This is an OEM replacement part and is sold individually.

The purpose of this spark plug is to deliver an electric current from an ignition system to the combustion chamber of a gas fueled engine, igniting the air fuel mixture by the spark.

Over time a Spark Plug will become fouled because the air/fuel ratio may be set wrong, worn piston rings, carbon build up, and other factors.
It is best to replace a dirty spark plug, rather than trying to clean it.

It is important to gap your spark plug according to the owners manual of your product.

This is a genuine OEM replacement part, it is sold individually.
The purpose of this filter is to help eliminate dirt, dust and debris from contaminating the carburetor and damaging the engine.
A dirty air filter can cause the engine from operating properly.
This filter can be cleaned a time or two by using an air supply. But it is advised to replace it once it becomes dirty.

This is an authentic manufacturer-sourced replacement part which is specially designed for use with Briggs and Stratton engines commonly installed on lawn and garden equipment. Gaskets are generally utilized to provide a tight seal between connected parts, over time the material may wear out and even begin to crack eventually requiring a replacement. This high-quality kit is sold individually, keep in mind it includes all the necessary components to rebuild a carburetor. Please make sure to refer to the appropriate diagrams of your model for the correct location and application of these components.

NOTE: We do have an article and a video on how to install this kit. Here is the link.
How to Clean a Four-Cycle Engine Carburetor

Genuine Briggs and Stratton replacement part, it includes the Diaphragm and Diaphragm Gasket.
The purpose of the Diaphragm is to draw out fuel into the engine.
The diaphragm is forced inward by ambient air pressure.
The diaphragm is connected to the needle valve and as it moves inward it opens the needle valve to admit more fuel, this replenishes the fuel as it is consumed.
As fuel is replenished the diaphragm moves out due to fuel pressure and a small spring, closing the needle valve.
Most manufactures will have rebuild kits that contain new Diaphragms in them.

Genuine OEM replacement part, this item is sold individually.
The 795629 Air Cleaner Gasket is attached to the part number 795259 Air Cleaner Base on one side and to the Carburetor on the other side.
Its purpose is to create a seal to prevent small debris and particles from entering the carburetor and engine.

This is an OEM replacement part and is sold individually.
Its propose is to deliver an electric current from an ignition system to the combustion chamber of a gas fueled engine.
It will ignite the air fuel mixture by the spark.
Spark Plugs will usually have to gapped to the manufactures specifications found in the owners manual.

Over time a Spark Plug will become fouled because the air/fuel ratio may be set wrong,worn piston rings, carbon build up and other factors.
It is better to replace a fouled spark plug, rather then trying to clean it.