Views: 0 Author: Site Editor Publish Time: 2026-06-15 Origin: Site
Komatsu S6D125 Cylinder Head for PC400-6 The Komatsu PC400-6 is a classic 40-ton class mainstay machine in engineering infrastructure and mining, equipped with an S6D125 turbocharged heavy-duty engine. With its low-speed, high-torque, and strong continuous operating capability, it has become a core piece of equipment for earthmoving projects, mine stripping, and site leveling.
During long-term, high-intensity continuous operation, the cylinder head is susceptible to high temperature, high pressure, and equipment vibration, leading to various malfunctions and significantly increasing maintenance costs. Hebei Keluo Construction Machinery's S6D125 cylinder head is precisely adapted to the Komatsu PC400-6's overall parameters, offering high compatibility and strong stability.
Precise Adaptation Parameters：
Core Parameters | Parameters |
Compatible Model: | Komatsu PC400-6 Large Excavator |
Compatible Engine: | S6D125 Inline Six-Cylinder Turbocharged Engine |
Core Material: | High-strength wear-resistant cast iron, integrally cast |
Machining Process: | Stress relief treatment, CNC precision surface machining, water and oil passage polishing, high-pressure airtightness testing |
Product Styles: | Bare cylinder head, with valve assembly (two specifications available) |
Suitable Working Conditions: | Heavy-duty mining, earthmoving and infrastructure construction, long-term continuous high-load operation |
Assembly Characteristics: | Original factory standard hole positions, zero-error fit to the entire machine, ready to use immediately |
Product Core Performance Highlights:
1. Dedicated Materials for Working Conditions, Enhanced Damage Resistance
Optimized material formula for the heavy-duty operation characteristics of the PC400-6, using high-quality materials, with a service life far exceeding that of ordinary general-purpose cylinder heads.
2. Precision Machining, Excellent Sealing Performance
The cylinder head mating surface adopts CNC micron-level precision milling technology, with uniform and regular flatness, and all hole positions are precisely aligned, ensuring a sealed operating environment for the engine.
3. Optimized intake manifold structure for stable power output. Smooth intake, efficient exhaust, and complete fuel combustion effectively restore the engine's rated power.
Professional Installation and Maintenance Points. Proper installation and maintenance are key to extending cylinder head lifespan.
1. Thoroughly clean the cylinder block contact surfaces before installation.
2. When replacing the cylinder head during a major overhaul, it is recommended to replace the cylinder head gasket, valve stem seals, and sealing kit to improve overall sealing.
3. After installation, perform low-speed idling break-in and thoroughly check for abnormal noises, leaks, high temperatures, and other abnormal conditions.
Hebei Keluo Construction Machinery Co., Ltd. has deep expertise in end-user construction scenarios and is familiar with the pain points and failure patterns of various heavy-duty equipment. We provide customers with a one-stop service including precise model selection and matching, professional technical guidance, and efficient after-sales follow-up, helping various construction machinery equipment operate stably and efficiently, and effectively reducing customers' equipment maintenance costs and downtime losses.
