Equivalents for the Champion spark plug W603
Champion W603, a spark plug featuring heat range very hot, reach 15.2–19.0 mm. 871 equivalents listed: interchangeable and compatible spark plugs across all brands — NGK, Bosch, Champion, Denso…
Technical information Champion W603 spark plug
- Resistor
- no
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871 equivalents compatible with the Champion W603 spark plug
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No equivalent for this brand selection.
What can replace a Champion W603 spark plug?
The Champion W603 is interchangeable with: Bosch F01G004010, Champion N58, Denso G102, Bosch X510, Bosch CH157, Bosch CH159. These spark plugs share the same mounting (thread, seat) and heat range.
What are the specifications of the Champion W603?
Reach 15.2–19.0 mm, Heat range Very hot, Resistor no, Seat Flat (gasket)
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.