ISLE340 30 Piston Ring Set for Cummins Engine Parts – Diesel Engine Rings

Product Details

Product Overview

This high-quality piston ring set, designated ISLE340 30, is specifically designed for use in Cummins diesel engines. Manufactured by, these rings are engineered to meet or exceed OEM specifications, providing a reliable solution for engine overhaul and maintenance. The set is suitable for a wide range of heavy-duty applications, including excavators, bulldozers, trucks, and loaders, ensuring optimal compression and oil control.

Each piston ring in this set is precision-machined to OEM size standards, guaranteeing a proper fit within the cylinder bore. The rings are constructed from durable materials to withstand the high temperatures and pressures of diesel combustion, extending engine life and reducing downtime. This product is an ideal choice for workshops and fleet operators seeking cost-effective, high-performance replacement parts.

Key Features & Benefits

• Precision Fitment: Manufactured to OEM size specifications for seamless installation and reliable sealing in Cummins ISLE340 30 engines.
• Enhanced Durability: Constructed from high-strength materials to resist wear, heat, and corrosion, ensuring long service intervals.
• Improved Engine Performance: Optimized ring profile reduces blow-by, maintains compression, and minimizes oil consumption for better fuel efficiency.
• Comprehensive Set: Includes all necessary rings (compression, oil control, etc.) for a complete piston ring replacement during engine rebuild.
• Rigorous Quality Control: Each batch undergoes machinery test reports and outgoing video inspections to guarantee consistency and reliability.
• Versatile Application: Compatible with multiple heavy equipment types, including excavators, loaders, buses, and forklifts, reducing inventory complexity.
• Cost-Effective Solution: Provides a high-quality alternative to genuine parts without compromising on performance, backed by a 6-month warranty.

Technical Specifications

OEM Cross-Reference

While the ISLE340 30 is a direct replacement part, it is designed to match or supersede the following OEM part numbers for Cummins engines:

• Cummins OEM: 4089386, 4089387, 4089388 (Note: Please verify with your engine serial number for exact compatibility)
• Alternative Reference: ISLE340 30 Piston Ring Set (Standard size)

Note: This list is for reference. Always cross-check with your existing part number before purchase.

Compatibility

This piston ring set is commonly used for the following engine and vehicle applications:

• Engine Models: Cummins ISLE340 30 (also known as ISL or L-series variants with similar displacement)
• Vehicle Applications:
  • Excavators (e.g., Komatsu, Caterpillar models using Cummins engines)
  • Bulldozers and Loaders
  • Heavy-duty Trucks and Buses
  • Forklifts and Industrial Equipment
  • Agricultural Machinery

Important: Fitment is inferred based on common OEM applications. We recommend verifying compatibility with your specific engine model and serial number before installation.

Global Supply & Distribution

maintains a robust global supply chain to serve B2B customers worldwide. Our products are exported to major markets including North America, Europe, Asia-Pacific, the Middle East, Africa, and South America. We offer flexible shipping options via air, sea, and express couriers to major ports and industrial centers such as Los Angeles, Rotterdam, Dubai, Shanghai, and Sydney.

With extensive export experience, we ensure compliance with international trade regulations and provide customs documentation for smooth clearance. Our distribution network enables fast delivery times, typically 5-7 days for express shipping and 15-30 days for sea freight, depending on destination.

Quality Assurance

All piston ring sets are manufactured in ISO-certified facilities in Guangdong, China, adhering to strict quality control standards. Each production batch is subjected to:

• Machinery Test Reports: Comprehensive testing for dimensional accuracy, hardness, and tensile strength.
• Video Outgoing Inspection: Visual and functional inspection recorded for customer verification.
• Material Certification: Ensuring rings meet OEM-grade material composition for durability.

We back our products with a 6-month warranty against manufacturing defects, providing peace of mind for your engine rebuild projects.

FAQ

Q1: Will this piston ring set fit my Cummins ISLE340 engine?

Yes, the ISLE340 30 piston ring set is specifically designed for the Cummins ISLE340 30 engine model. However, we recommend checking your engine serial number and comparing it with OEM part numbers (e.g., 4089386) to confirm compatibility. If your engine has been bored oversize, you may need a different size ring set.

Q2: What is the installation procedure for these piston rings?

Installation should be performed by a qualified diesel mechanic. Ensure the cylinder bore is clean and within specifications. Install rings carefully using a ring expander to avoid breakage. Follow the manufacturer’s gap and orientation instructions (e.g., ring end gaps offset at 120 degrees) to prevent blow-by and oil consumption. Always refer to the Cummins service manual for your specific engine.

Q3: How can I ensure the rings last a long time?

Proper maintenance is key. Use high-quality diesel engine oil and change it at recommended intervals. Avoid overloading the engine or prolonged idling. During installation, ensure proper ring gap clearance and cylinder honing. Regular compression tests can help monitor ring condition and prevent premature failure.