Komatsu Piston S6D140 6212-31-2170 / 6212-31-2110 / 6212-31-2151 diesel engine

Komatsu Piston S6D140 6212-31-2170 / 6212-31-2110 / 6212-31-2151 – OEM Quality

✅ In stock – order now!

📄 Product Description:

This piston is designed for the Komatsu S6D140 diesel engine, widely used in heavy-duty equipment such as excavators, bulldozers, and dump trucks. Manufactured to OEM standards, it ensures accurate fitment, reliable compression, and excellent heat resistance – ideal for engine overhaul in harsh conditions.

🔧 Compatibility:

Engine model:

• Komatsu S6D140 (inline 6-cylinder diesel engine, NA or turbocharged)

Applications:

• Excavators

• Bulldozers

• Off-road dump trucks

• Industrial construction machinery

🔁 Cross-reference part numbers:

• 6212-31-2170

• 6212-31-2110

• 6212-31-2151

🛠️ Specifications:

• Piston diameter: 140 mm

• Piston height: ~145 mm

• Pin diameter: 45 mm

• Combustion chamber: Concave or turbo-type (depends on engine version)

• Material: High-strength aluminum alloy

• Condition: New

• Warranty: 6 months

• Packaging: OEM box or export-grade crate

• Shipping: Worldwide delivery available

🔍 Key Features:

• OEM quality – matches Komatsu specifications

• High resistance to wear and heat

• Built for high-load environments

• Perfect for rebuilding S6D140 diesel engines