PPE Exhaust Manifold Stud Nut Washer Kit

1998–2018 Dodge Ram 5.9L & 6.7L Diesel

Part #: 216110200

Overview

The PPE Exhaust Manifold Stud, Nut, and Washer Kit is a premium replacement fastener set engineered specifically for Dodge Ram trucks equipped with Cummins 5.9L and 6.7L diesel engines from 1998 through 2018. Designed to address common issues caused by factory exhaust manifold bolts such as heat fatigue, stretching, and corrosion, this kit restores the integrity of your exhaust manifold connection to prevent leaks and maintain optimal engine performance.

Ideal for diesel truck owners, fleet operators, and performance enthusiasts, this kit ensures a secure, leak-free seal that withstands the extreme thermal cycling and heavy-duty conditions typical of Cummins diesel applications. Whether you are maintaining your factory manifold or upgrading to an aftermarket option, PPE’s stud, nut, and washer kit delivers reliable fastening strength and long-lasting durability.

Key Features

Engineered for strength, precision, and corrosion resistance, the PPE Exhaust Manifold Stud Nut Washer Kit offers the following benefits:

• Centerless ground and rolled studs for enhanced tensile strength and reduced stress concentrations
• Stud and nut design allows for accurate torque application and even load distribution
• Includes 12-point flange nuts for superior fastening security and improved torque control
• Black oxide finish on all fasteners provides corrosion resistance and a durable appearance
• Prevents exhaust leaks caused by stretched or fatigued factory bolts
• Compatible with aftermarket exhaust manifolds on 1998–1998 5.9L 12-valve Cummins engines
• Fits 1998.5–2002 5.9L 24-valve, 2003–2007 5.9L 24-valve (requires factory heat shield removal), and 2007.5–2018 6.7L 24-valve Cummins engines

Construction & Design

Each stud in this kit is precision-engineered using centerless grinding and rolling processes that enhance material strength and minimize stress risers. This manufacturing technique produces studs that resist fatigue and stretching far better than standard factory bolts, ensuring a longer service life under harsh under-hood conditions.

The black oxide coating on all studs, nuts, and washers acts as a protective barrier against rust and corrosion, preserving the fasteners’ integrity and appearance over time. The 12-point flange nuts improve the fastening interface by providing a more uniform clamping force and better torque control, which reduces the risk of exhaust leaks and maintains a reliable seal even under extreme thermal cycling.

Installation & Fitment

Installation is straightforward for experienced mechanics and enthusiasts familiar with Cummins diesel engines. The kit replaces factory exhaust manifold bolts with studs, allowing the manifold to be secured using nuts for improved torque accuracy and load distribution. For 2003–2007 5.9L 24-valve engines, removal of the factory heat shield is necessary to access the manifold studs.

This kit fits the following Dodge Ram diesel models and engine configurations:

• 1998–2001 Dodge Ram 5.9L Diesel
• 2002–2009 Dodge Ram 5.9L Diesel
• 2007–2010 Dodge Ram 6.7L Diesel
• 2011–2018 Ram 2500 6.7L Diesel
• 2011–2018 Ram 3500 6.7L Diesel

What's Included

• Precision centerless ground exhaust manifold studs
• 12-point flange nuts
• Washers

Ideal For

This kit is perfect for Cummins diesel truck owners and fleet operators who want to maintain or improve the reliability of their exhaust manifold connections. It is especially beneficial for vehicles experiencing exhaust leaks due to stretched, fatigued, or corroded factory bolts. Additionally, it is an excellent choice for those upgrading to aftermarket exhaust manifolds that require durable, high-quality fasteners engineered for heavy-duty use.

Pacific Performance Engineering (PPE) develops heavy-duty and performance upgrades for trucks and diesel platforms, including differential covers, transmission pans, oiling and cooling components, and other durability-minded parts. PPE products are built to handle heat, load, and power—ideal for tow rigs and performance builds that need stronger hardware and better fluid control.