Cummins X15 ISX15 QSX15 Engine Piston 4357149 | HDPARTS for Excavator & Truck

Product Details

Product Overview

This HDPARTS diesel engine piston, part number 4357149, is a direct replacement component designed for the popular Cummins X15, ISX15, and QSX15 engine platforms. As a critical element of the engine’s combustion chamber, this piston ensures reliable power output and fuel efficiency. It is commonly used in heavy-duty applications such as excavators, bulldozers, loaders, trucks, and buses where engine durability is paramount.

Manufactured to OEM size specifications, this piston provides a seamless fit for engine overhauls or rebuilds. The 4357149 piston is a high-wear item, and replacing it with a quality component like this HDPARTS unit is essential to maintain compression, reduce blow-by, and extend engine service life. We recommend verifying your existing part number against the specifications below to ensure correct fitment for your specific engine build.

Key Features & Benefits

• Exact Part Number Fit: Direct replacement for Cummins part number 4357149. No modifications required for installation.
• OEM Size Compliance: Manufactured to original equipment manufacturer (OEM) size standards, ensuring correct clearance and compression ratios.
• Durable Construction: Built for the high-stress environment of heavy-duty diesel engines, offering resistance to thermal fatigue and mechanical wear.
• Improved Combustion Efficiency: Engineered to maintain optimal cylinder sealing, reducing fuel consumption and emissions while maximizing horsepower.
• Comprehensive Application: Suitable for a wide range of equipment including excavators, forklifts, buses, and on-highway trucks powered by Cummins X15/ISX15 engines.
• Verified Quality: Each piston undergoes rigorous testing and outgoing inspection, backed by a 6-month warranty for peace of mind.

Technical Specifications

OEM Cross-Reference

This piston is a direct replacement for the following OEM and aftermarket part numbers:

• Cummins OEM: 4357149
• Compatible Series: X15, ISX15, QSX15

Please verify your engine’s exact model and serial number to confirm compatibility if your part number is not listed above. This component is designed to meet or exceed OEM specifications.

Compatibility

This piston is specifically designed for use in Cummins engine families. Based on the part number, it is commonly used for the following applications:

• Engine Models: Cummins X15, Cummins ISX15, Cummins QSX15
• Vehicle/Equipment Applications: Excavators, Bulldozers, Wheel Loaders, Dump Trucks, Heavy Trucks, Buses, and Forklifts.

Note: Fitment is inferred from the part number and engine model. Always cross-reference with your engine’s service manual or existing part before purchase.

Global Supply & Distribution

Our supply chain is optimized for international B2B trade. We offer worldwide shipping with fast dispatch from our warehouse in Guangdong, China. Our logistics network supports efficient delivery to major industrial hubs and ports across North America (Houston, Los Angeles, Toronto), Europe (Rotterdam, Hamburg), Asia-Pacific (Singapore, Sydney), the Middle East (Dubai, Jeddah), and South America (Santos, Buenos Aires).

We have extensive experience in export documentation and customs clearance for heavy machinery parts. Whether you are a distributor in Germany or a fleet operator in Australia, we ensure your order arrives safely and on time.

Quality Assurance

All HDPARTS pistons are manufactured under strict quality control procedures in ISO-certified facilities. Each unit is subject to a machinery test report and video outgoing inspection to verify dimensional accuracy and material integrity. We stand behind our products with a 6-month warranty against manufacturing defects. Our commitment to quality ensures that you receive a reliable component that performs to industry standards.

FAQ

Q: Is this piston a direct fit for my Cummins ISX15 engine?
A: Yes, part number 4357149 is a standard OEM-size piston designed for the Cummins ISX15, X15, and QSX15 engine families. However, we recommend checking your engine’s serial number and the existing piston markings to confirm it matches the OEM size and application, especially if your engine has been previously rebuilt with oversized components.

Q: What is the installation procedure for this piston?
A: Installation should be performed by a qualified diesel mechanic. Standard procedures include cleaning the cylinder bore, lubricating the piston pin and rings, and using a proper ring compressor to install the assembly into the block. Always follow the Cummins service manual for torque specifications and ring gap orientation. A new set of piston rings (sold separately) is highly recommended.

Q: Does this piston come with rings and a pin?
A> This listing is for the piston assembly only (part 4357149). It typically includes the piston body. Piston rings and wrist pins are often separate components. Please verify your specific requirements or contact our sales team if you need a full piston kit including rings and pin for a complete overhaul.