ATHENA P400510444004 Crankshaft Bearing Seal Kit

( Brand: Athena ), ( Manufacturer Part Number: P400510444004 ), ( Part Type: Bearing Seal Crankshaft )

Review ATHENA Crankshaft Bearing Seal Kit Suzuki fits RM250 1989–1993

The **Athena P400510444004 Crankshaft Bearing Seal Kit** is a precision-engineered aftermarket solution designed specifically for Suzuki RM250 motorcycles manufactured between 1989 and 1993, ensuring a reliable and long-lasting seal for the crankshaft bearings. This high-quality kit is meticulously crafted to replace the factory-sealed rubber or elastomeric components that prevent oil leakage and contamination while maintaining optimal engine performance. The seals are engineered from durable, oil-resistant synthetic rubber compounds that resist degradation from heat, friction, and exposure to fuel and lubricants, making them ideal for the demanding conditions of off-road riding. Each seal in the kit is precision-cut to fit snugly within the crankcase, providing a tight, consistent barrier that minimizes oil seepage and extends the lifespan of the crankshaft bearings themselves. The kit includes all necessary components typically featuring the primary and secondary crankshaft seals as well as any required gaskets or mounting hardware, ensuring a complete and hassle-free installation. Whether you're performing routine maintenance or addressing a leak, this kit offers a cost-effective alternative to OEM parts while delivering superior durability and reliability. Built to withstand the rigors of aggressive riding, this Athena seal kit is a trusted choice for Suzuki RM250 owners seeking to maintain peak engine efficiency and prevent costly internal damage.

The **Athena P400510444004 Crankshaft Bearing Seal Kit** is designed for Suzuki RM250 motorcycles from the years 1989 to 1993. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros**

1. **Compatibility**: This kit is specifically engineered for the 1989 1993 Suzuki RM250, ensuring a proper fit without modifications. The crankshaft bearing seals are designed to match the engine s dimensions, reducing the risk of leaks or improper installation.

2. **Quality Materials**: Athena is known for producing high-quality gaskets, seals, and kits that use durable materials like nitrile rubber, which resists oil, heat, and wear. This helps extend the life of the seals and prevents premature failure.

3. **Easy Installation**: The kit typically includes clear instructions and pre-cut seals, making it accessible for both novice and experienced mechanics. The seals are often designed to fit snugly without requiring excessive force during installation, reducing the risk of damage.

4. **Cost-Effective**: Compared to OEM (Original Equipment Manufacturer) parts, aftermarket kits like this one are usually more affordable while maintaining reliability. This makes it a practical choice for budget-conscious riders who still want quality.

5. **Preventative Maintenance**: Replacing worn or leaking crankshaft seals as part of routine maintenance can prevent more costly engine damage down the line, such as oil leaks into the crankcase or excessive friction that could lead to bearing wear.

6. **Availability**: Athena parts are widely available through online retailers, motorcycle shops, and specialty stores, making it easier to source the kit without long waits or shipping delays.

7. **Durability**: The seals in this kit are designed to withstand the operating conditions of a high-performance dirt bike engine, including vibration, heat, and pressure. This reduces the likelihood of frequent replacements.

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### **Cons**

1. **Potential for Counterfeit Products**: As with many aftermarket parts, there is a risk of purchasing counterfeit or low-quality replicas, especially if buying from untrusted sellers. Always verify the seller s reputation and check for authenticity markings or packaging details.

2. **Mixed Reviews on Longevity**: While Athena is generally reliable, some users report that the seals may not last as long as OEM parts or higher-end aftermarket alternatives. This can vary depending on riding conditions, maintenance habits, and engine wear.

3. **Installation Challenges**: Although the kit is designed for ease of use, improper installation such as not cleaning the mating surfaces properly or over-tightening can lead to leaks or seal damage. This requires careful attention to detail during the replacement process.

4. **Limited Customization**: This is a standard kit for the specified RM250 models, meaning it does not offer customization options for engines with modifications (e.g., larger cranks, custom pistons, or altered crankcase dimensions). Riders with heavily modified engines may need to source alternative parts.

5. **Price Sensitivity**: While affordable compared to OEM parts, some riders may find the price slightly higher than generic or no-name seal kits. This could be a consideration for those on a tight budget who are willing to take a slightly higher risk.

6. **Dependence on Proper Maintenance**: The effectiveness of the seals relies on the overall health of the engine. If other components (e.g., crankshaft, bearings, or oil seals) are worn or damaged, the new seals may not perform optimally or may fail sooner.

