CPP XD331 CRANKSHAFT DRILL PIN KIT 2001-2016 GM 6.6L DURAMAX LB7/LLY/LBZ/LMM/LML

CPP specifically designed this crank shaft pin kit to fix the all too common shearing of factory dowel pins, resulting in broken crank shafts. This kit can be used on stock or heavily modified vehicles. It has a very simple procedure that can be done by your average skilled mechanic.

Due to the poor design process of keying drive gears on the Duramax crank shaft, a random light vibration can be found during idle. This is found after dampers spin on the crank shaft snout by shearing the factory key. If you were to continue driving with this issue it can raise concerns in regards to harsh harmonics and balancing of the crank shaft. Key your Duramax crank shaft in your own driveway with your own tools

IMPORTANT FITMENT NOTES:

• If using PPE, ATI, or Super Damper, the counterweight must be removed before installing drill collar.
• This kit will not work with Fluidampr Harmonic Dampeners, specifically part numbers 890101, 830111, or 830121.

The CPP XD331 Crankshaft Drill Pin Kit offers a robust solution for GM Duramax 6.6L engines manufactured between 2001 and 2016. Designed with precision, this kit addresses the prevalent issue of factory dowel pin shearing, which can lead to disastrous crankshaft failures. Suitable for both stock and heavily modified vehicles, the XD331 kit ensures that drivers can maintain the integrity of their engine under varying performance conditions.

The innovative design of the CPP kit simplifies the installation process, making it accessible to skilled mechanics and DIY enthusiasts alike. By replacing the weak factory key with a more reliable system, this kit effectively mitigates the vibrations often experienced at idle, a common consequence of the factory drive gear configuration. Such vibrations can lead to severe harmonic imbalances, threatening the overall health of the crankshaft. With the CPP XD331 kit, you can perform this vital enhancement right in your own driveway, utilizing basic tools at your disposal.

However, it is crucial to consider the fitment guidelines when installing the kit. If you are using PPE, ATI, or Super Dampers, ensure that the counterweight is removed prior to installing the drill collar. Additionally, it's important to note that this kit is incompatible with Fluidampr Harmonic Dampeners, specifically part numbers 890101, 830111, and 830121, to avoid any installation issues.

Overall, the CPP XD331 Crankshaft Drill Pin Kit stands out as a necessary upgrade for any Duramax owner serious about engine performance and reliability, offering peace of mind and enhanced durability for your vehicle's most critical components.