551503 Resonator Noise Reduction Plug Cover Cap for Duramax 6.6L LLY LBZ LMM 2004.5-2010, Billet Aluminum Tube Plug Cap with 2 O-Rings, Compatible with Chevy and GMC Diesel Trucks
Compatible with Duramax 6.6L LLY LBZ LMM 2004.5–2010, Billet Aluminum Mouthpiece Tube Plug Cap with 2 O-Rings
Wide Compatibility:Resonator Delete Plug compatible with Duramax 6.6L diesel engines including LLY, LBZ, and LMM from 2004.5 to 2010. Designed for systems using part number 551503. Please verify your vehicle setup before purchase.
Space-Saving Design: Resonator Noise Reduction Plug Cover Cap replaces worn resonator components after removal, helping free up space under the hood and creating a cleaner, more streamlined system layout.
Durable Billet Aluminum:Turbo resonator plug cover cap precision-machined from billet aluminum with a satin finish for excellent durability and corrosion resistance. Built to perform reliably in engine bay conditions.
Complete Kit & Easy Install: Includes 1 resonator delete plug with 2 O-rings for reliable sealing. Extra O-rings support maintenance and backup use. Designed for quick and convenient installation.