OE and Replacement Parts

Control the valvetrain in your modified 1998.5-2018 Dodge 5.9L Cummins with the XDP Heavy Duty High Boost Valve Spring Set XD390. The XD390 Valve Spring Kit is designed to help eliminate valve float due to elevated cylinder pressures and higher boost...

Fortify the valvetrain in your 1989-1998 Dodge 5.9L Cummins when you install the XDP Performance Valve Springs and Retainer Kit XD389. Valve springs are a vital upgrade that are often ignored in many performance builds. The stock valve springs in your...

The XDP Heavy Duty High Boost Valve Spring Set XD388 is an essential upgrade to strengthen and gain control of the valvetrain on your 2003-2010 Ford 6.0L/6.4L Powerstroke. These valve springs deliver improved valve control over a factory valve spring...

The XDP 3/8 inch Street Performance Pushrods XD387 will strengthen the weak link in the valvetrain of your 2017-2020 GM 6.6L Duramax L5P. The stock pushrods in your Duramax engine can barely handle stock power levels. With greater cylinder pressure and...

The XDP Performance Valve Springs and Retainer Kit XD386 are a perfect upgrade for your modified 2001-2016 GM 6.6L Duramax. Camshaft upgrades and other modifications that increase boost require more valve control. The XDP Performance Valve Spring feature...

The XDP Rocker Arm Shafts XD385 are specially designed to minimize the common oiling issues in the 2001-2019 GM 6.6L Duramax engines. From the factory, the oil supply to the rocker arm is shut off as the valve is opened. This lack of lubrication can...

The XDP Billet Rocker Arm Valve Bridge Set XD384 will greatly improve the factory valvetrain in your modified 2001-2016 GM 6.6L Duramax. The OE rocker arm bridges in your valvetrain were designed for stock output levels. Once modified, your Duramax...

The XDP Billet Rocker Arm Valve Bridge Set XD383 will enhance the stock valvetrain in your modified 2003-2007 Ford 6.0L Powerstroke. The stock rocker arm bridges in your engine were designed for stock power levels. Add in the stress from common...

The XDP Billet Rocker Arm Valve Bridge Set XD382 are an excellent upgrade to the valvetrain in your modified 2008-2010 Ford 6.4L Powerstroke. The stock rocker arm bridges in your truck were engineered for stock output levels. The added load and stress...

Change the valve springs in your 1989-1998 Dodge 5.9L Cummins with the XDP 12V Valve Spring Compressor Tool XD312. Whether you're a technician or an enthusiast, using the right tool for the right job saves you time, money, and frustration. XDP's Valve...

Enhance the charging system in your 2011-2019 GM 6.6L Duramax with the XDP Wrinkle Black HD High Output Alternator XD350. While many Duramax owners upgrade their truck for performance, the charging system is often overlooked until there is an issue...

The XDP Wrinkle Black HD High Output Alternator XD351 improves the capability of the charging system in your 2007.5-2010 GM 6.6L Duramax LMM and also increases underhood aesthetics. The LMM Duramax is known as an easy to modify workhorse, but the...