MONTESA 5160.02801 Cota Engine Head 348 P/n 21M

( Brand: Montesa ), ( Manufacturer Part Number: 5160.02801 ), ( Part Type: Engine Head )

Review MONTESA Cota 348 Engine Head P/n 21m fits 1976–1983

The Montesa 5160.02801 Cota 348 engine head is a crucial component of the classic Cota 348 motorbike models produced by Montesa between 1976 and 1983. This engine head is specifically designed for air-cooled, two-stroke, single-cylinder engines, ensuring optimal performance and reliability.

The Montesa 5160.02801 engine head is engineered with a hemispherical combustion chamber, which provides a larger surface area for the fuel-air mixture to ignite, thus increasing combustion efficiency and power output. The head features a multi-valve configuration, which includes both intake and exhaust ports. This design allows for improved gas flow, resulting in better engine breathing and performance.

The engine head is crafted from high-quality aluminum alloy, which provides excellent heat dissipation capabilities due to its inherent conductivity. This material choice aids in maintaining optimal engine temperatures, ensuring consistent performance under various riding conditions. Additionally, the lightweight nature of aluminum contributes to the overall weight reduction of the motorbike, enhancing its agility and maneuverability.

The 5160.02801 engine head also comes with pre-machined surfaces for easy installation. It includes gasket surfaces for the cylinder head gasket, as well as the head bolts' threaded surfaces. This simplifies the installation process, making it more accessible for DIY enthusiasts or small-scale workshops.

When it comes to durability, the Montesa 5160.02801 engine head is built to last. It features robust construction with reinforced areas around the valve seats and the combustion chamber. This reinforcement provides additional strength and resistance to the high temperatures and pressures generated within the engine.

In summary, the Montesa 5160.02801 Cota 348 engine head is an essential upgrade or replacement part for Montesa motorbike enthusiasts who own classic Cota 348 models from the 1976 to 1983 period. This high-performance engine head delivers improved combustion efficiency, increased power output, and enhanced durability, ensuring a more enjoyable and reliable riding experience.

The Montesa 5160.02801 Cota 348 engine head part number 21M is a component frequently used in the restoration or replacement of older Montesa motorbikes from the 1976 to 1983 period. In this analysis, we will discuss the pros and cons of buying this engine head part.

1. Authenticity and Originality: By purchasing an original Montesa engine head, you ensure that your motorbike retains its originality. This is particularly important for collectors and vintage bike enthusiasts.

2. Proper Fitment: This engine head is designed specifically for Montesa Cota 348 motorbikes. This guarantees a perfect fitment, ensuring the engine runs efficiently and effectively.

3. Quality: Montesa is known for its high-quality motorbikes, and the engine heads are no exception. By purchasing an original Montesa engine head, you can be assured of the quality of the part.

4. Enhanced Performance: A new or well-maintained engine head can improve the overall performance of your motorbike. This can lead to better acceleration, increased power, and smoother running.

1. Cost: Original Montesa engine heads can be quite expensive, especially when compared to aftermarket alternatives. This may be a deterrent for some buyers.

2. Limited Availability: Due to the age of these motorbikes, original engine heads may not be readily available. This can make it difficult for some buyers to find the part they need.

3. Potential for OEM-specific Issues: While Montesa engine heads are generally of high quality, there may be specific issues that are unique to this particular part. These issues could require additional time and resources to address.

The Montesa 5160.02801 Cota 348 engine head is an essential component for the restoration or maintenance of Montesa motorbikes from the 1976 to 1983 period. While the cost and limited availability may be drawbacks, the authenticity, fitment, and potential for enhanced performance make it a worthwhile investment for those who value originality and quality.

If you are restoring or maintaining a Montesa Cota 348 motorbike, it is recommended that you use an original Montesa engine head to ensure the best possible performance and fitment. While the cost may be higher than aftermarket alternatives, the benefits of using an authentic Montesa part are significant. If you are having difficulty finding the part, consider contacting Montesa dealers or aftermarket suppliers that specialize in vintage motorbike parts.

Details:

Location: O 201 204/140 swam miss marked 2860.02805 Part fits 1976-1983 Montesa Cota 348 model 51M, double checked in our manuals. Has a small hole drilled in fin for wiring. Montesa Cota 348 Engine Head # 2 p/n 5160.02801 21M 1976-1983 Part fits model 51M, double checked in our manuals. Part is a 8 out of 10, 10 being new and 1 the worst condition.

Cone is smooth. Good fins and threads. Bid is for part as seen in photos.

part #: 516002801 prices

• $75.00-$95.00

specifications cylindermotorcycleiz:

• for years: 1976-1983
• brand: Montesa
• mpn: 5160.02801
• part type: Engine Head

offer cylindermotorcycleiz:

• best offers: True
• sold: 0
• quantity: 1
• availability: In Stock
• started: October 11, 2025
• options: Ship-to-home

seller cylindermotorcycleiz:

• # reviews: 26229
• city: Canby, Oregon
• rating: 100.0%

returns cylindermotorcycleiz:

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

payments cylindermotorcycleiz:

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

general cylindermotorcycleiz:

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

shipping cylindermotorcycleiz:

• carrier: USPS
• class: Expedited, Standard
• service: USPS Priority Mail Medium Flat Rate Box, USPS Ground Advantage, USPS Priority Mail Large Flat Rate Box
• type: Calculated
• cost: $18.70
• transit: 5-10 Days

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