4089669 Piston for Cummins ISB325 Engine | Excavator & Truck Parts

Product Details

Product Overview

This is a high-quality replacement piston, part number 4089669, specifically designed for the Cummins ISB325 diesel engine. As a critical internal engine component, this piston is engineered to meet OEM specifications, ensuring reliable performance and longevity in demanding applications.

Commonly used in a variety of heavy-duty equipment, this piston is suitable for excavators, trucks, forklifts, bulldozers, buses, loaders, and other industrial machinery powered by the Cummins ISB engine series. It is an ideal choice for maintenance and overhaul projects requiring a direct, high-quality replacement.

Key Features & Benefits

• Precision Engineering: Manufactured to OEM size specifications (4089669) for a perfect fit and seamless installation in your Cummins ISB325 engine.
• Durable Construction: Built from high-strength materials to withstand extreme combustion pressures and temperatures, ensuring a long service life.
• Enhanced Performance: Designed to maintain optimal compression ratios, contributing to improved engine power output and fuel efficiency.
• Rigorous Testing: Each unit undergoes strict quality control, with a Machinery Test Report and Video Outgoing Inspection provided to confirm performance standards.
• Reliable Warranty: Backed by a 6-month warranty, giving you confidence in your purchase and peace of mind for your operation.
• Versatile Application: Suitable for a wide range of equipment from construction to transportation, making it a versatile spare part for fleet maintenance.

Technical Specifications

OEM Cross-Reference

This piston (Part Number: 4089669) is a direct replacement for the original Cummins component. It is specifically designed for the ISB325 engine platform. For verification, please cross-reference with your engine’s original part number.

• Primary OEM Number: 4089669
• Compatible Engine Series: Cummins ISB (specifically ISB325)

Compatibility

This piston is commonly used for the following equipment and engine applications:

• Engine Models: Cummins ISB325
• Equipment Types: Excavators, Trucks, Forklifts, Bulldozers, Buses, Loaders, and other heavy machinery

Note: While this part is designed for the ISB325, it is recommended to verify compatibility with your specific engine serial number and application before purchase.

Global Supply & Distribution

We offer worldwide shipping and have extensive experience exporting to key industrial markets. Our logistics network ensures fast and reliable delivery to major ports and industrial centers across:

• North America (USA, Canada, Mexico)
• Europe (Germany, UK, Netherlands, France)
• Asia-Pacific (Australia, Japan, South Korea, Southeast Asia)
• Middle East (UAE, Saudi Arabia, Qatar)
• South America (Brazil, Chile, Argentina)

We comply with international trade standards and can handle bulk orders for fleet maintenance and industrial projects.

Quality Assurance

Our manufacturing process adheres to strict quality control standards. Every piston is inspected to ensure it meets the required specifications for material hardness, dimensional accuracy, and surface finish.

• Certifications: Products are manufactured in ISO-certified facilities (subject to supplier standards).
• Testing: A Machinery Test Report is available to verify performance. Video Outgoing Inspection can be provided upon request to confirm the product’s condition before shipping.
• Warranty: All parts come with a standard 6-month warranty against manufacturing defects. After-warranty service and spare parts support are available.

FAQ

Q: Is this piston a direct fit for my Cummins ISB325 engine?
A: Yes, this piston (part number 4089669) is manufactured to OEM size specifications for the Cummins ISB325 engine. It is a direct replacement part. However, we always recommend verifying the part number on your existing piston and your engine’s serial number to ensure complete compatibility.

Q: What should I check before installing a new piston?
A: Before installation, inspect the cylinder bore for wear, scoring, or damage. The piston ring end gap should be measured and adjusted according to the engine service manual. It is also critical to check the piston pin fit and connecting rod clearance. Always use new piston rings and bearings during an overhaul.

Q: Do you provide a warranty or testing reports for this part?
A: Yes, this piston comes with a 6-month warranty against manufacturing defects. We can also provide a Machinery Test Report and Video Outgoing Inspection upon request to confirm the part meets our quality standards before it is shipped to you.