C4.4 Diesel Engine Main and Con Rod Bearing Set T427334 T410927 STD for Caterpillar

Product Details

Product Overview

This premium Main and Connecting Rod Bearing Set is specifically engineered for the Caterpillar C4.4 diesel engine. The set includes both main bearings (part number T427334) and con rod bearings (part number T410927) in standard (STD) size, providing a complete solution for engine overhaul or repair. Manufactured under strict quality controls, these bearings are critical components for ensuring proper crankshaft clearances and oil film support, directly impacting engine longevity and performance.

Designed to meet OEM specifications for the Caterpillar C4.4, this bearing set is commonly used in a wide range of heavy equipment including excavators, forklifts, loaders, bulldozers, and trucks. The precision-ground tri-metal construction offers excellent fatigue resistance and conformability, making it a reliable choice for both rebuilders and maintenance professionals.

Key Features & Benefits

• OEM-Spec Dimensions: Manufactured to exact OEM standard size (STD) for direct replacement without machining adjustments.
• Complete Set: Includes both main bearings (T427334) and connecting rod bearings (T410927) for a comprehensive engine rebuild.
• Tri-Metal Construction: Features a steel back, copper-lead intermediate layer, and lead-tin overlay for superior load capacity and embedability.
• High Wear Resistance: Designed to withstand high compression and combustion pressures typical of turbocharged diesel engines.
• Strict Quality Control: Each bearing undergoes dimensional and material testing to ensure consistent wall thickness and crush height.
• Cost-Effective Solution: Premium aftermarket quality at a competitive price point compared to genuine OEM parts.
• Global Compatibility: Suitable for C4.4 engines in Caterpillar, Perkins, and other branded equipment applications.

Technical Specifications

OEM Cross-Reference

This bearing set is a direct aftermarket replacement for the following Caterpillar OEM part numbers:

• Main Bearing: T427334
• Connecting Rod Bearing: T410927

These numbers correspond to the standard size bearings used in the Caterpillar C4.4 engine family. For engines requiring undersize or oversize bearings (e.g., 0.25mm or 0.50mm), please contact our sales team for availability.

Compatibility

This bearing set is commonly used for the following applications:

• Engine Models: Caterpillar C4.4, Perkins 1104C-44 (where applicable)
• Vehicle/Equipment Types: Excavators, Forklifts, Wheel Loaders, Bulldozers, Trucks, Buses, and Agricultural machinery
• Note: Fitment may vary by specific equipment model and engine serial number. We recommend verifying your existing bearing part numbers before purchase.

Global Supply & Distribution

We maintain a robust supply chain capable of shipping this C4.4 bearing set to major industrial markets worldwide:

• North America: Fast delivery to ports in Los Angeles, Houston, New York, and Vancouver.
• Europe: Regular shipments to Rotterdam, Hamburg, Antwerp, and Felixstowe.
• Asia-Pacific: Direct distribution from Guangdong warehouses to Singapore, Dubai, Tokyo, and Sydney.
• Middle East & Africa: Efficient logistics to Jebel Ali, Dammam, and Durban.
• South America: Service to Santos, Buenos Aires, and Callao ports.

Our export team has extensive experience with international trade documentation, including commercial invoices, packing lists, and certificates of origin, ensuring smooth customs clearance for B2B buyers.

Quality Assurance

Every bearing set is manufactured in ISO-compliant facilities with the following quality commitments:

• Material Testing: Raw materials are verified for chemical composition and hardness.
• Dimensional Inspection: Wall thickness, crush height, and bore diameter are checked using precision gauges.
• Video Outgoing Inspection: Available upon request for bulk orders.
• Machinery Test Report: Provided to confirm performance specifications.
• Warranty: 6-month warranty against manufacturing defects, covering material or workmanship issues under normal operating conditions.

FAQ

Q1: How do I confirm if these bearings fit my Caterpillar C4.4 engine?
A: First, verify your engine’s serial number and current bearing part numbers. These T427334 and T410927 bearings are designed for standard (STD) crankshaft journals in C4.4 engines. If your crankshaft has been ground undersize, you will need corresponding undersize bearings. We recommend comparing your existing bearing markings to confirm exact specifications.

Q2: What is the recommended installation procedure for these bearings?
A: Installation should be performed by a qualified diesel mechanic. Key steps include: cleaning the bearing saddles, checking oil clearance using Plastigage, applying assembly lube to the bearing surfaces, and torquing main bearing caps and connecting rod bolts to factory specifications. Never reuse old bearings or mix different bearing sets.

Q3: How should I store unused bearings?
A: Store bearings in a clean, dry environment at room temperature (15-25°C). Keep them in their original packaging to prevent contamination from dust or moisture. Avoid exposure to corrosive chemicals or extreme temperature fluctuations. For long-term storage, consider applying a light coating of rust-preventative oil.