
Product Overview
This professional-grade Cummins 6BT 5.9L long block engine is engineered for heavy-duty industrial and marine applications. As a leading global supplier, we provide direct shipping to major markets worldwide, including North America, Europe, the Asia-Pacific region, and the Middle East, ensuring reliable parts supply for your critical equipment rebuilds and replacements.
Key Features & Benefits
- Premium Core Construction: Manufactured to exacting tolerances using high-grade materials for maximum durability and extended service life under demanding conditions.
- Complete Long Block Assembly: Supplied as a fully assembled core, including the cylinder block, crankshaft, connecting rods, pistons, and cylinder head, reducing assembly time and complexity.
- Optimized for Performance: Designed to restore factory power, torque, and fuel efficiency, ensuring your excavator or marine vessel operates at peak performance.
- Global Interchangeability: Built to original specifications for seamless fitment with a wide range of equipment using the renowned Cummins 6B series platform.
- Rigorous Quality Control: Each unit undergoes stringent testing and inspection protocols to guarantee reliability and performance before shipment.
Technical Specifications
| Specification | Detail |
|---|---|
| Engine Model | Cummins 6BT / 6D102 |
| Engine Type | Inline 6-Cylinder, Turbocharged Diesel |
| Displacement | 5.9 Liters (5900 cc) |
| Configuration | Bare Long Block (Block, Head, Internals) |
| Core Material | High-Strength Cast Iron Block & Head |
| Aspiration | Turbocharged |
| Fuel System | Mechanical In-Line Pump (External components not included) |
OEM Cross-Reference
This long block is a direct replacement for engines bearing the following OEM and common industry part numbers:
- Cummins Part Number: 6BT, 6BTA5.9
- Common Reference: 6D102
Note: Always verify the specific engine serial number and application details for final confirmation of compatibility.
Compatibility
This Cummins 6BT 5.9L long block is designed for a wide range of industrial and marine equipment, including but not limited to:
- Excavators: Komatsu, Hitachi, Caterpillar, and other major brands utilizing Cummins power units.
- Marine Applications: Inboard diesel engines for workboats, fishing vessels, and small commercial craft.
- Industrial Power Units: Generators, pumps, and other stationary equipment.
Global Supply & Distribution
We specialize in the international export of heavy-duty engine components. Our streamlined logistics network ensures efficient delivery to key industrial hubs and ports globally.
- Primary Markets Served: USA, Canada, UK, Germany, Australia, UAE, Saudi Arabia, Singapore, and Japan.
- Shipping: We arrange cost-effective and reliable sea freight (FOB, CIF) and air freight options to meet your project timelines.
- Export Compliance: All shipments are prepared with complete and accurate commercial documentation (Packing List, Commercial Invoice, Certificate of Origin) for smooth customs clearance worldwide.
Quality Assurance
Our commitment to quality ensures you receive a component that meets the highest standards for performance and reliability.
- Manufacturing Standard: Produced to meet or exceed original Cummins engineering specifications.
- Inspection: Each long block is visually inspected, measured for critical tolerances, and undergoes a pressure test.
- Warranty: Backed by a standard 12-month warranty against manufacturing defects, providing peace of mind for your investment.
FAQ
Q: Is this a complete drop-in engine, or are additional components required?
A: This is a bare long block. It includes the core engine assembly (block, crankshaft, pistons, rods, cylinder head, camshaft, and valve train). You will need to transfer all external components from your old engine, such as the fuel injection pump, turbocharger, manifolds, oil pan, front/rear covers, and all accessories (alternator, starter, etc.).
Q: How do I confirm this engine will fit my specific excavator model?
A: Compatibility is primarily determined by the original engine model. Confirm that your equipment was originally powered by a Cummins 6BT, 6BTA5.9, or 6D102 engine. The most reliable method is to match the engine serial number (ESN) and consult your equipment’s service manual or a Cummins distributor for final verification before purchase.
Q: What is the lead time for delivery to [Europe/North America/Asia]?
A: Lead times vary by destination. Typically, sea freight to major ports in North America or Europe takes approximately 25-35 days from shipment. Air freight options are available for urgent requirements, with delivery in 5-10 business days. Contact our sales team with your destination port or city for a precise shipping quote and timeline.
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 .