ATHENA P400210444249 Crankshaft Bearing Seal Kit

( Brand: Athena ), ( Manufacturer Part Number: P400210444249 ), ( Part Type: Bearing Seal Crankshaft )

Review ATHENA Crankshaft Bearing Seal Kit Honda fits CR250R 1984–1991

The **Athena P400210444249 Crankshaft Bearing Seal Kit** is a meticulously engineered replacement solution designed specifically for the **1984 1991 Honda CR250R**, ensuring a reliable and long-lasting seal for the crankshaft bearings. This high-performance kit is crafted from premium materials, including durable **nitrile rubber** and reinforced **steel wire reinforcement**, to withstand the demanding stresses of off-road riding while maintaining optimal engine integrity. The seals are precision-molded to fit snugly within the engine s crankcase, preventing oil leaks and minimizing contamination from dirt, debris, or moisture critical factors for preserving the longevity of your bike s internal components. Ideal for both restoration projects and routine maintenance, this kit eliminates the frustration of persistent oil leaks that can compromise engine performance and lead to costly repairs. Whether you're tackling a routine service or addressing an existing seal failure, Athena s kit delivers the durability and precision needed to keep your CR250R running smoothly, ensuring peak efficiency and reliability for years of off-road adventures.

The **Athena P400210444249 crankshaft bearing seal kit** is designed for the **Honda CR250R (1984 1991)** and is intended to replace worn or leaking crankshaft seals. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros**

1. **Compatibility and Fitment**

The kit is specifically engineered for the **1984 1991 Honda CR250R**, ensuring proper alignment and sealing. This reduces the risk of installation errors that could lead to leaks or damage. Athena is a reputable brand known for producing high-quality OEM replacement parts, which helps maintain the motorcycle s performance and reliability.

2. **Durability and Material Quality**

Athena s seal kits typically use **high-quality elastomers and reinforced materials**, which are designed to withstand the heat, pressure, and vibration inherent in motorcycle engines. This can extend the life of the seals compared to cheaper, aftermarket alternatives that may degrade quickly.

3. **Easy Installation**

The kit includes all necessary seals (typically the **crankshaft oil seal, camshaft seals, and sometimes the primary chain seal**), which simplifies the replacement process. The seals are pre-formed to fit the engine s specifications, reducing the need for custom cutting or adjustments. This makes the job more accessible for both experienced mechanics and DIYers.

4. **Prevents Oil Leaks**

One of the most common issues in older CR250Rs is **crankshaft or camshaft seal failure**, leading to oil leaks that can damage the engine if left unchecked. Replacing these seals proactively can prevent costly internal engine damage, such as worn bearings or contaminated oil.

5. **Cost-Effective Long-Term Solution**

While the upfront cost may seem higher than some generic seals, the **longevity and reliability** of Athena s seals often justify the investment. Cheaper seals may fail sooner, requiring more frequent replacements and additional labor costs.

6. **OEM-Level Performance**

Athena s parts are designed to meet or exceed **OEM specifications**, ensuring that the motorcycle s performance is not compromised. This is particularly important for riders who prioritize **reliability and longevity** over purely cosmetic or performance-focused upgrades.

7. **Warranty and Support**

Athena offers **warranty coverage** on their products, which provides peace of mind in case of premature failure. Additionally, their customer service and availability of technical support can be helpful if installation issues arise.

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### **Cons**

1. **Price Point**

The **Athena P400210444249 kit is more expensive** than some generic or no-name seal replacements. For riders on a tight budget, this may be a deterrent, especially if they are only replacing one or two seals rather than the full kit. However, the cost is often justified by the quality and longevity.

2. **Installation Complexity**

While the kit is designed for ease of use, **replacing crankshaft and camshaft seals still requires careful disassembly of the engine**. This process can be time-consuming and may involve removing the **cylinder, camshaft, and other components**, which could be challenging for inexperienced DIYers. Improper installation (e.g., not seating the seal properly or over-torquing) can lead to leaks or seal failure.

3. **Limited Availability of Tools**

Some steps in the installation, such as **removing the crankshaft or compressing the seal properly**, may require **specialized tools** (e.g., seal installers, torque wrenches, or pullers). If a rider lacks these tools, they may need to purchase them, adding to the overall cost.

