KALAMA 12-18901 Cylinder Head

( Brand: Kalama ), ( Manufacturer Part Number: 12-18901 ), ( Type: Cylinder Head ), ( Unit Type: Unit ), ( Compatible Model: Yz125, Yz 125 ), ( Vintage Part: No ), ( Compatible Year: 2001, 2002, 2003, 2004 ), ( Country Of Origin: Taiwan )

Review KALAMA Cylinder Head Yamaha fits YZ125 YZ 125 2001–2004

Introducing the Kalama 12-18901 Cylinder Head, specifically designed for Yamaha YZ125 and YZ125 models manufactured between 2001 and 2004. This high-performance cylinder head upgrade is an excellent choice for riders seeking enhanced power and engine efficiency.

The Kalama 12-18901 Cylinder Head is meticulously crafted using premium materials, ensuring superior durability and longevity. The OEM-quality construction guarantees a perfect fit and seamless integration with your Yamaha engine.

This cylinder head boasts a unique design that optimizes airflow and heat dissipation, leading to improved combustion efficiency and increased power output. The redesigned combustion chamber and larger intake and exhaust ports enable the engine to breathe more effectively, resulting in better throttle response and increased top-end power.

Moreover, the Kalama 12-18901 Cylinder Head features reinforced valve seats and improved valve guides, ensuring optimal valve sealing and reducing the likelihood of valve bounce. This results in better engine performance and smoother power delivery throughout the RPM range.

The cylinder head also includes a redesigned cooling system to ensure optimal engine temperature regulation. The larger cooling fins and improved coolant flow rates help maintain consistent engine temperatures, reducing the risk of overheating and improving overall engine performance.

By upgrading to the Kalama 12-18901 Cylinder Head, you'll not only experience improved power and torque, but also enhanced engine response, better throttle control, and increased durability. This cylinder head is an excellent investment for any Yamaha YZ125 or YZ125 owner seeking to take their riding experience to the next level.

In summary, the Kalama 12-18901 Cylinder Head is a high-performance upgrade for Yamaha YZ125 and YZ125 models from 2001 to 2004. It offers enhanced power output, improved combustion efficiency, and optimized engine temperature regulation, resulting in smoother power delivery and increased durability. With its premium construction and OEM-quality fit, this cylinder head is an excellent investment for any serious off-road rider.

The Kalama 12-18901 cylinder head is a popular aftermarket option for Yamaha YZ125 and YZ125 models produced between 2001 and 2004. This part is known for its durability and performance improvements. In this response, we will discuss the pros and cons of buying this cylinder head to help you make an informed decision.

1. Enhanced Power: The Kalama cylinder head is designed to deliver more power compared to the OEM cylinder head. This is achieved through porting and other engine modifications that increase the flow of air and fuel into the engine.

2. Improved Cooling: The cylinder head comes with larger cooling fins that improve the cooling efficiency of the engine. This helps prevent overheating and ensures consistent performance, especially during long rides or high-speed racing.

3. Durability: The Kalama cylinder head is made from high-quality materials, including forged pistons and heavy-duty valves, that can withstand the rigors of high-performance riding.

4. Affordability: Compared to other high-performance cylinder heads, the Kalama 12-18901 is relatively affordable, making it an attractive option for budget-conscious riders.

1. Complex Installation: Installing the Kalama cylinder head requires a high level of mechanical expertise. This is not a DIY project and should be done by a professional mechanic or an experienced enthusiast.

2. Potential Compatibility Issues: Although the Kalama cylinder head is designed to fit Yamaha YZ125 and YZ125 models produced between 2001 and 2004, there have been reports of compatibility issues. It is essential to ensure that the cylinder head is compatible with your specific motorcycle model and year before purchasing.

3. Increased Noise: Some riders have reported increased engine noise after installing the Kalama cylinder head. This can be a result of the higher compression ratio and increased power output.

The Kalama 12-18901 cylinder head is an excellent option for riders looking to improve the performance and durability of their Yamaha YZ125 or YZ125 models. Its benefits, such as increased power, improved cooling, and durability, make it a popular choice among high-performance enthusiasts. However, its complex installation process, potential compatibility issues, and increased noise may deter some riders. Ultimately, the decision to buy the Kalama cylinder head depends on your personal preferences, riding style, and mechanical expertise. If you have the necessary resources and are willing to invest in a high-performance upgrade, the Kalama cylinder head is a worthy investment.

If you are considering purchasing the Kalama 12-18901 cylinder head, it is essential to ensure that it is compatible with your specific motorcycle model and year. Additionally, it is recommended that you have the cylinder head installed by a professional mechanic or an experienced enthusiast to avoid any potential issues. Finally, be prepared for increased engine noise and a more complex installation process. If these factors do not deter you, the Kalama cylinder head is an excellent choice for enhancing the performance and durability of your Yamaha YZ125 or YZ125.

Details:

Kalama 12-18901 Cylinder Head For Yamaha YZ125 YZ 125 2001 2004.

part #: 1218901 prices

• $264.95-$304.95

specifications cylindermotorcycleiz:

• for models: Yz125, Yz, 125
• for makes: Yamaha
• for years: 2001-2004
• brand: Kalama
• mpn: 12-18901
• type: Cylinder Head
• unit type: Unit
• compatible model: Yz125, Yz 125
• vintage part: No
• compatible year: 2001, 2002, 2003, 2004
• country of origin: Taiwan

payments cylindermotorcycleiz:

• wallet: Paypal
• credit card: Discover
• other

returns cylindermotorcycleiz:

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

seller cylindermotorcycleiz:

• city: North Salt Lake, Utah
• rating: 99.7%
• # reviews: 66583

shipping cylindermotorcycleiz:

• transit: 4-8 Days
• type: Fixed
• class: Standard
• cost: $0.00
• service: USPS Ground Advantage
• carrier: USPS

offer cylindermotorcycleiz:

• started: April 14, 2026
• options: Ship-to-home
• sold: 0
• availability: In Stock
• quantity: 1

general cylindermotorcycleiz:

• Motorcycle Scooter Parts Accessories > Engines Engine Parts > Cylinder Heads
• condition: New other see details