Spark plug · Bosch
Equivalents for the Bosch spark plug WR 4 CC
Bosch WR 4 CC, a spark plug. All its 103 replacement references: compatible and interchangeable equivalents — NGK, Bosch, Champion, Denso…
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What can replace a Bosch WR 4 CC spark plug?
The Bosch WR 4 CC is interchangeable with: NGK B9ES, Bosch W 4 CC, Champion N1C, NGK BR9ES, NGK BR8ES-D, NGK BPR 6 FS. 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.