8E5308 J300 Corner Bucket Teeth Adapter for CAT-Style Replacement

1. 8E5308 Corner Bucket Teeth Adapter Technical Specifications 

WHEEL LOADER 938G I1 950F 950F 1 950G 950G 11 950H 960F 962G 962G 1 962H 966G 966H 972G 972H CaterpilarCaterpillar style let hand, bolt on loader adapter for a J300 series with a i" -1 1/4" lip thickness; takes 2 - 125 x 450 bolts and 2 - 125 cone nuts.

2. Key Advantages

2.1 Maximum Wear Resistance for Tough Environments

The 8E5308 J300 corner adapter is a critical Ground Engaging Tool (G.E.T.) component designed to protect your bucket's corners from extreme wear and tear. Cast from high-quality alloy steel, it offers an optimal balance of hardness and impact toughness, making it highly effective in abrasive conditions like quarrying, mining, and heavy construction.

2.2 Advanced Manufacturing: Lost-Wax Casting Meets CNC Precision

Quality begins at the structural level. Instead of standard sand casting, this adapter is produced using a rigorous lost-wax casting method, ensuring a dense, defect-free internal structure.

While the casting process provides the rugged foundation, we take it a step further. The critical fitment areas—specifically the pin and retainer holes—undergo precision CNC secondary machining. This guarantees exacting tolerances. For equipment operators and procurement teams, this means a perfect, snug fit every time, eliminating the "wobble" that leads to premature wear and part failure.

2.3 Direct Replacement: 

100% interchangeable with OEM CAT J300 series parts.

2.4 Extended Lifespan: 

Heat-treated to 48-52 HRC to withstand severe impact and abrasion.

2.5 Reduced Downtime: 

CNC-machined interfaces ensure fast, trouble-free installation in the field.

2.6 Global Supply Chain: 

Manufactured and shipped directly from our facilities near Ningbo port, ensuring efficient and cost-effective global logistics for bulk orders.

3. Complete Your G.E.T. System: J300 Series Compatible Products

To maximize the wear life and digging efficiency of your excavator or loader, the 8E5308 Corner Adapter should be paired with perfectly matched J300 series bucket teeth, fasteners, and center adapters. Sourcing a complete set ensures uniform wear, prevents premature failure, and reduces maintenance downtime.

3.1. J300 Series Bucket Teeth

We offer a variety of J300 bucket teeth profiles designed to tackle different ground conditions, all engineered to fit seamlessly with your 8E5308 corner adapter.

3.2. Pins and Retainers

The integrity of your G.E.T. system relies on secure fastening. Our J300 locking hardware is manufactured to exact OEM specifications to prevent tooth loss during high-impact operations.

• 9J2308 Pin: Forged from high-strength steel to withstand extreme shear forces.

• 8E6259 Retainer (Lock): Heavy-duty synthetic rubber and steel construction ensures the pin stays securely in place, even in high-vibration environments.

• The Perfect Match: Because our 8E5308 adapter pin holes are precision CNC-machined, these standard pins glide in smoothly during installation while holding securely during operation.

3.3. J300 Center Adapters

For a complete bucket rebuild, pair your corner adapters with our J300 center adapters.

Configuration Note: A standard excavator bucket typically requires one Right Corner Adapter (8E5308), one Left Corner Adapter (8E5307), and multiple Center Adapters (8E5309) depending on the bucket width.

4. Why Source the Complete J300 Assembly From Us?

• Consolidated Shipping: Reduce logistics costs by sourcing your entire G.E.T. inventory from a single, reliable manufacturer.

• Guaranteed Compatibility: Buying adapters, teeth, and hardware from the same foundry guarantees that all components are engineered with identical tolerances.

• Consistent Quality: Every part in your order goes through the same rigorous ISO-certified quality control and metallurgical testing.