MOLEX P4779A Bench Terminal Crimping Press Die Head BU7179

( Brand: Molex ), ( Manufacturer Part Number: P4779A ), ( Type: Bench Crimping Press ), ( California Prop 65 Warning: Warning ), ( Country Of Origin: United States ), ( Unit Type: Unit ), ( Custom Bundle: No )

Review MOLEX Bench Terminal Crimping Press Die Head Lot

The **Molex P4779A Bench Terminal Crimping Press with BU7179 Die Head (13)** is a precision-engineered tool designed for professionals who demand reliability, efficiency, and versatility in their wire termination tasks. This robust bench-mounted crimping press combines durability with adaptability, making it an indispensable asset for electrical contractors, automotive technicians, aerospace engineers, and industrial manufacturers alike. The P4779A features a sturdy, heavy-duty frame constructed from high-grade steel, ensuring stability and longevity even under repeated high-force applications. Its compact yet robust design allows for seamless integration into tight workspaces, while the ergonomic handle provides a comfortable grip for extended use, reducing operator fatigue during prolonged crimping sessions.

At the heart of this tool lies the **BU7179 Die Head (13)**, a specialized component engineered to deliver consistent, high-quality crimps on a wide range of Molex connectors, including terminal blocks, pin headers, and other precision-mated components. This die head is designed to accommodate Molex s **Series 13 connectors**, which are widely used in automotive wiring harnesses, industrial control panels, and telecommunications systems due to their secure, corrosion-resistant performance. The die head s precision-ground jaws ensure clean, repeatable crimps, minimizing the risk of loose connections or damaged wires a critical factor in applications where reliability is non-negotiable. The tool s adjustable pressure mechanism allows operators to fine-tune the crimping force, accommodating variations in wire gauge and connector type without compromising integrity.

Beyond its technical capabilities, the Molex P4779A excels in practicality, offering features that enhance workflow efficiency. The press includes a **quick-release die head system**, enabling rapid swapping between different Molex die heads (such as the BU7179) to accommodate various connector sizes and types without the need for additional tools. This modularity ensures that users can maintain a single, versatile crimping station rather than juggling multiple standalone tools. Additionally, the press s **bench-mounted design** secures it firmly in place, eliminating the risk of slippage or misalignment during operation, while the integrated **pressure gauge** provides real-time feedback, allowing operators to verify that each crimp meets the manufacturer s specifications. For environments where traceability and quality control are paramount, the tool s consistent performance contributes to compliance with industry standards like ISO 9001 and automotive specifications such as AEC-Q200.

Safety and ease of use are also prioritized in the P4779A s design. The tool incorporates **safety guards** to protect fingers from accidental contact with the die head, while the **ergonomic handle** reduces strain during extended use. The press s **low-maintenance construction** means that routine upkeep is minimal, with only periodic lubrication of moving parts required to sustain optimal performance. When paired with Molex s high-quality connectors, this crimping press delivers a seamless crimping experience that bridges the gap between manual dexterity and automated precision, making it a preferred choice for both small-scale repair shops and large-scale manufacturing facilities. Whether crimping delicate signal wires or robust power connectors, the Molex P4779A with BU7179 Die Head (13) stands as a testament to Molex s commitment to innovation, durability, and performance in the world of electrical termination.

The Molex P4779A Bench Terminal Crimping Press with the BU7179 Die Head (13) is a popular tool for crimping Molex-style connectors, particularly in electronics assembly, wiring harness manufacturing, and DIY projects. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

---

### **Pros**

1. **Precision and Consistency**

The P4779A is designed for high-precision crimping, ensuring uniform and reliable connections. The adjustable pressure and dedicated die head (BU7179) are optimized for Molex 13-pin connectors, reducing the risk of over-crimping or under-crimping, which can lead to poor electrical contact or connector failure.

2. **Durability and Build Quality**

Molex tools are known for their robust construction, often featuring hardened steel dies and sturdy frames. The P4779A is no exception, built to withstand frequent use in industrial or workshop environments. The bench-mounted design provides stability, minimizing vibration and ensuring clean, repeatable crimps.

3. **Versatility with Compatible Die Heads**

While this specific model pairs with the BU7179 die head for Molex 13-pin connectors, Molex offers a range of interchangeable die heads (e.g., BU7178, BU7180) that can be used with the same press. This allows users to expand functionality for other connector types (e.g., 10-pin, 15-pin, or other Molex styles) without purchasing additional presses.

4. **Bench-Mounted Design**

The bench-mounted setup keeps the tool secure and accessible, reducing the need for hand-held tools that can introduce human error. It also frees up workspace, as the tool remains stationary while you work.

5. **Adjustable Pressure Control**

Many Molex crimping tools, including this one, feature an adjustable pressure mechanism. This allows users to fine-tune the crimp force based on wire gauge, connector type, or material (e.g., copper vs. tinned copper). Proper pressure control is critical for maintaining consistent quality and avoiding damage to wires or connectors.

6. **Compatibility with Molex Connectors**

Molex connectors are widely used in industries like automotive, aerospace, and consumer electronics. The P4779A is specifically engineered for Molex s 13-pin series, ensuring a perfect fit and reliable performance. This compatibility reduces the need for third-party adapters or improvised solutions.

7. **Ease of Use**

The tool is designed with ergonomics in mind. The bench mount keeps it stable, and the die head is easily accessible for loading/unloading connectors. The crimping action is straightforward, requiring minimal training for basic use.

