1U3552RCU

The 1U3552RCU is a Caterpillar-compatible standard bucket tooth from the J550 series — CAT's high-capacity tooth system designed for mining-class excavators where tooth life and digging performance directly impact production costs. Manufactured as a premium aftermarket replacement by AzuLong Wear Parts, it is designed for mining-class excavators handling the heaviest digging loads.

Standard Profile — Application & Performance

The standard profile provides optimal balance between penetration and wear resistance. It is the most versatile tooth design for everyday excavation work, handling mixed soil conditions including topsoil, clay, and loose gravel. The profile geometry is optimized for self-sharpening wear — as the tooth wears down, it maintains a relatively sharp digging edge rather than going blunt.

Material & Durability

At 22.56 kg, this tooth 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