High-Quality Travel Motor Assembly for CAT E305.5 PC45 E306 | OEM 3G-2720 Replacement | Solve Hydraulic Failure & Reduce Downtime

Your Premier Source for Komatsu PC45 Final Drive and Caterpillar E305.5 Travel Motor Solutions

Expert Solutions for Heavy Equipment Downtime Reduction

We provide robust, high-performance Walking Motor Assembly (Travel Motor Assembly) replacements specifically engineered for popular compact excavators including the CAT E305.5Komatsu PC45, and E306 (9x9). Our focus is on delivering a Chinese High-Quality Alternative to the OEM part, ensuring reliability at a fraction of the cost. The part number, 3G-2720 (3G2720), is guaranteed to offer seamless integration and restored track power, directly addressing issues like abnormal oil leakage and slow travel speed.

Five Key Product Features:

  • Precision Engineering: Manufactured to strict OEM standards to ensure optimal hydraulic system efficiency in models like the E305.5.

  • Use for excavator or construction machinery: Designed for continuous, heavy-duty operation in excavators such as the Komatsu PC50.

  • Dual Part Number Support: Available under both 3G-2720 and 3G2720 for simple ordering and inventory management.

  • Enhanced Torque Output: Specifically tuned for the E306 (9x9) to provide maximum travel torque and smooth operation.

  • Guaranteed Fitment: Ensures a perfect fit and function for the final drive system of the PC45.

Source Manufacturer: Custom Engine Part Development

As a leading source manufacturer and factory direct sales partner, we support custom development for various engine components. We specialize in cylinder liner kits, ensuring you get bespoke quality for both new and legacy machinery. We are fully committed to Foreign Trade Export, providing stable supply chains globally.

Caterpillar 3116 Liner Kit Development
Komatsu 6D102 Cylinder Liner Sourcing
Isuzu 4BG1 Piston Liner Customization
Cummins B5.9-C Cylinder Liner Manufacturing

Detailed Product Specifications

AttributeDetail
Product NameWalking Motor Assembly / Travel Motor Assembly
Part Number (OEM Ref)3G-27203G2720
Model NO.E305.5, E306 (9x9), PC45, PC50
ApplicationExcavator, Compact Hydraulic Machinery
ConditionNew Aftermarket Replacement
CertificationISO 9001 Compliant Quality
TrademarkHonour Time Machinery Limited (HTM)
OriginChina
Production Capacity5000PCS/Year
Transport PackageSecured Carton/Wooden Case
Payment TermsT/T, Western Union, MoneyGram
Delivery MethodsExpress: DHL, FedEx, EMS, UPS or by Air/Sea Freight

Comprehensive Engine Parts Supplier for Global Machinery

Honour Time Machinery Limited is your trusted partner for engine assemblies and spare parts for all major heavy-duty equipment brands. We carry essential components designed to help you solve engine issues, including fixing the dreaded Cummins QSB6.7 oil consumption fix and improving overall engine health. Our Heavy-duty equipment gasket kit supplier services cover a wide range of needs.

Core Engine Components in Stock:

Liner Kit (Cylinder Liners)
Piston (High-quality diesel engine piston supplier)
Piston Ring (Excavator engine piston ring installation guide)
Gasket Kit
Gasket Head
Crankshaft
Valve Guide
Nozzle (Isuzu 4HK1 injector nozzle calibration)
Bearing (Komatsu 6D102 main bearing set price)
Pressure Switch troubleshooting
Flameout Solenoid (Flameout solenoid valve testing procedure)
Monitor

Supported Engine Models (Example Focus):

BrandModels (Partial List)
Komatsu3D82, 4D105, 6D108, 4D84, 6D102, 6D114, 3D84, 6D95, 6D110, 4D95, 6D105, 6D170
CATERPILLAR3114, C4, 3064T, C7, C13, 3116, C6, S6K, C-9
ISUZU3LD1, 4BG1, 6SD1, 4LE2, 6WF1, 4LE1, 4HK1, 6WG1, 4JB1, 6BG1, 6HK1
Yanmar4D88E, 4TNV88, 4TNE88, 4TNV98, 4TNE84, 4TNV94L, 4TNE94, Yanmar 4TNV98 water pump replacement cost, 4TNV106
CUMMINSQSB6.7, B5.9-C, QSM11, QSM11-C, B3.9-C, C8.3-C
KOBELCOJ05E, 6D16, 6D22T, 6D16T, 6D34, 6D34T, J08E, 6D24T, J05E, J08E
Mitsubishi4D34, K4M, 6D16, S4KT, 4D24, S3Q2, 6D24, 6D40
HINOJ05E, V25C, P11C, H06CT, J08E, EF750, V21C, H07D
VOLVOD6D, D9E, D7D, D12E, D6E, D12D, D7E, D16D

