Spark plug · Bosch
Equivalents for the Bosch spark plug HR 78 NX
Bosch HR 78 NX is an automotive spark plug. All its 414 replacement references: compatible and interchangeable equivalents — NGK, Bosch, Champion, Denso…
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What can replace a Bosch HR 78 NX spark plug?
The Bosch HR 78 NX is interchangeable with: NGK TR5B13, Bosch HR7MU, Champion E0N4, NGK TR5A-10, NGK TR5B-13, NGK LTR6B10T. These spark plugs share the same mounting (thread, seat) and heat range.
Cross-references and specifications are provided for guidance only. The wrench size can vary by brand, and some data is inferred from the plug code or an equivalent reference. Always check the vehicle manufacturer's recommendation before buying and fitting.