Engine Piston Kit 5316178 4376493 for Cummins ISB QSB Trucks 2003–2018

Product Overview

Part Name: Engine Piston Kit (Piston with Rings & Pin)

Part Number: 5316178 / 4376493

Vehicle Compatibility: Heavy-duty trucks, buses, and construction equipment equipped with Cummins ISB and QSB diesel engine platforms (2003–2018). Commonly used in commercial transport, industrial machinery, and vocational fleet applications.

Configuration: High-quality aftermarket diesel engine piston kit manufactured to OEM-equivalent specifications. Supplied as a complete set including piston, piston rings, and wrist pin, engineered for durability and reliable operation in turbocharged diesel engines.

Function: Converts combustion pressure into mechanical force transferred through the connecting rod to the crankshaft, ensuring stable torque output, efficient fuel combustion, and reliable engine performance under heavy load conditions.

Technical Specifications

Type: Diesel Engine Piston Kit

Engine Models: Cummins ISB / QSB

Material: High-strength aluminum alloy piston with reinforced crown, precision-machined ring grooves, hardened steel wrist pin, and high-performance piston rings

Application: Fits Cummins ISB and QSB diesel engines requiring piston kit references 5316178 or 4376493 (2003–2018)

Cross-Reference: Aftermarket equivalent to Cummins OEM piston references 5316178 / 4376493; 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 bearings, seals, and gaskets during engine 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 ISB and QSB piston kits available for retail, wholesale, and export supply

Delivery Time: 3–7 days worldwide shipping