Our Stage 2 Cummins Performance Head is designed for the performance enthusiast. Includes everything in our Stage 1 Cummins Performance Head and a D&J Stage 2 Billet Intake Manifold, thread in soft plugs in the head, titanium valve spring retainers, and heavy duty extra...

Our Stage 1 Cummins Performance Head is a step up in performance without the extra expense and work involved with an aftermarket intake. Our Stage 1 Cummins Performance Head includes everything in our Performance Cummins Reman Head along with 115 pound valve springs, 5...

Fleece Performance Cheetah Turbochargers set the industry standard for power, quality, and reliability. The Cheetah series does not require an expensive kit, just bolt it on and go. Designed as a stock appearing, drop in replacement turbocharger capable of much more! With our exclusive...

Replace your cracked, broken, or clogged turbo oil drain tube with our all new silicone hose drain tube kit.? This turbo drain kit is designed for use with all factory VGT turbochargers and aftermarket drop-in replacements. Featuring a larger ID smooth silicone hose and...

Convert your 5.9L CP3 to a newer 6.7L CP3 style pump with our Fleece Performance exclusive 5.9L to 6.7L adaptation kit. The kit includes a new high-pressure fuel line, high flow feed and return fittings for the CP3, CP3 feed line and hose clamps....

S&B Filters cotton filter cold air intake kits are designed to improve airflow and bring down the temperature of the air that enters your engine. To achieve more airflow S&B oiled cotton filters are built with four or eight layers (for diesels) of the...

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...

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...

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...

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 removing the injectors and don't want to reuse the seals? You are making the right choice. Replacing the injector seals is cheap insurance that you won't have an issue when you get the truck back together. Don't risk having to do the...

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...

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...

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...