400/F0343 LHS Bucket Side Cutter – Replaces JCB 332/C4389

The 400/F0343 LHS bucket side cutter is an aftermarket replacement for selected JCB-compatible backhoe-loader and mini-excavator buckets. It is commonly used in place of legacy references 333/D8456 and 332/C4389. JCB parts records also associate the earlier 531/03209 reference with this left-hand side-cutter position.

The asymmetric bolt-on design protects the side edge of the bucket while helping the bucket cut through compacted soil and mixed material. Its extended Shark-style profile provides additional wear material at the bucket corner and supports effective side penetration during excavation and trenching.

This product is the LHS component according to JCB’s designation. The commonly paired opposite-side component is 400/F0345, associated with legacy references 333/D8457 and 332/C4390.

Fastener arrangements may vary between legacy and current bucket configurations. Before ordering, buyers should verify the existing part number, cutting-edge thickness, lower bolt spacing, top mounting point and overall side-cutter geometry. Machine model alone is not sufficient to confirm fitment.

This is an aftermarket replacement product. JCB and all related part numbers are used solely for identification and compatibility reference.

Features

• Aftermarket replacement for current reference 400/F0343

• Replaces legacy 333/D8456 and 332/C4389 references

• LHS side cutter according to JCB product designation

• Asymmetric extended profile for bucket-side protection

• Supports side penetration in soil and mixed materials

• Bolt-on design for replaceable field maintenance

• Reinforced Shark/Supertooth-style profile

• Suitable for selected backhoe-loader and mini-excavator buckets

• Custom coating, marking and export packaging available

Applications

Recommended for:

• Bucket corner and side-edge protection

• General earthmoving

• Utility trenching

• Mixed-soil excavation

• Site preparation

• Landscaping

• Backhoe-loader digging buckets

• Compatible mini-excavator buckets

• Applications requiring additional side penetration and wear protection