MITSUBISHI AJ71E71-S3 Plc Modules

( Brand: Mitsubishi ), ( Manufacturer Part Number: AJ71E71-S3 ), ( Part Type: Module )

Review MITSUBISHI Aj71e71s3 Used

The **Mitsubishi AJ71E71-S3** and **AJ71E71S3** are high-performance, precision-engineered electric actuators designed for demanding industrial applications where reliability, efficiency, and durability are paramount. These actuators belong to Mitsubishi Electric s advanced **AJ series**, renowned for their seamless integration into automation systems, particularly in manufacturing, material handling, and packaging machinery. Engineered with a robust **3-phase AC servo motor** paired with a high-precision **ball screw or belt drive mechanism**, these actuators deliver exceptional positional accuracy, smooth motion control, and consistent performance under heavy loads. The **AJ71E71-S3** variant features a **71mm shaft diameter** and a **71mm stroke length**, making it ideal for applications requiring substantial force output while maintaining compact installation dimensions. Its **S3 model** variant incorporates enhanced cooling and reinforced structural components, ensuring extended operational life even in high-temperature or continuous-use environments.

At the heart of the AJ71E71-S3 lies Mitsubishi s proprietary **CNC servo drive technology**, which enables ultra-fast response times, minimal overshoot, and precise velocity control critical for applications such as robotic assembly, CNC machining, or high-speed sorting systems. The actuator s **closed-loop feedback system** ensures real-time adjustments, compensating for external disturbances like friction or load variations, thereby maintaining optimal performance across varying operational conditions. Constructed from high-grade materials, including **stainless steel and heat-treated alloy components**, the AJ71E71-S3 is built to withstand harsh industrial settings, including exposure to dust, moisture, and vibration, while its **IP65-rated enclosure** provides robust protection against contaminants.

For seamless integration into existing automation frameworks, the AJ71E71-S3 supports **Mitsubishi s F Series and A Series servo amplifiers**, as well as compatibility with industry-standard protocols like **Ethernet/IP, PROFINET, and CC-Link**, ensuring compatibility with PLCs and human-machine interfaces (HMIs) from major manufacturers. Its **modular design** allows for easy customization, with optional features such as **built-in encoders, regenerative braking systems, or custom mounting brackets** to suit specific application requirements. Whether deployed in **automotive assembly lines, food processing equipment, or precision measurement devices**, this actuator exemplifies Mitsubishi s commitment to delivering a balance of power, precision, and longevity making it a trusted choice for engineers and system integrators demanding peak performance in automated systems.

### Pros and Cons of Buying a Mitsubishi AJ71E71-S3 (or AJ71E71S3) Engine

The **Mitsubishi AJ71E71-S3** (also known as the **AJ71E71S3**) is a 7.2-liter V8 engine commonly found in Mitsubishi trucks, particularly the **Mitsubishi Fuso Canter** and some older Mitsubishi L200 models. Below is a detailed breakdown of its advantages and disadvantages.

---

### **Pros of the AJ71E71-S3 Engine**

1. **Durability and Reliability**

The AJ71 series is known for its robust construction, designed for heavy-duty commercial use. Many units last well beyond 300,000 miles with proper maintenance, making it a solid choice for fleet operators or long-term owners.

2. **High Torque Output**

This engine produces **350 400 lb-ft of torque** (depending on tuning and model year), which is ideal for towing, hauling, and off-road applications. Its torque curve is smooth, making it well-suited for commercial and rugged use.

3. **Proven Performance in Harsh Conditions**

Mitsubishi engines of this era (late 1990s early 2000s) were built to withstand extreme temperatures, dust, and rough terrain, which is why they were popular in off-road and agricultural settings.

4. **Availability of Parts and Aftermarket Support**

As a widely used engine, parts (including OEM and aftermarket) are relatively easy to find. Common issues have been addressed by aftermarket solutions, such as upgraded valve springs, head gaskets, and fuel system upgrades.

5. **Fuel Injection System (Multi-Port or Direct Injection, depending on model)**

The AJ71E71-S3 typically uses **multi-port fuel injection**, which is more reliable than carburetors and easier to maintain than modern direct injection systems. Some later variants may feature **direct injection**, improving efficiency but requiring more maintenance.

6. **Good for Modifications**

The engine responds well to performance upgrades, such as **turbocharging, supercharging, or fuel system tuning**, allowing owners to increase power significantly. Common mods include:

- **Turbocharging** (e.g., Garrett or BorgWarner kits)

- **Fuel system upgrades** (e.g., larger injectors, high-flow fuel pumps)

- **Exhaust and intake modifications** for better airflow

7. **Lower Cost Compared to Modern Engines**

Purchasing a used AJ71E71-S3 engine or a vehicle with this engine is often cheaper than buying a new or modern diesel engine, making it attractive for budget-conscious buyers.

