YAMAHA 4SR-1240A-10-00 Right Left Radiator 4SR-12461-10-00

( Manufacturer Part Number: 4SR-1240A-10-00 ), ( Type: Radiators Right Left Radiator ), ( Country Of Origin: Japan )

Review YAMAHA Radiators Right Left Radiator fits YZ250 2000–2001

The **Yamaha 4SR-1240A-10-00 (00-01 YZ250 Radiators, Right & Left Part #4SR-12461-10-00)** is a high-performance, precision-engineered cooling system designed exclusively for Yamaha s iconic 2000 and 2001 model year YZ250 motocross bikes. These radiators represent the pinnacle of liquid cooling technology for this classic dirt bike, ensuring optimal thermal management to maintain peak engine performance under the most demanding racing conditions. Crafted from high-grade aluminum alloy, these radiators feature a robust, finned design optimized for maximum heat dissipation, allowing the engine to operate at consistent temperatures even during prolonged, high-intensity rides or competitive events. The right and left radiators are engineered to work in tandem, channeling engine coolant through a network of finely tuned passages that enhance convection and heat transfer efficiency. Each radiator is meticulously machined to Yamaha s original specifications, guaranteeing a perfect fit with the bike s existing cooling system, including the water pump, hoses, and mounting brackets. The seamless integration of these components ensures there are no leaks, air pockets, or performance compromises, allowing riders to push their YZ250 to its limits without worrying about overheating. Whether you're restoring a vintage YZ250 to its former glory or upgrading an existing bike for improved reliability, these radiators deliver the durability and cooling performance expected from Yamaha s legendary engineering. Built to withstand the rigors of off-road use, they are resistant to corrosion and wear, making them a long-lasting investment for serious riders who demand nothing less than perfection.

### **Pros and Cons of buying a Yamaha 4SR-1240A-10-00 (00-01 YZ250) Radiators (Left & Right, Part #4SR-12461-10-00)**

1. **OEM Quality and Fit** These are genuine Yamaha radiators designed specifically for the 2000-2001 YZ250 models. They ensure a perfect fit, reducing the risk of leaks or improper installation compared to aftermarket alternatives.

2. **Reliability** Yamaha s radiators are built to last, especially if the bike is well-maintained. They are made from durable materials that can withstand the thermal stress of high-performance riding.

3. **Ease of Installation** Since they are direct replacements, swapping them out is straightforward for most mechanics or experienced riders. No modifications are typically required.

4. **Warranty Coverage** If purchased from an authorized Yamaha dealer or a reputable seller, these parts may still carry some level of warranty or return policy, providing peace of mind.

5. **Performance Consistency** Unlike some aftermarket radiators that may offer slight cooling improvements, these OEM parts maintain the intended cooling performance of the original design, ensuring the engine stays within optimal temperature ranges.

6. **Availability of Parts** These radiators are widely available through Yamaha dealers, online marketplaces, and salvage yards, making them easy to source if needed for repairs.

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1. **Cost** Genuine Yamaha parts are more expensive than aftermarket alternatives. For a pair of radiators, the price can be significantly higher, which may be a deterrent for budget-conscious buyers.

2. **Potential for Wear or Damage** If the radiators are being purchased used (e.g., from a salvage yard), there is a risk of hidden damage (corrosion, cracks, or clogged fins) that could lead to premature failure.

3. **Limited Cooling Improvements** Unlike aftermarket radiators designed for high-performance or aggressive riding, these OEM parts do not offer enhanced cooling capacity. If you push the bike hard or modify it significantly, you may still experience overheating issues.

4. **Age of Design** The 2000-2001 YZ250 radiators are over two decades old. While they function well, they may not incorporate the latest cooling technologies found in newer Yamaha models.

5. **Potential for Counterfeit Parts** When buying online, there is a risk of receiving counterfeit or refurbished parts that do not meet OEM standards. Always verify the seller s reputation and purchase from trusted sources.

6. **Weight** Radiators, by nature, are heavy components. While not excessive, they contribute to the overall weight of the bike, which may be a consideration for riders prioritizing lightweight performance.

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The Yamaha 4SR-1240A-10-00 (00-01 YZ250) radiators are a reliable and high-quality choice for riders who prioritize OEM fit, durability, and ease of installation. They are ideal for standard riding conditions and routine maintenance, as well as for those who prefer sticking with genuine parts to avoid compatibility issues. However, their higher cost and lack of performance upgrades compared to aftermarket options may not make them the best choice for aggressive riders or those on a tight budget.

If you are replacing damaged or worn-out radiators and want to ensure a seamless fit and long-term reliability, these are an excellent investment. For riders looking to enhance cooling performance or reduce weight, exploring aftermarket alternatives (e.g., from brands like YSS, K&N, or others) may be worth considering.

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- **Buy from an authorized Yamaha dealer or a reputable online seller** (e.g., RockAuto, Cycle World, or a trusted used parts marketplace) to ensure authenticity and warranty coverage.

- **Inspect the radiators thoroughly** if purchasing used look for signs of corrosion, dents, or clogged fins that could compromise performance.

- **Consider aftermarket options** if you plan to modify the bike or ride aggressively, as they may offer better cooling efficiency or weight savings.

- **Budget accordingly** if cost is a concern, weigh the pros and cons of aftermarket parts against the peace of mind of OEM quality.

Ultimately, these radiators are a safe and dependable choice for standard maintenance, but always assess your specific needs before purchasing.

Details:

00-01 Yamaha YZ250 Radiators Right Left Radiator 4SR-12461-10-00 4SR-1240A-10-00: No cracks. Minor fin damage. No tube damage or evidence of leaking.

part #: 4sr1240a1000 prices

• $14.99-$170.51

specifications cyclevintagee:

• for models: Yz250
• for makes: Yamaha
• for years: 2000-2001
• mpn: 4sr-1240a-10-00
• type: Radiators Right Left Radiator
• country of origin: Japan

seller cyclevintagee:

• rating: 99.8%
• city: Sun City, California
• # reviews: 10302

offer cyclevintagee:

• availability: In Stock
• sold: 0
• options: Ship-to-home
• started: May 29, 2026
• quantity: 1

returns cyclevintagee:

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

payments cyclevintagee:

• wallet: Paypal
• other
• credit card: Diners-club

general cyclevintagee:

• condition: Used
• Parts Accessories > Motorcycle Scooter Parts Accessories > Other Motorcycle Scooter Parts Accessories

shipping cyclevintagee:

• service: USPS Ground Advantage, USPS Priority Mail
• transit: 4-7 Days
• carrier: USPS
• type: Calculated
• class: Standard, Expedited
• cost: $15.63

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