Mining Machinery Engine Parts Main Bearing Set AR12250 for K38 Engine

Keywords: AR12250 main bearing set, K38 crankshaft main bearing kit, diesel engine main bearing shell, mining machinery engine spare parts, excavator engine replacement bearing, aftermarket main bearing set

🔹Product Overview

Main Bearing Set Part No.AR12250 is complete crankshaft main bearing kit for K38 diesel engine, widely used on mining machinery, excavators and heavy‑duty construction equipment. It bears massive radial load of crankshaft during engine operation, forms stable lubrication oil film and reduces friction loss between crankshaft and engine cylinder block. This replacement bearing set repairs typical engine issues including abnormal knocking noise, metal rattling, low oil pressure and bearing burnout caused by original bearing wear, surface scratch and alloy layer peeling. Each main bearing set undergoes strict material test and dimensional tolerance inspection before delivery.

🔹Detailed Specifications

🔹Key Features & Advantages

• High‑quality bimetallic alloy material, excellent load‑bearing and anti‑friction performance for heavy‑duty mining working conditions.
• Strict dimensional accuracy, good fitting tolerance to maintain stable lubricating oil film.
• Superior surface treatment, resist scratch and alloy layer peeling, extend service life.
• Perfect fit size for direct installation, suitable for K38 engine overhaul and maintenance.
• Effectively solve abnormal knocking and low oil pressure faults resulted from worn original bearings.

🔹Application Scope

Fit Equipment: Mining machinery, excavators and heavy‑duty machinery equipped with K38 diesel engine ‑ Widely applied for engine repair workshops and routine equipment maintenance projects.

🔹Our Company Advantage

• We are professional supplier of full‑range construction machinery spare parts, supplying engine parts, hydraulic parts, electrical parts, seal kits and complete overhaul kits.
• Large ready stock for various machinery spare parts
• Factory‑direct wholesale competitive price
• Mixed‑order & one‑stop spare‑parts procurement supported
• Professional part‑number matching technical support service

🔹Packaging & Shipping

• Neutral export carton box with shock‑proof inner packing, avoid scratch and collision during long‑distance transportation
• Multiple shipping options: sea freight, air freight, international express for small trial orders
• Export documents such as Commercial Invoice, Packing List can be provided.

🔹Contact Us

If you need more excavator spare parts or other construction machinery replacement components, please send your parts list to us. We will offer our best quotation for you quickly.