fits model: Cr250r.

( Brand: Cometic Gasket ), ( Manufacturer Part Number: C7697 ), ( Part Type: Gasket Seal Crank Crankshaft ), ( Make: Honda ), ( Year: 1991, 1990, 1989, 1988, 1987, 1986, 1985, 1984, 1 )
The **Cosmetic Gasket C7697 Crankshaft Seal Kit (41-7003)** is a premium, high-performance sealing solution meticulously engineered to restore and enhance the integrity of your engine s crankshaft seal, ensuring optimal lubrication retention and preventing costly oil leaks. Designed for applications with a **68.00mm crankshaft diameter**, this kit features a **high-quality rubber composite seal** reinforced with durable synthetic fibers, delivering superior resilience against heat, pressure, and mechanical stress. The seal s precision-engineered lip design guarantees a tight, consistent fit, minimizing the risk of oil leakage while maintaining smooth crankshaft operation. This kit is ideal for a wide range of automotive and light-duty industrial engines, including those found in classic and modern vehicles, where maintaining engine cleanliness and performance is critical. The **41-7003 part number** ensures compatibility with aftermarket and OEM specifications, making it a reliable upgrade for both restoration projects and routine maintenance. Whether you're tackling a leaky oil pan gasket, a worn-out crankshaft seal, or preparing for an engine rebuild, this kit provides the durability and precision needed to keep your engine running efficiently for years to come. Its easy installation and long-lasting performance make it a trusted choice for mechanics and DIY enthusiasts alike.
**Pros and Cons of buying a Cosmetic Gasket C7697 Crankshaft Seal Kit (41-70003, 68.00mm)**
### **Pros:**1. **Compatibility** This kit is designed specifically for engines with a 68.00mm crankshaft seal interface, making it a direct replacement for common applications (e.g., certain Ford, GM, or Chrysler engines). The part number (41-70003) suggests it is a well-mapped seal for aftermarket and OEM use.
2. **Quality Materials** Cosmetic Gasket (a brand under Cosworth) is known for producing high-quality seals made from durable materials like nitrile rubber or EPDM, which offer good resistance to oil, heat, and wear. This helps prevent leaks over time.
3. **Ease of Installation** The kit typically includes pre-lubricated seals, making installation smoother and reducing the risk of damage during fitting. Proper installation instructions are usually provided, which can help avoid common mistakes.
4. **Cost-Effective Solution** Replacing a failing crankshaft seal is often cheaper than overhauling the entire engine. This kit provides a straightforward fix for oil leaks at the rear main seal area, potentially saving hundreds or thousands in labor and parts if the issue is isolated to the seal.
5. **Warranty and Support** Reputable brands like Cosmetic Gasket often stand behind their products with warranties or customer support. This can be reassuring if installation issues or premature failure occur.
6. **Performance Reliability** A properly installed crankshaft seal ensures a tight seal, preventing oil leaks that could lead to engine damage (e.g., oil starvation, contamination of transmission fluid). This extends the life of the engine and related components.
7. **Aftermarket Trust** Cosmetic Gasket is a well-regarded brand in the performance and restoration community, suggesting that the product meets industry standards for durability and performance.
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### **Cons:**1. **Potential for Improper Installation** If not installed correctly (e.g., improper torque, misalignment, or lack of lubrication), the seal can fail prematurely or damage the crankshaft or housing. This requires careful attention to the installation process.
2. **Limited Engine Compatibility** While the 68.00mm size is common, not all engines with this measurement are identical in terms of housing dimensions or seal mounting. Double-checking the exact application (e.g., engine model, year, and manufacturer) is critical to avoid purchasing the wrong part.
3. **Additional Labor Costs** Replacing a crankshaft seal often requires removing the transmission or flywheel, which can be labor-intensive. If you re not experienced with engine work, professional installation may be necessary, adding to the total cost.
4. **Risk of Contamination** If the old seal was leaking, there may be debris or old seal material left in the housing. Failure to clean this thoroughly can cause the new seal to fail or wear unevenly.
5. **Compatibility with Modern Engines** Some newer engines may have stricter tolerances or require specialized seals (e.g., those with integrated magnetic plugs for oil analysis). Ensure the kit is suitable for your specific engine configuration.
6. **Quality Variability** While Cosmetic Gasket is generally reliable, counterfeit or low-quality imitations exist in the aftermarket. Purchasing from an authorized dealer or reputable online retailer reduces this risk.
7. **Potential for Overkill** If the engine has other underlying issues (e.g., worn bearings, cracked housing, or a failing crankshaft), replacing just the seal may not be a permanent fix. A full engine inspection is advisable before proceeding.
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### **Conclusion:**The **Cosmetic Gasket C7697 Crankshaft Seal Kit (41-70003, 68.00mm)** is a solid choice for addressing oil leaks at the rear main seal in compatible engines. Its high-quality materials, ease of installation, and reputation for reliability make it a practical option for DIYers or professionals. However, success depends on proper preparation, precise installation, and ensuring the kit matches your engine s exact specifications.
If you re confident in your mechanical skills and have verified the part s compatibility, this kit is a cost-effective and durable solution. For those less experienced, consulting a mechanic or performing thorough research on the installation process is highly recommended.
**Recommendation:**- **Buy the kit** if you ve confirmed it fits your engine (68.00mm crankshaft seal interface) and are prepared to install it correctly.
- **Supplement with additional supplies** like sealant (if required), cleaners, and tools (e.g., puller for the old seal, torque wrench).
- **Consider professional installation** if you lack experience with engine disassembly or if the engine is high-value.
- **Inspect the engine** for related issues (e.g., worn bearings, housing cracks) to avoid recurring problems.
For most applications, this kit offers a balance of quality and affordability, making it a worthwhile investment for preventing oil leaks and protecting engine longevity.
Oil seals meet and exceed OEM specifications. Any damage claims may be exchanged for the identical item only. Cometic, Crankshaft Seals, This item fits the following model's: Honda CR250R 1991, Honda 1990, 1989, 1988, 1987, 1986, 1985, 1984, 1983. Sold as: Set.