Spark plug · Motorcraft

Equivalents for the Motorcraft spark plug 439

The Motorcraft 439 spark plug featuring tightening torque fonte 25–35 N·m · alu 25–30 N·m — ou 180°–240° (½–⅔ tour), resistor type (RFI-suppressed), heat range medium, thread 14 mm. 56 equivalents listed: interchangeable and compatible spark plugs across all brands — NGK, Bosch, Champion, Denso…

Technical information Motorcraft 439 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 Motorcraft 439 spark plug?

The Motorcraft 439 is interchangeable with: Bosch HR7DP+, Champion RS12PYP, Denso IT16, Champion RS14PYP, Champion RS10PYPB5, Denso IT20. These spark plugs share the same mounting (thread, seat) and heat range.

What are the specifications of the Motorcraft 439?

Thread 14 mm, Heat range Medium, 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.