Equivalents for the Bosch spark plug O25O2O21O3
The Bosch O25O2O21O3 spark plug with reach 15.2–19.0 mm, heat range medium. All its 151 replacement references: compatible and interchangeable equivalents — NGK, Bosch, Champion, Denso…
Technical information Bosch O25O2O21O3 spark plug
- Resistor
- no
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What can replace a Bosch O25O2O21O3 spark plug?
The Bosch O25O2O21O3 is interchangeable with: Bosch CH203, Champion W425, Denso DG145, Bosch GLP040, Bosch GLP228, Champion CH203. These spark plugs share the same mounting (thread, seat) and heat range.
What are the specifications of the Bosch O25O2O21O3?
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.