The YNF16931 Crankshaft Pulley is a high-quality replacement component designed for ZAX120 excavators equipped with 4BG1 engines. This 3-groove crankshaft belt pulley ensures stable power transmission from the crankshaft to auxiliary systems such as the alternator, water pump, and fan. Manufactured from high-strength materials with precise machining, it delivers excellent durability, balance, and reliable performance under heavy-duty operating conditions.

• Part No.: YNF16931

• Compatible Models: ZAX120 with 4BG1 engine

• Type: Crankshaft Pulley / Crankshaft Belt Pulley

• Groove Type: 3-groove design

• High-strength, wear-resistant construction

• Ensures stable belt alignment and smooth power transmission

• Reduces vibration and belt wear

• OEM-equivalent design for direct replacement

• Long service life in demanding environments

• Crankshaft drive system for ZAX120 excavators

• Power transmission to engine auxiliary components

• Engine maintenance and repair

• Replacement of worn or damaged crankshaft pulleys

• Construction machinery and heavy equipment

• Compatibility verification for your engine and machine

• Technical guidance for installation and belt alignment

• Supply of related pulleys, belts, and engine components

• OEM-equivalent and aftermarket replacement solutions

• Individually packed with protective materials

• Anti-rust treatment for extended storage

• Export-grade cartons or wooden cases for bulk orders

• Suitable for express, air, or sea shipping

Q: Is this pulley compatible with all 4BG1 engines?
A: It is designed for 4BG1 engines used in ZAX120 models. Please provide your engine details for confirmation.

Q: How many belt grooves does this pulley have?
A: This is a 3-groove crankshaft pulley.

Q: Does it require modification for installation?
A: No, it is OEM-equivalent and designed for direct replacement.

Q: Can you supply matching belts?
A: Yes, we can also supply compatible belts and related engine parts.