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Komatsu PC300-7 207-27-71140 708-8H-00320 Excavator Travel Gearbox Hydraulic Drive Unit

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Komatsu PC300-7 207-27-71140 708-8H-00320 Excavator Travel Gearbox Hydraulic Drive Unit

Name: Komatsu PC3007 2072771140 7088H00320 Excavator Travel Gearbox Hydraulic Drive Unit
Brand: Belparts
Price: 1 USD

Quality Komatsu PC300-7 207-27-71140 708-8H-00320 Excavator Travel Gearbox Hydraulic Drive Unit for sale

Brand Name : Belparts

Model Number : PC300-7

Place of Origin : Made in China

MOQ : 1 piece

Price : Negotiable price

Payment Terms : T/T, Paypal and Trade Assurance

Supply Ability : 1000pieces

Delivery Time : 1-7 days

Packaging Details : Wooden packing

Model : PC300-7

Part Number : 207-27-71140 708-8H-00320

Part name : travel Reduction Gearbox

Application : Excavator

Name : komatsu travel gearbox

Brand : Belparts

Condition : New

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Komatsu PC300-7 207-27-71140 708-8H-00320 Excavator Travel Gearbox Hydraulic Drive Unit

The travel gearbox is a critical component in an excavator’s undercarriage system, responsible for transmitting power from the hydraulic motor to the tracks or wheels, enabling precise movement and heavy-duty operation. Its reliability directly impacts the machine’s productivity in mining, construction, and earthmoving applications.

Appliion	Excavator
Part name	Belparts travel gearbox
Material	Steel
Model	PC300-7
Part number	207-27-71140 708-8H-00320
Payment term	T/T, Paypal, Trade assurance, or as required
Delivery	3 days after the payment received
Shipment	by sea, by air, by express, or as required

List of spare parts

#	Part No	Part Name	Qty.
1	(708-8H-00320)	MOTOR ASS'Y	2
2	170-27-00025	FLOATING SEAL ASS'Y	2
2		Ring	2
3		O-ring	2
4	207-27-71311	Hub	2
5	207-27-71330	Bearing	4
6	207-27-52350	O-ring	2
7	207-27-71370	Lock	2
8	207-27-71360	LOCK NUT	2
9	01010-81020	BOLT,(FOR MONO LEVER STEERING)	4
10	207-27-71320	Carrier	2
11	207-27-71140	Gear	8
12	207-27-63210	BEARING,2P	8
13	20Y-27-21250	WASHER,THRUST	16
14	207-27-63230	Pin	8
15	20Y-26-21330	Pin	8
16	20Y-27-13310	WASHER,THRUST	2
17	207-27-71130	Gear	2
18	207-27-71151	Gear	2
19	207-27-71250	Washer	2
20	207-27-71161	Carrier	2
21	207-27-71121	GEAR,1P	6
22	207-27-61220	BEARING,1P	6
23	20Y-27-21240	WASHER,THRUST	12
24	207-27-61240	Pin	6
25	20Y-27-21280	Pin	6
26	207-27-71352	Shaft	2
27	20Y-27-11250	Spacer	2
28	20Y-27-22250	BUTTON	2
29	207-27-71340	Cover	2
30	01011-61880	Bolt	40
31	01643-31845	WASHER,(WITHOUT R.O.P.S.)	40
32	07049-01215	PLUG,(FOR ROPS SWEEP) (WITHOUT CAB)	4
33	07044-12412	PLUG,MAGNETIC	6
34	07002-02434	O-RING,DRAIN PLUG? R.H. HALF TANK	6
35	207-27-61210	SPROCKET	2
36	207-27-51311	Bolt	40
37	01010-82075	CAPSCREW	42
38	01643-32060	FLAT WASHER - M20 (HARDENED)	42
39	207-30-71240	Cover	2
40	01010-81640	BOLT,(FOR SLAG HANDLING) (FOR USA)	12
41	01643-31645	WASHER,(FOR TRAVEL MOTOR) (NOT SHOW)	12

High-quality excavator travel gearboxes use high-strength alloy steel forged gears. After carburizing and quenching treatment, the surface hardness can reach HRC58-62, which has high wear resistance and impact resistance and can withstand long-term heavy-load operation. The internal lubricating oil circuit adopts a forced lubrication design to ensure that gears and bearings are fully lubricated during high-speed operation, reducing friction loss. At the same time, the gearbox shell is made of die-cast aluminum alloy or cast iron, which has both light weight and deformation resistance, adapting to the harsh outdoor construction environment. During maintenance, it is necessary to regularly check the oil level and oil quality to avoid gear sintering caused by oil shortage or oil contamination. The seals need to be replaced every 2000 hours to prevent leakage failures.