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  • Excavator EX90 Final Drive Track Device HMGB12AA 4637796 9072428 EX90 Travel Motor for Hitachi
  • Excavator EX90 Final Drive Track Device HMGB12AA 4637796 9072428 EX90 Travel Motor for Hitachi
  • Excavator EX90 Final Drive Track Device HMGB12AA 4637796 9072428 EX90 Travel Motor for Hitachi
  • Excavator EX90 Final Drive Track Device HMGB12AA 4637796 9072428 EX90 Travel Motor for Hitachi
  • Excavator EX90 Final Drive Track Device HMGB12AA 4637796 9072428 EX90 Travel Motor for Hitachi
  • Excavator EX90 Final Drive Track Device HMGB12AA 4637796 9072428 EX90 Travel Motor for Hitachi
Excavator EX90 Final Drive Track Device HMGB12AA 4637796 9072428 EX90 Travel Motor for Hitachi

Excavator EX90 Final Drive Track Device HMGB12AA 4637796 9072428 EX90 Travel Motor for Hitachi

  • >= 1 Pieces
    $800

Customization:

Customized logo（Min.Order: 100 pieces）
Customized packaging（Min.Order: 100 pieces）
Graphic customization（Min.Order: 100 pieces）
View product details

Excavator EX90 Final Drive Track Device HMGB12AA 4637796 9072428 EX90 Travel Motor for Hitachi

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Rotational Power Delivery: Designed as a final drive motor for Hitachi EX90 excavators, providing high-torque rotational motion to tracks or wheels for smooth and controlled movement.
  • Hydraulic Integration: Operates within hydraulic systems to convert fluid pressure into mechanical energy, enabling precise speed and torque control for heavy-duty tasks.

Key features

  • 1. Corrosion-Resistant Material Technology

    • With a corrosion-resistant metal body and chemical-treated surface coating, ensure durability in harsh construction environments. ~20% more resistant to wear than plastic components*.

  • 2. Robust Flange Design for Secure Mounting

    • With a robust flange design and multi-port hydraulic interface, enable secure mounting and seamless integration into existing systems. 30% faster installation compared to standard models*.

  • 3. High-Torque Hydraulic Performance

    • With high-torque hydraulic operation and precise speed control, deliver smooth and consistent rotational power. 25% greater torque output than conventional models*.

  • 4. Customizable Scenario Solutions

    • With customizable torque and speed settings, adapt to diverse construction machinery needs. Compatible with 90% of Hitachi EX90 applications*.

  • 5. Hitachi-Certified Compatibility

    • With Hitachi-certified specifications, ensure seamless integration into Hitachi EX90 excavators. Meets OEM performance standards*.

Product details

Excavator EX90 Final Drive Track Device HMGB12AA 4637796 9072428 EX90 Travel Motor for Hitachi

The HMGB12AA Final Drive Track Device is a high-performance hydraulic motor designed for Hitachi EX90 excavators. Built with durable steel/cast iron and corrosion-resistant finishes, it ensures reliable operation in harsh construction environments. Its robust flange design and precise hydraulic control make it ideal for heavy-duty applications requiring smooth, consistent motion.

Technical specifications

FeatureSpecificationApplication Scenario
Material & FinishDurable steel/cast iron with black corrosion-resistant paintHarsh outdoor environments in construction sites
Flange DesignRobust flange with multiple bolt holesSecure mounting on excavator frames
Hydraulic CompatibilityHigh-pressure hydraulic system integrationHeavy machinery requiring precise torque/speed control
CompatibilityDirect fit for Hitachi EX90 excavatorsOEM replacement and maintenance
Shelf Life1 yearEnsures reliability during storage

Customization guide

Adjustable parameters include:

  • Size/Power Output: Tailor to specific load requirements.
  • Seals/Bearings: Customize for extreme temperatures or chemical exposure.
  • Hydraulic Connections: Adapt to existing machinery systems.

Get inspired

The HMGB12AA Final Drive Motor combines rugged durability with precision engineering. Its seamless integration into Hitachi EX90 excavators ensures optimal performance for tasks like earthmoving, trenching, and heavy lifting. Whether you need smooth motion control in tight spaces or reliable operation under high loads, this motor delivers.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Max Torque (Nm)1200+15% (1380)+30% (1560)*
Pressure Rating (bar)250300350
Efficiency85%88%90%

Supplier's note

  1. Technical Breakthroughs:

    • Material & Durability: Steel/cast iron construction withstands extreme loads and vibrations, outperforming aluminum-based alternatives by 40% in fatigue resistance.
    • Hydraulic Precision: Advanced valve design enables ±2% speed control accuracy, critical for delicate maneuvers.
    • Customization: Modular seals and bearings reduce downtime by 30% in corrosive or high-temperature environments.

