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MK1000971
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 MK1000971
- Includes: NICHE Cylinder Piston Gasket Kit
- Compatible with the following brands: Arctic Cat, KW, Suzuki
- Compatible with the following models KFX400, KLX400R/SR, Quadsport LTZ400,400 DVX
- Replaces for the following OEM MPN's: 11210-29F20-0F0, 11241-29F00, 12111-29F00-0F0, 12140-29F00, 12151-24F10, 09381-20004, 11141-29F01, 09160-10082, 11191-13E00; Kawasaki 11005-S007, 11061-S070
- 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.
Garrettwood
Reviewed in the United States on January 29, 2025
Fit just like oem have about 10 hours with it installed good bump in power and well made and cheap
kevin burnett
Reviewed in the United States on February 9, 2024
The media could not be loaded.
Jacob
Reviewed in the United States on February 24, 2024
Used this on my drz worked great the biggest issue I ran into is the piston wrist pin absolutely would not slide in without beating it in with a hammer so I ended up reusing my old one that slid right in, piston casting does not seem that great but it works
Landon
Reviewed in the United States on April 22, 2024
Wrist pun came bent and didn’t fit right. Base gasket didn’t fit no matter how hard I tried. Cylinder and piston including wrist pin look to be manufactured decent
Customer
Reviewed in the United States on July 31, 2022
Bought and installed this kit in January. I did upgrade the piston to a Namura, just because and it all fit perfectly. Seven months and many miles later, it's still going strong and uses no oil, to speak of. Very happy, especially for the $$$.
Justin Douglas
Reviewed in Canada on June 1, 2022
Put this in a 04 ltz 400. The old top end had low compression so I decided to go with this big bore kit. So far so good have about 30 hours on it since instal. Quad runs great and has lots of power.
Adam H
Reviewed in Canada on May 6, 2022
Although initial appearance looks very good when installed would not seal and leaked between cylinder and block also between head and cylinder head was resurfaced so it's 100% straight so I torqued the head bolts down to 44 ft lb and got the coolant leak to somewhat stop seems to be fixed now although bolts are 10 lb over spec
Paul Cheslik
Reviewed in Canada on September 11, 2021
gasket kit was very hard to put on on the block. no instructions found in or on the website for the install. oil rings were the most difficult to put in place but enough fiddling got em in. other resources did help with the install. all in all good buy for the price and looking forward to finish the break in to go for a proper ride.
Troy Barker
Reviewed in the United States on July 29, 2020
Installed and broken in. Everything measured out. It was missing the circlips, but they sent an entire replacement piston kit to compensate. Bike runs flat out with good compression so far. I'll update if anything changes.
David
Reviewed in the United States on October 8, 2020
I personally don't trust the piston to hold up to my rough riding style but the cylinder looks to be really good. Can't beat $150 for a bore kit that comes with gaskets piston and the cylinder.
ANDREW
Reviewed in the United States on April 14, 2020
So far I am very impressed. This kit made a huge difference in punch in all the rpm range. My kit was very easy to install. I used a page with a title like “Lazy big bore install”. I honestly had nothing to lose because my bike was burning tremendous amounts of oil before the install. I spent lots of time doing research about the other name brand kits. The same kit selling for 600 now sold for 180 back 10 years ago. I rolled the dice and to be honest I am so please. Would absolutely buy again.I did not install the compression release on my SM but after trying to kick it without that I feel like I am going to install it.
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