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3G8354 Weld-On Bucket Tooth Adapter fit CAT J350 Style G.E.T.
- Heavy-duty 3G8354 weld-on bucket tooth adapter for Caterpillar J350 series buckets.
- Engineered for severe digging conditions.
- Designed with a two-strap profile, this adapter fits securely onto excavator and loader bucket cutting edges
- Precision-cast alloy steel designed for maximum wear resistance and impact strength.
1. Applications & Equipment Compatibility
The 3G8354 Weld-On Bucket Tooth Adapter is designed for heavy-duty earthmoving, trenching, quarrying, and demolition operations.
- Compatible Equipment Types: Excavators, Wheel Loaders, Backhoe Loaders, and Mining Shovels.
- Machine Models: Caterpillar 215, 224, 225, 229, 318, 320, 322, 323, 325, 330, 950, 960, 962, 966 series, and equivalent aftermarket excavator buckets.

2. Key Features
- High-Strength Profile: Low-profile two-strap design reduces digging drag while maximizing bucket penetration.
- Impact & Wear Resistance: Formulated from high-tensile alloy steel to prevent fracture and high-stress deformation in rocky soils.
- Direct OEM Compatibility: Manufactured to standard J350 dimensions, ensuring seamless compatibility with CAT-style teeth and pins.
3. Compatible Accessories & Hardware
- Matching Bucket Teeth: Fits standard J350 series tooth tips, including 1U3352 (Standard Long Tip), 1U3352RC (Rock Chisel), and 1U3352W (Twin Tiger).
- Locking Pin: Part # 8E6358 / 1140358 (Slotted Side Pin).
- Pin Retainer: Part # 8E6359 / 1140359 (Heavy-Duty Rubber Sleeve Retainer).
4. Technical Specifications
| Parameter | Specification |
| Product Name | OEM Custom 3G8354 Weld-on Bucket Tooth Adapter |
| Application | Fit for CAT J-Series (J350) |
| Mounting Style | Two-Strap Center Weld-On |
| Lip Thickness Fit | 1.50 in – 1.75 in (38 mm – 45 mm) |
| Standard Weight | Approx. 20 – 21.4 lbs (9.1 – 9.7 kg) |
| Locking System | Side Pin & Retainer |
| Hardness Rating | 46 – 52 HRC |

5. Manufacturing Process
- Precision Casting: Produced using high-grade low-alloy steel via investment/lost-wax casting or automated sand casting methods to deliver uniform density and clean fitment tolerances.
- Heat Treatment: Full quenched and tempered thermal treatment achieves deep core hardness (46–52 HRC), balancing high tensile strength with fracture toughness.
- Quality Assurance: 100% inspected for dimensional tolerance, hardness integrity, and surface defect prevention.
6. Installation & Usage Guidelines
6.1 Surface Preparation: Clean the bucket cutting lip thoroughly using a wire wheel or grinder to remove rust, oil, paint, and old weld residue.
6.2 Alignment: Position the 3G8354 adapter centrally over the bucket edge, ensuring the bevel gap seats flush against the cutting lip.
6.3 Preheating: Preheat the carbon-steel cutting edge and adapter contact zone to approximately 300°F–400°F (150°C–200°C) to prevent cracking during welding.
6.4 Welding:
- Use low-hydrogen electrodes (e.g., AWS E7018) or flux-cored wire (E71T-1).
- Apply multipass welds along both the top and bottom straps, ensuring complete joint penetration.
- Do not weld near the pin hole openings to avoid distortion.
6.5 Post-Weld Cooling: Allow the weld joint to cool slowly under ambient temperature or insulating blanket to release residual stresses.
6.6 Tooth Fitting: Insert the J350 tooth tip, insert the rubber retainer ring into the adapter recess, and drive the slotted pin through from the side until fully seated.
7. Common Industry FAQs
Q1: What bucket lip thickness does the 3G8354 adapter fit?
A: It is designed primarily for cutting edges measuring 1.5 inches to 1.75 inches thick.
Q2: Does this adapter come with the pin and retainer?
A: Hardware configurations vary by listing package; check product options to order the adapter individually or as a complete kit with pin 8E6358 and retainer 8E6359.
Q3: Can this adapter be welded onto non-Caterpillar buckets?
A: Yes. As long as the cutting lip thickness and profile match (1.5″–1.75″ edge thickness), the 3G8354 adapter can be welded onto any brand of excavator or loader bucket.
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