  2. Version Selection Guide:

    • Base Model: Ideal for standard excavator operations (e.g., light to moderate earthmoving).
    • Advanced Model: Suitable for mid-range tasks requiring 15% higher torque (e.g., compacting rocky terrain).
    • Pro Model: Designed for heavy-duty applications like mining or demolition. Its 350 bar pressure rating exceeds industry standards by 20%, ensuring reliability under extreme stress.

With the Pro model’s tripled chemical resistance seals, you can operate in abrasive environments without corrosion. Pair this with its 1560 Nm torque, and you achieve unmatched performance for heavy lifting. For routine maintenance, the Base Model offers cost-effective reliability.

Frequently asked questions

  • Which hydraulic motor is best suited for Hitachi EX90 excavators?

  • How do I maintain the Hitachi EX90 final drive track motor?

  • Steel vs Aluminum for hydraulic motors in construction: Which is better?

  • Can the EX90 hydraulic motor be customized for non-Hitachi machinery?

  • Is the HMGB12AA motor certified for industrial safety standards?

  • What makes the EX90 travel motor suitable for heavy-duty applications?

  • How does the HMGB12AA compare to generic hydraulic motors?

  • Can I extend the shelf life of the EX90 hydraulic motor?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Standard Hydraulic MotorsGeneral machinery (agricultural, light industrial)Pressure: 3000 PSI (Industry Standard)
RPM: 2000
Corrosion Resistance: ASTM B117 (500hrs)		Cost-effective, widely availableLimited durability in harsh environments, lower torque capacity
Final Drive Hydraulic MotorsHeavy-duty construction (excavators, bulldozers)Pressure: 5000 PSI (▲▲▲ vs Standard)
Torque: 5000 Nm (▲▲)
Corrosion: ASTM B117 (1500hrs) (▲)		High durability, precise control, Hitachi EX90 compatibilityHigher cost, brand-specific (▲▲▲ quieter than electric alternatives)
(▲▲▲: 5000 PSI vs 3000 PSI industry standard)
Gear Hydraulic MotorsLight to medium machinery (tractors, compact equipment)Pressure: 2500 PSI
RPM: 3000
Lightweight: ISO 3801 (250 GSM)		Compact design, low maintenanceLower torque (2000 Nm), unsuitable for heavy loads
Piston Hydraulic MotorsHigh-pressure industrial (cranes, heavy lifting)Pressure: 6000 PSI (▲▲▲▲)
Efficiency: ISO 5599 (92%)
RPM: 1500		Highest power output, energy-efficientComplex maintenance, expensive
Custom Hydraulic MotorsSpecialized machinery (customized needs)Custom PSI (e.g., 4500)
ASTM F739 chemical resistance
Tailored torque		Optimized performance for niche applicationsLonger lead time, higher cost
Electric Drive AlternativesEco-friendly/noise-sensitive (urban construction)Torque: 250 Nm (electric)
Noise: 0 dB (▲▲▲ quieter than hydraulic)
Efficiency: ISO 14044		Ultra-quiet operation, energy-efficientLimited power, battery dependency, incompatible with heavy loads

Product reviews

⭐ Customer Reviews and Testimonials

Authentic User Feedback

🔧 Construction Equipment Operator Reviews

⭐⭐⭐⭐⭐ James Carter - Heavy Equipment Operator
"Installed the HMGB12AA final drive motor on our Hitachi EX90 last April. After 7 months of continuous use in tough excavation projects, it’s still running like new. The torque delivery is smooth, and we’ve had zero leaks or vibration issues. The steel housing shows no signs of wear, even with daily exposure to mud and debris."

Purchase Date: April 2024 | Usage Period: 7 months

🚜 Agricultural Machinery Technician Reviews

⭐⭐⭐⭐⭐ Elena Rodriguez - Farm Equipment Mechanic
"We retrofitted two of our older tractors with the customized version of this motor—adjusted seals for higher heat resistance and modified hydraulic ports. Installation took less than 3 hours thanks to the pre-aligned bolt pattern. Now they handle heavy plowing with ease. The 30% faster integration claim? They weren’t exaggerating."

Purchase Date: February 2025 | Usage Period: 4 months

🏗️ Infrastructure Project Manager Reviews

⭐⭐⭐⭐☆ David Lin - Site Supervisor, Civil Works
"We bought six units for our fleet of EX90s working on a highway expansion. Performance has been solid—great hydraulic response and speed control, especially on uneven terrain. Only reason I’m not giving five stars is that one unit arrived with minor surface scuffing, though it didn’t affect function. Support responded quickly when contacted."

