Original Mahle Piston Rings 6204312203 For Komatsu S4D95 Engine PC60 PC60-6 PC60-7 PC120 Excavator

Product Details

Product Overview

This listing offers genuine Original Mahle Piston Rings, specifically designed for the Komatsu S4D95 diesel engine. As a critical component in the engine assembly, this piston ring set ensures optimal compression and oil control, directly impacting the performance and longevity of your equipment.

These piston rings are a direct replacement part for several popular Komatsu excavator models, including the PC60, PC60-6, PC60-7, and PC120. The part is manufactured under the strict quality standards of MAHLE, a globally recognized leader in engine component technology. Please verify your engine model (S4D95) and OEM number (6204312203) to confirm compatibility before purchase.

Key Features & Benefits

• Genuine MAHLE Quality: Manufactured to original equipment specifications, ensuring a perfect fit and reliable performance equivalent to the factory-installed parts.
• Engineered for Durability: Constructed from high-strength, wear-resistant materials designed to withstand the high temperatures and pressures within a diesel combustion chamber.
• Improved Compression & Oil Control: Precision-machined ring profiles optimize the seal between the piston and cylinder wall, maximizing engine power and minimizing oil consumption.
• Direct Fit Replacement: Designed as a drop-in replacement for the Komatsu S4D95 engine, reducing installation time and the risk of fitment errors.
• Application-Specific Design: Specifically engineered for the demanding conditions of construction and excavation machinery, providing extended service life in harsh working environments.
• Complete Set: Includes all necessary rings (compression and oil rings) for one piston, providing a comprehensive solution for your engine overhaul.

Technical Specifications

OEM Cross-Reference

This product is a direct replacement for the following OEM part numbers. Please verify your specific part number before ordering.

• Komatsu OEM: 6204312203

Compatibility

This piston ring set is specifically designed for use in the following applications. Fitment is based on the engine model and OEM number provided.

• Engine: Komatsu S4D95 Diesel Engine
• Excavator Models (commonly used for): Komatsu PC60, PC60-6, PC60-7, PC120

Note: Always cross-reference your engine serial number and existing part to ensure compatibility with your specific machine variant.

Global Supply & Distribution

We maintain a robust global supply chain to ensure fast and reliable delivery to customers worldwide. Our location in Shanghai, China, provides strategic access to major international shipping routes, allowing us to serve key markets efficiently.

• Major Markets Served: North America, Europe, Southeast Asia, Middle East, Africa, and Oceania.
• Shipping Capabilities: We offer various shipping options including express couriers (DHL, FedEx, UPS), air freight, and sea freight to meet your urgency and budget requirements.
• Fast Delivery: Stock items are dispatched within 24 hours of order confirmation, with express delivery to major industrial centers typically taking 5-7 business days.
• Trade Compliance: Our team has extensive experience in international trade documentation and customs clearance, ensuring a smooth transaction for B2B buyers.

Quality Assurance

We are committed to providing only the highest quality spare parts to our B2B partners.

• Manufacturing Standards: This product is manufactured by MAHLE, an ISO/TS 16949 certified company, ensuring adherence to strict automotive and industrial quality management systems.
• Product Condition: All parts are 100% new, never used or refurbished, and are packaged in the original MAHLE packaging to prevent damage during transit.
• Warranty: While specific warranty details are unavailable for this listing, we stand behind the authenticity and quality of our products. We provide online support for any inquiries regarding installation or performance.
• Inspection: Parts are subject to rigorous quality checks before dispatch to ensure they meet the specified dimensions and material properties.

FAQ

Q1: How do I confirm that this piston ring (6204312203) fits my engine?
A: First, visually inspect your current piston rings for any part numbers. The most reliable method is to check your engine’s data plate for the model number (it must be Komatsu S4D95). If your engine is a S4D95, this ring set is the correct specification. For excavators, this is commonly used for the PC60 and PC120 series, but the engine model is the definitive identifier.

Q2: What is the recommended installation procedure for these piston rings?
A: Installation should be performed by a qualified diesel mechanic. Key steps include: 1) Thoroughly cleaning the piston ring grooves. 2) Checking the ring end gap in the cylinder bore (refer to the Komatsu service manual for the S4D95). 3) Using a proper ring expander tool to avoid twisting or breaking the rings. 4) Staggering the ring end gaps (typically 120 degrees apart) to prevent gas blow-by. 5) Lubricating the rings and cylinder walls with clean engine oil during assembly.

Q3: How can I tell if my old piston rings need to be replaced?
A: Common symptoms of worn piston rings include: excessive blue or white smoke from the exhaust, high oil consumption (needing to top up oil frequently), low engine compression (detected with a compression tester), and a noticeable loss of engine power. If you are already disassembling the engine for an overhaul, it is standard practice to replace the piston rings with new ones, as they are a wear item that cannot be reused effectively.