OE Quality
60-Day Returns

NGK 7223 Spark Plug
Reliable Ignition with NGK Standard Spark Plug 7223
The NGK Standard Spark Plug 7223 is engineered to deliver consistent ignition performance for a variety of vehicles. Designed with durable materials and precise specifications, this spark plug supports efficient combustion and engine reliability.
- Resistance: 5000 ohms for optimal electrical performance
- Ground Electrode Tip and Configuration: Standard design with a single ground electrode
- Core Materials: Copper center electrode and nickel ground electrode for balanced conductivity and durability
- Electrical Terminal Type: Stud for secure connection
- Pre-Gap Size: 0.028 inches for precise spark gap
- Hex Size: 5/8 inch for easy installation
- Insulator Height: 50.50 mm ensuring proper insulation
- Manufacturer Heat Range: 7, suitable for moderate engine temperatures
- Seat Type: Flat for consistent sealing
- Thread Diameter: 10.00 mm with 0.5 inch reach
About the NGK Standard Spark Plug Line
The NGK Standard Spark Plug line is designed to meet OEM specifications for a wide range of vehicles, providing dependable ignition performance without specialized features. The 7223 model fits within this line, offering a balance of durability and efficiency through its nickel and copper electrode materials and standard design elements.
Technical Details and Performance
The NGK 7223 spark plug features a copper core center electrode that enhances thermal conductivity, helping to dissipate heat effectively. The nickel ground electrode and tip provide resistance to wear and corrosion, maintaining spark integrity over time. With a resistance rating of 5000 ohms, this spark plug reduces electrical noise and interference, supporting stable engine operation. The flat seat type ensures a secure fit in compatible cylinder heads, while the 5/8 inch hex size allows for straightforward installation using common tools.
Compatible Applications and Common Issues Addressed
- Compatible with vehicles requiring a 10 mm thread diameter and 0.5 inch reach spark plug
- Addresses misfires caused by worn or fouled spark plugs
- Helps improve cold starts and throttle response
- Reduces engine hesitation and rough idling
- Supports consistent combustion in engines with moderate heat ranges
Installation Notes and Tips
Before installation, verify the spark plug gap is set to 0.028 inches to match engine requirements. Use a torque wrench to tighten the spark plug to manufacturer specifications to avoid damage to the threads or improper sealing. The 5/8 inch hex size is compatible with standard spark plug sockets. Ensure the engine is cool before replacing spark plugs to prevent thread damage.
Quality Assurance and Warranty
NGK spark plugs are manufactured to meet strict quality standards, ensuring reliable performance and durability. The Standard Spark Plug line, including part number 7223, undergoes rigorous testing to comply with OEM specifications. Warranty coverage details should be confirmed with the vehicle manufacturer or parts distributor.
| Brand | NGK |
| Part Number | 7223 |
| Resistance | 5000 |
| Ground Electrode Tip Design | Standard |
| Ground Configuration | Standard |
| Ground Electrode Core Material | Nickel |
| Electrical Terminal Type | Stud |
| Center Electrode Core Material | Copper |
| Center Electrode Tip Material | Nickel |
| Pre-Gap Size | .028 |
| Ground Electrode Quantity | 1 |
| Hex Size | 5/8 |
| Insulator Height | 50.50 |
| Manufacturer Heat Range | 7 |
| Seat Type | Flat |
| Reach | .5 |
| Thread Diameter | 10.00 |
| Part Number | Cr7hs |
| Stock Number | 7223 |
This part fits 0 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.