Equivalents for the Bosch spark plug Sp4
Bosch Sp4 is an automotive spark plug. Find its 22 compatible and interchangeable spark plugs: cross-references for NGK, Bosch, Champion, Denso and every brand.
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22 equivalents compatible with the Bosch Sp4 spark plug
No equivalent for this brand selection.
What can replace a Bosch Sp4 spark plug?
The Bosch Sp4 is interchangeable with: NGK BPR5E, Bosch WR 8 D+, Brisk A-line 6, NGK V-Line 6, Bosch WR 9 D+, Bosch WR 8 DC+. 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.