Product Overview
The Caterpillar 317-8766 main bearing is the core transmission component of the engine, manufactured strictly according to the original factory standards, specifically designed for CAT C series, D series and other engines (such as C15, C18). Its high-precision structure ensures a perfect fit between the crankshaft and bearing seat, bearing extreme loads and high temperature environments, making it suitable for high-intensity applications such as mining, ships, and power generation.
Core strengths
Original Quality Performance
Using high-quality alloy steel substrate and polymer coating, after heat treatment and surface phosphating process, the wear resistance is improved by 40%, and the fatigue strength reaches the original factory standard. Internal oil passage design optimizes lubrication efficiency, reduces cold start wear, and extends overhaul cycles.
Accurate compatibility and adaptability
Strictly follow the dimensional tolerances of CAT 317-8766 model, perfectly match the Caterpillar engine crankshaft and bearing seat (such as 3406E, C15 and other models), installation does not require adjustment, avoiding vibration or abnormal noise caused by improper clearance.
Optimization of Heavy Load Operating Conditions
Supports continuous high-speed and impact loads, with a working temperature range covering -30 ℃ to 180 ℃. The lubrication performance meets the API CJ-4 standard, effectively preventing oil film rupture and reducing engine failure rates.
Diversified procurement options
In addition to original quality products, we provide an economic alternative solution for secondary factories (compatible with models 317-8766), using similar processes and testing standards, with outstanding cost-effectiveness, suitable for users with limited budgets or mild working conditions.
Technical Specifications
Compatible models: CAT 3406E, C15, C18, 3512B, etc
Lubrication requirements: compatible with CAT DEO/API CJ-4 engine oil
Application scenarios
Caterpillar engine overhaul or preventive maintenance
Refurbidity of mining equipment, generator sets, and ship power systems
Emergency replacement of bearings after failure under high load conditions
Procurement and Services
This product is supplied by Ningbo Qiuning Trading Co., Ltd., providing original quality and OEM replacement options. All products have undergone hardness testing, size verification, and pressure simulation testing, and come with compliance warranty and technical support services. Customers can flexibly choose according to their actual needs and enjoy fast delivery and after-sales support.
Precautions
Before installation, it is necessary to clean the bearing seat and confirm the journal size to avoid contamination or misalignment.
It is recommended to use original recommended viscosity engine oil to ensure lubrication effect.
The subsidiary products are suitable for medium and low load conditions, and the original quality version is recommended for long-term heavy-duty operations.
Through rigorous manufacturing and multiple inspections, this product provides reliable power transmission guarantee for Caterpillar equipment, helping the equipment to operate continuously and efficiently!
Our company provides more engine assemblies and accessories of different brands and models
If you are interested, please add my contact information directly:
WeChat/WhatsApp：+86 15888032469
E-mail： allen@perkins-rx.com
Remarks: The model or serial number processing is faster and the price is more favorable
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Water level sensor 2399957 (1656634)
Fan stand 1P9946
Fan bracket concealed pin 4N0684
Fan stand 6N6490
Hand oil pump: 1375541 (1597324)
Cylinder head 154-1612
Cylinder head gasket 110-6991
Cylinder liner 211-7826
O-ring gasket 7N-2046
Exhaust valve 210-2529
Intake valve 210-2542
Valve seat cushion 130-2607
Exhaust valve gasket 130-2608
Valve conduit 133-9306
Intake valve spring 194-4902
Exhaust valve spring 281-6157
Piston ring 278-0247
Middle piston rings 144-5695
Upper piston ring 214-6066
Oil ring 223-6361
Standard main bearing bush 149-6031
Thrust plate 7c-6029
Standard connecting rod bearing bush 107-7330
Fuel injector assembly 162-8809
Seawater pump 5N-5757
Supercharger assembly 121-5736
Valve cover gasket 2256451
O-ring 1507732
Crankshaft bearing 3537423
Connecting rod bearing bush 2984524
Thrust plate 329090
Thrust plate 329091
Piston 3109269
Connecting bushing 2255438
Intake valve 3153390
Exhaust valve 3153394
Valve oil seal 2526438
Valve oil seal 2543954
Piston cooling nozzle 2765605
Belt pulley fixing bolts
Fuel injector assembly 315-3381
Air filter assembly 1102556
Preheating plug
Water tank base pad 320-9211
Gasket 101-7539
Gasket 101-7540
Bolt 100-4461
Bolt 101-7541
Connecting rod assembly 225-5441
Connecting rod bolt 2255439
AS fuel line 232-9759
AS pipe 236-2144
Fuel filters and pipelines 357-4187/299-9265
AS discharge pipe 324-6505
AS discharge pipe 232-1794
AS discharge pipe 232-1328
Crankshaft assembly 359-0715
Valve guide 1850882
Intake valve seat ring 3229663
Exhaust valve seat ring 3229664
Diesel filter element 3574187/2999265
Oil pump 2258329
Fuel injector gasket 1408718
Fuel injector O-ring 2751038
Fuel pump O gasket 1523968
Diesel filter element 1R1804
Oil filter element 7W2326
Cylinder head gasket 2584946
Crankshaft front oil seal 2880422
Crankshaft rear oil seal 2327449
Engine front housing gasket 2773012
Engine front housing cover gasket 2268766
Oil pan gasket 2256005
Oil filter element seat gasket 2257944
Oil cooler housing gasket 2722265
Oil cooler housing gasket 2256818
Turbocharger gasket 1945390
Exhaust pipe gasket 2258536
Turbocharger pipeline gasket 2258530
Turbocharger pipeline gasket 2258533
Turbocharger pipeline gasket 2258534
Intake pipe gasket 2343030
CAM bearing bush 2327440
