Cummins QSB5.9 QSC8.3 QSL9 24V Oil Delivery Pump 4937766 3968190 3968189 5260634 4943735

Product Details

Product Overview

This high-quality 24V Oil Delivery Pump is specifically designed for use in Cummins B-series and L-series diesel engines, including the popular QSB5.9, QSC8.3, and QSL9 models. Manufactured to meet OEM specifications, this component is a direct replacement for multiple OEM part numbers, including 4937766, 3968190, 3968189, 5260634, and 4943735. The oil delivery pump is a critical component of the engine’s lubrication system, ensuring precise oil pressure and flow to vital engine parts.

Commonly used in heavy-duty applications such as construction equipment, industrial machinery, agricultural tractors, generator sets, marine vessels, and material handling equipment, this pump provides reliable performance under demanding conditions. As a direct-fit replacement part, it offers a cost-effective solution for engine overhauls and maintenance without compromising on quality.

Key Features & Benefits

• Direct OEM Replacement: Matches original specifications for Cummins part numbers 4937766, 3968190, 3968189, 5260634, and 4943735, ensuring accurate fitment and reliable performance.
• 24V Electrical System Compatible: Specifically designed for 24-volt electrical systems commonly found in heavy equipment and industrial applications.
• Precision Engineering: Manufactured to OEM size and tolerances, ensuring proper oil pressure regulation and consistent lubrication across all engine speeds.
• Durable Construction: Built with high-grade materials to withstand the thermal and mechanical stresses of diesel engine operation, extending service life.
• Versatile Application: Compatible with a wide range of Cummins B5.9, C8.3, and L9 series engines used in construction, agriculture, marine, and power generation equipment.
• Rigorous Testing: Each pump undergoes outgoing inspection and machinery test reporting to verify performance before shipping.
• Cost-Effective Solution: Offers significant savings compared to OEM pricing while maintaining the same level of quality and reliability.

Technical Specifications

OEM Cross-Reference

This oil delivery pump is a direct cross-reference for the following OEM and equivalent part numbers. Please verify your existing part number before ordering:

• Cummins OEM: 4937766, 3968190, 3968189, 5260634, 4943735
• Interchange Numbers: 3968188, 3968191 (where applicable)

Note: While these numbers are cross-referenced for compatibility, always confirm with your engine’s serial number or existing part for exact match.

Compatibility

This oil delivery pump is commonly used for the following Cummins engine families and applications:

• Engine Models: Cummins QSB5.9, QSC8.3, QSL9
• Common Applications: Construction equipment (excavators, loaders), industrial machinery, agricultural tractors, generator sets (genset), marine engines, and material handling equipment.

Fitment is inferred based on OEM cross-reference data. For precise compatibility, please consult your equipment’s service manual or contact our technical support team.

Global Supply & Distribution

We provide worldwide shipping and distribution services for this Cummins oil delivery pump. Our logistics network ensures fast and reliable delivery to major industrial centers and ports across:

• North America: USA, Canada, Mexico
• Europe: UK, Germany, France, Netherlands, Italy, Spain
• Asia-Pacific: Australia, New Zealand, Japan, South Korea, Southeast Asia
• Middle East & Africa: UAE, Saudi Arabia, South Africa, Nigeria
• South America: Brazil, Chile, Argentina, Peru

With export experience to over 30 countries, we offer competitive shipping rates and reliable delivery times. Bulk orders and expedited shipping options are available upon request.

Quality Assurance

Every oil delivery pump is manufactured under strict quality control standards in our ISO-compliant facility. Key quality measures include:

• Material Certification: All raw materials meet industry-grade specifications for durability and performance.
• Testing Procedures: Each unit undergoes outgoing video inspection and machinery test reporting to verify pressure and flow characteristics.
• Warranty Coverage: 6-month warranty against manufacturing defects. After-warranty online technical support is provided.
• Packaging: Secure multi-layer packaging (plastic bag, box, carton) to prevent damage during transit.

FAQ

Q: How do I verify this pump fits my Cummins QSB5.9 or QSL9 engine?
A: Cross-reference your existing part number with our listed OEM numbers (4937766, 3968190, 3968189, 5260634, 4943735). Alternatively, check your engine’s data plate for the specific engine model (e.g., QSB5.9, QSC8.3, QSL9) and confirm the voltage requirement is 24V. If unsure, contact us with your engine serial number for verification.

Q: What is the installation procedure for this oil delivery pump?
A: Installation should be performed by a qualified diesel mechanic. General steps include: 1) Disconnect the battery and drain engine oil. 2) Remove the old pump, noting the orientation. 3) Clean the mounting surface and apply new gasket. 4) Install the new pump and torque bolts to manufacturer specifications. 5) Reconnect oil lines and prime the system. Always consult the Cummins service manual for your specific engine model for detailed instructions.

Q: What maintenance is required for this oil delivery pump?
A: The pump itself requires no routine maintenance beyond ensuring clean engine oil and proper oil filter changes at recommended intervals. Always use the correct viscosity grade oil specified for your Cummins engine. If you notice oil pressure fluctuations, leaks, or unusual noise from the pump area, inspect the pump and replace if necessary. Regular engine oil analysis can help detect early wear issues.