An essential base for bucket teeth – a high-quality center weld-on adapter, compatible with the popular CATERPILLAR J400 system. It is designed to be welded onto a (approx. 46.5 mm) thick cutting edge. Made from high-grade cast steel, it is resistant to cracking and impact, providing a durable and solid mount for J400 teeth. This is a critical structural component that transfers digging forces from the bucket to the tooth.
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| Brand | Type / Series / Model |
|---|---|
| CATERPILLAR (CAT) | Excavators: 231D, 320B, 320B L, 320B N, 320B S, 320C Wheel Loaders: 980G, 980G II, 980H, 980K |
| Other Brands | Any machine (JCB, Komatsu, Case, Bobcat, Kubota, John Deere, ESCO, Hensley, H&L) with a 1.75" (44.5mm) lip and J400 tooth system. |
The list above is for reference. It is crucial to verify the tooth system (J400) and lip thickness (1.75" / 44.5 mm).
Adapter installation requires welding. Welding work on structural attachments should only be performed by a certified welder, following proper procedures (pre-heating, correct welding consumables) to prevent cracks and ensure the full strength of the joint.
The adapter is the base that mounts the tooth to the bucket's cutting edge. It is a critical component that transfers the entire digging force from the bucket to the tooth. Damage or wear makes work impossible and leads to lost teeth.
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J400 is the size designation for a popular CATERPILLAR tooth system. It is a common system used by many manufacturers (CAT, JCB, Komatsu) on excavators and loaders in the approx. 30-40 ton operating weight class.
2. Will a J300 tooth fit this adapter?No. The CAT J-Series tooth systems are not interchangeable between sizes. This J400 adapter will only fit J400 teeth (e.g., 7T3402) and requires J400 hardware (7T3408/8E8409).
3. Why must I pre-heat the adapter before welding?Adapters are made of cast steel with a high carbon content, which gives them hardness but makes them susceptible to cracking during welding. Pre-heating slows down the cooling process of the weld, reduces stress, and prevents the formation of brittle structures in the metal, which is crucial for the joint's durability.
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