Oil Galley Plug Cummins 4BT 6BT 6CT
3900956 Freeze Plug 390 095 6 Fr

New Oil Galley Plug for Cummins 4B/4BT 8v, 6B/6BT 12v and 8.3 6CT.

If you are rebuilding an engine, be sure to plug the holes, unless you will have no oil pressure! Machine shops will generally remove these.

                       
            
       



Scroll down for more detailed compatibility information.

Part Number: 3900956

Weight: 0.1 lbs.

Price: $3.00
Short Product Description:

3900956 Freeze Plug

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Questions and Answers:

Q: Should oil galley plugs always be replaced on the Cummins B Series engines? 9/18/2024
A: The Cummins Repair Manual says that these should be replaced, if the block was put in a hot tank or spray washer. That cleaning activity can interrupt the sealing capacity of the sealant.

Q: How should oil galley plugs be removed on the Cummins B Series engines?
9/18/2024
A: The Cummins Repair Manusl says expansion plugs shuld be center punched and drilled out. It recommends a 3mm or 1/8mm drill, a slide hammer and a no. 10 sheet metal screw.

Q: What is the spec for the oil galley holes on the Cummins B Series engines?
9/18/2024
A: The Cummins Repair Manual says the hole needs to be within .1mm of any two dimensions.

Q: How should the oil galley plugs be installed on the Cummins B series engines?
9/18/2024
A: The Cummins Repair Manual says that the plugs shouuld be installed with a 2mm bead of Expansion Plug Locktite Sealant and an appropriate expansion plug driver. You should wait two hours for the sealant to harden before running the engine. Also the expansion plug should be installed within .5mm to 1mm of the surface.

Feedback For This Item:
Buyer: Jason S. from Monroe, NC 8/1/2024
Sealed the hole like it should. No oil leak!


3900956 Expansion Plug Quantity: 3 Remarks: 17.73 mm Engine Year: 1988 BT5.9 160 CPL:804 Sample ESN: 44243058

3900956 Expansion Plug Quantity: 4 Remarks: 17.73 mm Engine Year: 2003 ISB-305 CPL:8213 Sample ESN: 57105577

3900956 Expansion Plug Quantity: 3 Remarks: 17.73 mm Engine Year: 1996 B5.9 (215) CPL:2175 Sample ESN: 56326974

3900956 Expansion Plug Quantity: 3 Remarks: 17.73 mm Engine Year: 2004 ISB 185 CPL:8136 Sample ESN: 57187100

3900956 Expansion Plug Quantity: 3 Remarks: 17.73 mm Engine Year: 2000 ISB-195-BUS ENCORE CPL:2686 Sample ESN: 45989218

3900956 Expansion Plug Quantity: 3 Remarks: 17.73 mm. Engine Year: 1988 4BT3.9 (105) CPL:858 Sample ESN: 44258612

3900956 Expansion Plug Quantity: 3 Remarks: 17.73 mm Engine Year: 1988 4B3.9 CPL:591 Sample ESN: 21021339

3900956 Expansion Plug Quantity: 3 Remarks: 17.73 mm. Engine Year: 1995 4BT3.9-C CPL:730 Sample ESN: 21021339

3900956 Expansion Plug Quantity: 3 Remarks: 17.73 mm Engine Year: 2006 S4D102LE-2 CPL:1493 Sample ESN: 46659758

3900956 Expansion Plug Quantity: 3 Remarks: 17.73 mm Engine Year: 2000 B3.9 130 CPL:1839 Sample ESN: 46114812

3900956 Expansion Plug Quantity: 3 Remarks: 17.73 mm Engine Year: 2006 QSB4.5 CPL:8401 Sample ESN: 46114812

3900956 Expansion Plug Quantity: 3 Remarks: 17.73 mm Engine Year: 1997 B5.9 (190) CPL:1551 Sample ESN: 46114812

3900956 Expansion Plug Quantity: 3 Remarks: 17.73 mm Engine Year: 1996 B5.9-C177 CPL:599 Sample ESN: 46114812

3900956 Expansion Plug Quantity: 3 Remarks: 17.73 mm Engine Year: 1999 BT5.9-C160 CPL:1288 Sample ESN: 46114812

3900956 Expansion Plug Quantity: 3 Remarks: 17.73 mm Engine Year: 2009 ISL 400 CPL:3155 Sample ESN: 46114812

Description: 3900956 Freeze Plug
Price: $3.00

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