252500317 pin for XCMG ZL50G/ZL50GL Wheel Loader

product parameters

Product Name: Locking Pin for Bucket Tooth Sleeve
Part No.: 252500317
Applicable Model: XCMG ZL50G, ZL50GL Wheel Loader
Matching Parts: Mining bucket tooth and tooth sleeve
Material: High-strength alloy steel (quenched and tempered)
Matching parts: Cotter pin
Installation: Pass through pin holes of tooth and sleeve, locked with cotter pin
Working Condition: Quarry, hard rock digging, crushed stone handling, crusher feeding
Inspection Items: Diameter inspection, straightness inspection, surface crack inspection

Applicable Scenarios

It matches 2.5m³ and 2.7m³ mining rock buckets for XCMG ZL50G and ZL50GL, widely used in quarry and crusher feeding. It is assembled with bucket tooth and sleeve to lock the sleeve under repeated impact. Earth and light-material buckets usually do not adopt this heavy-duty pin.

- OEM precision machining, diameter, length and cotter hole position follow original drawing. Perfect fit for easy assembly without grinding
- Tempered alloy steel balances toughness and shear resistance, resisting bending and fracture under cyclic quarry impact with stable service life
- Standard end hole for cotter pin provides double anti-loosening protection, preventing pin withdrawal and sleeve loss
- Smooth surface finish reduces scratching of hole wall, lowers the risk of seizure and makes later disassembly easier
- Low-cost replaceable part. Only the worn pin needs replacement instead of the whole tooth assembly
- Fully compatible with tooth sleeves, bucket teeth and edge protection parts for convenient stock management
- Strict factory inspection rejects bent, cracked or out-of-tolerance parts for stable locking and low failure ratec

FAQ 

Q：Can this pin fit bucket teeth of other models or brands?
A：No. Diameter, length and hole position are custom specifications. Mismatch will cause jamming and locking failure.

Q：Can slightly scored pin stay in service?
A：Minor scratches can be monitored. Replace immediately if thinned, dented or bent, or it may shear and cause sleeve loss.

Q：Why does the pin slide out easily?
A：Missing cotter pin, improperly opened cotter pin, worn pin or deformed hole. Always spread cotter pin legs after installation and check daily.

Q：What if the pin seizes due to rust?
A：Apply rust remover and tap gently with copper rod. Do not heat by welding torch, which will damage heat treatment strength.

Q：What to check when receiving goods?
A：Verify part number, check bending, cracks and dents, measure diameter and test fit with tooth and sleeve.

Q：Which is replaced more often: pin, sleeve or tooth?
A：Tooth sleeve wears fastest. The pin has a much longer service life, usually lasting for multiple sets of sleeves.

Q：What happens without pin or cotter pin?
A：Vibration will shake off the sleeve quickly, leading to expensive damage to bucket tooth.