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NICHE Standard Bore Top End Repair Kit for Polaris Big Boss Scrambler Sportsman Trail Blazer Xplorer 400
Description
🛠️ Upgrade your ride, dominate the trail—don’t get left behind!
- SEAMLESS OEM FIT - Engineered to match Polaris OEM part numbers for flawless integration.
- DOT CERTIFIED SAFETY - Built to meet rigorous safety standards for peace of mind on every trail.
- LIGHTWEIGHT COMPACT - At just 1.7 lbs and 7-inch cube size, easy to handle and store.
- WIDE MODEL COMPATIBILITY - Supports multiple Polaris models from 1997 to 2003—one kit, many rides.
- ALL IN ONE REPAIR SOLUTION - Includes piston and gasket for a comprehensive top-end rebuild.
The NICHE Standard Bore Top End Repair Kit is a precision-engineered, DOT-certified solution designed for Polaris Big Boss, Scrambler, Sportsman, Trail Blazer, and Xplorer 400 models from 1997 to 2003. This compact 1.7-pound kit includes essential components like piston and gasket, ensuring a seamless OEM fit and reliable top-end engine performance.
Specifications
| Manufacturer | Mishon Inc |
| Brand | NICHE |
| Model | Big Boss 400L, Scrambler 400, Sportsman 400L |
| Item Weight | 1.7 pounds |
| Product Dimensions | 7 x 7 x 7 inches |
| Country of Origin | China |
| Item model number | MK1003422 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | MK1003422 |
| OEM Part Number | 3084148, 3084729, 3084731, 3086757 |
| Safety Rating | DOT Certified |
Reviews
R**R
Polaris sportsman 400
Exact replacement perfect fit
F**S
Piston
Work out great fast delivery
J**H
Rings are junk
All worked well but the rings were too brittle and snapped easily upon installation
L**A
Make sure you have the right size piston
Parts work great direct fit will definitely buy them again.
A**W
Good product for price
Works great motor started right up with this
G**L
Quality part
It was an exact fit replacement
R**H
Fast shipping
Quality stuff for a good price
J**E
1997 Polaris sportsman 400l
Everything fit perfectly
Common Questions
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