Cummins ISDE ISDE140 ISDE185 QSB Piston 5255257 | Engine Parts

Product Details

Product Overview

This high-quality engine piston, bearing the part number 5255257, is specifically designed for use in a range of Cummins diesel engines. It is a direct fit replacement for models including the ISDE, ISDE140, ISDE185, and QSB series. Manufactured to OEM size specifications, this piston ensures reliable performance and durability in demanding environments.

Commonly utilized in heavy-duty equipment such as excavators, bulldozers, loaders, trucks, and buses, this component is critical for maintaining engine compression and efficiency. Whether you are servicing a forklift or a large construction vehicle, this piston offers a dependable solution for engine rebuilds or maintenance.

Key Features & Benefits

• OEM Specification Fit: Manufactured to original equipment manufacturer size standards, ensuring a precise fit and seamless integration with your Cummins engine.
• Durable Construction: Built to withstand high temperatures and pressures found in diesel combustion cycles, providing long service life and reduced downtime.
• Verified Compatibility: Designed for multiple engine models including ISDE, ISDE140, ISDE185, and QSB, offering broad application coverage for various machinery.
• Rigorous Quality Control: Each unit undergoes video outgoing inspection and machinery test reporting to confirm performance standards before shipment.
• Reliable Performance: Ensures optimal compression, reduced blow-by, and improved fuel efficiency, contributing to the overall health of your diesel engine.

Technical Specifications

OEM Cross-Reference

This product is a direct replacement for the following OEM part number:

• 5255257 (Cummins Piston)

Please verify your engine’s specific part number before purchasing to ensure compatibility.

Compatibility

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

• Engine Models: Cummins ISDE, ISDE140, ISDE185, QSB
• Applications: Forklift, Bulldozer, Bus, Excavator, Truck, Loader

Note: Fitment is inferred based on manufacturer specifications. Always cross-reference with your engine’s service manual.

Global Supply & Distribution

We offer worldwide shipping capabilities to meet the needs of international B2B buyers. Our logistics network ensures fast and reliable delivery to major ports and industrial centers across North America, Europe, Asia-Pacific, the Middle East, and Africa.

With extensive export experience and adherence to international trade compliance, we are equipped to handle bulk orders for workshops, dealerships, and fleet operators. Contact us for volume pricing and expedited shipping options.

Quality Assurance

All parts are produced under strict manufacturing standards to ensure reliability. Each piston is inspected before shipment, with video outgoing inspection and machinery test reports provided upon request. We back our products with a 6-month warranty against manufacturing defects, giving you confidence in your purchase.

FAQ

Q: How do I confirm if this piston fits my engine?

A: Verify your engine model (e.g., ISDE140, ISDE185, QSB) and cross-reference the part number 5255257 with your existing piston or service manual. If you are unsure, provide us with your engine serial number for assistance.

Q: Can this piston be used for a complete engine rebuild?

A: Yes, this piston is suitable for engine rebuilds. For a full overhaul, we recommend pairing it with compatible rings, liners, and bearings. Ensure all components are inspected and replaced as needed.

Q: What maintenance is recommended after installation?

A: After installation, follow standard diesel engine break-in procedures. Monitor oil pressure and coolant temperatures closely for the first 50 hours of operation. Regular oil and filter changes will extend the lifespan of the piston and other internal components.