Equivalents for the Standard spark plug W103
Standard W103, a spark plug with reach 15.2–19.0 mm, heat range hot. Here are its 170 cross-references: equivalent, compatible and replacement plugs from NGK, Bosch, Champion, Denso and other makers.
Technical information Standard W103 spark plug
- Resistor
- no
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What can replace a Standard W103 spark plug?
The Standard W103 is interchangeable with: Bosch GA133, Champion CH16, Denso DG128, Bosch GA135, Bosch GA1351, Bosch KEGA121. These spark plugs share the same mounting (thread, seat) and heat range.
What are the specifications of the Standard W103?
Reach 15.2–19.0 mm, Heat range 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.