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Injection Pump Gear Compatible With Cummins 6Bt 1984-1998 6Bt 5.9L (4Bt) Fuel Pump Drive Gear

C4993971A2
OEM PART NUMBERS:
• Cummins: 4993971 (Fuel pump drive gear for VE pump equipped B series engines)
• Cummins: 3902236 (Cross-reference OEM number)
• Cummins: 3911331 (Cross-reference OEM number)
• Cummins: 3914912 (Cross-reference OEM number)
• Cummins: 3920593 (Cross-reference OEM number)
• Cummins: 3929032 (Cross-reference OEM number)

SPECIFICATIONS:
• Gear Type: Fuel Pump Drive Gear
• Position: Injection Pump
• Engine Family: Cummins B Series
• Condition: New

APPLICATION:
• Compatible with Cummins 4BT (1983-Present)
• Compatible with Cummins 6BT (1984-1998)
• Compatible with Case IH Tractors with 6BT (1985-1998)

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 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

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Description

CUMMINS_4BT:
• Cummins 4BT 4BT 3.9L (1983-Present)

CUMMINS_6BT:
• Cummins 6BT 6BT 5.9L (1984-1998)

CASE_IH:
• Case IH Tractors with 6BT Cummins 6BT (1985-1998)


IMPORTANT:
Fuel pump drive gear for Cummins B-Series engines with VE PUMP (Bosch VE rotary distributor). Cross-refs: 3902236, 3911331, 3928177, 3991210. Do NOT confuse with 3931382 (72T P7100 pump gear) — the VE pump and P pump use DIFFERENT drive gears. This is the #1 ordering mistake.

Fits 4BT (3.9L) and 6BT (5.9L) with VE pump. Used in Dodge Ram (1989-1993), Case IH, and various industrial applications. The VE pump gear directly controls injection timing. Failure symptoms: hard starting, timing knock, white smoke, erratic idle. Mark original position before removal — VE pump timing is gear-mesh dependent.

⚠️ For VE pump ONLY. P pump gear is 3931382 — NOT interchangeable.

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  • Item Requires Shipping
  • 6.0 lbs.
  • W10.0000” x H5.0000” x L10.0000”
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