Equivalents for the Mercruiser spark plug 33-8556721
Mercruiser 33-8556721 is a spark plug — reach 18.5–21.5 mm, tightening torque fonte 25–35 N·m · alu 25–30 N·m — ou 180°–240° (½–⅔ tour), heat range hot, thread 14 mm. Find its 50 compatible and interchangeable spark plugs: cross-references for NGK, Bosch, Champion, Denso and every brand.
Technical information Mercruiser 33-8556721 spark plug
- Resistor
- yes
- Torque
- fonte 25–35 N·m · alu 25–30 N·m — ou 180°–240° (½–⅔ tour)
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50 equivalents compatible with the Mercruiser 33-8556721 spark plug
No equivalent for this brand selection.
What can replace a Mercruiser 33-8556721 spark plug?
The Mercruiser 33-8556721 is interchangeable with: NGK PZFR5F-11, Bosch FR8HP, Champion RC12MC4, Bosch FR8LPX, Bosch FR8LPX+, Bosch F7HPP222. These spark plugs share the same mounting (thread, seat) and heat range.
What are the specifications of the Mercruiser 33-8556721?
Thread 14 mm, Reach 18.5–21.5 mm, Heat range Hot, Resistor yes, 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.