Caterpillar 3204 Engine Connecting Rod Bearing 1N3821 | OEM Standard B2B Parts

Product Details

Product Overview

This high-quality Connecting Rod Bearing (Part Number: 1N3821) is specifically engineered for the Caterpillar 3204 diesel engine. As a critical component in the engine’s rotating assembly, this bearing ensures optimal clearance and oil film support between the connecting rod and the crankshaft. Sourced from a leading manufacturer with a robust global supply chain, this part is available for immediate shipment to major industrial markets worldwide, including North America, Europe, the Middle East, and the Asia-Pacific region.

Key Features & Benefits

• Precision Engineered: Manufactured to meet or exceed OEM specifications for exact fitment and reliable performance in the Cat 3204 engine.
• Superior Wear Resistance: Constructed from high-strength steel with a specialized aluminum or copper-lead lining to withstand high loads and reduce friction.
• Enhanced Durability: Designed to handle extreme operating temperatures and pressures, extending the service life of the engine.
• OEM Standard Quality: Provides a direct replacement for the original Caterpillar part (1N3821), ensuring consistent engine performance.
• Cost-Effective Solution: Offers a reliable alternative to genuine OEM parts without compromising on quality or longevity.

Technical Specifications

OEM Cross-Reference

This connecting rod bearing is a direct replacement for the following genuine OEM part numbers:

• Caterpillar OEM: 1N3821
• Cross References: 8N-7001, 9N-4030 (verify compatibility with specific engine serial number)

Compatibility

• Primary Engine: Caterpillar 3204 (4-cylinder naturally aspirated and turbocharged variants)
• Common Applications:
  • Caterpillar 416, 426, 428, 436 Backhoe Loaders
  • Caterpillar 910, 920, 930 Wheel Loaders
  • Caterpillar D3, D4, D5 Track-Type Tractors
  • Caterpillar PS-150, PS-180 Paving Equipment
  • Industrial and agricultural machinery powered by the 3204 engine
• Note: Always verify your engine’s serial number to ensure correct bearing size (standard or undersize) before purchase.

Global Supply & Distribution

We are a reliable B2B supplier with a strong international logistics network. We serve a diverse range of clients, from small repair shops to large fleet operators and dealerships.

• Worldwide Shipping: We ship via sea freight (FCL/LCL), air freight, and express couriers (DHL, FedEx, UPS, TNT) to meet your delivery timelines.
• Major Markets: North America (USA, Canada, Mexico), Europe (Germany, UK, Netherlands, France), Middle East (UAE, Saudi Arabia), Asia-Pacific (Australia, Singapore), and Africa.
• Fast Delivery: Stock items are dispatched within 24-48 hours. Bulk orders shipped to major ports like Houston, Rotterdam, Shanghai, and Jebel Ali.
• Trade Compliance: Experienced in international documentation, customs clearance, and export formalities.

Quality Assurance

• Manufacturing Standard: ISO 9001:2015 certified production facility.
• Testing: Each batch undergoes rigorous dimensional inspection, hardness testing, and material composition analysis.
• Certifications: COA (Certificate of Analysis) available upon request.
• Warranty: 12-month warranty against manufacturing defects under normal operating conditions.

FAQ

Q1: Is this bearing a standard size or an undersize?

This part number (1N3821) typically corresponds to a standard size bearing. If your crankshaft has been ground, you will require an undersize bearing (e.g., 0.010″ or 0.020″). Please check the stamping on the back of your old bearing or measure your crankshaft journal to confirm.

Q2: Can I install this bearing without professional tools?

While the installation process involves basic hand tools, we strongly recommend professional installation by a qualified diesel mechanic. Proper clearance must be checked using Plastigage to ensure the oil film gap is within Caterpillar’s service specifications (typically 0.002-0.005 inches). Incorrect installation can lead to engine seizure or rapid bearing failure.

Q3: What is the recommended maintenance after installing new rod bearings?

After installation, it is critical to prime the engine’s oil system before starting to prevent dry start damage. Check engine oil pressure immediately after startup. We recommend an oil and filter change after the first 50 hours of operation to remove any initial wear particles. Always use the correct API-rated engine oil specified for the Caterpillar 3204 engine.