Notes:
Due to design variations and product updates, the specifications listed are for reference purposes only. For real-time technical data and confirmed fitment for your specific bucket edge, please contact our technical support team.
Technical Specifications:
- Fits Brand: Caterpillar (CAT)
- Series: J550 System
- Compatible Models: E345, E345B, E345C, E345D, E349, E350, 988, 990
- Material: 40Cr / High-Spec Alloy Steel
- Hardware Included: Optional Pin (2.6cm x 16.2cm) and Retainer
Comparison Table & Variants:
| Tooth Style | Part Number (Ref) | Length | Weight | Ideal Application |
|---|---|---|---|---|
| Standard Rock Tooth | 9W8552RC | 38.5 cm | 17.2 KG | Limestone, Abrasive Rock |
| Heavy Duty Rock | 9W8552RC-HD | 40.0 cm | 20.0 KG | Hard Granite, Mining |
| Frost / Ice Tooth | 9W8552 | 43.5 cm | 15.2 KG | Frozen Soil, Shale |
| HD Penetrator/Tiger | 9W8552TL-1 | 48.5 cm | 17.0 KG | High-Impact Penetration |
Operational Recommendations:
Rock Chisel (RC): Best used in high-abrasion environments where material fragmentation is required. The self-sharpening design ensures consistent penetration.
Ice/Frost (TL): Designed with a sharper profile to break through frozen surfaces or tightly compacted clay where standard teeth might skid.
Hardware & Accessories:
- Adapter: J550 Cast Weld-on Adapter (Fits 50mm-60mm Lip Thickness).
- Locking Pin: 132-4766 / 6Y8558 (2.6cm x 16.2cm).
- Retainer: 8E5559 / 3G9549.









