6I6554W

The 6I6554W is a Caterpillar-compatible J550 series mounting adapter manufactured by AzuLong Wear Parts. This adapter provides the critical connection between the bucket lip and replaceable tooth points on mining-class excavators handling the heaviest digging loads.

Adapter Profile — Application & Performance

Precision-engineered mounting adapter that provides a secure mechanical connection between the bucket lip and replaceable tooth points. Machined to tight tolerances for reliable fit and quick tooth changes in the field. The adapter absorbs the transition forces between the rigid bucket structure and the replaceable wear point.

Material & Durability

At 29.2 kg, this adapter is built for 50-80 ton class equipment. This heavy-duty tooth is forged from heat-treated alloy steel and finished to HRC 48-58, with the higher hardness range available for demanding rock and mining applications. The increased cross-section provides greater resistance to the bending loads that occur during heavy ripping and prying operations. The heat treatment process is tightly controlled to prevent internal stresses that could cause premature failure under shock loading.

Equipment Compatibility

Compatible with: CAT 365, CAT 374, CAT 385, CAT 390. Always verify tooth-to-adapter fitment for your specific machine configuration before ordering. AzuLong's technical team can assist with compatibility confirmation — contact rocky@azulong.com or WhatsApp +86-13777046128.

• CAT 365
• CAT 374
• CAT 385
• CAT 390