6BT5.9 Engine Overview
Cummins 6BT5.9 is a 5.9-liter, 6-cylinder, water-cooled diesel
engine with a mechanical direct injection fuel system. Belonging to
the Cummins B series, it is widely known for its simple structure,
ease of maintenance, and high reliability.
It is commonly used in construction machinery, trucks, buses,
generator sets, and agricultural equipment, making it one of the
most popular mid-size diesel engines worldwide.
Key Features & Benefits
Proven Durability: Simple design, highly interchangeable parts, long service life.
Cost-effective: Low maintenance cost and good fuel efficiency.
Powerful Output: Delivers over 200 hp from a 5.9L displacement.
Versatile Applications: Extensively used in trucks, gensets, and construction machinery.
Easy Parts Availability: Widely supported with abundant spare parts worldwide.
Construction Machinery: Excavators, loaders, road rollers
Generator Sets: Diesel gensets from 80–200 kVA
Commercial Vehicles: Trucks, buses
Agricultural Equipment: Large tractors, harvesters
Frequently Asked Questions
Q1: What is your main products?
A1: We specialize in excavator engine spare parts, including main
cylinder blocks, cylinder heads, crankshafts, engine assemblies,
pistons, cylinder liners, piston rings, camshafts, connecting rods,
oil pumps, water pumps, valve series products, and virtually all
components of the entire engine.
Q2: If I only know the excavator model, but can't offer parts
numbers, what should I do?
A2: You can send us pictures of old products, name plates, or
dimensions for reference.
Q3: Can you accept sample orders?
A3: Yes, we can supply samples if we have ready parts in stock,
though customers must cover the sample cost and courier fees.
Q4: Do you test all your goods before delivery?
A4: Yes, we perform 100% testing before delivery to ensure quality.
Q5: What should I do if there's an issue with the items?
A5: Our products undergo professional testing for stable quality.
If issues arise, please contact our professional after-sales team
for resolution.
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