Stock Replacement Parts
DPS OEM-Fit Diesel Components for Cummins
Need a direct-fit replacement without sacrificing quality? Diesel Power Source stock-fit turbos and exhaust manifolds are engineered to meet or exceed OEM specifications for 5.9L & 6.7L Cummins and selected ISX15 applications—delivering reliable sealing, proper sensor fitment, and long service life.
This category is focused on factory-equivalent, emissions-compatible replacements. If you’re looking for larger-frame performance turbos, compounds, or T4 conversions, use the links in the related categories section below. Product pages include year-specific notes, contents, and install guidance.
Why choose DPS stock-replacement parts
- OEM geometry & fitment: Correct flange patterns, actuator/sensor provisions, and hardware locations for a straightforward install.
- Built to last: Thick-wall castings and precision-machined flanges resist warping and leaks through repeated heat cycles.
- Stable EGT & boost control: Clean internal flow supports consistent turbine speed and drivability under load.
- Emissions-system friendly: Designed to work with factory aftertreatment when installed as directed.
- Fleet & daily-driver ready: Reliable operation for work trucks, tow rigs, and high-mileage use.
Applications covered
- 5.9L Cummins (select years): Stock-frame turbo and manifold replacements for daily use and towing.
- 6.7L Cummins (2007.5+): Direct-fit turbos/manifolds that maintain OE drivability and sensor compatibility.
- ISX15: Heavy-duty replacement manifolds and turbo components for uptime and serviceability.
How to pick the right replacement
- Match your OE part: Confirm model year, turbo/manifold flange, actuator type, and any port/sensor requirements.
- Plan supporting items: Fresh gaskets, studs/nuts, and heat shielding help ensure a durable seal.
- Usage profile: For stock power and towing, choose like-for-like replacement. For future power growth, see performance categories.
Fitment checklist
- Verify turbo flange and downpipe connection style for your model year.
- Confirm actuator/solenoid and sensor provisions (MAP, EGT, drive pressure ports if applicable).
- Inspect manifold sealing faces on the head and turbo; address warpage or carbon tracking before install.
Install & first-drive tips
- Use new gaskets and quality hardware; torque fasteners in sequence on a cold engine.
- Pressure-test the charge-air and exhaust joints before first start to catch any leaks.
- After initial heat cycles, re-check torque where the service manual specifies.
Related categories (for performance paths): 6.7 Cummins Performance Manifolds, Turbonator® VGT Upgrades, S300 Single Turbos, Compound (Add-A-Turbo) Systems.
Shopping by platform instead? Start at Dodge Cummins Performance or Commercial & Semi.
Frequently asked questions
Will these replacements work with my emissions equipment
Yes—these are stock-fit components designed to function with factory systems when installed as directed. Always follow local regulations and product guidance.
Do I need tuning with a stock-replacement turbo or manifold
No tuning is typically required for like-for-like replacements. If you change turbo size or fueling, consider calibration to optimize drivability and temperatures.
How do I confirm I’ve selected the correct part
Match year/engine family, flange type, actuator style, and sensor/porting. If uncertain, contact us with your VIN and existing part numbers.
What should be replaced during install
Plan new gaskets, studs/nuts, crush washers (if equipped), and consider replacing any heat-soaked hardware or warped mating parts.
Are DPS replacements stronger than OEM
Our thick-wall castings and precision-machined flanges are engineered for durability and sealing under repeated heat cycles, meeting or exceeding OE performance in stock applications.
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