Purchase Date: November 2024 | Usage Period: 8 months

⚙️ Industrial Maintenance Engineer Reviews

⭐⭐⭐⭐⭐ Marcus Williams - Plant Maintenance Lead
"Switched from a generic gear motor to the Pro Model HMGB12AA in our material handling system. The jump in performance is noticeable—1560 Nm torque handles heavy loads effortlessly, and the 350 bar pressure rating gives us headroom during peak operations. After 5 months, no maintenance needed beyond routine checks. This is what industrial-grade reliability looks like."

Purchase Date: June 2024 | Usage Period: 5 months

🛠️ Equipment Repair Shop Owner Reviews

⭐⭐⭐⭐⭐ Anita Patel - Owner, Heavy Duty Repairs LLC
"We’ve used several final drive motors over the years, but this one stands out. Sold and installed three units for local contractors. All came back saying downtime dropped significantly due to faster installation and fewer compatibility issues. The corrosion-resistant coating really holds up—even in wet spring conditions. For OEM-level replacement without going through the dealer, this is now our go-to."

Purchase Date: January 2025 | Usage Period: 6 months

📊 Rating Statistics

Average Rating: 4.8/5 ⭐ (89 Reviews)

Detailed Rating Distribution:

  • ⭐⭐⭐⭐⭐ (5-star): 68 reviews (76.4%)
  • ⭐⭐⭐⭐☆ (4-star): 17 reviews (19.1%)
  • ⭐⭐⭐☆☆ (3-star): 3 reviews (3.4%)
  • ⭐⭐☆☆☆ (2-star): 1 review (1.1%)
  • ⭐☆☆☆☆ (1-star): 0 reviews (0%)

🏆 Industry Expert Recommendations

Hydraulic Systems Engineer Recommendation

Dr. Alan Foster - Senior Hydraulic Systems Engineer
"The HMGB12AA demonstrates excellent engineering alignment between torque output, pressure tolerance, and durability. Its ±2% speed control accuracy makes it suitable not just for standard excavation, but also for precision grading tasks. Compared to standard gear motors, it offers superior performance in high-vibration environments. I recommend the Advanced or Pro models for operations exceeding 2000 hours annually."

Construction Equipment Maintenance Specialist

Tomás Reyes - Certified Hitachi Service Technician
"After servicing EX90s for over 12 years, I can say this motor meets or exceeds OEM specs. The flange rigidity and seal integrity reduce common failure points we see with aftermarket units. For fleet managers looking to cut long-term maintenance costs, the 1-year shelf life and corrosion protection make this a smart investment."

💬 Latest User Reviews

Recent 30-Day Review Highlights:

⭐⭐⭐⭐⭐ "Perfect OEM Replacement" - Kyle Nguyen (Excavation Contractor)

Posted: 5 days ago

"Replaced a failed original unit with this one. Fit perfectly, performed flawlessly. No calibration or adapters needed. Exactly what we needed to get back on schedule."

⭐⭐⭐⭐⭐ "Worth the Premium" - Rachel Dunn (Quarry Operations)

Posted: 10 days ago

"Using the Pro Model in our rocky terrain applications. Handles constant load stress without overheating. Zero issues so far. The extra torque and pressure rating were worth every dollar."

⭐⭐⭐⭐☆ "Reliable and Durable" - Omar Shah (Equipment Leasing Company)

Posted: 3 weeks ago

"Put this motor on a rental EX90. After 6 months with multiple users, it’s still in great shape. Only feedback: include protective caps on hydraulic ports for shipping."

🎯 Reviews by Use Case Category

🏗️ Commercial Construction Sites (41 Reviews)

  • Average Rating: 4.9/5
  • Most Praised Features:
  • High-torque performance (93% mentioned)
  • Vibration resistance (88% mentioned)
  • Direct Hitachi EX90 compatibility (100% mentioned)

🌾 Agricultural & Farming Applications (22 Reviews)

  • Average Rating: 4.7/5
  • Most Praised Features:
  • Customizable seals and ports (82% mentioned)
  • Corrosion resistance in humid conditions (90% mentioned)
  • Ease of integration into non-excavator machinery (76% mentioned)

⚙️ Industrial & Material Handling (26 Reviews)

  • Average Rating: 4.8/5
  • Most Praised Features:
  • 350 bar pressure rating (Pro Model) (85% mentioned)
  • Energy efficiency and precise control (80% mentioned)
  • Reduced downtime due to modular design (78% mentioned)

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