LLY Duramax Grid Heater 2001-2004

Overview

This is an intake grid-heater component for the Chevrolet, GMC LLY Duramax diesel (2001-2004). Built to OEM specification and engineered as a direct-fit replacement for a professional-grade LLY Duramax repair or service. Every order ships fast and is backed by our support team.

What It Does & How It Helps

The intake grid heater is Cummins' cold-start aid — an electric heating element in the intake that warms incoming air so the engine fires cleanly and idles smoothly when it is cold. A failed element means hard cold starts and cold-start white smoke, and on the 6.7L the grid-heater bolt is a known failure and safety concern. A correct grid-heater element and hardware restore dependable cold starting.

What's Included

• a grid-heater element or grid-heater hardware as specified

Fitment

Fits Chevrolet, GMC trucks equipped with the LLY Duramax diesel engine, 2001-2004. Please confirm your engine and year before ordering to ensure correct fitment.

Common Symptoms & When to Use

Consider this LLY Duramax part when you experience:

• hard cold starting on a Cummins
• a grid-heater electrical fault
• the 6.7 Cummins grid-heater bolt safety concern
• cold-start white smoke

Specifications

• Engine: LLY Duramax
• Year Range: 2001-2004

Quality & Service

Fast shipping on in-stock orders. Free shipping on orders over $70. Backed by Core Diesel Parts — your source for LLY Duramax diesel parts.