Cummins DEF Header for Freightliner and Western Star 04-31353-005

This aftermarket DEF header is designed for Cummins engines in Freightliner and Western Star applications, offering OEM-equivalent performance and a 2-year, 40,000-mile warranty.

• The description claims the product offers OEM-equivalent performance.
• The description claims the product is backed by a 2-year, 40,000-mile warranty.