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519-KPS2218T
About NICHE
NICHE provides Powersports replacement parts. Some of the NICHE product categories include cylinders, brake pads, axles, off-road mirrors, and drive chains. NICHE parts are here for when you need them the most.
NICHE Piston Part Number 519-KPS2218T
- Includes: NICHE Piston Kit
- Compatible with the following brands: Polaris
- Compatible with the following models: Big Boss 400L, Scrambler 400, Sportsman 400
- Replaces for the following OEM MPN's: 3085886
- Compatible Vehicle: ATV
- Bore Size: 83mm
- Material: Aluminum Alloy
- Piston Type: Dome
NICHE PISTON
An ATV piston is a component of engines, pumps, and gas compressors. It is located in a cylinder and is made gas-tight by piston rings. In an engine, its purpose is to transfer force from expanding gas in the cylinder to the crankshaft through a piston rod and or connecting rod
Piston Anatomy
A piston is a cylindrical engine component that slides back and forth in the cylinder bore by forces produced during the combustion process. The piston acts as a movable end of the combustion chamber. The stationary end of the combustion chamber is the cylinder head.
Piston Components
ATV Piston components include the piston head, piston pin bore, piston pin, skirt, ring grooves, ring lands, and piston rings. The piston head is the top surface of the piston which is subjected to tremendous forces and heat during normal engine operation
Sb
Reviewed in the United States on June 23, 2024
It big for my avt my1988 polaris trail boss 250
Kurt Mann
Reviewed in the United States on November 30, 2024
In regards to the el cheapo pistons and nich cylinder, which I've purchased twice and bought several pistons...., my wheelers still not running well. It runs but it lacks. I put it on the back burner and decided to get something that runs I don't have to keep pumping money into. But if they wanted to sende.somepre cheap parts I'd try it once again. Cylinders and pistons aren't what I'd call quality merchandise.
Nikolas Tomlinson
Reviewed in the United States on January 26, 2024
Loved it made my machine run like new and everything came right no modifications needed.
Customer
Reviewed in the United States on July 7, 2023
Overall a nice part but if we had not received another wrist pen bearing with the rod it would have been a time eather on the rebuild. Don't think we will be ordering anything else from Niche.
Jessica M
Reviewed in the United States on July 18, 2023
Worked great in my scrambler 400. Easy to install as well.
Earl Tizzard
Reviewed in Canada on June 18, 2023
The piston was too loose in the cylinder
Danny vanest
Reviewed in the United States on January 26, 2023
Fit perfect!
wayne carriere
Reviewed in Canada on January 21, 2023
blmiller
Reviewed in the United States on January 4, 2021
Worked great and fit great it my 99 Polaris Xplorer 450.
sasha
Reviewed in the United States on April 22, 2020
I don't know how but when i opened my package the piston rings were broken and the piston bearing was just thrown in the center on the piston bouncing around. Poor poor care. Feeling very disappointed.
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