S&S Diesel Motorsport Injector Nozzles - 04.5-05 Duramax LLY (Set of 8)

S&S Diesel Motorsport LLY Injector Nozzles

S&S Diesel Motorsport is a leader in diesel fuel systems, engine performance optimization, and electronic controls. With decades of combined experience—including engineering roles within major diesel engine and fuel system OEMs—S&S products are engineered to deliver precise fueling, performance, and reliability.

The S&S injector nozzles for 2004.5–2005 GM Duramax LLY engines are designed to provide accurate fuel delivery and optimized spray patterns, making them an excellent choice for performance-oriented builds when properly installed.

Important Installation & Purchasing Notes

⚠️ Injector nozzles should ONLY be installed on low-mileage injectors.
⚠️ Professional installation by a skilled diesel technician is REQUIRED.
⚠️ Improper installation can lead to injector failure and engine damage.

Manufacturer Policy

⚠️ S&S Diesel Motorsport injector nozzles are non-returnable per the manufacturer.
Please verify fitment and application before ordering.