Off-Road”, or “Dual-Use”. These Products May Only Be used In “Competition-Only” Vehicles. Compliance With State And Federal Emission Standards Is The Consumer’s Responsibility.

Additional information

Weight2 lbs
Dimensions10 × 4 × 3 in

Bosch, Industrial Injection

Prop 65

WARNING: Cancer and Reproductive Harm –

Core Charge

A Core Charge of $150.00 applies to this part. For more information, CLICK HERE

Injector Size

OE Reman, Dragon Fly 15%, 20% Over, 30% Over, 40% Over, 50% Over, 75% Over, 100% Over, 150% Over, 225% Over


Injectors lb7 upgraded

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LB7 INJECTOR cup install

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