Equivalents for the Opel spark plug 121431O
Meet the Opel 121431O spark plug with heat range medium, reach 15.2–19.0 mm. Find its 75 compatible and interchangeable spark plugs: cross-references for NGK, Bosch, Champion, Denso and every brand.
Technical information Opel 121431O spark plug
- Resistor
- no
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What can replace a Opel 121431O spark plug?
The Opel 121431O is interchangeable with: Bosch GLP046, Champion CH158, Denso DG104, Champion CH158002, Denso DG1O4, Denso DG-104. These spark plugs share the same mounting (thread, seat) and heat range.
What are the specifications of the Opel 121431O?
Reach 15.2–19.0 mm, Heat range Medium, 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.