Mitsubishi MX55 Final Drive Travel Motor Fot Mini Excavator Construction Engineer Machinery Parts

Mitsubishi MX55 Final Drive Travel Motor | 2-Speed Gearbox (Dual 9-Hole 230mm)

Heavy 230mm Sprocket Fitment & Dual 9-Bolt M14 Pattern for 5.0–5.5T Mitsubishi Earthmovers. OEM-spec replacement dual-displacement hydraulic travel motor complete with integrated planetary reduction gearbox, engineered specifically for Mitsubishi MX55 and MM55SR mini excavators.

1. Technical Operating Specifications

(Authority verified via Mitsubishi EPC parts cross-reference & compact hydraulic databases)

2. Verified Undercarriage Fitment Dimensions

(Precision measurements verified for Mitsubishi 5-ton reinforced track frames)

3. Resolving Mitsubishi MX55 Track Deviation & Planetary Pinion Wear

Is your 5-ton Mitsubishi excavator lagging behind during heavy trench push, or drifting off-line when tramming on slopes? The Mitsubishi MX55 platform transmits continuous tractive rim pull through its 230 mm drive sprocket interface. Operating across rocky soil subjects the dual 9-hole M14 mounting pattern to intense cyclic reversing forces. Over high operating hours, internal bearing end-play loosens, allowing planetary gears to mesh out of alignment and causing metallic gear chatter. Concurrently, internal pressure bleed across the rotary cylinder barrel drops low-gear torque, leaving the track stalled in heavy clay. Installing our precision-machined MX55 final drive ensures 100% concentric 180 mm / 230 mm alignment, solid M14 clamping security, and full hydraulic climbing power.

4. Frequently Asked Questions (Technical & Commercial)

For Machine Owners & Operators (C-End Insights)

Q: Will this final drive bolt directly onto my Mitsubishi MX55 without altering the drive sprocket? A: Yes. It matches OEM factory specifications directly. The 180 mm chassis register (9xM14) and 230 mm sprocket pilot (9xM14) align seamlessly with your existing factory Mitsubishi undercarriage.

Q: What is the mandatory startup lubrication protocol before running this replacement drive? A: Pre-fill the hydraulic motor casing with fresh ISO VG 46 fluid through the upper casing drain plug. Separately, fill the planetary reduction gearbox with SAE 80W-90 extreme-pressure gear lubricant up to the horizontal oil level check plug before starting the engine.

For Equipment Dealers & Repair Facilities (B-End Insights)

Q: Does holding this unit in stock cover other Mitsubishi 5-ton machines like the MM55SR? A: Yes. This assembly shares identical 230 mm sprocket registers, 180 mm frame registers, and dual 9-hole M14 fastener patterns across Mitsubishi MX55, MX55A, MM55SR, and MM57SR models, enabling single-SKU inventory consolidation.

Q: What is the export packaging standard for overseas freight? A: Each drive unit is internally treated with rust-inhibiting transit fluid, sealed inside heavy-gauge vapor corrosion inhibitor (VCI) poly barrier wrap, and bolted securely inside an ISPM-15 certified fumigated export wooden crate built for container and air cargo handling.