Machinery Engine Parts Main Bearing Set 3945918, Construction Machinery Replacement Engine Main Bearings

Keywords: 3945918, Main Bearing Set, 3945918 crankshaft main bearing, 6CT8.3 engine main bearing, 6CT8.3 spare parts, diesel engine main bearing, excavator engine parts, heavy‑duty engine bearing, construction machinery replacement parts

Product Overview

This main bearing set Part No.3945918 is an essential sliding bearing component specially designed for 6CT8.3 diesel engine. It supports the crankshaft during engine running, reduces friction between crankshaft and engine block, bears continuous radial impact load, maintains proper oil clearance and protects crankshaft journal and engine block from severe wear‑out damage. Our aftermarket main bearing kit is strictly manufactured according to OEM specification, featuring excellent load‑bearing and anti‑friction performance, stable operation under long‑time heavy‑load construction and mining working conditions. It is a reliable replacement spare part for full engine overhaul and repair of construction equipment.

Detailed Specifications

Key Features & Advantages

• Precise OEM Dimension Strictly produced following original drawing data, precise thickness tolerance, perfect fit without installation gap.
• High Load‑Bearing Capacity High‑performance bimetal alloy material, can withstand strong radial impact load and high pressure under heavy‑duty operation.
• Excellent Anti‑Friction & Wear‑Resistant Performance Good self‑lubricating property, effectively lower friction loss, reduce engine noise and extend crankshaft service life.
• High Temperature & Corrosion Resistance Resist high‑temperature oil erosion, not easy to deform or peel under long‑time high‑temperature working environment.
• Direct Plug‑in Replacement Fully interchangeable with original spare parts, easy installation without extra modification during engine repair.
• 100% Individual Testing Before Shipment Every single main bearing set passes strict size and performance inspection before delivery, stable and reliable for engineering projects.

Application Scope

Fit for 6CT8.3 diesel engine, widely used on these heavy‑duty machines: Excavators, Bulldozers, Wheel Loaders, Motor Graders, Generator Sets, Trucks And other construction machinery & industrial equipment equipped with 6CT8.3 engine.

Our Company Advantage

We are a professional supplier for full‑series construction machinery engine spare parts. We can supply complete engine overhaul kits including main bearings, connecting rod bearings, thrust washers, intake & exhaust valves, valve seals, fuel injectors, fuel pump, nozzle, piston, cylinder liner, cylinder head gasket, turbocharger and other wearing spare parts. Rich stock for most popular 6CT8.3, 6BT, 6D125 and other engine models Competitive factory direct price Fast shipment for in‑stock goods Accept mixed container order for one‑stop spare parts purchasing Provide professional technical matching service for your part number inquiry

Packaging & Shipping

Independent shock‑proof inner package for precision main bearing set Outer carton with shock‑proof protection for sea transportation Support sea freight, air freight, express delivery for small trial order Full export document can be offered (Commercial Invoice, Packing List)

Contact Us

If you need more spare parts for 6CT8.3 engine or other construction machinery, please send your part list to us. We will offer you our best quotation immediately.