HONDA 12120-KSR-A00 Top Cylinder Jug Barrel Motor End Engine

( Manufacturer Part Number: 12120-KSR-A00 ), ( Engine Type: 2-stroke ), ( Type: Cylinder Head ), ( Machine Type: Off-road Motorcycle ), ( Material: Aluminum ), ( Vintage Part: No ), ( Country Of Origin: Japan )

Review HONDA Oem Cylinder Jug Barrel Motor Top End Engine fits CR125R CR125 2004

The Honda 12120-KSR-A00 is a top-end engine cylinder jug barrel assembly specifically designed for the 2004-2005 CR125R and CR125 motorcycles. This high-performance component is engineered to deliver exceptional power and reliability for off-road racing and recreational use.

The cylinder jug barrel assembly is the heart of the engine, housing the piston, cylinder, and crankshaft. This particular part is meticulously manufactured using Honda's advanced engineering techniques and premium materials. The cylinder features a bore size of 67.0mm x 72.0mm, ensuring optimal combustion efficiency and power output. The jug barrel is constructed from a robust, heat-resistant material, enabling it to withstand the intense temperatures and pressures generated during engine operation.

The top end of the engine is sealed by a set of high-performance piston rings, which prevent the loss of compression and ensure an efficient transfer of power from the piston to the crankshaft. The piston itself is designed with a lightweight, yet strong construction, featuring a forged aluminum alloy structure to reduce weight and enhance durability. The piston ring grooves are precision machined to ensure a perfect seal, minimizing blow-by and maximizing power.

The intake and exhaust ports on the cylinder jug barrel are meticulously designed to optimize engine breathing, enabling the engine to efficiently draw in a fresh charge of air and exhaust spent gases. This, in turn, contributes to increased power output and improved fuel efficiency.

The Honda 12120-KSR-A00 cylinder jug barrel assembly is a direct replacement for the original part, ensuring a perfect fit and seamless integration with your CR125R or CR125 motorcycle. It is recommended that this component is installed by a professional mechanic to ensure proper alignment and torque settings.

In summary, the Honda 12120-KSR-A00 cylinder jug barrel assembly is a high-performance top end engine component designed for the 2004-2005 CR125R and CR125 motorcycles. It is meticulously manufactured using advanced engineering techniques and premium materials, ensuring optimal combustion efficiency, power output, and reliability. This component is a direct replacement for the original part and is recommended for installation by a professional mechanic.

Buying a Honda CR125R CR125 cylinder jug barrel motor top end engine, specifically model number 12120-KSR-A00 from the year 2004, has its own set of advantages and disadvantages for off-road motorcycle enthusiasts.

1. Reliability: Honda engines are known for their durability and reliability. This top end engine is no exception and is a popular choice among racers and enthusiasts looking for a high-performance motor.

2. Power: The CR125R engine delivers impressive power and torque, making it an ideal choice for motocross racing and other off-road applications.

3. Availability: Replacement parts for Honda engines are widely available, ensuring that repairs can be made easily and cost-effectively.

4. Compatibility: This engine is compatible with various frames and chassis, allowing riders to upgrade their bikes or build custom motorcycles.

1. Cost: The price of a used top end engine can be relatively high, especially when compared to the cost of a new engine or a complete rebuild.

2. Complexity: Engine rebuilds and installations can be complex processes that require specialized tools and knowledge. Hiring a professional mechanic to do the work can add to the overall cost.

3. Compatibility issues: While the engine is compatible with various frames and chassis, ensuring a perfect fit can be a challenge. Riders may need to make modifications to their bikes or purchase additional parts to ensure proper installation and operation.

The decision to buy a used Honda CR125R CR125 cylinder jug barrel motor top end engine ultimately depends on the individual's budget, technical skills, and specific needs. For those who prioritize reliability, power, and compatibility, this engine may be a worthwhile investment. However, for those who are on a tight budget or lack the necessary skills to install and maintain the engine, it may be more cost-effective to consider alternative options such as a new engine or a complete rebuild.

If you are considering purchasing a used Honda CR125R CR125 cylinder jug barrel motor top end engine, it is recommended that you thoroughly research the market, compare prices, and assess your personal skills and resources before making a decision. Additionally, it may be wise to consult with a professional mechanic or Honda dealership to ensure that the engine is in good condition and compatible with your motorcycle.

Details:

Condition: OEM cylinder removed from a 2004 Honda CR125R that was in good running condition. The gasket surfaces are smooth and clean. The cylinder looks good overall, but there are some light wear marks visible on the inner wall. We primarily ship large/heavy items FedEx Ground.

Part Number: CYLINDER 12110-KSR-A00. The exterior is clean and intact with no cracks, chips, or signs of repair. Honda CR125R 2004. Please review all photos carefully so you know exactly what are purchasing.

part #: 12120ksra00 prices

• $299.99-$488.23

specifications cylindermotorcycleiz:

• for models: Cr125r, Cr125
• for makes: Honda
• for years: 2004
• mpn: 12120-ksr-a00
• engine type: 2-stroke
• type: Cylinder Head
• machine type: Off-road Motorcycle
• material: Aluminum
• vintage part: No
• country of origin: Japan

payments cylindermotorcycleiz:

• wallet: Apple-pay
• credit card: Diners-club
• check
• money order
• other
• cash

offer cylindermotorcycleiz:

• sold: 0
• quantity: 1
• options: Ship-to-home
• started: December 9, 2025
• availability: In Stock

returns cylindermotorcycleiz:

• paid by: Seller
• time: 30 Days
• policy: Returns Accepted

shipping cylindermotorcycleiz:

• cost: $19.49
• service: USPS Priority Mail
• class: Expedited
• type: Fixed
• transit: 3-7 Days
• carrier: USPS

seller cylindermotorcycleiz:

• rating: 100.0%
• # reviews: 880
• city: Sandy, Oregon

general cylindermotorcycleiz:

• condition: Used
• Motorcycle Scooter Parts Accessories > Engines Engine Parts > Cylinder Heads

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