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USD 533.92
Part #: COMPRO3009T

Cometic PRO3009T StreetPro Top End Gasket Kit

2004.5-2007 GM 6.6L Duramax LLY/LBZ
Part #: COMPRO3009T
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The Cometic PRO3009T StreetPro Top End Gasket Kit for your 2004.5-2007 GM 6.6L Duramax LLY/LBZ provides the necessary gaskets and seals to reseal the top end of your Duramax engine. Protect your engine, time and money with Cometic StreetPro Gasket Kits. Cometic Gasket has spent hundreds of hours of research and development building these kits to make sure each part was built from the best material available and that every needed gasket or seal was included. StreetPro is a race proven line of gasket kits for the street that offers the same proven technology used in championship winning race vehicles around the world. 

  • 4.100" Bore
  • 0.40" MLS Head Gasket
  • Built From The Best Materials
Top End Kit Includes:
.040" MLS Head Gaskets w/ 4.100" Bore
MLS Exhaust Manifold Gaskets
Intake Manifold Kit
Thermostat Housing Gaskets
Valve Stem Seals
Water Pipe Gaskets
Injection Nozzle Kit
Air Injection Seals
Throttle Body Gasket
EGR Valve Gaskets
Turbo Gasket Kit
Valve Cover Set
EGR Inlet Gasket
Water Outlet Gaskets
Exhaust Pipe Gaskets
Rocker Cover Gaskets


  • MFG. Number PRO3009T
  • Manufacturer Name Cometic Gasket
  • Shipping Weight 13.00 lb.
  • Shipping Length 27.5 in.
  • Shipping Width 12.5 in.
  • Shipping Height 2 in.
  • Fuel Type Diesel
  • UPC 191070009960
  • Prop 65 WARNING: Cancer & Reproductive Harm -


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XDP continues to closely monitor the COVID-19 (Coronavirus) outbreak. As an integral part of the automotive supply chain, at this point all call centers and distribution centers remain fully operational to ensure we keep vital service components flowing to vehicles used in transport of goods and emergency response. To ensure the health of our employees, families, and customers, we have made the following procedural changes:

  • Effective 3/16 we have shifted Customer Service hours to 8:30 – 7:00pm EST. To ensure compliance with New Jersey’s recent curfew.
  • Effective 3/18 we have decided to temporarily close both of our retail stores in NJ and NV.
  • Our technical sales team remains available Mon-Fri 8:30am-9pm and Saturday 10:30am-7pm EST.
  • All employees have been encouraged to follow the CDC's recommendations at home and in the workplace.
The circumstances of this virus are fast moving, as such, we will continue to update you with any further operational adjustments as needed. As always, we value your business and appreciate your patience as we manage this situation together.