| # |
Part No. |
Description |
Qty |
| 1 |
208-27-00243 |
FINAL DRIVE ASS'Y |
1 |
| 1 |
208-27-00242 |
FINAL DRIVE ASS'Y |
1 |
| 1 |
208-27-00241 |
FINAL DRIVE ASS'Y |
1 |
| 1 |
208-27-00240 |
FINAL DRIVE ASS'Y |
1 |
| 1 |
(706-8J-01012) |
MOTOR ASS'Y |
1 |
| 1 |
(706-8J-01011) |
MOTOR ASS'Y |
1 |
| 2 |
208-27-00210 |
FLOATING SEAL ASS'Y |
1 |
| 2 |
---- |
Ring |
2 |
| 3 |
---- |
O-ring |
2 |
| 4 |
208-27-71151 |
Gear |
1 |
| 4 |
208-27-71150 |
Gear |
1 |
| 5 |
208-27-71210 |
Bearing |
2 |
| 6 |
208-27-71310 |
COLLAR |
1 |
| 7 |
208-27-71270 |
Lock |
1 |
| 8 |
208-27-71260 |
Lock |
1 |
| 9 |
01010-81020 |
BOLT,(FOR MONO LEVER STEERING) |
2 |
| 10 |
208-27-71170 |
Carrier |
1 |
| 11 |
208-27-71140 |
Gear |
4 |
| 12 |
208-27-71230 |
Bearing |
4 |
| 13 |
21M-27-11260 |
THRUST WASHER |
8 |
| 14 |
208-27-71250 |
Pin |
4 |
| 15 |
20Y-27-21290 |
Pin |
4 |
| 16 |
207-27-52270 |
Spacer |
1 |
| 17 |
208-27-71130 |
Gear |
1 |
| 18 |
208-27-71290 |
Spacer |
1 |
| 19 |
208-27-71160 |
Carrier |
1 |
| 20 |
208-27-71120 |
Gear |
3 |
| 21 |
208-27-71220 |
Bearing |
3 |
| 22 |
20Y-27-21250 |
WASHER,THRUST |
6 |
| 23 |
21M-27-11240 |
Pin |
3 |
| 24 |
20Y-27-21280 |
Pin |
3 |
| 25 |
208-27-71112 |
Shaft |
1 |
| 26 |
20Y-27-11250 |
Spacer |
1 |
| 27 |
04260-01905 |
Ball |
1 |
| 28 |
208-27-71183 |
Cover |
1 |
| 28 |
208-27-71182 |
Cover |
1 |
| 28 |
208-27-71181 |
Cover |
1 |
| 29 |
01010-81235 |
BOLT, MOUNT GROUND DRIVEN STEERING PUMP |
16 |
| 30 |
01643-31232 |
WASHER,(NOT USED WITH EMERGENCY STR.) |
16 |
| 31 |
07049-01215 |
PLUG,(FOR ROPS SWEEP) (WITHOUT CAB) |
2 |
| 32 |
20Y-27-31190 |
Plug |
3 |
| 33 |
07002-12434 |
O-RING,(FOR 2-ACTUATER ATTACHMENT) |
3 |
| 34 |
208-27-61210 |
SPROCKET |
1 |
| 35 |
207-27-51311 |
Bolt |
26 |
Komatsu 208-27-00240 Complete Final Drive Assembly
Integrated Travel Motor + Two-Stage Planetary Reduction Gearbox | BELPARTS Heavy Excavator Undercarriage Spare Parts
1. Basic Information
- Part Name: Full Final Drive Assembly (Hydraulic Travel Motor + Planetary Reducer Integrated Track Drive Device)
- Main OEM Part Number: 208-27-00240
- Cross Interchange Part Numbers:
208-27-00241 (Left Final Drive), 208-27-00242 (Right Final Drive), 208-27-00312
Matching internal travel motor head: 706-8J-01012, 706-8J-01030, 706-8J-01411, 706-8J-01421
- Compatible Excavator Models:
Komatsu PC400-7, PC400LC-7
Komatsu PC450-7, PC450LC-7
Also fits PC400-7EO, PC400LC-7EO, PC450-7EO, PC450LC-7EO, PC300-7
- Available Quality Options:
✅ Genuine Original Factory New
✅ Professionally Fully Rebuilt (All wear components replaced + bench calibrated)
✅ High Precision Premium Aftermarket New
- Warranty Policy: 12 months for Genuine & Rebuilt units; 6–12 months for aftermarket assemblies
- Approximate Net Weight: 1750 kg
- Stock Status: In stock, shipped out within 3–7 working days after order confirmation
2. Key Features
- Manufactured strictly to Komatsu OEM drawings, perfectly matched to original hydraulic system of PC400/PC450-7 series excavators
- Built-in two-speed switching valve: high speed for site relocation, low-speed high-torque mode for climbing slopes, muddy terrain and heavy mining digging
- Integrated spring-applied hydraulic-release multi-disc parking brake plus counterbalance valve, preventing track sliding on inclines and suppressing hydraulic shock during forward/reverse direction switching
- Double planetary reduction structure outputs large driving torque, strong overload resistance, stable performance for long-cycle mining, quarrying and bulk earthmoving harsh working conditions
