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Upgrade your LML Duramax with the Dorman 904-422 NOx Sensor. This high-quality replacement sensor ensures optimal performance by fitting seamlessly into the factory location.
Key Features:
- Direct Replacement: Engineered to replace your original NOx sensor while maintaining factory function.
- Quality Construction: Made from high-grade materials for durability and long-lasting performance.
- Try-On Tested: Rigorously tested to guarantee proper fitment and service life.
- OE Solutions Series: Meets factory standards for reliable and effective repairs.
- Trusted Brand: Preferred by automotive enthusiasts and professionals for its dependable performance.
Ensure your vehicle runs efficiently with the Dorman 904-422 NOx Sensor. Order today for a hassle-free replacement and restored factory performance.

Upgrade your LML Duramax with the Dorman 904-422 NOx Sensor. This high-quality replacement sensor ensures optimal performance by fitting seamlessly into the factory location.
Key Features:
- Direct Replacement: Engineered to replace your original NOx sensor while maintaining factory function.
- Quality Construction: Made from high-grade materials for durability and long-lasting performance.
- Try-On Tested: Rigorously tested to guarantee proper fitment and service life.
- OE Solutions Series: Meets factory standards for reliable and effective repairs.
- Trusted Brand: Preferred by automotive enthusiasts and professionals for its dependable performance.
Ensure your vehicle runs efficiently with the Dorman 904-422 NOx Sensor. Order today for a hassle-free replacement and restored factory performance.