2002-2009 Cummins 5.9L/6.7L 3rd Gen Dual Zone Blend Door Set (DT-4DR-Y) 1994 - 2000 GM Fuel Systems

2002-2009 Cummins 5.9L/6.7L 3rd Gen Dual Zone Blend Door Set (DT-4DR-Y) 1994 - 2000 GM Fuel Systems2002 2009 Cummins 5. 9L 6. 7L 3rd Gen Dual Zone Blend Door Set (DT 4DR Y) This is a set of the two piece upper and two piece lower blend doors for a dual zone system. These are the doors in the center of the box that are above and below the heater core and control your temperature. All parts are CNC machined from solid aluminum and are guaranteed for life. Our doors will only fit our aluminum drivers. We have had several customers contact us because

especially if the engine has been modified

For best performance

more power

BD manifold

2001-2005 Duramax LB7/LLY Mahle Set of 4 Pistons w/ Rings Left Bank - Standard (224-3451WR)

Must Use #110 Springs Above 4

Driven BR30 promotes proper surface mating during the critical break-in process and chemically assists with piston ring sealing

Built from a brand new genuine Holset stock turbo

All MAHLE Original Pistons are manufactured to the most stringent tolerances with coated skirts to minimize friction and scuffing

Brand new Clean Custom series injector set

9L Mahle Set of 6 Pistons w/ Rings Right Bank - Standard (224-3673WR)

Remanufactured injectors at 150 percent over