8. **Warranty and Support**

Molex is a reputable brand with a history of supporting its tools. The P4779A typically comes with a warranty, and Molex offers customer service, replacement parts, and technical support. This can be valuable if the tool requires maintenance or if you encounter issues.

9. **Cost-Effective for High-Volume Work**

While the initial cost may seem high, the P4779A is designed for efficiency. It reduces labor time by ensuring quick, consistent crimps, which can offset costs in professional or high-volume settings. It also minimizes waste from poorly crimped connectors, which can be costly in mass production.

10. **Compatibility with Other Molex Accessories**

Molex offers additional accessories like wire strippers, connector feeders, and lubrication tools that can integrate with the P4779A. This ecosystem can streamline workflows further, especially in automated or semi-automated setups.

---

### **Cons**

1. **High Initial Cost**

The P4779A is not a budget-friendly tool. For hobbyists or those working on small-scale projects, the upfront cost may be prohibitive. There are cheaper alternatives (e.g., hand crimpers or basic bench presses) that can suffice for occasional use.

2. **Limited to Molex Connectors**

While the tool is excellent for Molex connectors, it is not universal. If you work with other connector types (e.g., AMP, JST, or custom connectors), you may need additional die heads or separate tools. This can add to the overall cost and complexity.

3. **Space Requirements**

As a bench-mounted tool, the P4779A requires dedicated workspace. If you have limited bench space or work in a cluttered environment, this may not be ideal. Hand-held crimpers or portable presses offer more flexibility in terms of workspace.

4. **Learning Curve for Optimal Use**

While the tool is user-friendly, achieving optimal crimping results especially for different wire gauges or materials requires some practice. Misadjusting the pressure or using the wrong die head can lead to poor connections. Beginners may need to experiment or seek guidance to master the tool.

5. **Maintenance and Die Wear**

Like any mechanical tool, the P4779A and its die heads will wear over time, especially with heavy or frequent use. Dull or damaged dies can result in inconsistent crimps. While Molex tools are durable, they may require occasional sharpening or replacement of die heads, adding to long-term costs.

6. **Not Suitable for All Environments**

The bench-mounted design is ideal for stationary workstations but may not be practical for fieldwork or mobile applications. If you need to crimp connectors on-site (e.g., in automotive repairs or outdoor installations), a hand-held crimper would be more appropriate.

7. **Dependence on Molex s Ecosystem**

If you rely heavily on Molex connectors, this tool is a great fit. However, if you use a mix of connector types, you may find yourself investing in multiple tools or die heads from other manufacturers, which can complicate inventory and workflow.

8. **Potential for Overkill for Small Projects**

For casual DIYers or those working on a few connectors occasionally, the precision and features of the P4779A may be unnecessary. A simple hand crimper or even a pair of pliers could achieve the same result with less expense and complexity.

---

### **Conclusion**

The Molex P4779A Bench Terminal Crimping Press with the BU7179 Die Head is a high-quality, precision tool tailored for professionals or serious hobbyists who work extensively with Molex 13-pin connectors. Its strengths lie in its durability, consistency, and compatibility with Molex s ecosystem, making it an excellent choice for industrial, automotive, or electronics assembly environments where reliability is critical. The adjustable pressure and bench-mounted design further enhance its utility for high-volume or professional settings.

However, the tool s high cost, space requirements, and specialization for Molex connectors may not justify the investment for casual users or those working with diverse connector types. Additionally, the learning curve and maintenance needs should be considered, especially for users new to crimping tools.

---

### **Recommendation**

- You work professionally with Molex connectors (e.g., in automotive wiring, electronics manufacturing, or aerospace).

- You require consistent, high-quality crimps for large volumes of connectors.

- You have the workspace and budget to invest in a premium tool that will last for years.

- You plan to use other Molex die heads in the future, as the press is compatible with multiple heads.

- You are a hobbyist or DIYer working on small-scale projects where a hand crimper or basic press would suffice.

- You work with a variety of connector types beyond Molex, as you may need additional tools.

- You have limited workspace or need a portable solution for fieldwork.

- You are on a tight budget and cannot justify the upfront cost without long-term use.

- For hobbyists: A hand crimper like the **Knipex 54-30-0** or **Ideal Tools 2000** is more affordable and portable.

- For mixed connector types: A multi-die head press like the **Ideal Tools 2000** or **JST CR-10** may offer more versatility.

- For industrial use with other brands: A universal bench press with interchangeable dies (e.g., **Ideal Tools 3000**) could be a cost-effective alternative if you don t exclusively use Molex connectors.

Details:

part #: p4779a prices

• $370.00-$1291.00

specifications automationjack:

• brand: Molex
• mpn: P4779a
• type: Bench Crimping Press
• california prop 65 warning: Warning
• country of origin: United States
• unit type: Unit
• custom bundle: No

offer automationjack:

• availability: In Stock
• options: Seller-arranged-local-pickup
• sold: 0
• quantity: 1
• started: May 30, 2026
• best offers: True

general automationjack:

• Business Industrial > Industrial Automation Motion Controls > Other Automation Equipment
• condition: Used

payments automationjack:

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

seller automationjack:

• city: Garden Grove, California
• # reviews: 24721
• rating: 99.6%

shipping automationjack:

returns automationjack:

• method: Money back
• paid by: Buyer
• policy: Returns Accepted
• time: 30 Days

Molex P4779A Is Similar To:

• Molex Oscm1739 Bench Terminal Crimping Press With Omos-1739 Die Head Lot 12 (85.9% similar) Part #: Molex OSCM1739 for sale...(May 30th, 2026)