The B1D21 Champion D21 Spark Plug is a reliable 18 mm spark plug designed for dependable ignition performance in a variety of engines and equipment. Built to Champion’s long-standing quality standards, it provides consistent spark delivery and efficient combustion, helping engines start easily and run smoothly. Suitable for multiple equipment applications, the D21 plug is widely used as a replacement spark plug across numerous cross-reference brands and models, making it a dependable option for maintenance and repairs.
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Key Features / Specifications
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