CS400 chainsaw air filter tune-up kit
Product description
Key specifications
Owners looking for replacement parts for a compatible Echo chainsaw may find this CS400 air filter tune-up kit useful for routine servicing. It combines an air filter with several fuel-system parts and a spark plug, rather than supplying only a replacement filter.
The listing gives replacement numbers 13030039730, 90155, 90155Y and 90109. It names the Echo CS370, CS420, CS5000, CS-400, CS-370, CS370F, CS400F, CS420ES and CS3500, among other listed variants. Match your saw’s model and existing part number against those details before ordering, the broad compatibility list does not confirm fit for every Echo chainsaw.
The air filter is described as having a polyurethane resin frame and multi-fibre, high-density media. The listing claims it captures 99% of airborne particles, but provides no test conditions or independent verification. It may suit you if you want several service parts together. It may not be the best option if you need a confirmed original-equipment part or compatibility beyond the models listed.
Who it’s for
This bundle is aimed at chainsaw owners who already know their model and want to replace more than the air filter during a service. For example, when refreshing a compatible saw, you could use the air filter alongside the supplied fuel filter, fuel lines, primer bulb and spark plug. That makes it a different approach from buying just the single part that has worn out, though it also means checking that the included items are relevant to your repair.
Given its setup, the main buying decision is fit, not the number of pieces. The model names overlap and are written in several formats, so compare the exact designation on your saw rather than relying on “CS400” alone.
In the box
The kit includes one air filter, one primer bulb, one fuel filter, one spark plug and two fuel lines. The listing does not give dimensions, materials for the other components or installation instructions, so it is worth confirming that these parts match what your service requires before starting work.
Buying questions
Which chainsaws are listed as compatible? The listing names Echo CS370, CS420, CS5000, CS-400, CS-370, CS370F, CS400F, CS420ES and CS3500, as well as CS-4200ES. Check your exact model before purchase.
Does the kit include a spark plug and fuel parts? Yes. Along with the air filter, it lists a spark plug, primer bulb, fuel filter and two fuel lines.
Is the 99% filtration claim independently verified? No verification details are provided in the product information. Treat it as the listing’s claim, not as a stated test result you can compare directly with another filter.
Final verdict
This kit makes most sense when your saw matches the listed models and you want an air filter plus several related service parts in one bundle. If you only need one component, or require confirmed compatibility for a model that is not named, a part-specific replacement is the more straightforward route. Check the model and replacement number first, the listing does not provide enough detail to establish fit beyond its stated compatibility range.