John Deere 4045 Crankshaft RE504638 – OEM Replacement Diesel Engine Part

Product Details

Product Overview

This high-quality John Deere 4045 Crankshaft (RE504638) is a precision-engineered replacement part designed for demanding agricultural and industrial applications. As a critical component of the diesel engine’s rotating assembly, this crankshaft ensures reliable power delivery and long service life. We are a leading global supplier, shipping to major markets including North America, Europe, Asia-Pacific, the Middle East, and South America, with fast logistics to ports like Los Angeles, Rotterdam, and Shanghai.

Key Features & Benefits

• Premium Metallurgy: Manufactured from high-strength forged steel or ductile iron for superior fatigue resistance and durability under heavy loads.
• Precision Ground Journals: Machined to exact OEM tolerances (RE504638) for optimal bearing fitment and reduced friction, enhancing engine efficiency.
• Induction-Hardened Surfaces: Provides exceptional wear resistance on main and connecting rod journals, extending the component’s operational lifespan.
• Rigorous Quality Control: 100% inspected for dimensional accuracy, surface finish, and material integrity to ensure seamless installation and performance.
• Direct Fitment: A true bolt-on replacement for the original John Deere part, minimizing downtime during engine overhaul or repair.

Technical Specifications

OEM Cross-Reference

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

• John Deere: RE504638
• Alternative / Interchange Part Numbers: Please verify compatibility with your specific engine serial number, as variations may exist. This part is designed to match the original John Deere specification.

Compatibility

This crankshaft is designed for the John Deere 4045 engine family. Common applications include:

• Agricultural Tractors: John Deere 5000, 6000, and 7000 Series (with 4045 engine)
• Construction Equipment: John Deere Backhoes (e.g., 310, 410), Loaders, and Excavators using the 4045 PowerTech engine.
• Industrial Engines: Stationary power units and generator sets powered by the 4045 diesel.
• Year Range: Primarily used in models manufactured from the early 1990s through the 2000s. Always confirm engine serial number for exact fitment.

Global Supply & Distribution

We specialize in the global export of heavy-duty diesel engine parts. Our logistics network ensures fast and reliable delivery to:

• North America: Major ports (Los Angeles, New York, Houston) and inland distribution hubs.
• Europe: Rotterdam, Hamburg, and Antwerp.
• Asia-Pacific: Shanghai, Singapore, and Dubai (Jebel Ali).
• Middle East & Africa: Direct shipping to key industrial centers.
• South America: Santos, Buenos Aires, and Callao.

We offer competitive freight rates and handle all export documentation, including customs clearance support for our B2B partners.

Quality Assurance

• Manufacturing Standards: Produced in ISO 9001 certified facilities, adhering to strict quality management systems.
• Testing: Each crankshaft undergoes magnetic particle inspection (MPI) for cracks, dimensional checks, and surface hardness verification.
• Warranty: Backed by a comprehensive warranty against manufacturing defects. Please contact us for specific warranty terms and conditions.

FAQ

Q1: Is this crankshaft a direct replacement for my John Deere 4045T (Turbo) engine?
A: Yes, this RE504638 crankshaft is compatible with both naturally aspirated and turbocharged versions of the John Deere 4045 engine. However, we recommend verifying the crankshaft’s main bearing journal size and part number against your engine’s serial number to ensure correct fitment, as minor revisions may occur across production years.

Q2: What should I check before installing a new crankshaft?
A: Before installation, inspect the main bearing bores in the engine block for roundness and cleanliness. Always use new main and rod bearings, and ensure the crankshaft end-play is set to the manufacturer’s specification (typically 0.003-0.011 inches for the 4045). Lubricate all journal surfaces with clean engine oil during assembly.

Q3: Can this crankshaft be reground for undersized bearings?
A: While it is possible to regrind this crankshaft, it is manufactured to standard OEM size. If you require an undersized crankshaft (e.g., 0.010” or 0.020” under), please contact us to verify availability. We recommend using the crankshaft at its standard size to maintain proper oil clearances and fatigue life.