Reliable Komatsu Camshaft Solutions for Industrial Diesel Engines

Eliminate valve lash noise and lobe spalling with induction-hardened camshafts engineered for high-cycle Komatsu excavators and dozers.

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Performance-Ready: Heavy-Duty Cam Shafts for Construction & Mining

When catastrophic cam lobe surface pitting or timing gear keyway shearing compromises your powertrain, securing a dependable Wholesale Komatsu Camshaft source is critical for minimizing fleet downtime. Our comprehensive inventory of precision-machined Cam Shafts supports the most demanding engine series, including the high-volume 6D95, 6D125, and 6D155 series. We also provide specialized support for the massive 6D170 mining series and the Yanmar-based 6D106 units, ensuring every valve event is synchronized to factory specifications. Sourcing a high-quality Camshaft Assy requires an understanding of metallurgical depth and surface hardness. At Ruich Value, we focus on reversing chronic Loss of engine power/lift by providing replacement shafts that feature superior chilled-iron profiles. Whether you are maintaining a PC200-8 excavation fleet or a heavy D355A bulldozer operation, our components are designed to withstand the extreme valve spring pressures and thermal loads of modern industrial diesel engines. Explore our technical buyer’s guide and full catalog below to find your specific engine configuration.

Buyer’s Guide: Choosing the Right Komatsu Camshaft

Identifying the correct shaft involves matching the engine series with its specific fuel system and aspiration design.

Engine Family	Technical Design	Best Application
95 / 102 Series	Mid-range timing profiles	PC200 Excavators and mid-sized Loaders.
107 / 114 Series	Common rail / electronic sync	Modern Tier 3 and Tier 4 equipment.
125 / 140 / 155 Series	Heavy-duty forged/chilled iron	Mining excavators and D155/D355 Bulldozers.

Komatsu Engine & Equipment Applications

Engine Family	Verified Equipment Models
6D95 / 6D102 Series	PC200-5, PC200-6, PC220-6
6D125 / 6D140 Series	PC400-5, PC450-6, PC600-7
6D155 / S6D155 Series	D155A, D355A Bulldozers, Mining Trucks

Why Source Komatsu Camshafts from Ruich Value?

We solve the metallurgical failures that lead to lost power and noisy valve trains in industrial applications.

High-Nickel Chilled Casting: Lobe surfaces hardened to HRC 52-58. Solves: Prevents lobe spalling and micro-pitting in high-hour mining machines.
CNC Precision Micropolishing: Journal surfaces finished to exact micron tolerances. Solves: Eliminates journal scoring from oil film starvation and saves mechanic installation time.
Dynamic Balancing: Every shaft is 100% balanced to eliminate timing gear vibration. Solves: Prevents timing gear keyway shearing and harmonic fatigue.
OEM-Spec Gear Teeth: Precision-cut timing gears available as complete kits. Solves: Eliminates electronic timing sync errors in modern common rail engines.
Ready-Stock Inventory: Full coverage from 4D94 to S6D155 series. Solves: Minimizes downtime during urgent breakdown repairs and improves your capital turnover.

Available Komatsu Camshaft Range

Browse our catalog of factory-grade camshafts, verified for precision lift and duration across all Komatsu engine generations.

Primary Part Number	Cross Ref Part Numbers	Compatible Engine Model	Compatible Machine Model
6115-21-2211		4D130	D60A Dozer
6207-41-1111	6207-41-1110	6D95	PC200-5 Excavator
6735-41-1111	6735411111	6D102	PC200-6 Excavator
6137-41-1120	6137411120	6D108	PC300-5 Excavator
6127-41-1103	6127-41-1220	6D155	D155A Bulldozer
6210-41-1012		6D140	PC600-7 Excavator
6150-41-1012	6150411012	6D125	PC400-6 Excavator
6745-41-1110		6D114	PC300-7 Excavator
6222-21-2210		6D110	PC220-3 Excavator
6754-41-1170		6D107	PC200-8 Excavator
6137-41-1120	6137411120	6D105	PC200-3 Excavator
YM129900-14580	129900-14580	4D94S	FD25 Forklift
6144-41-1110		S4D94	PC60-7 Excavator
6205-41-1300	6205411300	S4D95	PC120-5 Excavator
6732-41-1111	6732411111	S4D102 / B3.3	PC128UU Excavator
6207-41-1111	6207411111	S6D95	PC200-5 Excavator
6735-41-1111	6735411111	S6D102	PC220-6 Excavator
6222-41-1110	6222411110	S6D108	PC300-6 Excavator
6150-41-1012	6151-41-1010	S6D125	D85P Dozer
6128-41-1101	6127-41-1102	S6D155	D355A Bulldozer
6118-41-1110	YM123900-14580	6D106	PC130-6 Excavator

Detailed View: Select a specific item below to view detailed technical specifications, OEM cross-reference data, and high-resolution physical photos.

View all specs in our Komatsu Camshaft Catalog.

Looking for more components? Explore our complete Komatsu Industrial Diesel Engine Parts Catalog

Technical Insights: Identifying Komatsu Camshafts

Q: How do I distinguish between a 6D108 and S6D108 camshaft?

Answer: While they share the 108mm bore, the S (Supercharged) version often features different timing duration and overlap profiles to handle forced induction. Ruich Value ensures you receive the correct shaft by verifying your machine’s model year and aspiration type.

Q: What causes the gear keyway to shear on the 4D130 series?

Answer: This is usually caused by torsional vibration from worn harmonic balancers or gear lash issues. Our reinforced keyway designs and precision-milled gear interfaces help mitigate this risk during professional rebuilds.

Q: Are the Yanmar-based 6D106 camshafts interchangeable with other 100 series?

Answer: No. The 6D106 is a specific design (often YM reference). We explicitly cross-reference Yanmar original numbers to ensure 100% fitment for PC128/PC130 excavator owners.

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Note: Customized/billet development based on drawings or samples is also available for high-performance or obsolete engine applications.

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Reliable Komatsu Camshaft Solutions for Industrial Diesel Engines

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Performance-Ready: Heavy-Duty Cam Shafts for Construction & Mining