Spark plug · Denso

Equivalents for the Denso spark plug 4021

Denso 4021 is an automotive spark plug — tightening torque fonte 25–35 N·m · alu 25–30 N·m — ou 180°–240° (½–⅔ tour), thread 14 mm, heat range very hot. All its 146 replacement references: compatible and interchangeable equivalents — NGK, Bosch, Champion, Denso…

Technical information Denso 4021 spark plug

Torque
fonte 25–35 N·m · alu 25–30 N·m — ou 180°–240° (½–⅔ tour)

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146 equivalents compatible with the Denso 4021 spark plug

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What can replace a Denso 4021 spark plug?

The Denso 4021 is interchangeable with: NGK BP7HS, Bosch W5B, Champion L78YC, Bosch W5B+, Bosch W5BC, Bosch W6BC. These spark plugs share the same mounting (thread, seat) and heat range.

What are the specifications of the Denso 4021?

Thread 14 mm, Heat range Very 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.