Spark plug · General Motors

Equivalents for the General Motors spark plug 25166821

General Motors 25166821, a spark plug featuring heat range very hot, thread 14 mm, reach 17.5–20.0 mm, tightening torque fonte 10–20 N·m · alu 10–20 N·m — ou 180°–240° (½–⅔ tour). Browse its 174 equivalents: compatible, interchangeable and replacement spark plugs across NGK, Bosch, Champion, Denso and many more.

Technical information General Motors 25166821 spark plug

Resistor
yes
Torque
fonte 10–20 N·m · alu 10–20 N·m — ou 180°–240° (½–⅔ tour)

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174 equivalents compatible with the General Motors 25166821 spark plug

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What can replace a General Motors 25166821 spark plug?

The General Motors 25166821 is interchangeable with: NGK TR5IX, Bosch HR9DCY, Champion RS12PYP, Bosch HR9DPX, Bosch HR9DPY, Bosch HR9DPX4. These spark plugs share the same mounting (thread, seat) and heat range.

What are the specifications of the General Motors 25166821?

Thread 14 mm, Reach 17.5–20.0 mm, Heat range Very hot, Resistor yes, Seat Tapered, Torque fonte 10–20 N·m · alu 10–20 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.