4. **Potential for Overkill**

If the seals are only **minorly worn** (e.g., just a small leak), some riders might opt for a **single-seal replacement** instead of the full kit. In such cases, buying the entire kit may be unnecessary, though it is often recommended to replace all seals at once to ensure even wear and prevent future issues.

5. **Mixed Reviews on Longevity in Aggressive Conditions**

While Athena seals are generally durable, **extreme conditions** (e.g., high RPM riding, extreme temperatures, or prolonged exposure to fuel or chemicals) can still cause premature wear. Riders who push their bikes aggressively may need to replace them sooner than expected.

6. **No Significant Performance Gain**

Unlike performance upgrades (e.g., exhaust systems, carburetors, or suspension), **seal replacements do not improve power or handling**. The primary benefit is **reliability and preventing damage**, which may not appeal to riders focused solely on performance.

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### **Conclusion**

The **Athena P400210444249 crankshaft bearing seal kit** is a **high-quality, reliable choice** for replacing seals on the **1984 1991 Honda CR250R**. Its strengths lie in **durability, ease of installation (relative to other OEM replacements), and compatibility**, making it a solid investment for riders who want to avoid oil leaks and internal engine damage. However, the **higher cost and complexity of installation** may be drawbacks for budget-conscious or inexperienced riders.

For most owners, **the benefits outweigh the drawbacks**, especially if the seals are already failing or showing signs of wear. The kit ensures a **long-term solution** that aligns with the motorcycle s original specifications, reducing the risk of future issues.

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### **Recommendation**

- You are experiencing **oil leaks from the crankshaft or camshaft seals** in your **1984 1991 Honda CR250R**.

- You want **OEM-quality parts** that will last longer than generic alternatives.

- You are willing to invest in **preventative maintenance** to avoid more expensive engine repairs down the line.

- You have **basic mechanical skills** or are prepared to seek professional help for installation.

- You are on a **very tight budget** and only need to replace one seal (though replacing all seals at once is recommended).

- You are **not comfortable with engine disassembly** and do not have access to the necessary tools.

- You find a **reputable aftermarket brand** (e.g., **Fel-Pro, Sealed Power, or Gasket**) offering a comparable kit at a lower price, with strong reviews for durability.

For the **1984 1991 Honda CR250R**, the **Athena P400210444249 seal kit is the best choice** for reliability and longevity. While it requires careful installation, the **preventative benefits far outweigh the costs** of potential engine damage from leaking seals. If you prioritize **long-term engine health**, this is a worthwhile upgrade.

Details:

Fitment: Honda CR250R 1984 -1991. Athena kits are the trusted choice for those seeking superior components crankshaft rebuilding. Note: Image is for reference only, actual product may vary slightly. The bearings are sourced from top-tier manufacturers such as SKF, NTN, and KOYO, ensuring premium quality, precision, resistance to wear.

To ensure you're receiving exactly what you want, some orders are sourced from various shipping facilities. Free Ground Shipping. Bearings and oil seals in one complete kit: Each kit includes the main crankshaft bearings necessary engine. 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.: Bearings and seals for full crankshaft overhaul. Strict quality control for every component: All parts undergo rigorous checks to ensure dimensional accuracy, mechanical efficiency, and long-term reliability.: Athena Crankshaft Bearing Seal Kit For Honda CR250R 1984 1991 9: 9.

Brand: Athena, Part Number: 9. Built to handle thermal and mechanical stress. Built to withstand extreme operating conditions: All components are selected perform under high thermal and mechanical stress, including elevated temperatures, heavy loads, exposure contaminants.

part #: p400210444249 prices

• $64.12-$78.12

specifications bearingmotorcycleiz:

• for models: Cr250r
• for makes: Honda
• for years: 1984-1991
• brand: Athena
• mpn: P400210444249
• part type: Bearing Seal Crankshaft

offer bearingmotorcycleiz:

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

payments bearingmotorcycleiz:

• wallet: Google-pay
• credit card: Discover
• other

shipping bearingmotorcycleiz:

• class: Standard
• type: Fixed
• service: FedEx Ground / FedEx Home Delivery
• cost: $0.00
• carrier: FedEx
• transit: 5-8 Days

general bearingmotorcycleiz:

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

returns bearingmotorcycleiz:

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

seller bearingmotorcycleiz:

• rating: 99.8%
• # reviews: 249772
• city: Wilmington,

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