Exhaust Manifold Bolt and Spacer Kit with Manifold Gaskets for 1998.5-2018 Dodge with 5.9L/6.7L Cummins

The Exhaust Manifold Bolt and Spacer Kit for 1998.5-2018 Dodge Ram with 5.9L/6.7L Cummins engines is a premium replacement solution designed to address common exhaust manifold bolt failures caused by repeated heat cycles and thermal stress.

What's Included

This comprehensive kit contains all necessary hardware for a complete exhaust manifold installation:

• 12 Grade 10.9 flange head exhaust bolts (M10x1.5-60mm) with 180,000 PSI tensile strength

• 12 black oxide spacers for thermal protection

• 2 stainless steel socket bolts (M10x1.5-35mm)

• 2 stainless steel M10 washers

• Thread lubricant packet for proper installation

Superior Construction

Chromoly alloy steel construction with Grade 10.9 rating provides the perfect balance of high strength and toughness. Each bolt is centerless ground and rolled with extreme precision to reduce stress concentrations and increase durability. The black oxide finish provides corrosion resistance while the non-zinc plating prevents zinc embrittlement.

Key Benefits

The included spacers are critical - they mitigate heat expansion effects on the bolts and prevent permanent yield, ensuring the fasteners operate within their elastic stretch range without fracture. This design addresses the primary failure mode of factory bolts, which stretch and fatigue after numerous heat cycles, leading to exhaust leaks and potential breakage.

Applications

Compatible with 1998.5-2018 Dodge Ram equipped with:

• 5.9L Cummins engines (2003-2007 requires removal of factory heat shield)

• 6.7L Cummins engines (2007.5-2018)

• Will also fit 1994-1998 5.9L with aftermarket manifolds (not compatible with OEM manifolds)

This professional-grade hardware kit is essential for anyone performing exhaust manifold work on Cummins engines, providing long-lasting reliability and preventing costly repeat repairs caused by inferior factory or aftermarket bolts.