The Dorman 555-082 Steel Cup Expansion Plug is designed to restore factory function to your 5.9 Cummins engine. Constructed from high-quality steel, this direct-fit expansion plug ensures reliable performance and durability. Rigorous testing guarantees optimal fit and long service life, making it a dependable choice for maintaining engine efficiency.

Features:

• Direct-fit replacement for seamless installation
• Engineered to restore factory operation and performance
• Made from high-quality steel for lasting durability
• Trusted by technicians and automotive enthusiasts for over 100 years