SKU: 12975011183

1986-2007 Honda CN250 Helix Scooter Cylinder Barrel Piston Gaskets Top End Kit 12100-KS4-690

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Description

1986-2007 Honda CN250 Helix Scooter Cylinder Barrel Piston Gaskets Top End Kit 12100-KS4-690Cylinder Piston Gasket Top End Rebuild Kit 72mm For Honda Helix CN250 CH250 1986 2007 Features: If your cylinder blows through, the compression is too low, or even a piston seizure has occurred, then this kit is exactly the right thing for you. Kit includes cylinder, piston, rings, pin, clips & top end gasket kit (you get exactly what is pictured). The cylinder is made of aluminum for good cooling with an internal cast iron jacket (unlike which has a

Cylinder Piston Gasket Top End Rebuild Kit 72mm For Honda Helix CN250 CH250 1986 - 2007

Features:
If your cylinder blows through, the compression is too low, or even a piston seizure has occurred, then this kit is exactly the right thing for you.
Kit includes cylinder, piston, rings, pin, clips & top end gasket kit (you get exactly what is pictured).
The cylinder is made of aluminum for good cooling with an internal cast iron jacket (unlike which has a nicasil treatment).
The gaskets use performance materials to increase durability and provide greater reliability.
Includes all gaskets pictured to rebuild top end.
Kit is for standard bore size - 72 mm, 17 mm steel piston pin.
This kit is excellent as a low-cost replacement for defects in the original cylinder.

Specifications:
Condition: Aftermarket 100% Brand New
Quantity: 1 Set
Material: Aluminum, Steel
Engine: 4 stroke
Displacement: 244cc
Bore Type: Standard Bore
Bore diameter: 72 mm
Pin diameter: 17 mm
Pin length: 57 mm

Replacement Part Number:
Cylinder: 12100-KS4-690, 12100-KS4-691
Cylinder Base Gasket: 12191-KM1-013, 12191-KS4-690
Cylinder Head Gasket: 12251-KS4-691
Piston: 13101-KS4-030
Pin, Piston: 13111-KM1-000
Piston Ring Set (Std): 13011-KS4-315, 13011-KFR-700
Circlips, piston (2): 94601-17000
Chain Tensioner Gasket: 14555-KS4-690, 14555-KM1-010

(Always compare part numbers to your parts schematics and cross reference appropriately.)
(This is NOT a genuine Part, OEM part numbers are included for product type identification and comparison only.)

Fits Make/Model/Year:
Fit for Honda CN250 Helix Scooter 1986 - 2007
Fit for Honda CH250 Elite Scooter 1985 - 1990

(Compatibility Chart is for Reference ONLY!!!)
(Please Compare with Your faulty unit and the image we provided to Decide Fitment)

Package Includes:
1x 72mm Cylinder
1x Piston
1x Piston Ring Set
1x 17mm Wristpin
1x Circlip(2)
1x Cylinder Base Gasket
1x Cylinder Head Gasket
1x Chain Tensioner Gasket
2x Valve Stem Seals

(Comes exactly as pictured.)

Note:
Please check your existing cylinder prior to purchase to ensure that you are ordering the correct type for your machine.
Key things to check are the distances between the, Fixing holes (measured centre of eye to centre of eye) and the internal diameter of the cylinder/barrel.
The product on offer is an accessory or spare part and thus is not an original product of the vehicle manufacturer.
The name of the vehicle manufacturer is stated only as an indication of the determination of the product being offered as an accessory or spare part, to clarify, for which vehicle the product on offer Fits.

Warranty:
Returns: Customers have the right to apply for a return within 60 days after the receipt of the product
24-Hour Expert Online: Solve your installation and product problems

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 12975011183

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Amazon Customer
Chelsea, US
★★★★★ 5
Good product
Excellent product, fast delivery, good price. I would recommend this company.
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Reviewed in the United States on February 8, 2026
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Stacey O.
Grantham, US
★★★★★ 5
Fits Honda clarity
Easy and correct fit for Honda clarity
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Reviewed in the United States on May 26, 2026
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John Ball
Pawtucket, US
★★★★★ 5
Works Great
I bought this filter for a friend that smokes in the car. Helps reduce the smell a lot. Just make sure it is installed in the right direction.
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Reviewed in the United States on September 20, 2025
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Levi
Fort Morgan, US
★★★★★ 3
Not EXACT fit 2020 Honda Civic
Got this to replace cabin air filter on 2020 Honda Civic Sport, as it said it was a direct fit… It does fit but not perfectly! Holding it next to the filter you can see the size difference, with the original being slightly longer. I noticed a whistling sound from the AC at full blast right after install. I believe this noise is caused by the small gap left in the retainer box with the slightly smaller filter. Luckily it is not incredibly loud, but it’s still there. The quality of filtration seems to be much better than stock filter, but the fitment not exact for vehicles mentioned above.
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Reviewed in the United States on May 17, 2026
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Bon43
Houston, US
★★★★★ 5
Awesome
Easy to install. Fit appropriately. Value for the money for sure.
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Reviewed in the United States on September 26, 2025

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