Product Overview

This is a premium replacement Rocker Arm engineered for the Komatsu 6D125 diesel engine, specifically for the PC400-3 excavator model. As a global supplier of heavy machinery engine components, we provide reliable parts to major markets worldwide, including North America, Europe, Asia-Pacific, and the Middle East, ensuring your equipment maintains peak performance with minimal downtime.

Key Features & Benefits

• Precision Engineered: Manufactured to exact OEM specifications for a perfect fit and reliable valve actuation.
• High-Durability Material: Constructed from high-grade alloy steel, heat-treated for exceptional strength and wear resistance under continuous high-load operation.
• Optimized Performance: Ensures precise valve timing and lift, contributing to consistent engine power, fuel efficiency, and reduced emissions.
• Rigorous Quality Control: Each component undergoes dimensional inspection and material verification to guarantee it meets or exceeds industry standards.
• Global Logistics Support: Streamlined export processes and partnerships with major freight carriers enable fast delivery to key industrial hubs and ports internationally.

Technical Specifications

OEM Cross-Reference

Primary OEM Part Number: 6150-41-5400 (Komatsu)

This part is a direct replacement for the original Komatsu component. Always verify the part number stamped on your original rocker arm for confirmation.

Compatibility

This rocker arm is designed for use in the Komatsu 6D125 series diesel engine. Its primary application is for the Komatsu PC400-3 hydraulic excavator. It is recommended to consult your equipment’s service manual or contact our technical support to confirm fitment for your specific serial number range.

Global Supply & Distribution

We specialize in the international export of heavy equipment parts. Our supply chain is optimized for fast, reliable shipping to all major regions:

• Americas: Efficient delivery to USA, Canada, Mexico, and South American industrial centers.
• Europe & UK: Consolidated shipments to major EU ports and inland logistics hubs.
• Asia-Pacific: Strong supply lines to Australia, Southeast Asia, and key markets in Japan and Korea.
• Middle East & Africa: Extensive experience supplying to mining, construction, and oil & gas sectors in these regions.

We handle all export documentation, customs compliance, and Incoterms to ensure a smooth international transaction for our B2B clients.

Quality Assurance

Our commitment to quality ensures you receive a reliable component for critical engine repair:

• Manufacturing Standards: Produced in ISO-certified facilities using advanced CNC machining and quality alloys.
• Inspection Process: Every batch undergoes strict dimensional checks, hardness testing, and visual inspection for defects.
• Warranty: Backed by a standard warranty against manufacturing defects. Please contact us for specific warranty terms applicable to your region.

FAQ

Q1: Is this rocker arm a direct bolt-on replacement for my Komatsu PC400-3?
A1: Yes, this part (6150-41-5400) is manufactured to the exact OEM specifications of the original Komatsu rocker arm for the 6D125 engine in the PC400-3, ensuring a direct fit without modification.

Q2: Should rocker arms be replaced individually or as a set?
A2> For optimal engine balance and performance, it is highly recommended to replace all rocker arms on the cylinder head as a complete set, especially during major overhauls or if wear is evident. This prevents uneven valve timing and wear.

Q3: What are the signs of a failing rocker arm?
A3: Common symptoms include excessive valve train noise (ticking or clicking), loss of engine power, irregular engine idle, or visible wear/pitting on the rocker arm’s contact surface with the valve stem or pushrod. Regular valve lash adjustment and inspection are key to longevity.

Our advantages

1.An authorized wholesaler of Isuzu genuine parts, Hino genuine parts, Mitsubishi genuine parts and Mahle parts.

2. We are not only supply genuine parts, but also high quality OEM parts, which are made in China or made in Japan.

3. More than 10 years of experience in machinery parts, professional supply of diesel engine parts.

4. Fast delivery, the fastest can be shipped in one day ,more than 500,000 of different types parts in stock.

5. Scientific ERP system, easy and fast to locate the parts that customer needs.

6. Professional technician checks the parts before delivery, to make sure the parts are correct, usable and defect-free.

Exhibition

Packing&Shipping

1.  Our shipment is by air/sea/express (DHL/FEDEX/TNT/UPS/EMS).

2.  Once we get confirmation of payment, we will ship products in 2 days.

3.  Our packaging is standard export wooden box or others as your requirement.

4. We’ll check and test the products before shipping , and givethe pictures to our customers to confirm.

FAQ

Q1. What is your company major products?

A: Our main products are Liner kit, Piston, Rings, Liner, Gasket kit, Bearing, Injection pump, Nozzle, Water pump, Oil pump,Crankshaft, Turbocharger,Filter, etc.

Q2.What is the MOQ?

A: Normally we can supply any quantity if we have in stock.

Q3. What is your payment term ?

A: We accept Western Union, T/T, Paypal.

Q4. What is the packing ?

A: Carton or wooden case , If you want to put your logo on the packing , We will do it after get your authorization letter.

Q5. When can you deliver products after payment ?

A: By Express ,usually might take 3-4 days ;By Air , Usually take 7-9 days ; By Sea ,usually take 1-2 months .

Q6. What can you do to complete order perfectly ?

A: In the beginning , We will communicate with clients in details to understand what they need .

Before packing , We will check the products and send photos to clients .After confirmation ,

We will packing products well to avoid damage . Once we get tracking number ,

We will send it to customer and keep contact in with clients .