• 8T-4240 8T4240 Retaining Ring Excavator Spare Parts Fit For C7.1 311C 312C 313D 314C

• Specification

• Functions

1.Auxiliary Drive Shafts: Secures the hydraulic pump or alternator drive pulley to the engine’s front cover shaft. Prevents the pulley from slipping axially, which would break drive belts or damage the pump seal.

2.Timing Gear Train: Locks the crankshaft timing gear or idler gear in place on their respective shafts. Maintains precise gear meshing (critical for valve timing and fuel injection synchronization). A failed ring here could cause gear misalignment, leading to bent valves or piston damage.

3.Camshaft/Balance Shaft Bearings: Retains the outer race of roller bearings on the camshaft or balance shaft. Prevents bearing “walk” (axial movement) that would wear the bearing housing and reduce oil pressure.

• Compatible models

• More other ring parts fit for C A T 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 .