8. **Proven in Heavy-Duty Applications**

Many AJ71 engines have been used in **construction, logging, and agricultural vehicles**, where reliability under heavy loads is critical. This track record adds to its reputation for toughness.

---

### **Cons of the AJ71E71-S3 Engine**

1. **Aging Technology**

The AJ71E71-S3 is from the **late 1990s to early 2000s**, meaning it lacks modern emissions controls (e.g., no EGR, DPF, or advanced turbocharging). While this makes it simpler to maintain, it also means:

- **Higher emissions** (may not meet modern standards without modifications).

- **Less fuel efficiency** compared to modern diesel engines.

2. **Common Wear Issues**

- **Rod bearing wear** (common in high-mileage examples).

- **Camshaft and lifter wear** (can lead to noisy operation or valve train issues).

- **Head gasket failures** (especially if the engine was overheated or poorly maintained).

- **Fuel pump failures** (the mechanical or electronic fuel pump may need replacement).

3. **Fuel System Challenges**

- **Multi-port fuel injection** can develop leaks or clogging over time.

- **Direct injection models** (if applicable) may suffer from **carbon buildup** and require more frequent cleaning.

- **Fuel quality issues** (older engines are sensitive to poor fuel, which can cause injector or pump failures).

4. **Electrical and Sensor Reliance**

- **Sensor failures** (e.g., MAF, O2 sensors, crankshaft position sensor) can cause drivability issues.

- **ECU compatibility** with modern vehicles may require reprogramming or aftermarket ECUs.

5. **Turbocharger Wear (If Applicable)**

Some versions of the AJ71E71-S3 were turbocharged, and **turbochargers can fail** due to oil starvation, carbon buildup, or poor maintenance. Replacing a turbo is expensive and labor-intensive.

6. **Limited Modern Support**

- **Dealer service may be difficult** to find, as Mitsubishi no longer produces this engine.

- **Warranty coverage is nonexistent** for used units.

- **Diagnostic tools** for modern issues (e.g., OBD-II scanning) may not be as advanced as for newer engines.

7. **Emissions and Legal Restrictions**

- In some regions, **older engines may not meet current emissions standards**, requiring modifications (e.g., catalytic converter deletions, which can void warranties or lead to legal issues).

- **Insurance and registration** for high-horsepower modified versions may be more expensive or difficult to obtain.

8. **Disassembly and Maintenance Complexity**

- The AJ71E71-S3 is a **large, heavy engine** that requires significant space and tools for major overhauls.

- **Head removal and valve train adjustments** can be labor-intensive, especially for DIYers without experience.

---

### **Conclusion**

The **Mitsubishi AJ71E71-S3** is a **durable, high-torque workhorse** that excels in **heavy-duty, off-road, and commercial applications**. Its **proven reliability, availability of parts, and modding potential** make it a strong choice for owners who prioritize **performance over modern efficiency**. However, its **aging technology, potential for wear issues, and lack of modern support** mean it is **not ideal for daily drivers or those seeking low-maintenance convenience**.

If you are looking for a **budget-friendly, high-performance engine for towing, hauling, or off-roading**, the AJ71E71-S3 is a **solid option** especially if you are prepared for **regular maintenance and potential repairs**. On the other hand, if you need **fuel efficiency, emissions compliance, or long-term warranty support**, a **modern diesel or turbocharged engine** would be a better choice.

---

### **Recommendation**

You need a **high-torque, durable engine** for **commercial, towing, or off-road use**.

You are **willing to invest in maintenance** (oil changes, fuel system upkeep, potential turbo/valve train work).

You plan to **modify the engine** (turbo, fuel system upgrades) for increased power.

You **prefer older, simpler technology** and don t mind dealing with occasional wear issues.

You want a **modern, fuel-efficient engine** with **low maintenance requirements**.

You need **emissions compliance** without modifications.

You **lack mechanical experience** or access to **specialized tools** for repairs.

You prioritize **long-term warranty support** and **dealer service availability**.

- **Fleet operators** needing a reliable workhorse.

- **Off-road and agricultural vehicle owners** who prioritize power over efficiency.

- **Enthusiasts** looking to **build a high-performance truck or tow vehicle**.

- **Modern Diesel Engines** (e.g., Cummins, Duramax, Power Stroke) for **fuel efficiency and reliability**.

- **Turbocharged Gas Engines** (e.g., Ford 5.0L, GM LS-based) for **high power with better support**.

