PARKER HANNIFIN 391-2882-140 Pack Buna Seal Pump P350

( Brand: Parker Hannifin ), ( Manufacturer Part Number: 391-2882-140 ), ( Part Type: Seal Pump )

Review PARKER HANNIFIN Pack Buna Seal 350 Series Pump Commercial 3912882140

The **Parker Hannifin 391-2882-140 Pack P350 Buna Seal** is a high-performance, precision-engineered sealing solution specifically designed for Parker Hannifin s **350 Series hydraulic pumps**, including models such as the **3912882140**, ensuring optimal fluid containment, reduced leakage, and extended component lifespan. Crafted from **Buna-N (Nitrile) rubber**, this seal is engineered to deliver exceptional resistance to hydraulic fluids, including petroleum-based oils, hydraulic oils, and other common industrial lubricants, while maintaining reliability under demanding operating conditions. The seal s robust construction features a **reinforced lip design**, which enhances its ability to maintain a tight seal even under pressure fluctuations, thermal cycling, and mechanical stress, thereby minimizing the risk of premature wear or failure. Its **compatible dimensions and mounting configuration** ensure a perfect fit within the pump s internal housing, providing a secure barrier against fluid leakage while allowing for smooth rotational movement of the shaft. Ideal for applications in heavy-duty machinery, construction equipment, agricultural machinery, and industrial automation, this seal is built to withstand high-pressure environments, extreme temperatures, and abrasive contaminants, making it a critical component for maintaining the efficiency and longevity of Parker Hannifin s **350 Series pumps**. Whether used in new installations or as a replacement part, the **391-2882-140 Pack P350 Buna Seal** exemplifies Parker Hannifin s commitment to durability, precision, and performance, ensuring seamless operation in even the most challenging hydraulic systems.

### **Pros and Cons of buying a Parker Hannifin 391-2882-140 Pack (P350 Buna Seal) for a 350 Pump (Part Number 3912882140)**

1. **Compatibility and Fit** This seal pack is specifically designed for the Parker Hannifin 350 series pumps, particularly the 3912882140 model. Using the correct part ensures proper sealing, reducing the risk of leaks and premature wear.

2. **Material Quality** The P350 Buna-N (nitrile) rubber is a durable, oil-resistant elastomer commonly used in hydraulic systems. It provides good resistance to fuel, oil, and hydraulic fluids, making it suitable for heavy-duty applications.

3. **Extended Seal Life** Properly installed Buna-N seals typically have a longer service life compared to cheaper or mismatched alternatives, reducing maintenance frequency and downtime.

4. **Ease of Installation** The seal pack is pre-assembled, which simplifies installation compared to sourcing individual seals separately. This can save time and reduce the chance of human error during assembly.

5. **Warranty and Reliability** Parker Hannifin is a well-established manufacturer with a reputation for quality. Purchasing from an authorized dealer or directly from Parker may come with warranty coverage, ensuring replacement if defective.

6. **Cost-Effective in the Long Run** While the upfront cost may be higher than generic alternatives, the longevity and reliability of Parker seals can lead to lower total cost of ownership over time.

7. **Availability of Technical Support** Parker provides technical documentation, installation guides, and customer support, which can be invaluable for proper installation and troubleshooting.

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1. **Higher Upfront Cost** Compared to generic or aftermarket seal kits, Parker Hannifin parts are typically more expensive. This may be a barrier for budget-conscious buyers or small operations.

2. **Potential Overkill for Light-Duty Use** If the pump operates in mild conditions (e.g., low pressure, clean fluids), a more affordable generic seal may suffice without sacrificing performance.

3. **Compatibility Risks with Modifications** If the pump has been modified or repurposed (e.g., for non-hydraulic fluids), the P350 Buna-N seal may not be fully compatible, leading to premature failure or leaks.

4. **Lead Times for Replacement** Depending on the supplier, Parker Hannifin parts may have longer lead times compared to widely stocked generic alternatives, which could cause delays in maintenance.

5. **Potential for Counterfeit Parts** Purchasing from unauthorized sellers (e.g., third-party marketplaces) risks receiving counterfeit or substandard parts, which could fail quickly and void warranties.

6. **Overengineering for Simple Applications** In some cases, the robust design of Parker seals may be unnecessary for basic applications, where simpler, less expensive seals would work just as well.

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### **Conclusion**

The **Parker Hannifin 391-2882-140 Pack (P350 Buna Seal) for the 350 Pump (3912882140)** is a high-quality, reliable choice for hydraulic systems where performance, durability, and compatibility are critical. Its advantages in terms of fit, material quality, and longevity make it ideal for industrial, heavy-duty, or mission-critical applications. However, the higher cost and potential overkill for simpler setups may not justify the purchase for all users.

For most **original equipment manufacturer (OEM) applications, aftermarket repairs, or high-stress environments**, this seal pack is the **recommended choice** due to its proven reliability. If budget is a concern and the application is low-stress, a **high-quality generic Buna-N seal kit** (from reputable brands like **Johnston Pump, Gates, or Flexseal**) could be a cost-effective alternative provided it meets the pump s specifications.

- You need OEM-level reliability and warranty support.

- The pump operates in harsh conditions (high pressure, contaminated fluids, or extreme temperatures).

- You prioritize long-term performance over upfront cost.

- The application is low-stress and budget is a constraint.

- You ve verified that a compatible generic seal meets the pump s requirements.

- You re purchasing from a trusted supplier to avoid counterfeit parts.

Always **verify compatibility** with the pump s manual or Parker s technical documentation before purchasing. If in doubt, consult a hydraulic specialist or Parker s customer support.

Details:

Part Number - Commercial: 391-2882-140. 4 pack Parker Hannifin P350 Buna Seal for 350 Series Pump Commercial: Pack of Genuine.

part #: 3912882140 prices

• $999.95-$1826.00

specifications hydraulimoto:

• brand: Parker Hannifin
• mpn: 391-2882-140
• part type: Seal Pump

offer hydraulimoto:

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

payments hydraulimoto:

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

seller hydraulimoto:

• # reviews: 6112
• city: Olathe, Kansas
• rating: 99.8%

returns hydraulimoto:

• policy: No Returns

shipping hydraulimoto:

• class: Standard
• transit: 3-6 Days
• cost: $0.00
• service: Standard
• type: Fixed

general hydraulimoto:

• condition: New Open box
• Business Industrial > Hydraulics, Pneumatics, Pumps Plumbing > Hydraulic Pneumatic Motors

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