Spark plug · Denso

Equivalents for the Denso spark plug 4603

Denso 4603 is an automotive spark plug — reach 19.0 mm, resistor type (RFI-suppressed), thread 14 mm, tightening torque fonte 25–35 N·m · alu 25–30 N·m — ou 180°–240° (½–⅔ tour), heat range hot. All its 26 replacement references: compatible and interchangeable equivalents — NGK, Bosch, Champion, Denso…

Technical information Denso 4603 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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What can replace a Denso 4603 spark plug?

The Denso 4603 is interchangeable with: NGK BK5ESZ, Bosch FR 8 DS, Denso T03, NGK BKR5EIX-11, Bosch FQR 8 DE, Denso T06. These spark plugs share the same mounting (thread, seat) and heat range.

What are the specifications of the Denso 4603?

Thread 14 mm, Reach 19.0 mm, Heat range Hot, Gap 1.1 mm, 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.