Product Details

Product Overview

This high-quality aftermarket piston is specifically engineered for the MAN D2866 diesel engine series. Designed to meet or exceed OEM specifications, this component is an ideal replacement for maintaining the power, efficiency, and longevity of your heavy-duty equipment. We provide global shipping solutions to major industrial centers across North America, Europe, Asia-Pacific, the Middle East, and South America, ensuring fast and reliable delivery for B2B clients worldwide.

Key Features & Benefits

• Superior Durability: Manufactured from high-strength aluminum alloy with a reinforced crown for exceptional resistance to thermal and mechanical stress.
• Precision Engineering: CNC-machined to exact tolerances (0.01mm) ensuring perfect fitment and optimal compression ratios for the D2866 engine.
• Enhanced Performance: Features an optimized ring groove design and oil control ring slot for reduced friction, lower oil consumption, and improved fuel efficiency.
• Wear Resistance: Advanced surface treatment (tin-plated or graphite-coated) on the skirt reduces scuffing and extends service life in demanding applications.
• Cost-Effective Solution: Offers reliable OEM-grade performance at a competitive price point, reducing maintenance costs for fleet operators.

Technical Specifications

OEM Cross-Reference

This piston is a direct replacement for the following original MAN part numbers:

• Primary Part Numbers: 51.02501-7621, 51.02501-7602, 51.02501-7556
• Alternative/OEM Numbers: 51.02501-7601, 51.02501-7555, 51.02501-7620

Note: Always verify the part number on your existing piston or consult your engine manual to confirm compatibility before purchase.

Compatibility

This piston is specifically designed for the MAN D2866 series diesel engine. Common applications include:

• Heavy-Duty Trucks: MAN TGA, TGS, TGM series equipped with the D2866 engine.
• Construction Equipment: Excavators, wheel loaders, and bulldozers powered by MAN D2866.
• Industrial & Marine: Generators, pumps, and marine propulsion systems using the D2866 platform.
• Bus & Coach: MAN Lion’s Coach and similar models.

Year Range: Primarily used in engines manufactured from the early 2000s to present, depending on the specific vehicle/equipment model.

Global Supply & Distribution

We are a leading supplier of aftermarket engine parts, exporting to over 50 countries. Our logistics network ensures:

• Worldwide Shipping: Fast and reliable delivery via air, sea, and express couriers (DHL, FedEx, UPS, TNT).
• Major Markets Served: North America (USA, Canada, Mexico), Europe (Germany, UK, France, Poland), Asia-Pacific (China, Australia, Singapore), Middle East (UAE, Saudi Arabia), and South America (Brazil, Chile).
• Port & Industrial Center Delivery: Efficient shipping to major ports like Rotterdam, Shanghai, Singapore, and Dubai, as well as direct to inland industrial hubs.
• Trade Compliance: All shipments are handled with full customs documentation and international trade compliance.

Quality Assurance

• Manufacturing Standards: Proudly manufactured in ISO 9001 and TS 16949 certified facilities.
• Quality Control: Each piston undergoes rigorous inspection for dimensional accuracy, material hardness, and surface finish.
• Testing: Components are tested for thermal fatigue, wear resistance, and compression integrity.
• Warranty: We offer a 12-month warranty against manufacturing defects from the date of purchase.

FAQ

Q1: Is this piston a direct fit for my MAN D2866 engine?
A: Yes, this piston (51.02501-7621/7602/7556) is an OEM-equivalent part designed to be a direct bolt-in replacement for the MAN D2866 engine. It matches the original dimensions and specifications. However, we recommend verifying the part number on your current piston to ensure compatibility, especially regarding oversize options.

Q2: Do I need to replace the piston rings and pin when installing this piston?
A: Yes, it is strongly recommended to always replace the piston rings, piston pin, and circlips when installing a new piston. Using old rings can lead to poor sealing, increased oil consumption, and reduced engine performance. We can supply matching ring sets and pins upon request.

Q3: What is the recommended break-in procedure after installing this piston?
A: After installation, follow a standard diesel engine break-in procedure. Run the engine at varying RPMs (avoiding prolonged idling) for the first 1-2 hours. Avoid heavy loads for the initial 10-20 hours of operation. Change the engine oil and filter after the break-in period to remove any initial wear particles. Always consult your engine’s service manual for specific recommendations.

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 .