NGK
Description
Get crisp throttle response and dependable ignition from the NGK ER9EHIX Iridium IX spark plug for compatible late-model Vespa Sprint 50 engines and the additional applications below. Its fine iridium tip produces a consistently stable spark, with high ignitability and anti-fouling performance that help keep your ride ready for the next outing.
Key Features
- Responsive performance: Iridium IX technology supports strong acceleration and improved throttle response
- Consistent ignition: Fine iridium tip provides a stable spark and high ignitability
- Long-life design: Iridium's high melting point supports durability in high-temperature engines
- Cleaner running: Superior anti-fouling performance helps maintain reliable ignition and fuel efficiency
- Protective plating: Trivalent metal plating provides corrosion and anti-seizing protection
Technical Specifications
- Brand: NGK
- Part number: 145-79
- Plug model: ER9EHIX
- NGK stock number: 96652 / NGK96652
- Series: Iridium IX
- Thread diameter: 8mm
- Reach: 19mm / approximately 3/4 inch
- Hex size: 13mm
- Electrode diameter: 0.8mm
- Gap: 0.7–0.8mm / approximately 0.028–0.031 inch
- NGK heat range: 9
- Quantity: One spark plug
Compatibility
| Make | Model | Years / Version |
|---|---|---|
| Honda | Grom 125 | 2014–present |
| Honda | Monkey 125 | 2018–present |
| Vespa | Sprint 50 | Late-model applications |
| Vespa | LX 50 | 4V |
| Vespa | S 50 | 4V |
| Piaggio | Fly 50 | — |
| Piaggio | Typhoon 50 | — |
Confirm the required spark plug for your exact engine and model year before ordering. Use the vehicle manufacturer's specified gap and installation torque; this plug is not a universal replacement for every engine sharing a model name. Other makes and models may use this plug when the specified plug type, thread diameter, reach, heat range and terminal connection match.
Product Diagrams
Features
Specifications
Brand: NGK; Part number: 145-79; Plug model: ER9EHIX; NGK stock number: 96652 / NGK96652; Series: Iridium IX; Thread diameter: 8mm; Reach: 19mm; Hex size: 13mm; Electrode diameter: 0.8mm; Gap: 0.7–0.8mm / approximately 0.028–0.031 inch; NGK heat range: 9; Quantity: One spark plug
Model Fitments
Honda Grom 125: 2014–present; Honda Monkey 125: 2018–present; Vespa Sprint 50: Late-model applications; Vespa LX 50 4V; Vespa S 50 4V; Piaggio Fly 50; Piaggio Typhoon 50; Verify exact engine/model year and required plug specifications before installation
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Same day shipping for orders placed before 2PM (CST) M-F
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30-day return period on eligible items
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Flat-rate shipping for orders shipped to the 48 Contiguous United States.
