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Premium OEM Diesel Engine Parts
Trusted Worldwide

China's leading supplier of high-performance diesel engine pistons, piston rings, cylinder liners, fuel injectors, turbochargers, and heavy machinery components. ISO-certified, OEM-standard, built to last.

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About OEM Parts Suppliers

Beijing Silk Road Enterprise Management Services Co., Ltd. operates as a self-managed mechanical parts supplier specializing in OEM-grade diesel engine components and heavy machinery spare parts.

We serve global clients with precision-engineered parts compatible with Cummins, Komatsu, Yanmar, Mitsubishi, Hino, Detroit, Isuzu, Hyundai, Perkins/MF, RVI, Scania, and more. Our components are manufactured using advanced materials including eutectic alloys, forged steel, and high-grade stainless steel.

37+
Piston Ring Models
18+
Piston Variants
ISO 9001
Quality Certified
120+
Global Clients
Diesel Engine Piston Close-Up

Our Top Products

Precision-engineered diesel engine components and machinery spares built for durability, performance, and compatibility with major OEM systems.

Cummins Engine Block

Cummins 6BT5.9 Engine Block

Part #3928797 | 6-Cylinder | OEM Standard

  • • Professional-grade casting
  • • Compatible with DCEC systems
  • • TS16949 certified
Diesel Engine Piston

Alloy Diesel Engine Piston

Generator Sets | Large Stock

  • • Stable performance under load
  • • For 4BT/6BT Cummins
  • • Long service life
Steel Washers

Stainless Steel Flat Washers

316 SS | 2" Thick | USS 5/16

  • • Anti-corrosion
  • • Precision thickness 0.005–3.00mm
  • • Heavy-duty applications
Tricycle Piston

Un-Rusty Oil Diesel Piston

For Tricycle YM28 & Generator Sets

  • • Anti-rust coating
  • • Optimized for small engines
  • • High thermal resistance
Cummins Piston

Cummins Engine Piston 3907156

4BT / 6BT | Aftermarket

  • • 1.8kg weight
  • • OEM-compatible design
  • • Long using life
Cylinder Liner

6CT Cummins Cylinder Liner

119mm Wet Sleeve | 3802407

  • • Cast iron construction
  • • Precision bore tolerance
  • • TS16969 approved
Fuel Injector Nozzle

Bosch Common Rail Nozzle

0445110064 | DLLA150P1011

  • • Smallest tolerance
  • • High-pressure diesel
  • • Marine & automotive use
Komatsu Turbocharger

Komatsu PC200-8 Turbocharger

Part #4037469 | OEM Standard

  • • For excavator diesel engines
  • • High-efficiency airflow
  • • Durable turbine housing
View All 180+ Products

Why Choose OEM Parts Suppliers?

ISO Certified

TS16949 and TS16969 approvals ensure every component meets international quality standards.

OEM Compatibility

Parts engineered to match Cummins, Komatsu, Yanmar, Mitsubishi, and other major OEM specifications.

Global Shipping

Fast dispatch from China with reliable logistics partners to North America, Europe, Africa, and Asia.

Multilingual Support

Sales and technical support in English, Spanish, Russian, French, German, Italian, Portuguese, and Japanese.

12+
Years Experience
180+
Product Models
50+
Countries Served
99.3%
Customer Satisfaction

Frequently Asked Questions

Are your parts genuine OEM or aftermarket?

We supply both genuine OEM parts and high-quality aftermarket equivalents that meet or exceed OEM specifications. All parts are clearly labeled as OEM or aftermarket.

Do you offer bulk pricing for large orders?

Yes, we provide competitive wholesale pricing and volume discounts for distributors and large-scale buyers. Contact us for a custom quote.

What is your warranty policy?

Most engine components come with a 12-month warranty against manufacturing defects. Specific warranty terms vary by product and are provided with your order.

Can you manufacture custom parts?

Yes, we offer OEM/ODM services and can produce custom-engineered parts based on your drawings or samples. Contact our engineering team for details.

Get in Touch

Need a quote, technical specification, or product recommendation? Our multilingual team is ready to assist.

Visit Official Website

Beijing Silk Road Enterprise Management Services Co., Ltd.
Self-Operated Station B (Mechanical Parts)

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