✅ Compatibility

• Make: Cummins
• Voltage: 24V DC
• OEM Part Numbers: 4937766, 3968190, 3968189, 5260634, 4943735
• Fits Cummins Engines:
  • QSL9 (9L inline-6 diesel)
  • QSC8.3 (8.3L inline-6 diesel)
  • ISLe / ISLe Series (8.9L inline-6 diesel)
  • ISDe / ISDe Series (4.5L / 6.7L inline diesel)
  • QSB5.9 (5.9L inline-6 diesel)
• Common Equipment Applications:
  • Heavy-Duty Trucks & Buses: Trucks and buses with Cummins QSL9, ISLe, ISDe, QSC8.3, or QSB5.9 engines
  • Construction Equipment: Excavators, wheel loaders, and other construction machinery with Cummins QSL9 / ISLe engines
  • Generator Sets: Stationary and mobile generator sets with Cummins QSL9 / QSC8.3 engines
• Note: This pump is 24V DC. Verify your engine serial number, voltage requirement, and existing pump part number before ordering. Contact us for fitment confirmation.

🔧 Product Highlights

• Direct OEM Replacement: Drop-in fit for Cummins QSL9 / QSC8.3 / ISLe / ISDe / QSB5.9 engines — matches original mounting, inlet/outlet ports, and 24V electrical specifications
• 24V DC Electric Fuel Transfer Pump: Designed for 24V electrical systems common in heavy-duty trucks, buses, and construction equipment — not compatible with 12V systems
• 5 Cross-Reference Part Numbers: Covers 4937766, 3968190, 3968189, 5260634, and 4943735 — broad coverage across Cummins OEM part numbering systems for QSL/QSC/ISL/ISD/QSB engine families
• Restores Reliable Fuel Transfer: Corrects fuel starvation, hard starting, loss of power, and engine shutdown caused by a worn or failing electric fuel transfer pump
• New Aftermarket Quality: Manufactured to Cummins OEM specifications for reliable 24V fuel transfer in demanding truck, bus, and off-highway applications

📦 What's Included

• 1× Electric Fuel Transfer Pump (4937766 / 3968190) — New Aftermarket, 24V

🔑 Key Specs

• Part Numbers: 4937766, 3968190, 3968189, 5260634, 4943735
• Voltage: 24V DC
• Compatible Engines: Cummins QSL9, QSC8.3, ISLe, ISLe Series, ISDe, ISDe Series, QSB5.9
• Condition: New Aftermarket
• SKU: 4937766

⚠️ This pump is 24V DC. Please verify your engine serial number and voltage requirement before purchasing. If unsure of compatibility, contact us with your Cummins engine serial number and we will confirm fitment.