Piston 4974318 For M11 QSM11 ISM11 Heavy‑Duty Diesel Engine

Keywords: 4974318, Engine Piston, M11 Piston, QSM11 Piston, ISM11 Piston, Heavy‑Duty Industrial Diesel Engine Parts, Construction Machinery Replacement Engine Piston

Product Overview

This engine piston Part No.4974318 is a core power component specially compatible with M11, QSM11, ISM11 heavy‑duty industrial diesel engines. It bears high‑temperature combustion pressure inside cylinder, converts gas expansion force into mechanical power to drive engine operation. Our aftermarket piston is strictly manufactured following OEM drawing specifications, adopting premium casting material with high‑temperature resistance and wear‑resistant performance. It can stably withstand harsh working conditions of heavy‑load industrial equipment, trucks and construction machinery. It is ideal replacement spare part for engine overhaul and rebuild service.

Detailed Specifications

Key Features & Advantages

• Strict OEM Dimensional Compliance Precise crown shape, pin bore size and ring groove position, perfect match for original cylinder liner, piston pin and piston rings.
• High‑Strength Heat‑Resistant Material Excellent thermal fatigue resistance, resist high‑temperature ablation under long‑time heavy‑load running.
• Fine Surface Treatment Reduce friction loss inside cylinder, lower wear rate and extend engine service cycle.
• Rigorous Pre‑Shipment Inspection Dimension measurement and appearance defect inspection finished before shipment, avoid assembly mismatch.
• Versatile Heavy‑Duty Application Suitable for industrial machinery, heavy‑duty truck and construction equipment powered by M11 / QSM11 / ISM11 engine.

Application Scope

Compatible Equipment List: ‑ Engines: M11, QSM11, ISM11 Heavy‑Duty Industrial Diesel Engine ‑ Widely used for heavy‑duty trucks, generator sets and various construction machinery engine rebuild.

Our Company Advantage

• We are professional supplier of full‑range diesel engine and construction machinery spare parts, supplying engine rebuild kits, pistons, injectors, sensors, hydraulic components and other replacement spare parts.
• Large ready stock for various heavy‑duty engine accessories
• Factory direct wholesale competitive price
• Mixed‑order & one‑stop spare‑parts procurement supported
• Professional part‑number matching technical support service

Packaging & Shipping

• Inner shock‑proof protective package to prevent collision damage in transit
• Outer reinforced export carton for long‑distance sea and land transportation
• Multiple shipping selections: sea freight, air freight, international express for small trial orders
• Export documents including Commercial Invoice, Packing List can be provided

Contact Us

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