Cummins ISX & X15 VGT Exhaust Manifold Bolt & Spacer Kit

Replacing the factory VGT exhaust manifold on your Cummins ISX or X15? This complete hardware kit includes everything needed to properly reinstall the OEM-style manifold, eliminating the need to reuse old, heat-cycled hardware or make an extra trip to the parts store.

Designed specifically for factory VGT (Variable Geometry Turbocharger) exhaust manifold applications, this kit includes 12 standard-length manifold bolts and 12 standard-length manifold spacers for a straightforward, professional installation.

Kit Includes

• 12 Standard-Length Exhaust Manifold Bolts
• 12 Standard-Length Exhaust Manifold Spacers

Features

• Complete bolt and spacer kit for factory VGT exhaust manifold installations
• Includes 12 standard-length bolts and 12 standard-length spacers
• Direct replacement for OEM Cummins hardware
• Restores proper manifold clamping and alignment
• Eliminates the need to reuse worn or corroded hardware
• Heavy-duty components designed for high-temperature diesel applications

Fits

• Cummins ISX CM870
• Cummins ISX CM871
• Cummins ISX CM2250
• Cummins ISX CM2350
• Cummins X15
• Factory VGT exhaust manifold applications only

Important Fitment Information

This kit is designed exclusively for factory VGT exhaust manifold applications.

Unlike aftermarket T6 manifold conversions, the OEM VGT manifold maintains a consistent mounting height across all twelve manifold mounting locations. As a result, all twelve bolts and all twelve spacers are the same standard length, providing even clamping force across the entire manifold.

If your engine has been converted to a non-VGT T6 exhaust manifold, you will need our T6 Manifold Bolt & Spacer Kit, which includes 10 standard-length bolts and spacers plus 2 shorter bolts and spacers to compensate for the lower turbo mounting flange.

Why Replace the Hardware?

Exhaust manifold hardware is subjected to years of extreme heat, vibration, and corrosion. Over time, bolts can stretch or seize, while spacers can become worn or damaged. Reusing old hardware can lead to inaccurate torque readings, uneven clamping, exhaust leaks, broken hardware, and premature manifold failure.

Installing new hardware whenever the manifold is removed is inexpensive insurance that helps ensure a reliable, leak-free repair and long service life.

Whether you're replacing a cracked factory manifold, servicing your VGT turbocharger, or refreshing your exhaust system, this complete hardware kit provides the correct OEM-style bolts and spacers needed to get the job done right the first time.