4DQ5 Cylinder Liner 30607-50301 for Mitsubishi Engine Parts – Excavator, Forklift, Truck

Product Details

Product Overview

This high-quality Cylinder Liner, part number 30607-50301, is specifically designed for the Mitsubishi 4DQ5 diesel engine. As a critical component within the engine block, this liner provides the wear-resistant surface for the piston to travel, ensuring optimal compression and combustion efficiency.

Sourced from a reputable Chinese manufacturer (), this aftermarket replacement part is engineered to meet OEM specifications. It is commonly used in a wide range of heavy equipment, including excavators, forklifts, trucks, loaders, bulldozers, and buses. If you require a reliable replacement for a worn or damaged 4DQ5 engine cylinder liner, this component offers a cost-effective solution without compromising on performance.

Key Features & Benefits

• Precision Engineering: Manufactured to OEM standard size and specifications (30607-50301) to ensure a perfect fit within the Mitsubishi 4DQ5 engine block.
• Superior Wear Resistance: Constructed from high-grade cast iron with a hardened inner bore surface, designed to withstand high temperatures and friction for extended service life.
• Enhanced Engine Performance: Provides a proper seal between the piston and cylinder wall, maintaining optimal compression ratios for improved fuel efficiency and power output.
• Reliable Aftermarket Quality: Each unit undergoes rigorous quality control, including machinery test reports and outgoing video inspections, ensuring consistent quality.
• Versatile Application: Compatible with a variety of heavy machinery applications including excavators, forklifts, loaders, and trucks, reducing inventory complexity for B2B buyers.
• Complete Warranty: Backed by a 6-month warranty, providing peace of mind for your fleet maintenance or resale operations.

Technical Specifications

OEM Cross-Reference

This cylinder liner is a direct replacement for the following OEM and reference numbers:

• OEM Number: 30607-50301
• Engine Reference: Mitsubishi 4DQ5

Note: Please verify the original part number (30607-50301) on your old liner or engine parts catalog to confirm compatibility before ordering.

Compatibility

This part is commonly used for the following applications and engine types:

• Engine Model: Mitsubishi 4DQ5 (Diesel)
• Heavy Equipment: Excavators, Forklifts, Loaders, Bulldozers
• Commercial Vehicles: Trucks, Buses

Important Fitment Note: While this liner is designed for the 4DQ5 engine, application varies by specific machine model. Please confirm your engine model (4DQ5) and the physical dimensions of your current liner before purchase.

Global Supply & Distribution

Based in Guangdong, China, we are an experienced exporter of engine components. We offer worldwide shipping to meet the demands of international B2B buyers.

• Major Markets Served: North America (USA, Canada, Mexico), Europe (Germany, UK, France, Italy), Asia-Pacific (Australia, Japan, South Korea, Southeast Asia), Middle East (UAE, Saudi Arabia), Africa, and South America.
• Logistics: We provide fast delivery via sea freight (FOB/CIF) to major ports like Los Angeles, Hamburg, Rotterdam, and Dubai, as well as express air freight (DHL, FedEx, UPS) for urgent orders.
• Trade Compliance: We ensure all products comply with international trade standards and export regulations.

Quality Assurance

• Manufacturing Standards: Our parts are manufactured in ISO-certified facilities, adhering to strict quality control measures.
• Testing: Each batch of cylinder liners is subject to a Machinery Test Report to verify dimensional accuracy and material integrity. Video Outgoing Inspection is available upon request.
• Warranty: We offer a 6-month warranty against manufacturing defects, ensuring you receive a reliable product.

FAQ

Q: How do I know if this cylinder liner (30607-50301) fits my engine?
A: This liner is specifically designed for the Mitsubishi 4DQ5 diesel engine. To confirm fitment, check the part number stamped on your old liner. It should read 30607-50301. Also, verify your engine model is 4DQ5. If you are unsure, please contact us with your engine serial number or the dimensions (outer diameter, inner diameter, and length) of your current liner.

Q: What is the installation procedure for a dry cylinder liner?
A: The 4DQ5 liner is typically a “dry” type. Installation requires careful cleaning of the engine block bore. The liner should be pressed in with a suitable tool (not hammered) to prevent distortion. After installation, it is critical to check the liner protrusion (height above the block deck) to ensure proper cylinder head gasket sealing. We recommend having this installed by a qualified diesel mechanic.

Q: Do I need to replace piston rings or pistons with this liner?
A: It is highly recommended. When replacing a cylinder liner, the existing piston rings are likely worn. Installing new rings (and potentially a new piston) ensures a proper break-in and seal within the new liner’s bore. This prevents oil consumption and blow-by, maximizing the lifespan of your engine rebuild.