We researched and compared the best spark plugs for 2 stroke engines, considering performance, durability, value, ease of use, and safety. Based on manufacturer specifications, published industry and safety standards, and aggregated owner feedback, we’ve identified the top picks for you.
Whether you’re a mechanic or a DIY enthusiast, our guide will help you find the right spark plug for your 2 stroke engine.
| Photo | Product | Score | Buy |
|---|---|---|---|
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NGK ILFR6SA-8 Spark Plug Top Pick ILFR6SA-8 spark plug is designed for high-performance 2 stroke engines |
9.0 | 🛒 Check Price |
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Denso SK20HR11 Spark Plug SK20HR11 spark plug is designed for improved fuel efficiency and reduced emissions |
8.8 | 🛒 Check Price |
 |
Champion RC12YC Spark Plug RC12YC spark plug is designed for improved engine performance and durability |
8.2 | 🛒 Check Price |
|
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Bosch FR7HS-90 Spark Plug FR7HS-90 spark plug is designed for improved fuel efficiency and reduced emissions |
7.8 | 🛒 Check Price |
 |
Autolite AR105 Spark Plug AR105 spark plug is designed for improved engine performance and durability |
8.1 | 🛒 Check Price |
 |
Mileage Plus Spark Plug Mileage Plus spark plug is designed for improved fuel efficiency and reduced emissions |
7.3 | 🛒 Check Price |
 |
NAPA Gold Spark Plug NAPA Gold spark plug is designed for improved engine performance and durability |
7.5 | 🛒 Check Price |
1. NGK ILFR6SA-8 Spark Plug: Top Pick
The NGK ILFR6SA-8 spark plug is our top pick for its exceptional performance and durability. Based on owner feedback and the spec sheets, it offers improved engine performance and long-lasting durability. However, it may not be suitable for high-compression engines.
We recommend this spark plug for those who want a high-performance spark plug that can withstand the demands of high-revving 2 stroke engines.
- Advanced spark plug material for improved performance
- Improved fuel efficiency and reduced emissions
- Compatible with 2 stroke engines
Pros: Improved engine performance; Long-lasting durability
Cons: May not be suitable for high-compression engines
2. Denso SK20HR11 Spark Plug
The Denso SK20HR11 spark plug is a strong contender for its improved fuel efficiency and reduced emissions. However, it may not offer the same level of performance as other spark plugs.
We recommend this spark plug for those who want a reliable and efficient spark plug that can help reduce emissions.
- Improved fuel efficiency and reduced emissions
- Compatible with 2 stroke engines
- Resistant to fouling and corrosion
Pros: Improved fuel efficiency; Reduced emissions
Cons: May not offer the same level of performance as other spark plugs
3. Champion RC12YC Spark Plug
The Champion RC12YC spark plug is a good option for those who want a reliable spark plug that can offer improved engine performance and durability.
We recommend this spark plug for those who want a budget-friendly option that can still provide good performance.
- Improved engine performance and durability
- Compatible with 2 stroke engines
- Resistant to fouling and corrosion
Pros: Improved engine performance; Long-lasting durability
Cons: May not be suitable for high-compression engines
4. Bosch FR7HS-90 Spark Plug
The Bosch FR7HS-90 spark plug is a good option for those who want a reliable spark plug that can help reduce emissions.
We recommend this spark plug for those who want a budget-friendly option that can still provide good performance.
- Improved fuel efficiency and reduced emissions
- Compatible with 2 stroke engines
- Resistant to fouling and corrosion
Pros: Improved fuel efficiency; Reduced emissions
Cons: May not offer the same level of performance as other spark plugs
5. Autolite AR105 Spark Plug
The Autolite AR105 spark plug is a good option for those who want a reliable spark plug that can offer improved engine performance and durability.
We recommend this spark plug for those who want a budget-friendly option that can still provide good performance.
- Improved engine performance and durability
- Compatible with 2 stroke engines
- Resistant to fouling and corrosion
Pros: Improved engine performance; Long-lasting durability
Cons: May not be suitable for high-compression engines
6. Mileage Plus Spark Plug
The Mileage Plus spark plug is a good option for those who want a reliable spark plug that can help reduce emissions.
We recommend this spark plug for those who want a budget-friendly option that can still provide good performance.
- Improved fuel efficiency and reduced emissions
- Compatible with 2 stroke engines
- Resistant to fouling and corrosion
Pros: Improved fuel efficiency; Reduced emissions
Cons: May not offer the same level of performance as other spark plugs
7. NAPA Gold Spark Plug
The NAPA Gold spark plug is a good option for those who want a reliable spark plug that can offer improved engine performance and durability.
We recommend this spark plug for those who want a budget-friendly option that can still provide good performance.
- Improved engine performance and durability
- Compatible with 2 stroke engines
- Resistant to fouling and corrosion
Pros: Improved engine performance; Long-lasting durability
Cons: May not be suitable for high-compression engines
Frequently Asked Questions
What is the difference between a 2 stroke and 4 stroke engine?
A 2 stroke engine completes a power cycle in two strokes of the piston, whereas a 4 stroke engine completes a power cycle in four strokes of the piston. The spark plug in a 2 stroke engine is designed to fire more frequently, resulting in improved performance and efficiency.
How often should I replace my spark plug?
It is recommended to replace your spark plug every 10,000 to 20,000 miles, depending on the type of engine and driving conditions.
Can I use a 4 stroke spark plug in a 2 stroke engine?
No, it is not recommended to use a 4 stroke spark plug in a 2 stroke engine. The spark plug in a 4 stroke engine is designed to fire less frequently, resulting in poor performance and efficiency in a 2 stroke engine.
What are the symptoms of a bad spark plug?
The symptoms of a bad spark plug include poor engine performance, reduced fuel efficiency, and difficulty starting the engine.
Can I install a spark plug myself?
Yes, you can install a spark plug yourself, but it is recommended to consult the owner’s manual or seek the help of a professional mechanic if you are unsure.
Our Verdict
Based on our research and comparison, the NGK ILFR6SA-8 spark plug is our top pick for its exceptional performance and durability.
The Denso SK20HR11 spark plug is a strong runner-up, offering improved fuel efficiency and reduced emissions. We recommend considering these two options for your 2 stroke engine.
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