7. **Limited Warranty or Return Policy**: Athena s warranty and return policies may not be as robust as those offered by OEM manufacturers. Always review the seller s return policy before purchasing to ensure protection in case of defects or installation issues.

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### **Conclusion**

The **Athena P400510444004 Crankshaft Bearing Seal Kit** is a solid choice for riders looking to maintain or upgrade the seals on their 1989 1993 Suzuki RM250. It strikes a balance between affordability, quality, and compatibility, making it suitable for both routine maintenance and minor upgrades. The kit s ease of installation and use of durable materials are significant advantages, particularly for riders who prioritize reliability without breaking the bank.

However, potential buyers should be cautious about purchasing counterfeit products and ensure they follow proper installation procedures to maximize the seals lifespan. While the kit is not without flaws such as variability in longevity and limited customization it remains a practical and widely trusted option for this specific application.

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### **Recommendation**

For most riders of the 1989 1993 Suzuki RM250, the **Athena P400510444004 Crankshaft Bearing Seal Kit** is a **highly recommended purchase**, provided the following steps are taken:

1. **Purchase from a Reputable Seller**: Buy from authorized dealers, well-known online marketplaces (e.g., Amazon, RockAuto, or specialty motorcycle parts stores), or trusted local shops to avoid counterfeit or substandard products.

2. **Follow Installation Instructions Carefully**: Clean the crankcase and crankshaft thoroughly before installation, and ensure the seals are properly seated without twisting or misalignment.

3. **Combine with Routine Maintenance**: Replace the seals as part of a broader maintenance schedule, including checking other seals (e.g., oil seals, timing seals) and ensuring the engine is in good condition.

4. **Consider Higher-End Alternatives if Needed**: If the engine has significant wear or if you prioritize maximum durability, explore premium aftermarket brands (e.g., Fel-Pro, Sealed Power) or OEM replacements, though these will be more expensive.

5. **Monitor Performance Post-Installation**: Keep an eye on the engine for any signs of leaks or unusual noise, which could indicate installation issues or underlying problems.

In summary, this Athena kit is an excellent **cost-effective and reliable solution** for maintaining the crankshaft seals on your RM250, provided you take precautions to ensure quality and proper installation. For most riders, the benefits outweigh the minor drawbacks, making it a strong recommendation.

Details:

Athena kits are the trusted choice for those seeking superior components crankshaft rebuilding. Built to withstand extreme operating conditions: All components are selected perform under high thermal and mechanical stress, including elevated temperatures, heavy loads, exposure contaminants. Built to handle thermal and mechanical stress. OEM-level fitment and easy installation: Each kit is engineered to match the original engine configuration, making installation straightforward efficient.

Bearings from SKF, NTN, or KOYO included. To ensure you're receiving exactly what you want, some orders are sourced from various shipping facilities.: Athena Crankshaft Bearing Seal Kit For Suzuki RM250 1989 1993 4: 4. Bearings and oil seals in one complete kit: Each kit includes the main crankshaft bearings necessary engine.

Fitment: Suzuki RM250 1989 -1993. The bearings are sourced from top-tier manufacturers such as SKF, NTN, and KOYO, ensuring premium quality, precision, resistance to wear.: Bearings and seals for full crankshaft overhaul. Brand: Athena, Part Number: 4.

Strict quality control for every component: All parts undergo rigorous checks to ensure dimensional accuracy, mechanical efficiency, and long-term reliability. Note: Image is for reference only, actual product may vary slightly. Free Ground Shipping.

part #: p400510444004 prices

• $46.17-$71.23

specifications bearingmotorcycleiz:

• for models: Rm250
• for makes: Suzuki
• for years: 1989-1993
• brand: Athena
• mpn: P400510444004
• part type: Bearing Seal Crankshaft

payments bearingmotorcycleiz:

• credit card: Discover
• other
• wallet: Paypal

shipping bearingmotorcycleiz:

• transit: 4-7 Days
• type: Fixed
• carrier: FedEx
• class: Standard
• cost: $0.00
• service: FedEx Ground / FedEx Home Delivery

returns bearingmotorcycleiz:

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

general bearingmotorcycleiz:

• Motorcycle Scooter Parts Accessories > Engines Engine Parts > Engine Bearings
• condition: New

seller bearingmotorcycleiz:

• # reviews: 249798
• rating: 99.8%
• city: Wilmington,

offer bearingmotorcycleiz:

• availability: In Stock
• sold: 0
• started: May 2, 2026
• options: Ship-to-home
• quantity: 1

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