Bosch YR8MEU Spark Plug – Hyundai & Kia
The Bosch YR8MEU spark plug (order number 0242129521) is the service plug for Hyundai and Kia’s small petrol engines. It fits the i10, Accent 1.4, Picanto and Rio 1.2 with a 12 mm thread and 1.0 mm factory gap.
Key Features
- Original-equipment quality construction
- Reliable ignition and smooth idling
- Corrosion-resistant plated shell
- Consistent heat range control
- Sold per plug – order a full engine set
Technical Specifications
| Part number | YR8MEU (0242129521) |
| Electrode | Copper-nickel |
| Thread | M12 × 1.25, 26.5 mm reach |
| Heat range | 8 |
| Gap | 1.0 mm |
Typical Applications
- Hyundai i10 I 1.0 / i10 II 1.2 2007–2019
- Hyundai Accent IV 1.4
- Kia Picanto II 1.0/1.2, Rio III 1.2 2011–2017
Alternative Options
Not sure this is your plug? Send us your VIN or current plug code and we will confirm the right fitment.
Why Buy From Greyhound Auto Retail?
Bosch invented the modern spark plug and remains an original-equipment supplier to vehicle manufacturers worldwide. At Greyhound Auto Retail we combine global manufacturing standards with efficient local distribution. That means competitive pricing, honest advice and stock that moves quickly. In addition, our team can cross-check any fitment before you buy – simply send us your VIN and we will confirm compatibility. We deliver across South Africa, and trade or fleet buyers can contact our team directly for volume pricing.
Fitting Tips
Always replace spark plugs as a complete engine set. Check the electrode gap before installation, thread the plug in by hand to avoid cross-threading, and torque it to the engine manufacturer’s specification. Over-tightening damages the thread and under-tightening causes poor heat transfer. A fresh set restores smooth idling, easy starting and fuel economy.
Order online from Greyhound Auto Retail for fast delivery across South Africa. Global quality, local pricing and reliable supply on every part we sell. Add this part to your cart today, or get in touch with our team if you would like help choosing the right option for your vehicle.






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