Need parts for your Kubota V2203 engine overhaul kit review or looking for a reliable Construction machinery engine parts online shop? We are ready to ship your components, from engine belt tensioner adjustment kits to specialized Cylinder block machining process parts. We also cover needs like Radiator core replacement construction equipment and Main valve assembly repair heavy machinery.

Inquire Now

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Technical Insight: Failure & Prevention

Failure Scenario: Solving Excessive Oil Consumption

A common and costly issue in heavy machinery, particularly with engines like the CUMMINS QSB6.7, is excessive engine oil consumption.
Failure Cause: Often traced back to worn or broken Piston Ring sets or deteriorated valve stem seals. This allows oil to bypass the piston and burn in the combustion chamber.
Solution: Immediate replacement of the entire Liner Kit (piston, piston rings, and cylinder liner) using our precision-engineered, high-quality alternatives, coupled with inspecting the valve guide and valve seat area for damage. Our parts are designed for exceptional sealing, directly enabling the Cummins QSB6.7 oil consumption fix.

Proactive Equipment Maintenance Scheme:

To prevent premature component failure and costly downtime, we recommend a 500-hour fluid and filter inspection cycle. This includes checking the tension and condition of the Engine Belt Tensioner Adjustment system, monitoring hydraulic fluid cleanliness to protect the Main Valve Assembly Repair Heavy Machinery components, and performing a detailed analysis of engine oil for signs of abnormal wear on Caterpillar 3116 Connecting Rod Bearing Failure precursors. Regular maintenance significantly extends the life of your Accelerator Motor Position Sensor Location and all critical systems.

Heavy Equipment Component Glossary

  • Valve Guide: A sleeve pressed into the Cylinder Head that guides the valve stem. Komatsu 6D102 Valve Guide is critical for maintaining valve sealing.

  • Crankshaft: The central rotating component that converts the linear motion of the pistons into rotational motion. Located in the Engine Block. Caterpillar 3116 Crankshaft performance is vital.

  • Flameout Solenoid: An electrical switch that controls the fuel supply to stop the diesel engine. Located on the Diesel Pump. Cummins QSB6.7 Flameout Solenoid ensures safe engine shutdown.

  • Engine Bearing (Main Bearing): Supports the rotating crankshaft within the Engine Block. Isuzu 4BG1 Engine Bearing longevity is essential.

  • Valve Seat: The surface in the Cylinder Head that the valve closes against to seal the combustion chamber. Yanmar 4TNV98 Valve Seat integrity prevents compression loss.

  • Accelerator Motor: An electronic actuator that controls the engine throttle position. Located near the Fuel Pump or Throttle Body. Weichai WP10 Accelerator Motor regulates speed.

  • Main Valve: The primary control component in the Hydraulic Pump or Control Valve Assembly. It directs oil flow to actuators. CAT E305.5 Main Valve controls travel and work functions.

  • Piston: The cylindrical component that moves up and down in the cylinder, transferring force from the expanding gas. Located in the Cylinder Liner. Kubota V2203 Piston is a core component.

  • Radiator: Heat exchanger that cools the engine coolant. Located at the front of the machine. Komatsu PC45 Radiator maintains operating temperature.

  • Transmitter: Generally refers to a sensor that transmits signals, such as pressure or temperature. Located in hydraulic lines or engine block. Isuzu 4HK1 Transmitter provides critical system data.

Honour Time Machinery Limited is a global supplier specializing in diesel engine assemblies and components for cumminskomatsuCaterpillarisuzukubotayanmar, and weichai. We are dedicated to providing source factory quality and exceptional export services to meet your heavy equipment part needs.

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