Engine Piston Set 4025158 3800470 for Cummins M11 QSM11 Trucks 1998–2015

Product Overview

Part Name: Engine Piston Set

Part Number: 4025158 / 3800470

Vehicle Compatibility: Heavy-duty trucks, buses, and construction equipment equipped with Cummins M11 and QSM11 diesel engine platforms (1998–2015). Suitable for long-haul transport, industrial equipment, and vocational fleet applications requiring reliable high-displacement diesel engine performance.

Configuration: High-quality aftermarket engine piston set manufactured to OEM-equivalent specifications. Designed with reinforced piston crowns and precision-machined ring grooves to withstand high compression and combustion pressures in heavy-duty diesel engines.

Function: Converts combustion pressure into mechanical force transferred through the connecting rods to the crankshaft, ensuring stable torque output and efficient engine performance under demanding operating conditions.

Technical Specifications

Type: Diesel Engine Piston Set

Engine Models: Cummins M11 / QSM11

Material: High-strength aluminum alloy pistons with reinforced crowns and precision-machined ring grooves for heavy-duty diesel applications

Application: Fits Cummins diesel engines requiring piston set references 4025158 or 3800470 (1998–2015)

Cross-Reference: Aftermarket equivalent to Cummins OEM piston references 4025158 / 3800470; compatible with standard connecting rods and crankshaft assemblies (verify bore size before installation)

Installation: Professional engine assembly recommended. Confirm piston-to-wall clearance, ring end gap, and replace piston rings, bearings, and gaskets during rebuild.

Service Interval: Replace during major engine overhaul or when experiencing compression loss, piston damage, excessive oil consumption, or cylinder wear.

Delivery & Availability

Stock Options: Premium-quality aftermarket Cummins M11 and QSM11 piston sets available for retail, wholesale, and export supply

Delivery Time: 3–7 days worldwide shipping