Crankshaft Pulley Description
The Pulley (Part No. YNF16727 | Komatsu No. 6150-31-1560) is a crankshaft-driven belt pulley used to power essential components such as the alternator, water pump, and cooling fan in Komatsu diesel engines. It is typically mounted on the crankshaft nose and designed to deliver rotational energy through belts under varying engine loads. YNF Machinery’s version features high-strength casting, CNC machining, and dynamic balancing to ensure belt tracking accuracy, reduced vibration, and long-term reliability. This Komatsu engine pulley is trusted by engine rebuilders, machinery workshops, and B2B component distributors.
6150-31-1560 Pulley Technical Sheet
| Parameter |
Value |
| Part Name |
Crankshaft Pulley / 曲轴皮带轮 |
| Part No. |
6150-31-1560 |
| YNF No. |
YNF16727 |
| Application Area |
Engine Belt Drive System |
| Function |
Transmits crankshaft rotation to belt-driven systems |
| Compatible Models |
Komatsu 6D125, D155AX-5, D275A, WA600, etc. |
| Material |
Cast Iron / Forged Steel |
| Surface Treatment |
Black Oxide or Anti-Rust Coating |
| Brand |
YNF |
| Country of Origin |
China |
| MOQ |
1 Piece |
| Shipping Method |
Express / Air / Sea |
| Payment Terms |
T/T, Western Union |
Crank Pulley Applications
| Application Type |
Description |
| Diesel Engine Assemblies |
Drives fan, alternator, and water pump via belt |
| Komatsu Engine Rebuild |
Replacement for worn/damaged crankshaft pulley |
| Construction Equipment |
Used in Komatsu dozers, loaders, and large excavators |
| Engine Spare Part Sales |
High-demand component in B2B repair and supply chains |
| OEM-Alternative Maintenance |
Suitable for engine overhaul and service workshops |
6150-31-1560 Pulley Detail Display
Why Replace the Crankshaft Pulley?
The crankshaft pulley plays a key role in driving auxiliary systems like cooling and charging. If cracked, misaligned, or worn, it can cause belt slippage, engine noise, or even total belt failure. YNF’s YNF16727 pulley for Komatsu engine 6D125 (6150-31-1560) ensures precise belt motion and long-term performance in diesel-powered construction equipment.
Related Products:
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Komatsu Fan Belt
-
Water Pump Assembly for D155A
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Alternator Brackets and Tensioners
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Belt Tension Pulley
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Engine Gasket Kits for 6D125
FAQs:
-
Is this compatible with WA600 or D275A models?
Yes, if they use Komatsu engine 6D125. Confirm with your serial number.
-
Does the pulley come balanced?
Yes, all units are dynamically balanced before shipping.
