207-70-33181 2077033181 O-Ring Excavator Spare Parts For KOMATSU PC300 PC350

• 207-70-33181 2077033181 O-Ring Excavator Spare Parts For KOMATSU PC300 PC350

• Specification

• Function 

1. Sealing and Contamination Prevention
Positioned within mating grooves of track links, pins, or other critical joints, the O-ring forms a tight seal when compressed between surfaces. This seal prevents external contaminants from entering the moving parts, which could otherwise cause accelerated wear, corrosion, or damage to the track components. In muddy, wet, or dusty environments, the O-ring acts as a protective shield, ensuring the integrity of the internal lubrication system and reducing the risk of premature failure.

2. Lubricant Retention
By maintaining a secure seal, the O-ring helps retain lubricating oil or grease within the joint, ensuring consistent lubrication and reducing friction between moving parts. This is crucial for minimizing wear on pins, bushings, and other high-stress components, especially under heavy loads and continuous operation. Adequate lubrication also helps to dissipate heat generated during movement, further extending the lifespan of the track system.

3. Pressure Compensation and Adaptability
The O-ring's elastic properties allow it to adapt to varying levels of pressure and movement within the joint. As the track articulates over uneven terrain, the O-ring deforms slightly to maintain contact with the mating surfaces, ensuring the seal remains effective under dynamic conditions. This ability to compensate for movement and pressure changes helps to prevent leaks and maintain the performance of the track system over time.

• Compatible models

• More o parts supplied to KOMATSU machine

• Catalog parts list

• We could supply the following spare parts

1 Hydraulic parts: hydraulic pump, main valve, hydraulic cylinder, final drive, travel motor, swing machinery, swing motor etc.

2 Engine parts: engine ass’y, piston, piston ring, cylinder block, cylinder head, crankshaft, turbocharger, fuel injection pump, starting motor and alternator etc.

3 Undercarriage part: Track roller, Carrier roller, Track Link, Track shoe, Sprocket, Idler and Idler cushion etc.

4 Cab parts: operator’s cab, wiring harness, monitor, controller, seat, door etc.

5 Cooling parts: Radiator, air conditioner, compressor, after cooler etc.

6 Other parts: Service kit, swing circle, engine hood, swing joint, fuel tank, filter, boom, arm, bucket etc.

• Advantage

1. Offer Top quality & competitive products

2. Support 12-month warranty

3. 100% tested before shipping

4. Delivery in time

5. A wide range of Oil Pressure Sensor, Fuel Tank Level Sensor, Temperature Sensor, Speed Sensor for excavator 

6. More than 15 years production and 11 years foreign trade experience

7. Professional QC team

8. Best sales team, 24 hours service

• Packing and Shipping

Packing Details :

inner packing : plastic film for wrapping

external packing : wooden

Shipping :

within 3 days after received the payment , by air or by express or by sea on the basis of the

quantity and emergency circumstances.

1. By Couriers: DHL, UPS, FEDEX, TNT are the main courier companies we are cooperated,

2. By Air: Delivery from the Guangzhou air port to customer's destination city air port.

3. By Sea: Delivery from the Huangpu port .

• Product Warranty

1. Warranty Period: 3 Months' warranty from the date of arrival. Longer period of 6 months' warranty could be offered with higher price level.

2. Warranty type: replacement of the parts that have quality problem.

3. Warranty is not valid for below s

* Cutomer give wrong information about the order

* Force Majeure

* Wrong installation and operation

* Rust because of wrong stock & maintenance