Product Overview

This is a premium piston ring set engineered specifically for the Mitsubishi 4DQ5 diesel engine. Designed for durability and optimal compression, it is an essential component for engine overhaul and maintenance. We supply this high-quality part globally, with extensive experience serving major markets in North America, Europe, the Middle East, and Asia-Pacific, ensuring reliable performance for commercial vehicles and industrial machinery.

Key Features & Benefits

• Premium Material: Manufactured from high-grade alloy steel for superior heat resistance and reduced wear.
• Precision Engineering: Ensures perfect cylinder sealing to maintain engine compression and power output.
• Reduced Oil Consumption: Optimized ring design controls oil flow effectively, promoting cleaner combustion.
• Extended Engine Life: Minimizes cylinder bore wear, protecting your engine investment and reducing downtime.
• Direct OEM Replacement: Manufactured to exact original specifications for guaranteed fit and performance.

Technical Specifications

OEM Cross-Reference

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

• Mitsubishi: 30617-51011

Compatibility

This piston ring set is compatible with engines using the Mitsubishi 4DQ5 diesel engine block. It is commonly found in:

• Mitsubishi Fuso Canter trucks and light-duty commercial vehicles.
• Various industrial and generator set applications powered by the 4DQ5 engine.
• Models typically from the late 1990s to 2000s (always verify your specific engine serial number for confirmation).

Global Supply & Distribution

We are a trusted global supplier of heavy-duty engine components. Our logistics network ensures efficient shipping to key industrial regions worldwide:

• Major Markets Served: North America (USA, Canada, Mexico), European Union, United Kingdom, Australia, Middle East (UAE, Saudi Arabia), and Southeast Asia.
• Fast Delivery: We offer reliable air and sea freight to major ports and logistics hubs, with consolidated shipping options for bulk orders.
• Export Compliance: All shipments are prepared with professional commercial documentation (Invoice, Packing List, Certificate of Origin) for smooth customs clearance.

Quality Assurance

Every part in our inventory is sourced from reputable manufacturers adhering to strict quality control protocols.

• Manufacturing Standards: Produced to meet or exceed original equipment specifications for dimensions, material, and performance.
• Rigorous Testing: Components undergo hardness testing, dimensional checks, and visual inspections to ensure defect-free delivery.
• Warranty: Backed by a standard warranty against manufacturing defects. Please contact us for specific warranty terms applicable to your region.

FAQ

Q: How do I confirm this piston ring set fits my specific Mitsubishi 4DQ5 engine?
A: The primary fitment is confirmed by the part number 30617-51011. We strongly recommend cross-referencing this number with your engine’s service manual or verifying your engine’s serial number and existing old part numbers before ordering.

Q: Is this a complete set for one cylinder?
A: Yes, this part number typically refers to a full piston ring set for one piston, including the compression rings and oil control ring. Please specify the quantity needed for your engine overhaul (e.g., 4 sets for a 4-cylinder engine).

Q: What are the recommended installation procedures?
A: Professional installation is recommended. Always ensure the cylinder bore is within specification, properly honed, and clean. Rings must be installed with the correct orientation (markings typically facing upward) and with staggered ring end gaps as specified in the engine service manual to ensure proper sealing and performance.

Our advantages

1.An authorized wholesaler of Isuzu genuine parts, Hino genuine parts, Mitsubishi genuine parts and Mahle parts.

2. We are not only supply genuine parts, but also high quality OEM parts, which are made in China or made in Japan.

3. More than 10 years of experience in machinery parts, professional supply of diesel engine parts.

4. Fast delivery, the fastest can be shipped in one day ,more than 500,000 of different types parts in stock.

5. Scientific ERP system, easy and fast to locate the parts that customer needs.

6. Professional technician checks the parts before delivery, to make sure the parts are correct, usable and defect-free.

Exhibition

Packing&Shipping

1.  Our shipment is by air/sea/express (DHL/FEDEX/TNT/UPS/EMS).

2.  Once we get confirmation of payment, we will ship out products in 24 hours.

3.  Our packaging is standard export wooden box or others as your requirement.

4.  We will check the products before shipping, and give the pictures to our customers to confirm.

FAQ

Q1: Are you trading company or manufacturer ?
A: We are factory and trading company.

Q2: How long is your delivery time?
A: Generally it is 1-3 days if the goods are in stock. or it is 3-7 days if the goods are not in stock, it is according to quantity.

Q3: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.

Q4: How do you make our business long-term and good relationship?
A:1. We keep good quality and competitive price to ensure our customers benefit ;
2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.