I want to clean a diesel engine head. What type of parts washer is best?

Aug 1, 2023 | Matt Reed


Cleaning a diesel engine head requires a parts washer that can effectively remove heavy contaminants, carbon deposits, and oil residues without causing damage to the engine head's surface. The best type of parts washer for this task would be an industrial-grade aqueous parts washer with additional features to enhance the cleaning process. Here's why an aqueous parts washer is recommended:

  1. Cleaning Power: Aqueous parts washers use water-based cleaning solutions that are effective in removing a wide range of contaminants, including oil, grease, carbon deposits, and dirt commonly found on diesel engine heads.
  2. Environmentally Friendly: Aqueous parts washers are more environmentally friendly than solvent-based washers, as they produce fewer harmful emissions and reduce the use of hazardous chemicals.
  3. Safe for Aluminum and Cast Iron: Diesel engine heads are often made of aluminum or cast iron. Aqueous parts washers are generally safe for cleaning these materials without causing damage or corrosion.
  4. Heat Option: Look for an aqueous parts washer that offers a heating option. Heating the cleaning solution can enhance its effectiveness in breaking down stubborn contaminants and carbon deposits.
  5. High Pressure and Agitation: Consider an aqueous parts washer that provides high-pressure spray and mechanical agitation features. These can help dislodge and remove tough deposits from hard-to-reach areas on the engine head.
  6. Adjustable Nozzles: Having adjustable nozzles in the parts washer allows you to direct the cleaning solution precisely where it's needed, ensuring thorough cleaning of all surfaces.
  7. Large Capacity: Diesel engine heads can be sizeable, so choose a parts washer with a large enough capacity to accommodate the head comfortably.
  8. Drying Option: Some aqueous parts washers come with drying features, allowing you to remove excess water from the engine head after cleaning, preventing water spots or corrosion.