- Direct bolt-on replacement, identical mounting hole pattern, oil port layout and sprocket hub spline interface; no cutting, welding or machining modification required during field repair
- Forged alloy steel planetary gears with quenching & tempering heat treatment for outstanding wear resistance; thick cast iron housing equipped with heavy-duty floating seal assembly to prevent mud, water and dust intrusion
- Every finished assembly passes full hydraulic pressure testing, internal leakage inspection, brake function test, two-speed shift verification and running-in endurance test before delivery; ISO9001 & CE certified
3. Technical Specifications
- Assembly Type: Complete Final Drive (Travel Motor + Two-Stage Planetary Reducer)
- Motor Type: Variable Displacement Axial Piston Travel Motor
- Max System Relief Pressure: 37.3 MPa (373 bar)
- Travel Mode: Switchable high/low two-speed travel
- Brake Structure: Spring-applied static parking brake, hydraulic release
- Reduction Form: Two-stage planetary gear reduction
- Part Note: 208-27-00240 is the supersession general part number covering both left 208-27-00241 and right 208-27-00242 final drives
- Output Interface: OEM standard spline matched to sprocket hub
4. Compatibility & Cross Reference List
Direct Fit Models
PC400-7, PC400LC-7, PC450-7, PC450LC-7
Interchangeable Final Drive Part Numbers
208-27-00240, 208-27-00241, 208-27-00242, 208-27-00312
Matching Internal Motor Head Part Numbers
706-8J-01012, 706-8J-01030, 706-8J-01411, 706-8J-01421
Extended Compatible Models
PC300-7, PC400-7EO, PC400LC-7EO, PC450-7EO, PC450LC-7EO, PC400-8, PC400LC-8, PC450-8, PC450LC-8
5. BELPARTS Competitive Advantages
- Over 13 years specialized in final drives and travel motors for 30–50 ton Komatsu heavy mining excavators
- Three quality grades to satisfy different budget and severe working environment demands
- Rigorous incoming & outgoing QC inspection system to guarantee long-term stable service life
- Sufficient inventory stored in Guangzhou warehouse, flexible sea freight & air freight global shipping solutions
- Professional engineering team supplies on-site installation guidance, fault troubleshooting and long-term technical after-sales support
- Integrated one-piece assembly for direct replacement, greatly shortening machine downtime and maintenance cycle
6. FAQ
Q1: What is the relationship between 208-27-00240, 208-27-00241 and 208-27-00242?
A: 208-27-00240 is the general supersession part number for this final drive model; 208-27-00241 stands for left side final drive, 208-27-00242 stands for right side final drive. Left and right units cannot be installed reversely.
Q2: Can I only replace the motor head instead of the whole final drive?
A: Yes. If the planetary reduction gearbox is intact without gear damage or oil leakage, you can replace only the faulty motor head (706-8J series part numbers) to lower maintenance costs.
Q3: What is the difference between Rebuilt and Genuine New final drive?
A: Rebuilt final drive replaces all worn internal consumable parts (piston, valve plate, planetary gears, friction plates, oil seals), fully bench tested to OEM performance standard with cost advantages. Genuine New is original factory brand-new assembly fully compliant with Komatsu factory specifications.
Q4: What is your delivery lead time?
A: Goods are in ready stock, dispatched within 3–7 working days after order confirmation, worldwide sea and air shipping options available.