Cummins ISB / QSB / 6B 5.9 / 6.7 Cylinder Head Components

Cylinder Head Components for Cummins ISB / QSB / 6B 5.9 / 6.7 engines. Every part in this collection is listed for the 6B, 6BT, ISB, QSB by its catalog application record, not by its title. Check your engine serial number or CPL against the part page before ordering.

20 part numbers. Match the part number and your engine serial number — not sure? Call or text (720) 445-6249.

Part #	Replaces	Description	Fits	Price	Availability
040146	Cummins 3930249	Cummins SCREW (Pack of 6)	CUMMINS 4B ENGINES 3.9 CUMMINS 6B ENGINES 5.9 +2 more	Call for price	Request lead time
192191	Cummins 3939723	Cummins ISB ENGINES VALVE INSERT (Pack of 6)	CUMMINS ISB ENGINES	Call for price	Request lead time
040157	Cummins 3991132 Cummins 3929456	Cummins CAPSCREW (Pack of 2)	CUMMINS 4B ENGINES 3.9 CUMMINS 6B ENGINES 5.9	Call for price	Request lead time
040156	Cummins 3939409	Cummins CAPSCREW (Pack of 2)	CUMMINS 4B ENGINES 3.9 CUMMINS 6B ENGINES 5.9	Call for price	Request lead time
040157OEM	Cummins 3991132 Cummins 3929456	Cummins CAPSCREW	CUMMINS 4B ENGINES 3.9 CUMMINS 6B ENGINES 5.9	$25.37	In stock
040075OEM	Cummins 3900227	Cummins CAPSCREW	CUMMINS ISB ENGINES CUMMINS QSB SERIES ENGINE	$4.65	Ships from supplier · Lead time confirmed when you order
192059E	Cummins 3900299	Valve Spring Retainer, PAI (OEM 3900299), Pack of 4	CUMMINS 6B ENGINES 5.9 CUMMINS 4B ENGINES 3.9	$10.60	Ships from supplier · Lead time confirmed when you order
M-3928832	Cummins 3928832	Interstate-McBee Cummins B/ISB/QSB Push Rod Cover Gasket	CUMMINS B/ISB/QSB	$10.99	Ships from supplier · Lead time confirmed when you order
M-3284623	Cummins 3284623	Interstate-McBee Cummins B/ISB/QSB Push Rod Cover Gasket	CUMMINS B/ISB/QSB	$19.99	Ships from supplier · Lead time confirmed when you order
M-3283767	Cummins 3283767	Interstate-McBee Cummins B/ISB/QSB Push Rod Cover Gasket	CUMMINS B/ISB/QSB	$10.99	Ships from supplier · Lead time confirmed when you order
192225	Cummins 3395612 Cummins 3922716	Cummins B 5.9 NATURAL GAS Standard Exhaust Insert	CUMMINS B 5.9 NATURAL GAS	$34.30	Ships from supplier · Lead time confirmed when you order
192221	Cummins 3020211 Cummins 3922715	Cummins B 5.9 NATURAL GAS / 4B 3.9 / 6B 5.9 Standard Intake Insert	CUMMINS B 5.9 NATURAL GAS CUMMINS 4B ENGINES 3.9 +1 more	$30.60	Ships from supplier · Lead time confirmed when you order
192220	—	Cummins INTAKE VALVE KIT (Pack of 2)	CUMMINS 4B ENGINES 3.9 CUMMINS 6B ENGINES 5.9 +1 more	$23.94	Ships from supplier · Lead time confirmed when you order
192214	—	Cummins EXHAUST VALVE KIT (Pack of 2)	CUMMINS 4B ENGINES 3.9 CUMMINS 6B ENGINES 5.9 +1 more	$36.30	Ships from supplier · Lead time confirmed when you order
192184	Cummins 3925667	Cummins B5.9 Natural Gas Valve Spring, PAI (OEM 3925667), Pack of 2	CUMMINS B 5.9 NATURAL GAS	$10.88	Ships from supplier · Lead time confirmed when you order
192168	—	Cummins EXHAUST VALVE KIT (Pack of 2)	CUMMINS 4B ENGINES 3.9 CUMMINS 6B ENGINES 5.9	$178.28	Ships from supplier · Lead time confirmed when you order
192167	Cummins 3925175	Cummins 4B/6B Exhaust Valve, PAI (OEM 3925175), Pack of 2	CUMMINS 4B ENGINES 3.9 CUMMINS 6B ENGINES 5.9	$177.34	Ships from supplier · Lead time confirmed when you order
192133	Cummins 3941253	Cummins ISB/QSB Four-Valve-Head Pushrod, PAI (OEM 3941253), Pack of 4	CUMMINS ISB ENGINES CUMMINS QSB SERIES ENGINE	$46.60	Ships from supplier · Lead time confirmed when you order
040132	Cummins 3349635 Cummins 3818122 DetroitDiesel 11509526	Detroit DIESEL 60 SERIES DETROIT ENGINES SCREW (Pack of 4)	CUMMINS 4B ENGINES 3.9 CUMMINS 6B ENGINES 5.9 +1 more	$33.28	Ships from supplier · Lead time confirmed when you order
040097	Cummins 3944655 Cummins 5285901	Cummins SCREW	CUMMINS ISX SERIES CUMMINS 4B ENGINES 3.9 +1 more	$5.82	Ships from supplier · Lead time confirmed when you order

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