Cummins 4BT 3.9 QSB Piston (m): 7795
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AVAILABLE EQUIPMENT MODELS
Engine Series:
QSB
Engine Model:
4BT 3.9 QSB
Engine Data:
8 VALVE
TURBOCHARGED
Engine Info:
4 Cyl
Engine Dimensions:
Bore: 4.02 in / 102.108 mm
Stroke: 4.72 in / 119.888 mm
Piston (m):
7795
- WA150-5 - Wheel Loader
- WA150PZ-5 - Wheel Loader
- 2943
- 8058
- 8148
- 8149
- 8337
- 8492
- SAA4D102E-2B - ESN 26277757-UP
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Equipment Models
Komatsu
Cummins CPL's
Komatsu
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1) Engine O/H KitCOK7797/4 Std Click to view kit contentCOK7799/4 0.50 mm Click to view kit contentCLOSEItem #:Quantity:Description:C38020101BRG, MAIN SET STD 4BC38023751GASKET, BOTTOM SET 4BC40896481GASKET, TOP SET 4BC39011708BRG, CON ROD STD B SERIESC39400591BUSHING, CAMSHAFT B SERIESC39577974KIT, PISTON, QSB 3.9, STDC48911784BUSHING, CON ROD B SERIESCLOSEItem #:Quantity:Description:C38020101BRG, MAIN SET STD 4BC38023751GASKET, BOTTOM SET 4BC40896481GASKET, TOP SET 4BC39011708BRG, CON ROD STD B SERIESC39400591BUSHING, CAMSHAFT B SERIESC39577994KIT, PISTON, QSB 3.9, 0.50 MMC48911784BUSHING, CON ROD B SERIES2) O/H Kit Fractured RodCOK7797F/4 Std (1) Click to view kit contentCOK7799F/4 0.50 Click to view kit contentCLOSEItem #:Quantity:Description:C38020101BRG, MAIN SET STD 4BC38023751GASKET, BOTTOM SET 4BC39011704BRG, CON ROD STD B SERIESC39400591BUSHING, CAMSHAFT B SERIESC395577974KIT, PISTON, QSB 3.9, STDC40896481GASKET, TOP SET 4B QSBC48911784BUSHING, CON ROD B SERIESC48936934BRG, CON ROD, STD, B SERIES (LOWER)CLOSEItem #:Quantity:Description:C38020101BRG, MAIN SET STD 4BC38023751GASKET, BOTTOM SET 4BC39011704BRG, CON ROD STD B SERIESC39400591BUSHING, CAMSHAFT B SERIESC39577994KIT, PISTON, QSB 3.9, 0.50 MMC40896481GASKET, TOP SET 4B QSBC48911784BUSHING, CON ROD B SERIESC48936934BRG, CON ROD, STD, B SERIES (LOWER)3) Engine I/F KitCIK7797/4 Std Click to view kit contentCIK7799/4 0.50 mm Click to view kit contentCLOSEItem #:Quantity:Description:C38020101BRG, MAIN SET STD 4BC40896481GASKET, TOP SET 4BC39011708BRG, CON ROD STD B SERIESC39316021GASKET, OIL PAN 4BC39577974KIT, PISTON, QSB 3.9, STDCLOSEItem #:Quantity:Description:C38020101BRG, MAIN SET STD 4BC40896481GASKET, TOP SET 4BC39011708BRG, CON ROD STD B SERIESC39316021GASKET, OIL PAN 4BC39577994KIT, PISTON, QSB 3.9, 0.50 MM4) Engine I/F Kit Fractured RodCIK7797F/4 Std Click to view kit contentCIK7799F/4 .50mm Click to view kit contentCLOSEItem #:Quantity:Description:C39577974KIT, PISTON, QSB 3.9, STDC39011704BRG, CON ROD STD B SERIESC48936934BRG, CON ROD, STD, B SERIES (LOWER)C38020101BRG, MAIN SET STD 4BC40896481GASKET, TOP SET 4BC39316021GASKET, OIL PAN 4BSPEC SHEET - 4BT 3.9 QSBCLOSEItem #:Quantity:Description:C39577994KIT, PISTON, QSB 3.9, .50mmC39011704BRG, CON ROD STD B SERIESC48936934BRG, CON ROD, STD, B SERIES (LOWER)C38020101BRG, MAIN SET STD 4BC40896481GASKET, TOP SET 4BC39316021GASKET, OIL PAN 4B -
1) Piston & Ring KitC3957797 Std C3957799 0.50 mmUse 4 -
Main Bearing SetC3802010 Std C3802011 0.25 mm C3802012 0.50 mm C3802013 0.75 mmUse 1 -
Con Rod BearingC3901170 Std C3901171 0.25 mm C3901172 0.50 mm C3901173 0.75 mmRod bearings are priced and sold per shell -
Fractured Con Rod BearingC4893693 Std (1) C4892795 0.25 mm C4892796 0.50 mm C4892797 0.75 mmRod bearings are priced and sold per shell -
1) Front SealC39043532) Rear SealC33539783) CrankshaftC39078034) Front Seal SleeveC39060805) Rear Seal SleeveC39060816) Rectangular SealC39124737) Crankshaft, GearC39012588) Ring GearC3903309 (173T) (9) C3905427 (127T) (9) C3901774 (159T) (9) C3902127 (138T) (9) -
1) Top Gasket SetC40896482) Bottom Gsk SetC38023753) Head GasketC39213934) Oil Pan GasketC39316025) Valve Cover GskC39026666) Gear Housing GskC39161317) Rear Cover GskC39284938) Gear Cover GasketC3918673 (9) -
1) Bushing, PistonC4891178 x42) Bushing, CamC3940059 x13) Bolt, Con RodC3900919 x8 (6) C4891179 x8 (7)4) Con RodC3901569 (6) C4943979 (7)5) Bolt, Ex ManifoldC3944593 (10) C3944655 (11)6) Spacer, Ex. ManifoldC3945252 -
1) CamshaftC3925582 (8)2) TappetC39250313) Push RodC39046794) Rocker ArmsC3910811 x4 C3910810 x45) Camshaft GearC3907431 (8)6) Camshaft KeyC3902332 -
1) Oil Cooler 7 PltC39215572) Oil Cooler GasketC39267603) Oil Cooler Gasket Filter HeadC3942915
Piston Kit:
1) 1 C3957795 Piston Std,          1 C3938177 Ring Set Std,            1 C3934047 Piston Pin,  2 C3920691 Ret.
2) 1 C3957798 Piston 0.50 mm, 1 C3938197 Ring Set 0.50 mm, 1 C3934047 Piston Pin,  2 C3920691 Ret.
Valve Section
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Guide, Valve
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1) Intake, Valve KitConsists of:2) Insert, ValveUse 4
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1) Exhaust, Valve KitConsists of:2) Insert, ValveUse 4
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1) Spring, Valve2) Seal, ValveC3921640 x8 (4)C3957912 x8 (5)3) Retainer, ValveC3900299 x8 (4)
(1): On Fracture Split Con Rods use: C3901170 x4 (or O/S) and C4893693 x4 (or O/S).
(2): Can be Used on Both Intake and Exhaust.
(3): Diaphragm Style.
(4): For use on engines from April 2003, (Top Hat Style Valve Stem Seal).
(5): For use on engines from April 2003, (Top Hat Style Valve Stem Seal).
(6): Machine split connecting rod.
(7): Fracture split connecting rod.
(8): Use ESN or application model to confirm correct Camshaft & Gear.
(9): Check for proper application.
(10): Flanged Head Cap Screw.
(11): Studded Flange Cap Screw.