2003-2007 Dodge Ram 5.9 Cummins

2003-2007 Dodge Ram 5.9 Cummins trucks had 3 different turbochargers. The 2003 and 2004 trucks had an he341 turbo which came in 2 variations, 1 had a 53.9mm x 78mm 7+7 blade compressor (same as the 99-02 truck’s hx35 compressor wheel), the other HE341 used a 56mm x78mm 7+7 blade compressor wheel. All turbos used on the 2003-2007 trucks had a 58mm x 65mm 12 blade turbine wheel, which is the same turbine wheel as the HY35 from the automatic 99-02 trucks. 

The 2004.5-2007 truck have a HE351CW turbo, which had an electronic boost control solenoid on the compressor housing that made the boost pressure adjustable via tuning. The HE351CW uses an HX40 59.96mm x 86mm 7+7 blade compressor wheel which is the same wheel used in some HX40 turbos. We carry a lot of parts to upgrade your existing HE351CW in this section of the store.  You can simply your turbo build by purchasing all new parts from our store. I also had bearing housings cut for an oring to seal the compressor housing and bearing housing which these turbos never had from the factory.

      There are 3 upgrades that we commonly suggest:

      Stage 1 start with an HE351CW (59.96mm x 86mm compressor) and add our 67 x 76mm 10 blade turbine wheel and matching turbine housing that we sell. You can also replace the factory cast compressor wheel with our billet compressor wheel.

Stage 2 HE351CW 650hp with a 62.45mm x 86mm billet compressor wheel  and housing + our 67mm x 76mm turbine wheel and housing. We also sell this complete turbo.

Stage 3 725hp + HE351CW 67mm x 89mm billet compressor wheel and housing + 67mm x 76mm 10 blade turbine wheel and housing. 

      I had several people ask me about spool time of the 67mm HE351CW. I have talked to several people regarding this topic. Before doing anything I would do a boost leak test to see if the boost you are creating is leaking out.  If your hoses or intercooler is leaking, the turbos response will be dramatically different than if there aren’t any leaks. I have several videos on my YouTube channel showing my boost leak test results. I spend 45 minutes to 2 hrs running test’s sometimes, it’s very important to do a BLT after installing the turbo because the clamps and hoses will loosen up after they experience compression.

Some people that I have talked to claim that trucks that have 37” tires are better off with the 6267 than the 6767 because they claim the 6767 won’t spool as fast with the bigger tires. I don’t know if this is true or not, I also consider that the HE351CW has a 9 cm turbine housing which helps with spool. 

From my personal experience I always go with the largest turbo available on all of my trucks this gives me the option tune for more horsepower later if I want to. I have never noticed poor performance of spool time but I also boost leak test all of my vehicles frequently. I also only have 35s x 13.5 tires on my truck.