The Ultimate Guide to Briggs & Stratton 550EX Parts
When it comes to maintaining small engines, having access to the right parts is crucial for performance and longevity. The Briggs & Stratton 550EX series is a popular choice for various outdoor equipment, including lawnmowers and pressure washers. In this guide, we will delve into the various components, features, and maintenance tips for the 550EX series, ensuring you have all the information needed to keep your engine running smoothly.
Comparison of Briggs & Stratton 550EX Parts
| Part Type | Function | Application | OEM Part Number |
|---|---|---|---|
| Carburetor | Controls fuel-air mixture | Lawn mowers, pressure washers | 595553 |
| Air Filter | Filters air entering the engine | All 550EX series engines | 798452 |
| Spark Plug | Ignites the fuel mixture | All 550EX series engines | 490191 |
| Oil Filter | Removes contaminants from engine oil | Applicable for engines with oil lubrication system | 491056S |
| Fuel Pump | Delivers fuel to the engine | Pressure washers, generators | 691003 |
| Starter Motor | Initiates engine start | All 550EX series engines | 793260 |
| Tune-Up Kit | Comprehensive maintenance kit | Lawn mowers, pressure washers | 100005 |
Overview of Briggs & Stratton 550EX Series
The Briggs & Stratton 550EX series comprises lightweight, efficient engines designed for residential use. Known for their durability and ease of maintenance, these engines are ideal for homeowners looking to tackle outdoor tasks.
Engine Specifications
The 550EX series typically features a vertical crankshaft, overhead valve design that enhances fuel efficiency and power output. With a power range of up to 5.5 ft-lbs, the 550EX engines can handle a variety of applications effectively.
Applications of the 550EX Series
These engines are commonly found in push mowers, tillers, and pressure washers. Their compact design and reliable performance make them suitable for small to medium-sized residential jobs.
Common Parts for the Briggs & Stratton 550EX
Carburetor
The carburetor is one of the most critical components of the engine. It mixes air with fuel to ensure optimal combustion. OEM part number 595553 is the standard replacement for the 550EX series. Regular cleaning and maintenance of the carburetor are essential for preventing engine stalling and poor performance.
Air Filter
The air filter prevents dust and debris from entering the engine, which can cause severe damage over time. The OEM part number 798452 should be replaced regularly to ensure proper airflow and engine efficiency.
Spark Plug
A healthy spark plug is vital for ignition. The 490191 spark plug is the recommended part for the 550EX series. Inspecting and replacing the spark plug as part of routine maintenance can lead to smoother engine performance.
Oil Filter
For engines equipped with an oil lubrication system, the oil filter (OEM part number 491056S) is crucial for maintaining oil cleanliness and prolonging engine life. Replacing the oil filter during oil changes is a best practice.
Fuel Pump
The fuel pump is responsible for delivering fuel from the tank to the carburetor. The OEM part number 691003 should be checked for functionality, especially if the engine struggles to start.
Starter Motor
The starter motor (OEM part number 793260) is essential for engine ignition. If your engine does not turn over, it may be time to inspect or replace the starter motor.
Tune-Up Kit
For comprehensive maintenance, consider a tune-up kit (OEM part number 100005) that typically includes a new spark plug, air filter, and oil filter. Regular tune-ups help ensure peak engine performance.
Technical Features of Briggs & Stratton 550EX Series
| Feature | Details |
|---|---|
| Engine Type | 4-Stroke, OHV |
| Displacement | 140cc (5.5 ft-lbs) |
| Starting System | Recoil Start |
| Lubrication System | Splash Lubrication |
| Fuel Type | Unleaded Gasoline |
| Weight | Approximately 30 lbs |
| Dimensions | 19 x 17 x 15 inches |
Maintenance Tips for the 550EX Series
Regular Inspections
Conduct regular inspections of your engine parts, including the air filter, spark plug, and oil levels. Keeping these components clean and in good condition will result in better engine performance.
Seasonal Tune-Ups
At the start of each season, perform a thorough tune-up, including replacing the spark plug, air filter, and oil filter. This proactive approach can prevent larger issues and extend the life of your engine.
Proper Storage
When storing your equipment, ensure the engine is free of fuel, or use a fuel stabilizer to prevent clogging in the carburetor. Store in a dry, cool place to avoid rust and corrosion.
Keep it Clean
Regularly clean the exterior of the engine, removing any debris or grass clippings that may accumulate. This helps prevent overheating and allows for easier inspections.
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Conclusion
The Briggs & Stratton 550EX series offers reliable performance for various outdoor tasks, but maintaining it requires attention to its parts and regular care. By understanding the essential components and following proper maintenance practices, users can ensure their engine operates efficiently for years to come. Whether you need parts from shop.briggsandstratton.com or other suppliers like www.jackssmallengines.com and www.partstree.com, knowing what to look for will save you time and money.
FAQ
What is the power output of the Briggs & Stratton 550EX series?
The 550EX series engines can deliver up to 5.5 ft-lbs of torque, making them suitable for a variety of residential applications.
How often should I change the oil in my 550EX engine?
It is recommended to change the oil every 50 hours of operation or at the beginning of each season for optimal performance.
Where can I find replacement parts for the 550EX series?
You can find replacement parts at several outlets, including shop.briggsandstratton.com and www.briggsstrattonstore.com.
Do I need to replace the air filter regularly?
Yes, it is advisable to inspect and replace the air filter as needed, typically every 25 hours of operation or once a season.
What type of fuel should I use for my 550EX engine?
Use unleaded gasoline with an octane rating of 87 or higher for optimal performance.
How do I know if my spark plug needs replacement?
Signs that your spark plug may need replacement include difficulty starting, reduced engine performance, or a rough idle.
Can I perform maintenance on the 550EX engine myself?
Yes, many maintenance tasks such as changing the oil, air filter, and spark plug can be done by the user with basic tools.
What is included in a typical tune-up kit for the 550EX?
A typical tune-up kit includes a new spark plug, air filter, and oil filter, designed to keep your engine running smoothly.
How do I winterize my Briggs & Stratton 550EX engine?
To winterize, drain fuel or use a fuel stabilizer, change the oil, and store the engine in a dry, cool place.
Where can I find troubleshooting resources for my 550EX engine?
Troubleshooting resources can be found on manufacturer websites like www.briggsandstratton.com and support forums dedicated to small engine repair.