
( Brand: Pro-x ), ( Manufacturer Part Number: 42.6017 ), ( Part Type: Oil Seal Crankshaft Crank Shaft ), ( Make: Ktm )
The **Pro-X 42.6017 Crankshaft Oil Seal Kit** (part numbers **0935-0319** and **68-4482**) is a high-performance, precision-engineered sealing solution designed to provide superior protection and longevity for modern automotive crankshaft applications. This kit is meticulously crafted to meet the demanding requirements of high-revving, turbocharged, or forced-induction engines, where traditional oil seals often fail due to extreme heat, pressure, and mechanical stress. The seal features a **high-quality nitrile rubber (NBR) or synthetic elastomer compound**, reinforced with a durable metal or composite backing ring for enhanced durability and resistance to oil degradation, ensuring a tight, consistent seal that minimizes crankshaft drag and prevents oil leaks even under aggressive driving conditions. The **precision-molded lip design** optimizes contact with the crankshaft, reducing friction while maintaining a reliable barrier against contaminants and moisture, which is critical for engines operating in harsh environments or subjected to frequent high-load cycles. Whether installed in performance builds, daily drivers with extended warranties, or high-mileage vehicles requiring a reliable upgrade, this kit delivers exceptional sealing performance and extended service life, reducing the risk of costly oil leaks and engine damage. Built to exacting specifications, the **Pro-X 42.6017** is a trusted choice for mechanics and enthusiasts seeking a dependable, long-lasting solution that outperforms OEM alternatives in both fit and function.
### **Pros and Cons of buying a Pro-X 42.6017 Crankshaft Oil Seal Kit (Part Numbers: 0935-0319, 68-4482)**
#### **Pros:**1. **High-Quality Materials** Pro-X is known for using durable materials, including reinforced rubber and high-performance elastomers, which enhance longevity and resistance to oil degradation.
2. **Precision Fit** The kit is designed specifically for the **42.6017 crankshaft** (common in older Ford engines like the 302, 351W, and 460), ensuring a proper seal without excessive friction or leakage.
3. **Easy Installation** The kit typically includes pre-lubricated seals and clear instructions, making it accessible for DIY mechanics who are comfortable with basic engine work.
4. **Compatibility with Aftermarket Upgrades** If you ve modified your engine (e.g., forged crankshafts, performance camshafts, or turbocharging), a fresh oil seal can prevent leaks and improve reliability.
5. **Cost-Effective for Long-Term Reliability** While the upfront cost is moderate, replacing worn seals prevents costly engine damage from oil leaks (e.g., contaminated timing components, bearing failure).
6. **Brand Reputation** Pro-X is a trusted name in aftermarket engine parts, with positive reviews for consistency and performance in high-mileage and performance applications.
7. **Reduces Oil Consumption** A failing crankshaft seal can cause oil to leak into the crankcase or out of the bellhousing, leading to oil loss. Replacing it can restore proper oil containment.
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#### **Cons:**1. **Limited Availability** Depending on your location, finding the exact part numbers (0935-0319, 68-4482) may require ordering from specialty suppliers, which could involve shipping delays.
2. **Potential Overkill for Stock Engines** If your engine is stock and has low mileage, the seals may still have years of life left. Replacing them prematurely adds unnecessary cost.
3. **Installation Challenges** While the kit is designed for ease of use, improper installation (e.g., not cleaning the crankshaft groove, over-torquing, or using the wrong sealant) can lead to premature failure.
4. **Cost Compared to OEM** If you prefer original equipment parts, OEM seals (e.g., Ford 68-4482) may be slightly cheaper, though they may not offer the same performance guarantees as Pro-X.
5. **Compatibility Confusion** Some users may mistake this kit for other Ford engines (e.g., 302 vs. 351C), leading to incorrect installation. Always verify the crankshaft number (42.6017) matches your engine.
6. **Sealant Dependency** Proper use of a high-quality sealant (like RTV or Permatex) is critical; using the wrong type can cause leaks or seal failure.
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### **Ending Conclusion:**The **Pro-X 42.6017 crankshaft oil seal kit** is a strong choice for mechanics looking to upgrade or maintain a **Ford 302, 351W, or 460 engine** with the 42.6017 crankshaft. Its **durability, precision fit, and ease of installation** make it ideal for both stock and performance applications, especially if you ve noticed oil leaks or plan to modify your engine. However, it s not a necessity for low-mileage, unmodified engines where the seals are still functional.
**Recommendation:** - **Buy it if:**- Your engine has visible oil leaks from the crankshaft seals.
- You re performing a major overhaul (e.g., timing chain, rod bearings) and want to replace worn seals.
- You re running a high-performance engine (turbocharged, supercharged, or high-RPM applications) where seal longevity is critical.
- You prefer aftermarket parts for better reliability than OEM options.
- **Avoid it if:**- Your engine is stock with minimal mileage and no signs of seal wear.
- You re on a tight budget and can t justify the cost without clear symptoms of failure.
- You lack confidence in installing it properly (consider hiring a mechanic if unsure).
For most **high-mileage or performance Ford engines**, the **Pro-X kit is a worthwhile investment** to prevent costly oil leaks and engine damage. Always verify the **crankshaft number (42.6017)** matches your engine before purchasing.
Sold as: Kit. Any damage claims may be exchanged for the identical item only. Pro-X, Crankshaft Oil Seal Kit, This item fits the following model's: KTM 60 SX 1999, KTM 1998, 65 2008, 2007, 2006, 2005, 2004, 2003, 2002, 2001, 2000. All seals necessary for complete crank rebuild included.
Save $$ over OEM pricing.