High-Performance 1U3352 Bucket Tooth and Adapter 3G8354 Solutions for Caterpillar Series

The 1U3352 bucket tooth and 3G8354 adapter are among the most classic and widely used Ground Engaging Tool (GET) components in the earthmoving and heavy machinery sectors. They belong to Caterpillar’s ​​classic J-Series (specifically the J350 family) side-pin retention system.

For purchasers within the global supply chain and end-users of the equipment, this combination offers high versatility, ease of replacement, and excellent cost-effectiveness.

1. Core Advantages & Technical Specifications

The 1U3352 is the most common standard-duty bucket tooth used on excavators and loaders, primarily designed for general earthmoving applications. Whether in mining or urban construction, our 1U3352 bucket tooth and 3G8354 adapter combination delivers unparalleled digging power:

1.1. 1U3352 Bucket Tooth:

Precision investment cast from high-strength alloy steel, undergoing advanced heat treatment processes to ensure an extended lifespan in high-friction environments. Its streamlined design effectively reduces digging resistance.

• Profile: Features a standard symmetrical wedge design. This streamlined profile offers excellent penetration and a self-sharpening capability, ensuring consistent cutting efficiency throughout the tooth’s service life.
• Application: Designed for general-duty excavation; best suited for low-to-medium abrasion environments involving soil, clay, gravel, and mixed earth. It is not recommended for high-impact, hard-rock applications (where rock-specific teeth, such as the 1U3352RC, would typically be used).
• Installation: Features an open-rear design that slides directly onto J350 series adapters and is secured via a side pin.

1.2. 3G8354 ADAPTER:

The 3G8354 is a weld-on adapter designed for use with J350 series bucket teeth, serving as the connecting interface between the bucket lip and the tooth. Perfectly matches the 1U3352 to provide secure support and connection. High-precision machining ensures easy installation and operational safety, significantly reducing machine downtime.Structure: Typically a “two-strap” weld-on adapter. Its upper and lower mounting straps straddle the bucket lip, providing a large welding contact area to withstand the immense tearing forces generated during excavation.

• Lip Thickness Compatibility: The 3G8354 is designed to fit specific bucket lip thicknesses (commonly around 40mm or 1.5 inches, though this may vary by batch and tolerance). The precise bevel angle of the opening ensures a perfect fit against the lip, minimizing welding stress.
• Load Transfer: Its nose is precision-engineered to match the internal cavity of J350 teeth (such as the 1U3352), effectively transferring frontal impact forces and bottom friction loads to the bucket body, thereby protecting the bucket from wear.
• Compatibility: Manufactured strictly to top-tier industry standards, it is 100% compatible with Caterpillar series excavator equipment, making it the ideal replacement choice.

1.3. Mating and Locking System (The J-Series System)

The combination of the 1U3352 and 3G8354 relies on Caterpillar’s signature side-pin locking system. A complete assembly requires the following components:

• Pin: Typically model 8E6358. It passes horizontally through the holes in the bucket tooth and the adapter nose.
• Retainer: Typically model 8E6359. It is pre-inserted into the side slot of the adapter; when the pin is driven in, the rubber/steel ring on the retainer firmly engages the pin’s groove, preventing the tooth from detaching during intense vibration.

2. Metallurgy and Manufacturing Processes

In the context of international trade and supply chains, the quality of these components depends directly on the factory’s casting processes and material formulations.

• Manufacturing Process: Investment casting or high-quality water-glass/resin-coated sand casting methods are employed. Investment casting ensures a tight fit between the internal cavity and the tooth adapter nose, minimizing wobble during operation.
• Alloy Material: Low-carbon alloy steels (such as special alloys containing boron or molybdenum) are commonly used to achieve an optimal balance between hardness and toughness.
• Heat Treatment: Components undergo rigorous quenching and tempering processes.
• Bucket Tooth (1U3352): Surface hardness typically ranges from HRC 48 to 52, with slightly lower core hardness to maintain toughness; impact resistance must exceed 18J (at ambient temperature).
• Tooth Adapter (3G8354): Hardness is typically set between HRC 38 and 44. Since the adapter must be welded to the bucket, excessive hardness would compromise weldability and increase the risk of cracking; therefore, fracture toughness and welding performance are prioritized.

3. Specifications for 1U3352 Bucket Tooth and 3G8354 Adapter

4. Your Preferred Global Supply Chain Partner

The 1U3352 bucket tooth and 3G8354 adapter represent the classic GET (Ground Engaging Tool) combination for 20- to 30-ton class excavators, such as the CAT 320 and 325 series. For traders specializing in overseas machinery parts, these models are high-turnover consumables with substantial and steady aftermarket demand. Ensuring precise fitment dimensions and consistent heat treatment quality is key to securing long-term orders from international engineering contractors and procurement managers.

Navigating international trade requires a reliable resource integrator. Based in Ningbo, a major hub for global trade, TrueCast Engineering operates as an expert trader and a premium Bucket Tooth and adapter manufacturer resource platform, dedicated to providing efficient and cost-effective procurement solutions.

Truecast deeply understands the rigorous demands of international procurement managers regarding quality and lead times. We are not just a Supplier; we are your long-term strategic partner in the wear parts sector.

• Flexible OEM Services: Whether you need standard Caterpillar-SERIES replacement parts or white-label production, our OEM division provides full-cycle support from mold development to final product delivery.
• In-Depth Custom Capabilities: For specific hard rock or highly abrasive conditions, we offer highly tailored Custom metallurgical formulas and secondary CNC machining services based on your drawings or samples, meeting your exact engineering requirements.