
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 6 - Jul 11
For Your Every Summer RSVP, with Code: SUMMER15
Description
Koso North America Cylinder Kit - MB640000 Honda Grom 125 / Monkey 125 / Monkey 2022Features Compression ratio allows the use of premium pump gas and keep the reliabilty of a stock motor Kit includes aluminum black powder coated cylinder, 54 mm forged piston, rings, pin, pin clips and gasket kit Specs Color Finish Black Compression Ratio 11. 38: 1 Engine Type 4 Stroke Material Aluminum Product Name Cylinder Kit Style Big Bore Units Kit Color Finish Powder Coated Riding Style Street Displacement 149 cc Part Notes Kit Includes:
Features
- Compression ratio allows the use of premium pump gas and keep the reliabilty of a stock motor
- Kit includes aluminum black powder coated cylinder, 54 mm forged piston, rings, pin, pin clips and gasket kit
Specs
| Color/Finish | Black |
| Compression Ratio | 11.38:1 |
| Engine Type | 4-Stroke |
| Material | Aluminum |
| Product Name | Cylinder Kit |
| Style | Big Bore |
| Units | Kit |
| Color/Finish | Powder-Coated |
| Riding Style | Street |
| Displacement | 149 cc |
Part Notes
- Kit Includes:
- • Cylinder
- • Piston
- • Rings
- • Pin
- • Pin Clips
- • Gasket Kit
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 1491 reviews
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Product Reviews
★★★★★ 5
Reliable and well priced
Works very well in my Cub Cadet XT1
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026
★★★★★ 5
Installed them works good.
Value for the money.
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Reviewed in the United States on March 10, 2026
★★★★★ 5
Good Plug if you need this model
These are the OEM for Kohler 7000 series I did service on. They needed to be gapped but that’s every spark plug.
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Reviewed in the United States on May 19, 2026
★★★★★ 4
Plugs
They are sparkling plugs. They spark.
Very slow on delivery.
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Reviewed in the United States on March 30, 2026
★★★★★ 5
Champion is my favorite
They fit my cub cadet
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Reviewed in the United States on March 18, 2026