The 7443K Installation Kit is a complete set of gaskets and seals needed to install our Big Boss Exhaust Manifold on Cummins ISX and X15 Engines. 

Included with the kit:

• Turbo Flange Gaskets
• Exhaust Gaskets for Manifold to Head
• New EGR Bellow
• Bellow Clamps
• EGR Steel Gaskets
• Turbo Connection Banjo Washers
• Turbo Connection O-ring Seals

For Use with Big Boss Exhaust Manifold PN 7443

Available for: 2010-2022 Cummins ISX and X15 Engines