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MK1000934
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 MK1000934
- Includes: NICHE Cylinder Piston Gasket Kit
- Compatible with the following brands: Yamaha
- Compatible with the following models: Raptor 660R, Grizzly 660, Rhino 660
- Replaces for the following OEM MPN's: 3YF-11181-00-00, 5KM-11310-00-00, 3YF-11351-00-00, 2C6-11603-00-00, 93450-24028-00, 3YF-11631-00-X0,3YF-11633-01-00, 90201-102G9-00,90105-10649-00, 90105-09648-00
- 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.
Aaron
Reviewed in the United States on May 10, 2024
If I could turn back the hands of time I would. The cylinder will move on you. Its not decked flat and it's not worth it for the price
Marc
Reviewed in Canada on March 31, 2024
Purchased product to replace my cylinder on my Yamaha 660. After unboxing and inspection noticed pitting inside cylinder unknown cause appears to be defect from casting but I cannot tell. I purchased separately a clymer manual that tells me to install dowels on the piston housing now I may have to source these additional parts else where. May be why so many are having head gasket issues without the dowels the gasket will not be held in place. Quality of these parts is average in my opinion.
john m williams
Reviewed in the United States on December 22, 2024
exact fitting
eric
Reviewed in Canada on November 29, 2024
Everything needed to fix Yamaha Raptor 660.
Tony melvin
Reviewed in Canada on January 28, 2024
Piston, rings, and spark plug all great stuff. Head gasket garbage. Order this kit and a better gasket and you will be just fine. Update turns out the jug case is not true level with the sleeve I have put a request in with the seller to see if they will rectify this. I will keep you posted
Salomon Garcia
Reviewed in the United States on August 31, 2023
Head gasket blew, coolant got to piston and hydrolock engine
Dustin Blythe
Reviewed in the United States on July 11, 2022
I was a little skeptical of ordering this kit after watching some videos online and reading some other reviews but I could not resist the price and bought it anyway. I checked the cylinder height and it was correct and didn’t require any machining, I used all the parts and the kit including the paper gasket on the bottom of the cylinder and the O-ring was the correct size. I was very impressed with the piston rings as the second compression ring is actually a oil scraper to prevent burning oil. The stock piston comes with two standard compression rings which have failed on my bike and was smoking like a freight train. I install this kit with no problems at all and has been working perfectly would definitely recommend to a friend and buying again
alfredoguido
Reviewed in the United States on December 8, 2022
I bought this cylinder, it was fine but I had a problem with antifreeze leaking through the middle of the cylinder and the head, how can I repair it?
Mike
Reviewed in the United States on July 20, 2019
Cylinder looks to be seated and machined well. O-ring for the bottom of jug was to big. Installed on a 05 rhino 660
pamela.peters85
Reviewed in the United States on April 29, 2019
Got exactly what I had ordered. Everything came exactly as shown and as quickly as i had hoped. Very pleased with my order.
Customer
Reviewed in the United States on November 18, 2018
Perfectly fits my 2005 Yamaha raptor. It was great to be able to convert a 660r into a 686 (aka 700). The power difference is easily felt and this kit made it possible and easy.
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