The 6.7 Cummins Parts Most Likely to Need Replaced
November 21, 2023

The 6.7 Cummins Parts Most Likely to Need Replaced

Written By: ProSource Diesel

The 6.7 Cummins engine saw significant changes in 2007 when it was introduced to replace the previous 5.9 24V engine. This is still considered the Cummins B-Series engine due to the same architecture being carried from 1989, but the current version uses several technologies that weren’t even on the radar in the passenger diesel engine market only a few years before it came out.

The new 6.7 Cummins engine featured new diesel parts technology like digital common-rail injection, variable geometry turbocharging, exhaust gas recirculation, a closed crankcase, lean-operation catalytic converters, and diesel particulate filters.

As this engine is quite modern, the diesel truck parts you’re likely to replace will either be upgrades or 6.7 Cummins parts that you want to replace proactively before they fail. As with many diesel engines, the aftermarket Cummins diesel parts are often better than factory parts.

High Flow Exhaust Manifold for 2008-2018 6.7L Cummins 24V

This high-flow exhaust manifold falls under the category of 6.7 Cummins performance parts that you should consider to get more out of your truck. Testing shows that this aftermarket manifold outflows the factory exhaust manifold by nearly 50%, which improves overall performance.

The wall is designed extra thick to increase strength and eliminate warping and cracking. The merged runner design and matched ports also reduce the backpressure, which maximizes flow. By installing this upgrade, you’ll see shorter times for turbo spool-up and quicker throttle response.

Rocker Arm Assembly for 98.5-18 5.9L 6.7L Cummins 24V

The 6.7 Cummins Parts Most Likely to Need Replaced

You might consider replacing your rocker arm assembly if it’s showing signs of wear, or if you want to be proactive in upgrading before failure. A bad rocker arm usually presents with symptoms of reduced power or slow acceleration.

A rocker arm works to ensure that the valves open and close at the correct time, so failure typically causes performance issues. This replacement kit includes all the parts necessary to upgrade the entire assembly. This part is also available in a set of six.

Turbo Speed Sensor for 13-18 6.7L Cummins 24V

The 6.7 Cummins Parts Most Likely to Need Replaced

A turbo speed sensor is critically important to accurately identify how fast the turbo is spinning and where the engine operates on the compressor map. A bad turbo speed sensor might cause transmission problems, erratic speedometer readings, and a lack of torque converter clutch application.

It may also trigger the check engine light and cause you to be unable to use cruise control. This turbo speed sensor by Spoologic fits the 6.7 Cummins engine made between 2013 and 2018.

Transmission Oil Cooler for 2003-2009 Dodge Cummins 5.9L 6.7L 24V

The 6.7 Cummins Parts Most Likely to Need Replaced

This transmission oil cooler by TrackTech fits the early models of the 6.7 Cummins engine from 2007.5 to 2009. Transmission coolers work like heat exchangers by circulating hot transmission fluid through the unit, cooling it down, and then cycling it back through the transmission.

If you tow a lot with your truck, this is one of those Dodge Cummins parts that can drastically improve the life of your transmission.

Fan Pulley Hub Bearing for 89-12 5.9L 6.7L Cummins 12V 24V

The 6.7 Cummins Parts Most Likely to Need Replaced

Instead of replacing your entire fan hub assembly, you might simply need to replace the fan pulley hub bearing. This part fits the 6.7 Cummins engine made between 2007.5 and 2012. If your hub bearing is going out, you might hear a roaring noise or vibration.

This is due to slop in the system as the bearing fails. A new hub bearing should fit snugly and eliminate noise and vibration.

HE351VE Upgraded Compressor 24V Housing / 63mm Billet Wheel for 07.5-12 6.7L Cummins

The 6.7 Cummins Parts Most Likely to Need Replaced

This upgraded compressor 24V housing plus 63mm billet wheel kit fits the 6.7 Cummins engine made between 2007.5 and 2012. Featuring a larger inducer and exducer versus the factory part, this upgrade significantly enhances the airflow and compression inside your turbo. If you’re upgrading for more horsepower, this kit can support up to 600 horsepower.

This is one of the most important upgrades you can get for your 2007.5 through 2012 Cummins engine as it greatly outperforms the stock compressor wheel. It corrects boost limits, improves performance at high boost levels, adds great turbo sound, lowers smoke, and eliminates compressor surge.

6.7L 4306993 68210175AA Fuel Rail Pressure Sensor for 13-18 Dodge Ram 24V Cummins Diesel

The 6.7 Cummins Parts Most Likely to Need Replaced

The most obvious symptom of a failing fuel rail pressure sensor is reduced fuel economy. If your truck suddenly seems to be using more fuel than usual, this sensor might have a problem. Other symptoms include hesitating, stalling while accelerating, or failing to start after initially cranking.

This replacement sensor is a genuine OEM part and a perfect fit for 6.7 Cummins engines made between 2013 and 2018.

Complete Top End Cylinder Head Gasket / Studs Service Kit for 2007.5-2018 Dodge Cummins 6.7L 24V

The 6.7 Cummins Parts Most Likely to Need Replaced

If you’re planning to do a top-end rebuild, including the head gasket and studs, this kit is a comprehensive replacement that will increase the overall strength of your top end. TrackTech head studs are designed with the highest tensile strength in their class and are the proven choice for 6.7 Cummins engines made between 2007.5 and 2018.

As this is a major repair and rebuild, you may need additional items with this kit, including a thermostat, CCV filter, fuel filter, oil change kit, coolant change kit, and engine air filter.

5 Ply Silicon CAC Intercooler Boot Kit 2013-2018 6.7L Cummins 24V

The 6.7 Cummins Parts Most Likely to Need Replaced

If you have a 6.7 Cummins engine made between 2013 and 2018, this intercooler boot kit will replace your stock system. Using strenuous testing in extreme heat and cold, this kit is designed to be stronger and outperform the stock system.

It should be the last CAC intercooler boot kit your truck will ever need. Strong enough to withstand 100 PSI of boost, this kit is also ideal for tuned trucks.

You can count on ProSource Diesel for a wide variety of diesel parts that fit the 6.7 Cummins engine, including repairs and upgrades.

Whether you need a kit or a basic replacement part, we have you covered with quality aftermarket diesel parts to fit your Cummins engine as well as Duramax and Powerstroke diesel engines. That’s why ProSource is where the diesel repair shops shop for parts.

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