Komatsu 4D94 Piston Ring Assy 6142-32-2020 | Engine Spare Parts

Product Details

Product Overview

This high-quality Piston Ring Assembly, part number 6142-32-2020, is engineered specifically for the Komatsu 4D94 diesel engine. As a critical component for engine overhaul and maintenance, this piston ring set ensures optimal compression, oil control, and extended engine life. We are a global supplier, shipping to major industrial markets including North America, Europe, Asia-Pacific, the Middle East, and South America, ensuring fast and reliable delivery to your workshop or job site.

Key Features & Benefits

• Precision Engineering: Manufactured to meet or exceed OEM specifications for a perfect fit and reliable performance.
• Superior Durability: Constructed from high-grade alloy steel with advanced wear-resistant coatings to withstand extreme combustion pressures and temperatures.
• Optimized Oil Control: Designed with a specific ring profile to minimize oil consumption and reduce blow-by, maintaining peak engine efficiency.
• Enhanced Compression: Ensures a tight seal between the piston and cylinder wall, maximizing power output and fuel economy.
• Rigorous Testing: Each ring set undergoes strict quality control checks, including dimensional accuracy and surface finish tests.

Technical Specifications

OEM Cross-Reference

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

• 6142-32-2020 (Komatsu Original)
• 6142-32-2010 (Alternative/Previous Version)

Compatibility

This piston ring assembly is specifically designed for the Komatsu 4D94 diesel engine. This engine is commonly found in:

• Komatsu PC78US-6 Excavator
• Komatsu PC78UU-6 Excavator
• Komatsu D20P-6 Bulldozer
• Komatsu D20AG-6 Bulldozer
• Other Komatsu industrial equipment utilizing the 4D94 engine platform.

Global Supply & Distribution

We are a trusted exporter of heavy machinery spare parts with a robust global logistics network.

• Worldwide Shipping: We ship via sea, air, and express courier (DHL, FedEx, UPS, TNT) to any destination.
• Major Markets: We actively serve clients in the USA, Canada, Australia, Germany, UAE, Saudi Arabia, South Africa, Singapore, and across Southeast Asia.
• Fast Delivery: Stock items are dispatched within 24-48 hours. Bulk orders are shipped from major ports like Shanghai, Ningbo, and Shenzhen.
• Trade Compliance: We provide all necessary export documentation and customs clearance support.

Quality Assurance

• Manufacturing Standards: Produced in ISO 9001:2015 certified facilities.
• Certifications: Parts are tested to meet SAE and JIS standards.
• Warranty: We offer a 12-month warranty against manufacturing defects.
• Testing: Each batch is subject to hardness, tensile strength, and dimensional verification.

FAQ

Q1: Is this piston ring set a direct replacement for the Komatsu original?
Yes, part number 6142-32-2020 is a direct OEM replacement. It matches the exact dimensions and material specifications of the original Komatsu part, ensuring a perfect fit without any modifications.

Q2: What is the recommended installation procedure for these piston rings?
We recommend following the Komatsu service manual. Key steps include: 1) Cleaning the ring grooves. 2) Staggering the ring end gaps (typically 120 degrees apart). 3) Using a proper ring compressor during installation to avoid breakage. 4) Checking the ring-to-groove clearance and end gap with a feeler gauge.

Q3: How can I verify this part is correct for my Komatsu 4D94 engine?
You can verify by checking the part number stamped on your old ring set. This assembly is specifically for the 4D94 engine with a standard 94mm bore. If your engine has been rebored, you may need an oversized ring set. Please confirm your engine block’s bore size before ordering.