Durable V28 Diesel Engine Parts Main Bearing Set AR4221

Keywords: AR4221 main bearing set, V28 diesel engine crankshaft main bearing kit, engine main bearing shell, excavator machinery engine spare parts, heavy‑duty construction equipment bearing, aftermarket replacement bearing set

Product Overview

Main Bearing Set Part No.AR4221 is complete crankshaft main bearing kit for V28 diesel engine, widely installed on excavators and heavy‑duty construction machinery. It bears heavy radial load from crankshaft during engine operation, builds stable lubricating oil film and reduces friction loss between crankshaft and engine cylinder block. This replacement bearing set solves typical engine malfunctions including abnormal knocking noise, metal rattling, low oil pressure and bearing burnout caused by original bearing wear, surface scratch and alloy layer peeling. Every main bearing set is subject to strict material test and dimensional tolerance inspection before shipment.

Detailed Specifications

Key Features & Advantages

• High‑quality bimetallic alloy material, reliable load‑bearing and anti‑friction performance under severe heavy‑duty working conditions.
• Precise machining dimension, good fitting performance to keep stable lubricating oil film.
• Excellent surface workmanship, resist scratch and alloy layer peeling for longer service life.
• Perfect fit for direct installation, ideal choice for V28 diesel engine overhaul and maintenance.
• Effectively eliminate abnormal knocking and low oil pressure faults caused by worn original bearings.

Application Scope

Fit Equipment: Excavators and heavy‑duty machinery equipped with V28 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.