Mitsubishi Piston MD103318 (4D55 / 4D56 Engine)

Part Number: MD103318Applicable Engine: Mitsubishi 4D55, Mitsubishi 4D56Structure: Aluminum alloy piston with internal cooling galleryMatching Equipment: Pickup trucks, light commercial vehicles

Manufactured strictly according to OEM dimensional standards, direct replacement without modification. Precision machined ring grooves ensure reliable sealing and reduce oil consumption. Special surface anti-friction treatment lowers friction loss and extends service life. Standard STD size, can assemble with piston ring, piston pin and circlip to form complete piston kit. All products pass strict dimensional inspection before delivery.

Product Advantages

Reliable Aluminum Alloy Structure

• Lightweight aluminum alloy material, efficient heat dissipation, stabilize piston operating temperature
• Built-in cooling oil gallery, effectively prevent piston ablation under continuous load
• Low reciprocating resistance, guarantee stable engine power output

Precise OEM Dimensions

• Consistent with original drawing specifications, good matching performance with cylinder liner
• Optimized pin boss design, reduce abrasion of piston pin
• Easy installation, shorten vehicle overhaul cycle

Broad Compatibility & Stable Supply

• Universal piston suitable for Mitsubishi 4D55 and 4D56 power system
• Mature aftermarket spare parts, sufficient inventory and fast delivery
• Support single piston or complete piston assembly supply

Technical Specifications