PPE Exhaust Manifold Bolt & Spacer Kit

1998–2018 Dodge Ram 5.9L/6.7L Cummins Diesel

Part #: 216110100

Overview

The PPE Exhaust Manifold Bolt and Spacer Kit is a precision-engineered replacement solution designed specifically for Dodge Ram trucks equipped with 5.9L and 6.7L Cummins diesel engines from 1998 through 2018. Over time, factory exhaust manifold bolts are prone to heat-induced fatigue, corrosion, and stretching, which can lead to exhaust leaks that compromise engine performance and reliability. This kit restores the integrity of the exhaust system by providing durable, high-quality hardware engineered to withstand the extreme thermal cycles typical of diesel applications.

Ideal for Dodge Ram owners and diesel enthusiasts looking to replace worn or rusted manifold bolts, this kit ensures a secure, long-lasting fitment that prevents exhaust leaks, reduces noise, and helps maintain optimal engine operation. Whether you are addressing common factory bolt failures or upgrading to aftermarket manifolds, the PPE kit offers a reliable and professional-grade solution.

Key Features

Engineered for durability and precision, the PPE Exhaust Manifold Bolt and Spacer Kit includes components designed to enhance longevity and performance under harsh conditions:

• Includes 12 flange head exhaust bolts (M10x1.5-60mm) made from Grade 10.9 steel for superior strength and heat resistance
• 12 precision-machined spacers to reduce bolt stress caused by thermal expansion and contraction
• 2 stainless steel socket bolts (M10x1.5-35mm) and 2 stainless steel M10 washers for secure and corrosion-resistant fastening
• Centerless ground and rolled bolts minimize stress concentrations and enhance fatigue resistance
• Black oxide finish on all fasteners provides corrosion protection and a professional appearance
• Designed to mitigate heat-induced bolt stretching and prevent permanent yield or deformation
• Compatible with 2003–2007 5.9L Cummins models (requires removal of factory heat shield)
• Fits 1994–1998 5.9L Cummins engines when used with aftermarket exhaust manifolds (not compatible with OEM manifolds)

Construction & Design

The bolts in this kit are manufactured from high-grade Grade 10.9 steel, delivering exceptional tensile strength and durability to endure the extreme heat cycles of diesel exhaust systems. Each bolt undergoes centerless grinding and rolling processes to reduce stress risers—common failure points in factory hardware—thereby extending service life and maintaining a tight exhaust seal.

Precision-machined spacers compensate for thermal expansion differences between the manifold and bolts, reducing the risk of bolt deformation or breakage. The black oxide finish acts as a protective barrier against rust and corrosion, preserving the fasteners’ integrity even in the harsh under-hood environment of heavy-duty trucks.

Installation & Fitment

Installation of the PPE Exhaust Manifold Bolt and Spacer Kit is straightforward for experienced mechanics and enthusiasts familiar with Cummins diesel engines. This kit is designed to directly replace factory manifold bolts on 1998.5–2018 Dodge Ram trucks equipped with 5.9L or 6.7L Cummins engines. For 2003–2007 5.9L Cummins models, removal of the factory heat shield is required to accommodate the hardware.

Note that this kit fits 1994–1998 5.9L Cummins engines only when paired with aftermarket exhaust manifolds and is not compatible with OEM manifolds from that era. Proper torque specifications should be followed during installation to ensure optimal sealing and longevity.

What's Included

• 12 flange head exhaust bolts (M10x1.5-60mm), Grade 10.9 steel
• 12 exhaust manifold spacers
• 2 stainless steel socket bolts (M10x1.5-35mm)
• 2 stainless steel M10 washers

Ideal For

This kit is ideal for Dodge Ram owners and diesel enthusiasts seeking a reliable, long-lasting solution to exhaust manifold bolt failure on Cummins 5.9L and 6.7L engines. It is especially beneficial for those experiencing exhaust leaks caused by stretched or corroded factory bolts, or anyone upgrading to aftermarket manifolds that require durable, heat-resistant hardware. The PPE Exhaust Manifold Bolt and Spacer Kit ensures a secure exhaust seal, reduces noise and emissions, and helps prevent costly repairs down the road.

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.