SS Hex Exhaust Manifold Bolt Kit

Features:

• High strength 8740 chromoly steel construction
• Fits 2003-2025 Cummins 5.9L/6.7L
• Hex head design for easy installation
• Provides superior exhaust manifold clamping force
• Helps prevent exhaust leaks under heat cycles
• Reduces risk of manifold warping over time
• Black oxide coating resists corrosion
• Designed for high heat exhaust environments
• Maintains consistent gasket sealing pressure
• Ideal for performance and heavy duty use
• OEM heat shield not compatible

Keep Your Cummins Exhaust Sealed Tight Under Real Heat And Load

If you have ever dealt with ticking sounds or soot buildup around your exhaust manifold, you already know how frustrating weak hardware can be. This ARP exhaust manifold bolt kit is built to solve that problem with strength you can count on, especially when your truck is working hard or making more power than stock. Right away, you get a more secure hold that helps keep the manifold tight against the head, even as temperatures climb and drop during daily driving. Additionally, this added clamping force goes a long way in preventing leaks that tend to show up over time with factory bolts. The hex head design also makes installation straightforward, which is always a win when you are working in tight engine bay spaces. What’s more, the durability of these fasteners means you are not revisiting the same repair down the road. It is the kind of upgrade that makes sense whether you are maintaining a work truck or building something with more performance in mind. Once installed, you can focus on driving instead of chasing exhaust issues.

Engineered Fastener Strength Built For Extreme Cummins Exhaust Conditions

The ARP 447-1101 exhaust manifold bolt kit is designed for 2003-2025 Dodge Ram Cummins 5.9L and 6.7L engines, providing a durable solution for high heat applications. Each fastener is manufactured from premium 8740 chromoly steel, delivering excellent tensile strength and resistance to fatigue under repeated thermal cycling. Furthermore, the black oxide coating adds corrosion resistance, helping the hardware maintain integrity in harsh exhaust environments. The hex head design allows for easy installation with standard tools, while also improving engagement in confined areas around the manifold. Proper clamping force is critical in preventing manifold movement, which can lead to gasket failure or warping over time. Additionally, this kit is designed to maintain consistent sealing pressure, supporting long term reliability in both stock and performance setups. It is important to note that the OEM heat shield is not compatible with this kit due to the hardware design. Altogether, this setup delivers a well engineered fastening solution built to handle the demands of Cummins exhaust systems.

Fitment: 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 Dodge RAM 2500/3500 5.9/6.7L Cummins No Spacers

Notes:

• Fits 2003-2025 Cummins 5.9L and 6.7L engines
• OEM heat shield cannot be reused
• Designed for exhaust manifold applications only
• Follow ARP torque specifications during install
• ARP lubricant recommended for accurate torque
• Ensure mating surfaces are clean and flat
• Check manifold for warping before install
• Ideal for high heat and performance applications
• Not a direct reuse of factory hardware specs
• Professional installation recommended for best results
• Verify proper tightening sequence during install