NGK 3123 - Alternative spark plugs
There are 20 replacement spark plugs for NGK 3123. The cross references are for general reference only, please check for correct specifications and measurements for your application. When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include Amazon Associates.
- Thread diameter: 12.0 mm
- Thread reach: 19 mm
- Hex size: 18 mm
Specifications for NGK 3123
NGK 3123 on Amazon
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Replacement spark plugs for NGK 3123 on Amazon
Replacement spark plugs for NGK 3123 on Ebay
Applications of NGK 3123
| Brand | Model | Engine size | HP | KW | Year | Engine | # of cyl | Spark plug gap |
|---|---|---|---|---|---|---|---|---|
| HONDA | CB 500 Four CB500 | 500 | 1971 - 1977 | 4 | 0.6 | |||
| HONDA | CB 500 K Four CB500 | 500 | 1971 - 1977 | 4 | 0.6 | |||
| HONDA | CB 550 F Supersport CB550F | 550 | 1975 - 1978 | 4 | 0.7 | |||
| HONDA | CB 550 K Four CB550K | 550 | 1977 - 1978 | 4 | 0.7 | |||
| KAWASAKI | ZR 400 | 400 | 1983 - 1983 | 4 | 0.7 | |||
| KEEWAY | Speed 125 V1 | 125 | 1 | 0.6 | ||||
| KEEWAY | Speed 125 V2 | 125 | 1 | 0.6 | ||||
| KEEWAY | Superlight125 V2 | 125 | 1 | 0.6 | ||||
| KEEWAY | Superlight125 V1 | 125 | 1 | 0.6 | ||||
| YAMAHA | XT 400 | 400 | 1984 - | 1 | 0.7 | |||
| YAMAHA | XT 550 5Y3 | 550 | 1982 - 1983 | 1 | 0.6 | |||
| YAMAHA | XT 600 | 600 | 1984 - 1987 | 1 | 0.6 | |||
| YAMAHA | XT 600 Z | 600 | 1983 - 1985 | 1 | 0.6 |
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The spark plug Cross References are for general reference only. Check for correct application and spec/measurements. Any use of this cross reference is done at the installers risk.