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Engine Oil Pump Compatible With Various OEM Ford F-Series/Bluebird Bus/School Buses 1985-2005

C3930338A4
OEM PART NUMBERS:
• Cummins: 3930338 (Primary OEM number)
• Cummins: 3802278 (Alternate/superseded number)
• Cummins: 3800828 (Alternate/superseded number)
• Cummins: 3948071 (Alternate/superseded number)

SPECIFICATIONS:
• Drive Type: Gear-driven
• Gear Type: Gerotor
• Engine Family: 6C/6CT/QSC 8.3
• Displacement: 8.3L
• Condition: New

APPLICATION:
• Compatible with Cummins 6C8.3/6CT8.3/6CTA8.3 (1985-2005)
• Compatible with Cummins ISC 8.3/QSC8.3 (1998-2010)
• Compatible with Various OEM Kenworth/Freightliner/Peterbilt/Volvo (1985-2005)
• Compatible with Various OEM School buses/Motor homes/Fire engines (1985-2005)

PRODUCT NOTICE:
As a parts distributor we mostly sell aftermarket parts (any OEM parts would be noted as such). Aftermarket parts are not sourced from the original vehicle or equipment manufacturer, but are designed to function the same as - if not better than - the original. All parts sold are new.

WARNING - This product may expose you to chemicals such as Nickel which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov

Was: $448.16
Sale: $256.09
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Save: $192.07
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Description

CUMMINS TRUCK AND INDUSTRIAL ENGINES:
• Cummins 6C8.3/6CT8.3/6CTA8.3 6C/6CT/6CTA 8.3L Diesel (1985-2005)
• Cummins ISC 8.3/QSC8.3 ISC/QSC 8.3L Diesel (1998-2010)

HEAVY DUTY TRUCK APPLICATIONS:
• Various OEM Kenworth/Freightliner/Peterbilt/Volvo Cummins 6CT 8.3L Diesel (1985-2005)
• Various OEM Ford F-Series/Bluebird Bus Cummins 6CT 8.3L Diesel (1985-2005)
• Various OEM School buses/Motor homes/Fire engines Cummins 6CT 8.3L Diesel (1985-2005)


IMPORTANT:
Cummins 6C/6CT/6CTA 8.3L oil pump with VENTED ROTOR gerotor design. The vented rotor allows trapped air to escape — critical for engines that idle extended periods or where oil aeration occurs (marine, transit buses). Supersedes 3802278, 3800828, 3948071.

CRITICAL: Do NOT substitute with gear-type pump 3948072 — despite both fitting 8.3L engines, they are different pump types and are NOT interchangeable. Match your existing pump type. Used in trucks (Kenworth, Freightliner, Peterbilt), school/transit buses, marine, generators. Inspect oil cooler for internal restriction (common co-failure) when replacing.

⚠️ Vented rotor gerotor — NOT interchangeable with gear-type 3948072.

Details

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  • Item Requires Shipping
  • 5.4 lbs.
  • W8.0000” x H6.0000” x L10.0000”
  • Free Shipping!

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