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Denso Iridium Saver Spark Plugs

denso spark plugsDenso's heavy-duty Iridium Spark Plugs bring quality, reliability and tremendous value to a wide range of industrial and CO-GEN applications. For owners of stationary spark-ignited engines, the Denso product line delivers improved performance that can stretch your preventive maintenance intervals and decrease downtime.

For example, your maintenance tech checks your spark plugs every 90 days, driven by the need to replace the spark plugs before a failure occurs. A good percentage of field units don't make it to 90 days before misfiring occurs, because most engines are running low-quality plugs. When a unit goes down in the field and you're not pumping gas or water, what's it costing you? A downed unit in the field can be very expensive.

Operators using Denso Iridium Saver spark plugs have been able to extend their preventive maintenance intervals to 120 days, and even re-use the same plugs for up to a year. The savings generated by using Denso makes the cost of the spark plug itself insignificant. Denso factories are QS9000 and ISO9000 certified worldwide, just one of the many reasons why zero defects for parts produced in the millions is a reality for Denso. Every spark plug that leaves the factory has been designed with precision, manufactured to OE standards and subjected to rigorous safety and performance tests. This kind of quality and reliability brings peace of mind.

Spark Plug Categories

The Heavy-Duty Industrial Iridium Saver product line is comprised of three categories: the Iridium Saver, the Iridium Saver Performer, and the Iridium Saver Durability Double Iridium. The illustration below highlights some of the categorical differences:

denso spark plug categories

Each of the spark plug image links below will take you to the MurCal web store page that corresponds to that category. The pages in our web store provide detailed information on each spark plug type, including engine application information. Price and availability details are included as well.

denso iridium saver spark plugs
denso iridium saver performer spark plugs
denso saver durability double iridium spark plugs



The Iridium Saver Series Application brochure is a valuable source of information when you are ready to choose the best spark plugs for your engine. Over 40 engine manufacturers are listed, with cross-reference, torque guidelines and specifications for each plug type.