1. Performance Racing Parts Offers
  2. sku: 17015236416402711
  3. UNITED PACIFIC 23940

UNITED PACIFIC Air Brake Valve Control Knob Deluxe Screw Wi 710270239405

23940 United Pacific Air Brake Valve Control Knob Deluxe Aluminum Screw On Wi

( Brand: United Pacific ), ( Manufacturer Part Number: 23940 ), ( Part Type: Valve Control Aluminum Brake Screw ), ( UPC: 710270239405 )

Review UNITED PACIFIC Air Brake Valve Control Knob Deluxe Aluminum Screw On Wi

The **United Pacific 23940 Air Brake Valve Control Knob (Deluxe Screw-in)** is a precision-engineered component designed for heavy-duty air brake systems, offering both reliability and ease of use in demanding industrial and commercial applications. Crafted from high-quality, durable materials, this control knob features a robust, screw-in design that ensures a secure and stable fit within the valve housing, minimizing the risk of loosening or misalignment under heavy operational stress. Its sleek, ergonomic shape is thoughtfully contoured for a comfortable grip, allowing operators to adjust air brake controls with confidence and precision, even during prolonged use or in challenging environmental conditions. The knob s polished, corrosion-resistant finish not only enhances its aesthetic appeal but also protects against the elements, ensuring longevity even in exposure to moisture, dust, or extreme temperatures. Engineered to meet stringent industry standards, this valve control knob is compatible with a wide range of air brake systems, making it a versatile and dependable choice for fleets, railroads, and industrial equipment. Whether installed in a locomotive, truck, or specialized machinery, the 23940 control knob delivers smooth, responsive operation, contributing to safer and more efficient braking performance. Its durable construction and reliable functionality make it an essential upgrade for any air brake system requiring both performance and durability.

**Pros and Cons of buying a United Pacific 23940 Air Brake Valve Control Knob (Deluxe Screw-in)**

### **Pros**

1. **Durability and Quality Construction** The United Pacific brand is known for manufacturing robust, long-lasting components designed to withstand heavy-duty use in rail applications. The screw-in design suggests a secure, leak-resistant fit, reducing the risk of failure over time.

2. **Compatibility with Air Brake Systems** This specific part is designed for air brake control systems, which are critical for train operations. Its compatibility ensures proper function with existing brake mechanisms, reducing the need for additional modifications.

3. **Easy Installation** The screw-in design simplifies replacement or maintenance, allowing technicians to swap out the knob without extensive tools or adjustments. This can save time and labor costs during repairs or upgrades.

4. **Enhanced Functionality** The "deluxe" designation may imply improved ergonomics or additional features, such as a smoother grip or better tactile feedback, which can improve operator control and reduce fatigue during long shifts.

5. **Widely Available and Supported** As a well-established brand, United Pacific parts are likely to be readily available from suppliers, and technical support or replacement parts may be easier to obtain if needed.

6. **Regulatory Compliance** Rail operations often require adherence to strict safety standards. This part is likely designed to meet industry regulations, ensuring that your equipment remains compliant with operational requirements.

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### **Cons**

1. **Cost** High-quality rail components, especially branded parts like United Pacific, can be more expensive than generic or aftermarket alternatives. The price may be a significant investment, particularly for smaller fleets or individual operators.

2. **Potential Overkill for Light-Duty Use** If the air brake system is not subjected to extreme conditions or heavy use, the premium features of this "deluxe" knob may not be necessary. A standard model could suffice, reducing unnecessary expenditure.

3. **Limited Customization** Unlike some aftermarket parts, this may not offer customizable features (e.g., color, grip texture, or additional controls), which could be a drawback if aesthetic or ergonomic preferences are a priority.

4. **Dependence on Brand Loyalty** If the part is proprietary or less interchangeable with other brands, switching suppliers in the future could become more difficult. This may limit flexibility if cost-effective alternatives emerge later.

5. **Maintenance Requirements** While durable, all mechanical components require periodic inspection. The screw-in design, while convenient, may also mean that seals or threads could degrade over time, necessitating occasional maintenance or replacement.

6. **Lead Times for Replacement** Given its specialized nature, ordering additional units may require advance notice, potentially causing delays if spares are needed urgently.

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### **Conclusion**

The **United Pacific 23940 Air Brake Valve Control Knob (Deluxe Screw-in)** is a high-quality, reliable component ideal for rail applications where durability, compatibility, and ease of installation are critical. Its premium construction and brand reputation make it a strong choice for operators prioritizing long-term performance and safety. However, the higher cost and potential over-specification for lighter-duty use may not justify the purchase for all buyers.

For **rail fleets, maintenance crews, or operators in demanding environments**, this part is highly recommended due to its robustness and compatibility with air brake systems. For **smaller operators, hobbyists, or those on a tight budget**, weighing the cost against the specific needs of the application is essential alternative, slightly less expensive options may suffice without compromising safety.

**Final Recommendation:**

If your air brake system is part of a **commercial or industrial rail operation** where reliability and longevity are non-negotiable, the United Pacific 23940 is a worthwhile investment. However, if you are working with a **small-scale or low-usage system**, evaluate whether the "deluxe" features are essential before purchasing. Always verify compatibility with your existing setup and consult with a rail technician if unsure.

Details:

Manufactured following strict OE standards to work like the original component. Engineered with a factory-like design for effortless installation, ensuring perfect match your vehicle. United Pacific 23940 Air Brake Valve Control Knob Deluxe, Aluminum, Screw On, Wi: Part Number: Manufacturer. Made of high-quality components for durability, reliability, and performance.

Designed specifically for trucks, trailers, and buses. Engineered using the latest technology to ensure product lasts longer in service.

part #: 23940 prices

  • $107.74-$197.38

specifications accperformanc:

  • brand: United Pacific
  • mpn: 23940
  • part type: Valve Control Aluminum Brake Screw
  • upc: 710270239405

payments accperformanc:

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

offer accperformanc:

  • sold: 0
  • options: Ship-to-home
  • started: May 20, 2026
  • quantity: 5
  • availability: In Stock
  • best offers: True

returns accperformanc:

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

general accperformanc:

  • Parts Accessories > Permance Racing Parts > Accessories
  • condition: New

seller accperformanc:

  • city: Los Angeles, California
  • # reviews: 70732
  • rating: 99.4%

shipping accperformanc:

  • type: Fixed
  • cost: $0.00
  • class: Standard
  • transit: 3-8 Days
  • service: Standard
part type: valve control aluminum brake screw,
category: auto parts > racing parts > accessories, sku: 17015236416402711,
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