Replacement Oil Pump for Cummins ® B/ISB/QSB Applications 6B OEM Cross References: 4939587 Superseded/Alternate Numbers: M-3937404

Product Details

1 x Lube Oil Pump – 4939587

Fits Application: Cummins 6B Series

Details: Lube Pump

OE Replacements: 41299, 3937404, 3901175, 3906414, 3914006, 3914008, 3924720, 3926203, 3941742, 3930337, 4939587

Application & Fitment

• Engine Make: Cummins
• Engine Model / Application: B/ISB/QSB

Confirm the original part number and engine identification before ordering. Where applicable, also verify serial-number range, production year, piston style, bearing size or other configuration notes shown in the product information.

Part Numbers & Cross References

• OEM Cross Reference: 4939587
• Alternate / Superseded: M-3937404
• Interstate-McBee Reference: M-4939587

Need Help Confirming Fitment?

Use the engine model, serial number and original part number when checking compatibility. For kits and sets, review the complete component breakdown above before ordering because contents can vary by engine configuration.