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The NGK CR9EB spark plug is an essential maintenance component designed for vehicle owners who prioritize consistent engine performance and reliable ignition. It features a nickel middle electrode and a built-in 5kOhm resistor, making it a dependable choice for maintaining smooth operation and preventing engine misfires. While it is a high-quality standard replacement part, users must carefully verify their vehicle’s specific service manual requirements before installation to ensure perfect compatibility with their engine's firing system.
| Model Part Number | 6955 |
|---|---|
| Brand | NGK |
While NGK plugs are often near the correct gap, you should always check and adjust the gap according to your specific vehicle's service manual before installation.
The resistor helps reduce radio frequency interference (RFI) which can interfere with the vehicle's onboard electronics and ignition system.
Standard nickel plugs like the CR9EB should generally be replaced every 10,000 to 20,000 miles, depending on your vehicle's maintenance schedule.
No, you must match the heat range and reach of the plug to your specific engine; consult an NGK part finder tool using your vehicle's make, model, and engine type.
This listing is for one individual spark plug.
Verify the spark plug gap matches the manufacturer's specification for your specific engine model.
Check the condition of your ignition coils and plug wires, as the spark plug relies on these components to deliver a strong charge.
This often indicates a rich air-fuel mixture; check your air filter or fuel system sensors.
Before installing the NGK CR9EB, ensure the engine is completely cool to avoid damage to the cylinder head threads. Use a 16 mm spark plug socket to remove the old unit, being careful not to let debris fall into the combustion chamber. When installing the new plug, thread it by hand first to avoid cross-threading, then use a torque wrench to tighten it to the manufacturer-recommended specification. Always consult your vehicle owner's manual for the exact service interval, as spark plugs should be replaced regularly to prevent them from becoming seized in the cylinder head over time.
