Komatsu 706-8J-01012 Travel Motor Head for PC300-7 PC400-7 PC450-7 PC550LC-8 Excavators 98kg
| No. | Part number | Qty | Spare Part name |
|---|---|---|---|
| 0 | 208-27-00312 | [2] | Final Drive Assembly Komatsu |
| 0 | 208-27-00311 | [2] | Final Drive Assembly Komatsu |
| 0 | 208-27-00243 | [2] | Final Drive Assembly Komatsu |
| 0 | 706-8J-01030 | [1] | Motor Assembly Komatsu OEM |
| 0 | 706-8J-01012 | [1] | Motor Assembly Komatsu OEM |
| 1 | 706-8J-41110 | [1] | Case, Motor Komatsu |
| — | 706-8J-00013 | [1] | Cover Subassembly Komatsu |
| 8 | 706-86-71310 | [1] | Pin, Dowel Komatsu |
| 9 | 706-8E-14191 | [5] | Plug Komatsu China |
| 10 | 07002-11823 | [5] | O-ring Komatsu |
| 11 | 706-8J-71550 | [2] | Piston Komatsu China |
| 12 | 706-8J-71560 | [1] | Pin Komatsu China |
| 13 | 706-8J-71130 | [2] | Plug Komatsu China |
| 14 | 07002-12434 | [2] | O-ring Komatsu China |
| 15 | 706-8J-71140 | [2] | Plug Komatsu China |
| 17 | 20B-27-11210 | [1] | Bleeder Komatsu |
| 18 | 706-75-74540 | [2] | Valve Komatsu |
| 19 | 706-75-74550 | [2] | Spring Komatsu |
| 20 | 706-75-74850 | [2] | Plug Komatsu China |
| 21 | 07002-13334 | [2] | O-ring Komatsu China |
| 22 | 708-8F-36120 | [2] | Ring Komatsu |
| 23 | 706-78-71280 | [2] | Spring Komatsu China |
| 24 | 706-78-71230 | [2] | Plug Komatsu China |
| 25 | 07002-13634 | [2] | O-ring Komatsu China |
| 26 | 706-8E-14170 | [1] | Spring Komatsu |
| 27 | 706-8J-71150 | [1] | Spool Komatsu |
| 28 | 706-8J-71160 | [1] | Plug Komatsu |
| 30 | 706-86-53410 | [2] | Valve Komatsu China |
| 31 | 706-8J-71170 | [2] | Plug Komatsu China |
| 32 | 07002-11023 | [2] | O-ring Komatsu China |
| 33 | 708-8E-16180 | [1] | Valve Komatsu |
| 34 | 706-8J-71181 | [1] | Valve Komatsu China |
| 35 | 708-8E-16160 | [1] | Plug Komatsu |
| 37 | 706-8J-71190 | [1] | Plug Komatsu China |
| 38 | 07002-11223 | [1] | O-ring Komatsu China |
| 39 | 07000-15275 | [1] | O-ring Komatsu |
| 40 | 07000-12012 | [1] | O-ring Komatsu China |
| 41 | 01252-62060 | [8] | Bolt, Hexagon Socket Head Komatsu China |
Hydraulic Track Drive Motor | BELPARTS Heavy Excavator Undercarriage Spare Parts
- Product Definition: Independent travel hydraulic motor head only (without planetary reduction gearbox), used for overhaul replacement, reuse intact original gearbox to cut maintenance cost
- Main OEM Part Number: 706-8J-01012
- Full Cross Interchange Part Numbers:
706-8J-01011, 706-8J-01020, 706-8J-01030, 706-8J-01411, 706-8J-01421
- Compatible 30~55 Ton Heavy Excavator Models:
Komatsu PC300-7
Komatsu PC400-7, PC400-7E0, PC400LC-8, PC400-8
Komatsu PC450-7, PC450-7E0, PC450-8
Komatsu PC550LC-8
Also universal fit for PC490-10, PC490LC-10
- Available Quality Options:
✅ Genuine Original Factory New
✅ Professionally Fully Rebuilt (All wear parts replaced + bench calibrated)
✅ High Precision Premium Aftermarket New
- Warranty Policy: 12 months for Genuine & Rebuilt motors; 6–12 months for aftermarket units
- Approx. Net Weight: 98 kg
- Stock Status: In stock, shipped out within 3–7 working days after order confirmation
- Manufactured strictly per Komatsu OEM drawing, perfectly matched hydraulic system configuration of PC300/PC400/PC450/PC550 series heavy excavators
- Built-in two-speed shift valve: high-speed mode for site relocation, low-speed high-torque mode for climbing, muddy terrain and heavy mining digging
- Integrated spring-applied hydraulic-release multi-disc parking brake + built-in counterbalance valve, prevents track slipping on slopes and eliminates hydraulic impact during forward/reverse switching
- Direct bolt-on replacement: identical mounting hole layout, oil port position and input spline size, no cutting, welding or machining modification required during field installation
- Hardened piston, cylinder block and valve plate internal components, high-pressure resistant housing and upgraded sealing structure, anti-leakage performance for long-cycle mining & bulk earthworking harsh conditions
- Every finished unit passes strict bench test: pressure calibration, internal leakage inspection, brake function verification and two-speed shifting test before delivery; ISO9001 & CE certified
- Type: Variable Displacement Axial Piston Travel Motor (Motor Head Only, Excluding Reducer)
- Max System Relief Pressure: 37.3 MPa (373 bar)
- Working Mode: Switchable high/low two-speed travel
- Brake Type: Spring-applied static parking brake, hydraulic release
- Connection Interface: Input spline matches original two-stage planetary reduction gearbox
- Rotation Direction: Standard OEM direction matching machine chassis requirement
PC300-7, PC400-7, PC400-7E0, PC400LC-8, PC400-8, PC450-7, PC450-7E0, PC450-8, PC550LC-8
706-8J-01012, 706-8J-01011, 706-8J-01020, 706-8J-01030, 706-8J-01411, 706-8J-01421
PC490-10, PC490LC-10
- Over 13 years specialized in travel motors & final drives for 30–55 ton Komatsu heavy mining excavators
- Three quality grades to satisfy different budget and working condition demands
- Rigorous incoming & outgoing QC inspection system to guarantee stable long-term performance
- Sufficient inventory stored in Guangzhou warehouse, flexible sea freight & air freight global shipping solutions
- Professional technical team supplies installation guidance, fault troubleshooting and long-term after-sales support
- Cost-saving maintenance solution compared with purchasing complete expensive full final drive assembly
A: Yes, they are superseded upgraded OEM part numbers for identical travel motor unit, fully interchangeable replacement for all listed excavator models.
A: This product is only travel motor head (without reduction gearbox); complete final drive integrates motor + planetary reducer together. It is used to repair the existing undamaged gearbox assembly to save repair cost.
A: Rebuilt motor replaces all worn internal consumable parts (piston, valve plate, friction plates, oil seals), bench-tested to OEM performance standard with competitive price; Genuine New is original factory brand-new assembly complying with full factory specification.
A: Goods are ready in stock, dispatched within 3–7 working days after order confirmation, global sea & air shipping options available.
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