Equivalents for the Bosch spark plug GPM-903
Bosch GPM-903 is an automotive spark plug featuring thread 14 mm, tightening torque fonte 25–35 N·m · alu 25–30 N·m — ou 180°–240° (½–⅔ tour), heat range hot. Find its 220 compatible and interchangeable spark plugs: cross-references for NGK, Bosch, Champion, Denso and every brand.
Technical information Bosch GPM-903 spark plug
- Resistor
- no
- Torque
- fonte 25–35 N·m · alu 25–30 N·m — ou 180°–240° (½–⅔ tour)
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220 equivalents compatible with the Bosch GPM-903 spark plug

























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No equivalent for this brand selection.
What can replace a Bosch GPM-903 spark plug?
The Bosch GPM-903 is interchangeable with: Bosch GPN-342, Champion CH256, Denso DG136, Bosch O25O312OO7, Champion CH411, Champion CH6O2. These spark plugs share the same mounting (thread, seat) and heat range.
What are the specifications of the Bosch GPM-903?
Thread 14 mm, Heat range Hot, Resistor no, Seat Flat (gasket), Torque fonte 25–35 N·m · alu 25–30 N·m — ou 180°–240° (½–⅔ tour)
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.