Product Specification

Komatsu PC400-6 Cylinder Head Assembly for 6D125 Diesel Engine Replacement

The Komatsu PC400-6 Cylinder Head Assembly is a high-quality aftermarket replacement designed for diesel engine repair, overhaul, and rebuilding applications. This complete cylinder head assembly is manufactured with precision machining technology to ensure reliable sealing performance, efficient combustion, and long service life.

Designed for the Komatsu PC400-6 excavator equipped with the 6D125 diesel engine, this cylinder head assembly is an ideal replacement solution for cracked, damaged, or worn cylinder heads. It helps restore engine performance, reduce maintenance downtime, and improve equipment reliability.

The Komatsu PC400-6 is widely used in heavy construction applications. This replacement cylinder head assembly is suitable for excavators, mining equipment, and other heavy-duty machinery requiring dependable engine components.

Reference Part Numbers

• 6151-12-1100
• 6151-12-1101
• 6151-12-1110
• 6150-12-1100
• R6151121101

These part numbers are commonly referenced for Komatsu 6D125 cylinder head applications used in PC400-6 excavators. Please verify your engine serial number or original part number before ordering to ensure compatibility.

FAQ

Q1: Is this Komatsu PC400-6 cylinder head assembly complete?

Yes. This product is supplied as a complete cylinder head assembly. The included components may vary depending on customer requirements and configuration.

Q2: What engine does the PC400-6 cylinder head fit?

This cylinder head assembly is designed for Komatsu PC400-6 excavators equipped with the 6D125 diesel engine. Please provide your engine serial number to confirm compatibility.

Q3: Does the cylinder head include valves?

The complete cylinder head assembly can be supplied with valves, valve guides, valve seats, springs, and related components depending on the selected configuration.

Q4: Is this an OEM replacement part?

This is a high-quality aftermarket replacement manufactured to provide reliable fit, performance, and durability comparable to OEM specifications.

Q5: Do you supply other Komatsu PC400-6 engine parts?

Yes. NUK supplies Komatsu engine replacement parts including cylinder blocks, crankshafts, pistons, cylinder liners, overhaul kits, gasket kits, injectors, fuel injection pumps, oil pumps, water pumps, turbochargers, and other diesel engine components.

Related Engine Parts Available

In addition to cylinder head assemblies, NUK also supplies a full range of high-quality aftermarket diesel engine replacement parts for engine repair, overhaul, and rebuilding projects.

Our product range includes:

• Pistons
• Piston Rings
• Cylinder Liners
• Sleeve Kits
• Full Gasket Kits
• Cylinder Head Gaskets
• Main Bearings
• Connecting Rod Bearings
• Crankshaft Bearings
• Camshaft Bushings
• Connecting Rod Bushings
• Fuel Injectors
• Injector Nozzles
• Fuel Injection Pumps
• Fuel Feed Pumps
• Thermostats
• Cylinder Heads
• Cylinder Blocks
• Intake Valves
• Exhaust Valves
• Push Rods
• Tappets
• Valve Springs
• Cylinder Head Bolts
• Flywheels
• Crankshaft Gears
• Idler Gears
• Timing Gears
• Camshaft Gears
• Starter Motors
• Alternators
• Turbochargers
• Water Pumps
• Oil Pumps
• Connecting Rods
• Camshafts
• Timing Covers
• Flywheel Housings
• Oil Coolers
• Rocker Arms
• Rocker Arm Shafts
• Valve Guides
• Valve Seats

Whether you need individual engine components or complete engine rebuild solutions, NUK provides reliable aftermarket replacement parts compatible with CAT , cummin ss, Perkins, Kubota, Isuzu, Komatsu, Mitsubishi, Nissan, Yanmar, Vol voo, Deutz, John Dee ree, Hino, Doosan, Hyundai, JCB, Toyota, Hitachi, Kobelco, SANY, XCMG, SDLG, Weichai, Yuchai, and many other diesel engine brands.