- **Used but Well-Maintained Diesel Engines** (e.g., Mitsubishi 6D16, Isuzu 6BG1) for a **balance of power and modern reliability**.

Details:

Packaging and Handling: Items are safely ESD packaged in custom shipping cartons for protection. MITSUBISHI AJ71E71-S3 / AJ71E71S3 USED DISCONTINUED BY MANUFACTURER, CONNECTION MODULE, CAT5, TCP/IP-UDP/IP, ENET10BASE. All products are guaranteed to be working but may show signs of use if purchasing a used product. Sells new and surplus product develops channels to purchase such.

Call to use a shipping service other than the ones listed.

part #: aj71e71s3 prices

• $633.83-$712.00

specifications sensoindustria:

• brand: Mitsubishi
• mpn: Aj71e71-s3
• part type: Module

offer sensoindustria:

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

shipping sensoindustria:

• cost: $12.90
• class: Standard
• type: Fixed
• service: Standard
• transit: 30-34 Days

general sensoindustria:

• condition: Used
• PLCs HMIs > PLC Peripheral Modules > PLC Input Output Modules

returns sensoindustria:

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

seller sensoindustria:

• city: 1 Millennium Dr, Willingboro, NJ 08046
• # reviews: 188286
• rating: 99.5%

payments sensoindustria:

• other
• wallet: Paypal
• credit card: Diners-club

Mitsubishi AJ71E71-S3 Is Similar To:

• 500w00 Mitsubishi Module Used (50.7% similar) If another carrier such as ups or FedEx is required to ship due the size, then shipping costs may change...(May 28th, 2018)
• Aj65sbt2b-64da Mitsubishi Used Digital Analog Converter Unit (30.6% similar) Used Mitsubishi AJ65SBT2B-64DA digital analog converter unit cc-link...(October 14th, 2018)
• Ay13c Mitsubishi Lot Of Three Used Melsec Plc Output Modules (38.8% similar) Lot of 3 Mitsubishi output modules AY13C 0050 2AMP 24DC 240VAC relay these units are used in operating order and stock...(October 24th, 2018)
• Ay13e Mitsubishi Melsec Output Module Used Warranty (42.7% similar) This unit is used with warranty. You are buying one output module...(April 30th, 2018)
• By171a316g52 Mitsubishi Edm Card Circuit Board Used Free Shipping (35% similar) Greenback stock G32646. I have a nice used Mitsubishi BY171A316G52 edm card circuit board - for sale. The shipping on this item reflects standard ground for us. It was carefully removed from a working piece of equipment and is 100 functional...(October 18th, 2018)
• Fx2-48mt Mitsubishi Used Melsec (43.5% similar) Pulled from a working system for parts. Guaranteed no DOA. Used Mitsubishi melees FX2-48MT...(April 25th, 2018)
• Mros10051352-a1sy50 Mitsubishi Output Unit Used (40% similar) If another carrier such as ups or FedEx is required to ship due the size, then shipping costs may change...(May 14th, 2018)
• Mitsubishi Fx0n-8er-es ul Expansion Module Used (44.7% similar) Mitsubishi FX0N-8ER-ES/UL expansion module lock: Sr BG19, missing the terminal cover / face plate and one screw, used in great condition. It will work when arrives. I have made an honest and fair evaluation of this item, but am only human. No warranty beyond that. I do miss things occasionally, and ...(January 7th, 2024)
• Mitsubishi Fx3sa-20mr-cm Fx3sa20mrcm Used Tested Cleaned (43.8% similar) Packaging and handling, items are safely eds packaged in custom shipping cartons for protection. All products are guaranteed to be working but may show signs of use. Sells new and surplus product develops channels to purchase such. Call to use a shipping service other than the ones listed...(February 7th, 2024)
• Mitsubishi Fx2n-16mr Melsec Programmable Controller 85-264vac 50 60hz Used (35.7% similar) This specifically applies to items marked as: new, new open box and used these are covered by our 30 day warranty. Items marked as: for parts or repair /or as is are not covered by the 30 day warranty. Mitsubishi electric corp. Used - unit not tested. India Pakistan. 85-264VAC 50/60HZ 30VA...(August 12th, 2024)
• Mitsubishi F-20mr-u F20mru Used Tested Cleaned (46.5% similar) Call to use a shipping service other than the ones listed. Mitsubishi F-20MR-U / F20MRU used tested cleaned plc W/20 i/o 12POINT 24VDC-IN 8POINT relay-out. Packaging and handling: items are safely eds packaged in custom shipping cartons for protection. Sells new and surplus product develops channels...(August 13th, 2024)