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MK1003415
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 MK1003415
- Includes: NICHE Cylinder Piston Gasket Kit
- Compatible with the following brands: Honda
- Compatible with the following models: Recon 250, Sportrax 250
- Replaces for the following OEM MPN's: 12100-HN6-000, 12191-HM8-000, 12251-HN6-000, 13101-HM8-A40, 13011-HM8-003, 13111-425-000, 94601-15000
- 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.
Customer
Reviewed in the United States on March 5, 2025
Make sure to run a home stone through before installing. Zero crosshatch out of the box. Other than that, pretty good kit
Tim falls
Reviewed in the United States on March 24, 2025
Good parts
David M.
Reviewed in the United States on May 10, 2024
Kit arrived quickly and packaged really well!! Very neat kit! WIth the help of several YouTube videos, Honda Recond Workshop Manual, and MUCH PRAYER, this job wasn't that bad. It was my very first top end rebuild of any kind, but it was a SUCCESS!!! It took me roughly 13 to 15 hours over a few days.. couple to few hours per night. Took my time for sure! No issues with the kit whatsoever. Everything fit as it should with no leaks!!! This completely stopped the horrible smoking issue this Recon had due to my son taking it for a swim :( I did choose to reuse the OEM metal jug gasket as it appeared to be of much bettery quality and still in good shape. The one that came in the kit was as thin as a tin can of soda. Might have worked, but didnt want to take the chance.I wish the kit came with new valve seals, but it did not. I did order them from ebay > Honda OEM > $20 for both. Expensive for what they are, but again, didnt want to chance it.In the end, with all parts and tools that I needed > valve spring compressor, lap lube, engine assembly lube, digital torque adapter from HF etc... I was all in for $275. IF...... I had to do it again, I could do it for $100 to $150 using this kit, and in more than likely half the time lol :) Performed 2 Rotella T6 oil changes on it so far. I put roughly 3 hours of hard riding on it and so far so good!! I would definitly buy this kit again. Time will tell if it holds up like the OEM setup. I hope this helps someone else.God Bless
Brock hunter
Reviewed in the United States on October 8, 2023
For the money this kit can’t be beat! Good quality parts! Got it put together and rode probably 5 hrs so far and everything is running and sounds perfect.
Jessie
Reviewed in the United States on April 29, 2023
All the right things to rebuild engine
Michael post
Reviewed in the United States on April 27, 2023
Received fast and packaged well each part was individually boxed or wrapped and then all put in another box so that was nice nothing banging around and getting damaged by other parts. Super easy to install headed installed in less than an hour. Honestly can't beat it for the cost I use the same setup on another four wheeler over a year ago and it's still running strong with daily use and that's hard use with my kids lol definitely worth the money.
Hank
Reviewed in Canada on June 12, 2022
Poor quality. Needs rebuilding again
Customer
Reviewed in Canada on October 9, 2022
Had a damaged product the took care of me asap. Tkd again.
James Boyle
Reviewed in the United States on June 15, 2021
Installed on a 2007 Honda Recon 250. Works like a charm. Been on 15+ riding hours and still holds up.
Customer
Reviewed in Canada on November 14, 2021
Found that the oil control rings didn’t hold up, I am a power sports mechanic and have assembled many engines and after 4 minutes of running it it burns oil and a noticeable amount to, maybe I got a bad batch, 2 starts because everything else seemed decent
Craig Guinn
Reviewed in the United States on October 17, 2020
Easy and simple install, worked perfectly on 2003 Honda Recon 250. Have about 4 hours total on it now and no issues at all.
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