QSB4.5 Crankshaft 2831067 for Cummins Engine Parts Excavator Truck

Product Details

Product Overview

This is a high-quality replacement crankshaft, part number 2831067, specifically designed for the Cummins QSB4.5 diesel engine. As a critical rotating component, this crankshaft converts the linear motion of the pistons into rotational torque, providing the essential power output for heavy machinery. While primarily engineered for the QSB4.5 platform, this part is commonly used in a variety of off-highway and on-highway equipment, including excavators, trucks, forklifts, bulldozers, buses, and loaders.

Manufactured to OEM specifications, this crankshaft ensures a precise fit and reliable performance, making it a cost-effective solution for engine rebuilds and overhauls. It is an ideal replacement for worn or damaged factory components, helping to restore your engine’s power, efficiency, and longevity.

Key Features & Benefits

• Precision Engineering: Manufactured to match OEM dimensions and tolerances, guaranteeing a direct, bolt-in replacement for the specified engine model.
• Durable Construction: Crafted from high-strength alloy steel to withstand the extreme torsional and bending stresses of high-performance diesel operation.
• Enhanced Reliability: Undergoes rigorous heat treatment and surface finishing to improve wear resistance and fatigue life, reducing the risk of premature failure.
• Strict Quality Control: Each crankshaft is inspected during production, and a machinery test report is available to verify dimensional accuracy and balance.
• Restored Engine Performance: Replacing a worn crankshaft restores proper piston stroke and crankshaft timing, leading to smoother operation, better fuel economy, and reduced vibration.
• Cost-Effective Solution: Offers a significant cost advantage compared to genuine OEM parts without compromising on quality or fitment.

Technical Specifications

OEM Cross-Reference

This crankshaft is a direct replacement for the following OEM and reference part numbers:

• Cummins OEM: 2831067
• Alternative / Cross-Reference: 3974102

Note: Always verify the specific OEM number on your original part to ensure correct compatibility.

Compatibility

This crankshaft is specifically designed for the Cummins QSB4.5 diesel engine. Based on this engine platform, it is commonly used in the following applications:

• Construction & Excavation: Excavators, Bulldozers, Loaders
• Material Handling: Forklifts
• On-Highway Vehicles: Trucks, Buses
• Agricultural & Industrial: Other heavy equipment utilizing the QSB4.5 engine

Global Supply & Distribution

We maintain a robust global supply chain to ensure fast and reliable delivery for our B2B clients. Our strategic location in China allows for efficient logistics to all major international markets.

• Major Markets: North America (USA, Canada, Mexico), Europe (Germany, UK, Netherlands, France), Asia-Pacific (Australia, Singapore, UAE), Middle East & Africa.
• Shipping Capabilities: We offer worldwide shipping via sea (FCL/LCL), air, and express courier (DHL, FedEx, UPS) to meet your project timelines.
• Export Experience: Our team is experienced in international trade documentation, customs clearance, and compliance with global import/export regulations.

Quality Assurance

We are committed to delivering parts that meet or exceed industry standards for performance and reliability. Our quality process includes:

• Manufacturing Standards: Parts are produced in ISO-certified facilities with strict adherence to OEM specifications.
• Testing: A comprehensive Machinery Test Report is provided to confirm dimensional accuracy and balance. A Video Outgoing Inspection is also available upon request.
• Warranty: This product is backed by a 6-month warranty against manufacturing defects in materials and workmanship.

FAQ

Q: How can I confirm this 2831067 crankshaft will fit my engine?
A: Please verify your engine model is a Cummins QSB4.5. We also recommend checking the part number stamped on your old crankshaft. The primary OEM number is 2831067, and a common cross-reference is 3974102. If your engine is a QSB4.5 and your old part number matches, this crankshaft is the correct replacement.

Q: What is the recommended installation procedure for this heavy crankshaft?
A: Installation should only be performed by a qualified diesel mechanic. The 48 kg weight requires a hoist or engine stand for safe handling. Key steps include cleaning the block, inspecting main bearings, applying correct assembly lubricant, and torquing the main bearing caps to the manufacturer’s specifications (usually in a specific sequence and multiple stages). A service manual for the QSB4.5 engine is essential for this process.

Q: Does this crankshaft come with main bearings or thrust washers?
A: This listing is for the crankshaft only (part number 2831067). It does not include main bearings, thrust washers, or seals. We recommend purchasing a complete bearing set separately to ensure a successful engine rebuild. Please contact us if you need assistance sourcing these additional components.