Cummins 4B / ISB 4.5 Engine Bearings

Engine Bearings for Cummins 4B / ISB 4.5 engines. Every part in this collection is listed for the 4B, 4BT by its catalog application record, not by its title. Check your engine serial number or CPL against the part page before ordering.

25 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
172060	Cummins 4955873 Cummins 3800331 Cummins 3802084 +3 more	Cummins THRUST BEARING KIT	CUMMINS 4B ENGINES 3.9 CUMMINS 6B ENGINES 5.9	Call for price	Request lead time
172071	Cummins 4948509	Cummins 4.5 ENGINES Lower Rod Bearing(STD)	CUMMINS 4.5 ENGINES	Call for price	Request lead time
172070	Cummins 4948508	Cummins 4.5 ENGINES Upper Rod Bearing(STD)	CUMMINS 4.5 ENGINES	Call for price	Request lead time
171862	Cummins 4948505	Cummins 4.5 ENGINES Lower Main Bearing(STD)	CUMMINS 4.5 ENGINES	Call for price	Request lead time
171861	Cummins 4948504	Cummins 4.5 ENGINES Upper Main Bearing(STD)	CUMMINS 4.5 ENGINES	Call for price	Request lead time
172060OEM	—	Cummins THRUST BEARING KIT	CUMMINS 4B ENGINES 3.9 CUMMINS 6B ENGINES 5.9	$530.78	Ships from supplier · Lead time confirmed when you order
172059OEM	—	Cummins THRUST BEARING KIT	CUMMINS 4B ENGINES 3.9 CUMMINS 6B ENGINES 5.9	$450.44	Sold out - call for options
172055OEM	Cummins 4938953 Cummins 3283063 Cummins 3927770 +2 more	Cummins UPPER THRUST MAIN BEARING	CUMMINS 4B ENGINES 3.9 CUMMINS 6B ENGINES 5.9	$231.18	Sold out - call for options
172012	—	Cummins 4B ENGINES 3.9 MAIN BEARING KIT	CUMMINS 4B ENGINES 3.9	$78.45	Ships from supplier · Lead time confirmed when you order
171955HP	—	Cummins HIGH PERFORMANCE ROD BEARING KIT	CUMMINS 4B ENGINES 3.9 CUMMINS 6B ENGINES 5.9 +1 more	$70.22	Ships from supplier · Lead time confirmed when you order
171952HP	—	Cummins HIGH PERFORMANCE STANDARD ROD BEARING KIT	CUMMINS 4B ENGINES 3.9 CUMMINS 6B ENGINES 5.9 +1 more	$67.01	Ships from supplier · Lead time confirmed when you order
171813HP	—	Cummins HIGH PERFORMANCE MAIN BEARING KIT	CUMMINS 4B ENGINES 3.9 CUMMINS 6B ENGINES 5.9 +1 more	$309.68	Sold out - call for options
171812HP	Cummins 3800291 Cummins 3802071	Cummins HIGH PERFORMANCE MAIN BEARING KIT	CUMMINS 4B ENGINES 3.9 CUMMINS 6B ENGINES 5.9 +1 more	$307.78	Ships from supplier · Lead time confirmed when you order
171811HP	Cummins 3357480 Cummins 3800290 Cummins 3802070 +2 more	Cummins HIGH PERFORMANCE MAIN BEARING KIT	CUMMINS 4B ENGINES 3.9 CUMMINS 6B ENGINES 5.9 +1 more	$268.96	Ships from supplier · Lead time confirmed when you order
171808HP	—	Cummins HIGH PERFORMANCE MAIN BEARING KIT	CUMMINS 4B ENGINES 3.9 CUMMINS 6B ENGINES 5.9	$282.85	Sold out - call for options
171807HP	—	Cummins HIGH PERFORMANCE MAIN BEARING KIT	CUMMINS 4B ENGINES 3.9 CUMMINS 6B ENGINES 5.9	$282.85	Sold out - call for options
171806HP	—	Cummins 4B ENGINES 3.9 HIGH PERFORMANCE MAIN BEARING KIT	CUMMINS 4B ENGINES 3.9	$280.35	Ships from supplier · Lead time confirmed when you order
171803HP	—	Cummins HIGH PERFORMANCE ROD BEARING	CUMMINS 4B ENGINES 3.9 CUMMINS 6B ENGINES 5.9 +1 more	$35.01	Sold out - call for options
171802HP	Cummins 3901171 Cummins 4932375	Cummins HIGH PERFORMANCE ROD BEARING	CUMMINS ISB ENGINES CUMMINS 4B ENGINES 3.9 +1 more	$35.67	Ships from supplier · Lead time confirmed when you order
171801HP	Cummins 3901170 Cummins 3939859 Cummins 3969562 +1 more	Cummins HIGH PERFORMANCE ROD BEARING	CUMMINS ISB ENGINES CUMMINS 4B ENGINES 3.9 +1 more	$36.81	Ships from supplier · Lead time confirmed when you order
172011	—	Cummins 4B ENGINES 3.9 MAIN BEARING KIT	CUMMINS 4B ENGINES 3.9	$59.95	Ships from supplier · Lead time confirmed when you order
172010	Cummins 4955745	Cummins 4B ENGINES 3.9 MAIN BEARING SET	CUMMINS 4B ENGINES 3.9	$171.45	Ships from supplier · Lead time confirmed when you order
151528E	Cummins 3940059 Cummins 4983253	Cummins CAM BEARING	CUMMINS 4B ENGINES 3.9 CUMMINS 6B ENGINES 5.9 +2 more	$6.00	Ships from supplier · Lead time confirmed when you order
172059	Cummins 3283063 Cummins 3927770 Cummins 3925919 +1 more	Cummins THRUST BEARING KIT	CUMMINS 4B ENGINES 3.9 CUMMINS 6B ENGINES 5.9	$450.32	Sold out - call for options
151528	Cummins 3940059 Cummins 4983253	Cummins CAM BEARING	CUMMINS 4B ENGINES 3.9 CUMMINS 6B ENGINES 5.9 +2 more	$6.00	Ships from supplier · Lead time confirmed when you order

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