The Ultimate Guide to Spark Plugs for Briggs and Stratton 550EX

When it comes to maintaining small engines, one of the most crucial components to consider is the spark plug. Specifically designed for Briggs and Stratton 550EX engines, these spark plugs play a vital role in ensuring optimal performance and longevity of your equipment. In this guide, we will explore everything you need to know about spark plugs for the Briggs and Stratton 550EX, including types, applications, maintenance tips, and more.

Comparison of Spark Plugs for Briggs and Stratton 550EX

Type	Part Number	Material	Gap (inches)	Application
OEM Spark Plug	692051	Copper	0.030	Lawn Mowers, Snow Blowers
NGK Standard Plug	BPR6ES	Copper	0.030	Lawn Mowers
Iridium Spark Plug	798498	Iridium	0.030	High-performance applications
Platinum Plug	798370	Platinum	0.030	Long-lasting performance

Understanding Spark Plugs

Spark plugs are crucial for igniting the air-fuel mixture in the engine’s combustion chamber. For the Briggs and Stratton 550EX series, using the correct spark plug ensures efficient engine performance, fuel efficiency, and reduced exhaust emissions. Various types of spark plugs are available, including copper, iridium, and platinum, each offering unique benefits tailored to specific engine requirements.

Types of Spark Plugs

OEM Spark Plugs

The OEM (original equipment manufacturer) spark plug, such as the Briggs and Stratton part number 692051, is designed specifically for the 550EX engine. These spark plugs provide reliable performance and are made to meet the engine’s specifications.

NGK Spark Plugs

NGK is a well-known brand in the spark plug industry. Their standard plugs, like the BPR6ES, are engineered for small engines and provide a good balance between performance and cost. They are widely available at retailers such as Home Depot and NGK NTK.

Iridium and Platinum Spark Plugs

Iridium and platinum spark plugs offer improved longevity and performance compared to traditional copper plugs. They are ideal for users who require high-performance equipment. These plugs can often be found at specialized retailers like Briggs and Stratton Store and Tractor Supply Co..

How to Choose the Right Spark Plug

Choosing the right spark plug for your Briggs and Stratton 550EX engine involves considering several factors:

1. Manufacturer Recommendations: Always refer to the engine manual or the manufacturer’s website, such as Briggs and Stratton, for specific part numbers and specifications.

2. Engine Type: Depending on whether your engine is used in a lawn mower, snow blower, or other equipment, the required spark plug may vary.

3. Application Needs: Consider whether you need a standard plug for routine use or a high-performance option for demanding conditions.

4. Gap Settings: Ensure that the spark plug gap is set to the manufacturer’s specifications to avoid performance issues.

Maintenance Tips for Spark Plugs

Maintaining your spark plugs is essential for engine performance. Here are some helpful tips:

• Regular Inspection: Check spark plugs for wear and carbon buildup every season. Replace them as needed.

• Proper Gap Measurement: Use a spark plug gap tool to ensure that the gap is set correctly according to the specifications.

• Cleaning: If the spark plugs are still in good condition but dirty, you can clean them with a wire brush and some solvent. However, avoid damaging the electrodes.

• Replacement Frequency: For standard plugs, consider replacing them every 100 hours of operation, while iridium and platinum plugs may last longer.

Technical Comparison of Spark Plugs for Briggs and Stratton 550EX

Feature	OEM Spark Plug (692051)	NGK Standard Plug (BPR6ES)	Iridium Plug (798498)	Platinum Plug (798370)
Material	Copper	Copper	Iridium	Platinum
Gap	0.030 inches	0.030 inches	0.030 inches	0.030 inches
Lifespan	25-50 hours	30-60 hours	100+ hours	100+ hours
Performance	Standard	Good	Excellent	Very Good
Price	$3-$5	$2-$4	$10-$15	$8-$12

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Conclusion

In conclusion, selecting the right spark plug for your Briggs and Stratton 550EX engine is essential for maintaining optimal performance. By understanding the different types of spark plugs available, their applications, and proper maintenance techniques, you can ensure your equipment runs smoothly. Whether you choose OEM options, NGK spark plugs, or high-performance iridium and platinum variants, always follow the manufacturer’s recommendations for the best results.

FAQ

What is the part number for the OEM spark plug for Briggs and Stratton 550EX?
The OEM spark plug part number for the Briggs and Stratton 550EX is 692051.

How often should I replace the spark plug on my Briggs and Stratton 550EX?
It is recommended to replace standard spark plugs every 100 hours of operation, while iridium and platinum plugs may last longer.

Can I use a different brand of spark plug in my Briggs and Stratton 550EX?
While it is possible to use different brands, it is crucial to ensure that the spark plug specifications match the engine’s requirements to avoid performance issues.

What is the correct gap for the spark plug in a Briggs and Stratton 550EX?
The correct gap for the spark plug in a Briggs and Stratton 550EX is 0.030 inches.

Where can I purchase spark plugs for my Briggs and Stratton 550EX?
Spark plugs can be purchased at various retailers, including Briggs and Stratton Store, Home Depot, and Tractor Supply Co..

Are iridium spark plugs worth the investment?
Yes, iridium spark plugs typically provide better performance and longevity compared to standard copper plugs, making them a worthwhile investment for high-demand applications.

How do I know if my spark plug needs to be replaced?
Signs that your spark plug may need replacement include poor engine performance, difficulty starting, or visible wear and carbon buildup.

Can I clean my spark plugs instead of replacing them?
While cleaning is possible, it is only recommended if the plugs are still in good condition. Always check for wear and replace if necessary.

What materials are spark plugs made from?
Spark plugs can be made from various materials, including copper, iridium, and platinum, each offering different performance characteristics.

Is it safe to change the spark plug myself?
Yes, changing the spark plug yourself is a common maintenance task. Just follow the manufacturer’s guidelines and ensure safety precautions are taken.