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Product Details
Product Overview
This premium Cummins Engine Oil Pump (Part Number: 3930338) is a direct replacement for the 6CT and 6CT8.3 diesel engine series. Designed to meet or exceed OEM specifications, this critical lubrication component ensures consistent oil pressure and flow to protect your engine from premature wear. Our global supply network ensures fast, reliable shipping to major industrial centers in North America, Europe, Asia-Pacific, the Middle East, and Africa, supporting heavy equipment, marine, and power generation applications worldwide.
Key Features & Benefits
OEM Quality Fitment: Precision-engineered to match the original Cummins 3930338 specifications for a hassle-free installation.
Enhanced Durability: Constructed from high-grade cast iron and hardened steel gears to withstand high-pressure operation and extreme temperatures.
Optimal Lubrication: Delivers consistent oil flow to crankshaft, connecting rods, and turbocharger, reducing friction and extending engine life.
Rigorous Testing: Each pump undergoes pressure and flow bench testing to ensure compliance with OEM performance standards.
Cost-Effective Solution: A reliable aftermarket alternative to expensive dealer parts without compromising on quality or longevity.
Technical Specifications
Specification
Detail
Part Number
3930338
Engine Models
Cummins 6CT, 6CT8.3
Material
High-Strength Cast Iron Housing / Hardened Steel Gears
Interchange: Replaces genuine Cummins parts with identical fit and function.
Compatibility
Engine Series: Cummins 6CT (6.7L), 6CT8.3 (8.3L)
Applications: Heavy-duty trucks, construction machinery (excavators, loaders), agricultural tractors, marine propulsion, and generator sets.
Year Range: 1990s–2010s (Check specific engine serial number for exact fitment).
Global Supply & Distribution
Worldwide Shipping: We deliver to 50+ countries via DHL, FedEx, UPS, and sea freight.
Major Markets: USA, Canada, Germany, UAE, Saudi Arabia, Australia, Singapore, South Africa, and Brazil.
Fast Delivery: Stock available for immediate dispatch from regional warehouses in Houston (USA), Rotterdam (Netherlands), and Shanghai (China).
Trade Compliance: All shipments include necessary export documentation and customs support.
Quality Assurance
Certifications: Manufactured in ISO 9001:2015 certified facilities.
Warranty: 12-month warranty against manufacturing defects.
Testing: 100% pressure and flow tested prior to packaging.
FAQ
Q1: Is this oil pump a direct replacement for my Cummins 6CT8.3 engine? Yes, the 3930338 oil pump is a direct bolt-on replacement for the 6CT and 6CT8.3 series. It matches OEM dimensions and mounting points, requiring no modifications. Always verify your engine’s serial number to confirm compatibility with your specific model variant.
Q2: What are the signs that my oil pump needs replacement? Common symptoms include low oil pressure warnings on the dashboard, unusual engine noise (rattling or knocking), and decreased lubrication leading to overheating. If you observe any of these, replace the pump immediately to prevent catastrophic engine failure. We recommend replacing the pump during major engine overhauls.
Q3: Do I need to prime the oil pump before installation? Yes, to prevent dry start damage, you should prime the pump by packing the gear cavity with clean engine oil or assembly lubricant before installation. This ensures immediate oil pressure upon startup. Failure to prime can result in temporary bearing starvation.
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