9N4302 Bucket Tooth HD Long Tip Caterpillar Style

1. 9N4302 Heavy-Duty Long Bucket Tooth (CAT J300 Series)

When the job site demands unyielding digging power, the 9N4302 Bucket Tooth delivers.
Engineered specifically for Caterpillar (CAT) J300 series ground-engaging equipment, this heavy-duty, long-style dirt tooth is built to penetrate hard terrain, extend bucket life, and minimize machine downtime.
Whether you are outfitting a single bucket or stocking up your fleet’s maintenance bay, the 9N4302 provides OEM-level performance for the most demanding excavation projects.

2. Key Features

• Long-Style Profile: Designed with an extended profile for superior penetration and efficient material loading in packed dirt, clay, and gravel.
• Maximum Wear Life: Built with added material in high-wear areas to ensure longevity and reduce the frequency of change-outs.
• Seamless J300 Integration: Precision-engineered pocket guarantees a tight, rattle-free fit on standard CAT J300 series adapters.

3. Detailed Specifications

4. Manufacturing Process

The 9N4302 Long Bucket Tooth is forged and cast from premium, high-carbon steel.
To withstand high-impact shocks and severe abrasion, each tooth undergoes a rigorous heat-treating and tempering process. This specialized thermal treatment aligns the steel’s molecular structure, resulting in a hardened outer shell for wear resistance and a ductile core that absorbs heavy impacts without snapping.

5. Common Applications

This versatile ground-engaging tool is standard equipment on mid-sized excavators, backhoes, and wheel loaders operating in:

• General construction and trenching
• Landscaping and site preparation
• Utility work in heavily compacted soils
• Light quarrying and gravel extraction

6. Required Accessories & Hardware

To securely mount the 9N4302 to your bucket adapter, specific side-pin hardware is required.

1. Locking Pin: Requires the 9J2308 standard pin.
2. Retainer: Requires the 8E6259 sleeved retainer.

Note: Using incorrect hardware can result in tooth loss during operation and damage to the welded adapter shank.

7. Important Considerations for Buyers

1. Verify Your Adapter: The 9N4302 will only fit J300 series adapters. Verify your current adapter size (usually cast into the shank) or measure your existing pin and pocket before purchasing.
2. Hardware Inclusion: When sourcing replacements online, check if you are buying a Hardware Assembly (which includes the tooth, the 9J2308 pin, and the 8E6259 retainer) or a Bare Tooth. If your current pins are worn or bent, upgrading to a full assembly is highly recommended to prevent premature failure.
3. Bulk vs. Single: For large fleets or ongoing heavy use, purchasing 9N4302 teeth in bulk pallets often reduces freight costs and ensures you are never sidelined by a lost tooth.

8. Frequently Asked Questions (FAQs)

Q1: Will the 9N4302 fit my non-CAT excavator?
A: Yes, as long as your bucket is equipped with CAT J300 series adapters. The J-series is an industry-standard side-pin system used by many aftermarket bucket manufacturers, regardless of the machine’s brand.

Q2: What is the difference between a “Standard” and a “Long” style tooth?
A: A long-style tooth, like the 9N4302, extends further out than a standard tooth, providing better initial ground penetration. It is ideal for general-purpose digging, whereas standard or heavy-duty rock teeth are shorter and blunter for high-impact prying.

Q3: How often do I need to replace the pin and retainer?
A: It is a best practice to replace the 9J2308 pin and 8E6259 retainer every time you replace the tooth. The rubber in the retainer degrades over time, and reusing old hardware significantly increases the risk of the tooth vibrating loose.