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The 101211-2990 is a Denso alternator model, commonly found in the starter/generator series. It's primarily used in small diesel engines, such as those found in the power systems of light equipment from Yanmar, Kubota, Hitachi Construction Machinery, and Isuzu.
Features and Benefits
Compact design – Suitable for small diesel engine compartments with limited space.
Stable 55A output – suffices for the electrical systems of small construction equipment.
Built-in regulator – Simplifies wiring and provides high reliability.
Widely compatible—interchangeable with alternative models such as 101211-2991 and 101211-2992.
Applications
Small excavators
Small construction machinery
Generators
Industrial equipment, compactors, agricultural machinery, etc.
Frequently Asked Questions
What products do you specialize in?
We specialize in excavator engine spare parts including cylinder blocks, cylinder heads, crankshafts, complete engine assemblies, pistons, liners, rings, camshafts, connecting rods, oil pumps, water pumps, valves, and all related engine components.
What if I only know the excavator model but not the part numbers?
You can send us photos of your existing parts, nameplate information, or dimensional specifications for reference and identification.
Do you accept sample orders?
Yes, we can supply samples of parts we have in stock. Customers are responsible for sample costs and shipping fees.
Do you test products before shipment?
All products undergo 100% quality testing before delivery to ensure performance and reliability.
What is your policy for defective items?
Our products are thoroughly tested, but if any issues arise, our professional after-sales team will promptly address and resolve them.
