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NGK 4629 Spark Plug
| Brand | NGK 4629 |
|---|---|
| Resistance | 1 |
| 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 | 50.00 |
| Manufacturer Heat Range | 7 |
| Seat Type | Flat |
| Reach | .5 |
| Thread Diameter | 10.00 |
| Part Number | C7hsa |
| Stock Number | 4629 |
| Fits | — |
OE supplier heritage. Built by NGK, a long-standing spark plug manufacturer with original equipment standards.
Copper core design. Promotes reliable ignition performance with nickel-tipped electrodes.
Standard spark plug. A direct-fit replacement for common ignition service needs.
Cross-references AMS Automotive 4006, AMS Automotive 4193 and AMS Automotive 4629 for the same application. See all 19.
NGK C7HSA Standard Spark Plug
The NGK C7HSA standard spark plug is built for dependable ignition performance in a wide range of small-engine and powersports applications. As part of NGK’s Standard Spark Plug line, this plug uses a copper center electrode with nickel tip materials and a standard ground electrode design for consistent spark delivery.
With a 10.00 mm thread diameter, 0.5 in. reach, flat seat, 5/8 in. hex, and a pre-gap size of .028, the NGK 4629 is a practical replacement choice when you need a direct-spec spark plug for routine service. It is also identified by part number C7HSA.
Key Features
- NGK Standard Spark Plug line for OE-style service replacement
- Copper center electrode core material with nickel center electrode tip
- Nickel ground electrode core material with standard ground configuration
- 1 ohm resistance for ignition system compatibility
- .028 pre-gap size for straightforward installation setup
- 10.00 mm thread diameter, 0.5 in. reach, and flat seat design
- 5/8 in. hex size and stud terminal type
- Manufacturer heat range 7
Product Details
NGK has decades of OE supply and manufacturing experience across automotive, motorcycle, marine, and small-engine applications. The C7HSA / 4629 spark plug reflects that background with a standard construction focused on reliable ignition, stable electrode performance, and original-equipment-style dimensions. For buyers searching for NGK C7HSA spark plug, NGK 4629, or a standard replacement spark plug for small engines and powersports service, this part provides the core specifications needed for a proper match.
This part cross-references AMS Automotive 4006 and Anchor 2795 for the same application.
What It Helps Address
- Hard starting caused by worn or fouled spark plugs
- Misfire from weak or inconsistent spark output
- Rough idle related to degraded ignition performance
- Loss of throttle response from aging plug electrodes
- Service replacement needs for NGK C7HSA applications
Installation Notes and Tips
Verify the thread diameter, reach, seat type, and heat range against the original plug before installation. Set the gap to .028 if adjustment is required, and confirm the terminal style matches the ignition lead or cap. For fitment-based searches, this part is commonly referenced for NGK C7HSA applications and NGK 4629 replacement needs; always match the original specification before use.
Quality Assurance
NGK is a long-established OE supplier with broad coverage across domestic and import vehicle applications, supported by North American and global manufacturing and distribution operations. The Standard Spark Plug line is built to maintain original-equipment standards for durability and operational performance.
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