• 211-7895 2117895 Belt Tensioner Excavator Engine Parts Fitting For 345C 345C L 345C MH

• Specification

• Function

1.Maintaining Constant Tension: The tensioner uses a spring-loaded arm and pulley to apply a consistent force to the belt, compensating for natural stretching and wear that occurs over time. This ensures the belt remains tight enough to prevent slipping, yet not so tight as to cause excessive stress on pulleys and bearings.

2.Ensuring Drive Efficiency: By keeping the belt properly tensioned, it enables the efficient transfer of power from the engine’s crankshaft to essential accessories like the alternator, water pump, air conditioning compressor, and power steering pump. Slipping belts can lead to reduced charging, overheating, or loss of power steering assist.

3.Noise and Vibration Reduction: The tensioner helps dampen belt vibrations and harmonic fluctuations, minimizing noise and reducing wear on the belt and related components. This contributes to smoother operation and longer component life.

• Applicable models

• More belt parts supplied to C A T machine

• Catalog parts list

• Other hot selling parts

1.Final drive: Travel gearbox, Travel gearbox with motor, Carrier ass'y, Sun gear shaft

2.Swing gear: Center joint ass'y, Swing gearbox, Swing motor, Gear reduction ass'y

3.Undercarriage Parts: Track roller, Track link ass'y, Idler roller, Sprocket, Spring ass'y

4.Hydraulic parts: Hydraulic pump, Main Valve, Hydraulic cylinder

5. Engine parts: Engine Ass’y, Crankshaft, Turbocharger, Fuel injector, Flywheel, Starter motor, Cooling fan, Solenoid valve

6.Electrical parts: Wiring harness, Controller, Monitor

7.Other: Cylinder Seal Kits, Fuel tank, Filter, Boom, Arm, Bucket etc.

• 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 6-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 .