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MK1000926
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 Cylinder Piston Gasket Kit Part Number MK1000926
- Includes: NICHE Cylinder Piston Gasket Kit
- Compatible with the following brands:
- Compatible with the following models: KW KFX80, Quadrunner 250, Quadsport 80
- Replaces for the following OEM MPN's: 11210-40B01, 11111-40B00,12110-40B01-0F0, 12140-40B30,12151-35400, 09263-12023, 09263-12020,09381-12001, 11141-07910, 11241-40B10,11241-40B00 ,01421-0695A
- Compatible Vehicle: ATV
- Placement on Vehicle: Front
NICHE CYLINDER
- ATV engines come with either one or two cylinders
- Displacements typically measuring between 100cc and 800cc
- It's important to note that safely riding an ATV requires a certain amount of body weight and physical strength
- Disaster can strike, for example, when a young rider uses an overpowered or a larger ATV
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
NICHE GASKET
A gasket is a mechanical seal which fills the space between two or more mating surfaces, generally to prevent leakage from or into the joined objects while under compression.
Some Types of Gaskets:
- Head gaskets create a seal between the engine block and cylinder head. This seal establishes a proper compression and prevents fluid leaks into the cylinders
- Base gaskets create a seal between the top-end of your engine and the engine cases. Stop pesky engine oil leaks before they cause permanent damage to your engine.
- The valve cover is sealed to the upper section of the engine cylinder head by a valve cover gasket. As it passes around the camshafts, rockers, and valves, the gasket stops engine oil from seeping out.
Ryan
Reviewed in Canada on February 7, 2025
Rebuilt the top end and got full compression back. Easy running and no stalling. Highly recommend this as a cost saving to buying over priced OEM parts
gray
Reviewed in Canada on February 4, 2025
I bought this kit after buying a waidani kit that has an oval cylinder.. yes that’s right an oval cylinder lol.anyways this kit installed perfectly fine and is still running strong today !
Armando Chavez
Reviewed in the United States on February 8, 2023
I like that I got it real quick thanks a lot
Ultra7350
Reviewed in the United States on October 23, 2023
Less than 4 hours on top end rebuild. The piston ring went bad and damaged the cylinder wall. Should of spent the money on a forged piston top end kit.
Andrew W. Olenik
Reviewed in the United States on April 5, 2022
Nice quality at a reasonable price
5 Shots
Reviewed in the United States on September 28, 2020
After two weekends of attempting to install the piston into the cylinder, three of us were unable to accomplish this task. A friend of mine that also has a LT80 just received his replacement upper engine assembly from a different vendor. We had that one installed within 15 minutes. The thing that pissed me off the most, not just two weekends of my time wasted, not just my grandkids not being able to drive his quad but I also had to pay $6 to ship the thing back for a defective part. So beware when buying from this vendor
Mike brown
Reviewed in the United States on August 5, 2020
Received it with a small defect, contacted the seller and the issue was resolved! Very good response and customer service, parts all look good, will be installing soon.
Larry
Reviewed in the United States on August 21, 2020
So far so good. It’s lasted a day so far. All the parts were included and installed as it should. No defects in the materials. Fired right up and after about ten minutes I checked the compression again and still holding at 110psi however we are running a FMF pipe so we loose some back pressure
Wayne Doll
Reviewed in Canada on August 2, 2020
everything works great. It all fit nicely .
Doug hicks
Reviewed in the United States on March 21, 2020
Wish it would have came with directions. But overall good. Bike runs perfectly.
christopher farinelli
Reviewed in the United States on February 10, 2020
Went together good. Make sure the arrow on the piston points toward exhaust and not the intake for the LT80
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