5.9 CR Early (2003-2004) Cummins

Cummins 12mm CP3 High Speed (1,590 mm3 /rev displacement) | New 6.7L-based | with Gen2 SP3000 Mechanical Supply Pump

Cummins 10mm CP3 (1,325 mm3 /rev displacement) | New 6.7L-based

🛠️ Water Bypass Valve Replacement – Direct Fit for Diesel & Performance Applications Restore proper coolant flow and avoid overheating with this Water Bypass Valve Replacement—designed as a direct-fit solution for worn or leaking bypass valves in high-performance and diesel engine cooling systems. A failing water...

Our intake manifold flanges for the 5.9 Cummins are CNC machined in house from 6061 aluminum Key Features: - They are designed to fit a 3.5” OD tube and are multi axis machined to ensure proper air flow - This flanges are perfect for...

  5.9 CR HP Reman Cylinder Head Our 5.9 CR Performance Cummins Reman Head includes essential upgrades to ensure durability and reliability, addressing common issues associated with these heads. One prevalent problem with factory and many aftermarket heads is the valve seats loosening and...

5.9 Common Rail Cummins Precision Plus Reman Long Block Our 5.9 Common Rail Cummins Precision Plus Reman Long Blocks come fully assembled, including the oil pan and front timing cover. We use only the best products from our years of experience in the high-performance...

🚀 Turbo Screen Guard with Velocity Stack – High-Flow Protection in Style Protect your turbo without sacrificing performance. Our Turbo Screen Guard with integrated Velocity Stack is engineered for maximum airflow while offering protection from large debris. Built for high-performance turbo and supercharger setups, this...

🛠️ Universal Boost Leak Tester Kit – Fits Most Turbocharger Inlets | Billet Plug, Silicone Coupler & T-Bolt Clamps Boost leaks rob your turbocharged engine of power, response, and efficiency. The best way to find them? Pressurize the entire intake system—and our Boost Leak...

🔍 Universal Turbo Boost Leak Tester Kit – Billet Plug, Silicone Boot & T-Bolt Clamps Stop chasing down boost leaks the hard way—pressurize your entire intake system and locate leaks quickly with our Universal Boost Leak Tester Kit. Designed to fit virtually any turbocharger inlet,...

This part can be used as a direct replacement for Bosch part number 0 445 226 014, as well as Cummins part number 4929618, 3957077, and 5086869AB.  

Are you seeing intermittent rail pressure fluctuations that are causing running issues? The rail pressure sensor may be the root cause.   The fuel pressure sensor is a crucial part of the high pressure fuel system. It effectively measures fuel pressure allowing for proper...

Do you have an engine lope at idle or surging while driving? Are you seeing unusual rail pressure fluctuations? Your 5.9 Inlet Metering Valve may be the root cause.    Also known as the FCA (fuel control actuator) or the MPROP, this component can...

Have your feed tubes been in service for some time?  Might there be a chance that the extended hot cranking you've been experiencing is due to leakage at the feed tube/injector interface? Then we highly recommend that the feed tubes be replaced whenever the...

Are you losing rail pressure from a worn out CP3 pump? Are you in need of a factory replacement CP3 pump? Did you try a "parts kit" on your original pump with no fix? From stock up to 650+HP our Sportsman CP3 pumps are...

One of the biggest pumps on the market with a track record to prove it. A single CP3 pump that will easily support 1200HP and in some applications have gone up to 1500+HP on fuel only! Don’t get caught with dual pump issues when...

Looking for a  single CP3 pump that will support up 1000+HP and drive like stock? Do you want the capability of more power without the worry of a pump controller failing, a custom belt breaking, mount cracking, or even a second pump to worry...

Has your factory pump hit its limit, and you still need more pump capacity? Do you want the capability of more power without the worry of a multi-pump controller failing, a custom length belt breaking or a second pump to worry about? For applications...

5.9 CR Stage 1 Cummins Performance Head   Our 5.9 CR Stage 1 Cummins Performance Head is a step up in performance without the extra expense and work involved with an aftermarket intake. This head includes everything in our HP Reman Head along with...

Have your original or aftermarket injectors left you stranded? Are you cautious to use your truck for what its intended for? Want to feel confident in making that long trip across country or hauling that heavy load for work? Well, look no further than...

Are you looking for an increase in power without sacrificing drivability or reliability? Well, look no further than our 60% over fuel injectors!   The nozzles are enlarged using abrasive flow honing technology and are hydraulically flow matched to less than 1%. Each nozzle...

Core Return: Exergy requires that all cores be returned within 30 days from original purchase of product. If you fail to return the core(s) within 30 days, you will be charged in full for the core(s) ($150 per injector). Cores that have missing and/or...

Have your original or aftermarket injectors left you stranded? Are you looking for an increase in power without sacrificing drivability or reliability? Well, look no further than our 30% over fuel injectors!   At 30% over stock, these are an excellent upgrade for close...

Are you looking for an increase in power without sacrificing drivability or reliability? Well, look no further than our 60% over fuel injectors!   The nozzles are enlarged using abrasive flow honing technology and are hydraulically flow matched to less than 1%. Each nozzle...

Have your original or aftermarket injectors left you stranded? Are you looking for an increase in power without sacrificing drivability or reliability? Well, look no further than our 45% over fuel injectors!   The nozzles are enlarged using abrasive flow honing technology and are...

So, you're ready to push the limit of your build and want to find an injector you can trust to take you to the podium? With our background in OE development, manufacturing and pioneers of the performance common rail fuel systems, you can trust...