Parts › Cummins › 4B/6B › Engine
40 engine parts that fit the Cummins 4B/6B, with brands, part numbers and cross-references.
Numbers in blue open their full cross-reference page — every interchange number for that part.
| Brand | Part number | Description |
|---|---|---|
| Cummins | 3802050 | piston ring set |
| Cummins | 3802052 | piston ring set |
| Cummins | 3802054 | piston ring set |
| Cummins | 3802056 | piston ring set |
| Cummins | 3802230 | piston ring set |
| Cummins | 3802232 | piston ring set |
| Cummins | 3802234 | piston ring set |
| Cummins | 3802746 | piston ring set |
| Cummins | 3802864 | piston ring set |
| Cummins | 3901117 | intake valve |
| Cummins | 3901258 | crankshaft gear |
| Cummins | 3901607 | exhaust valve |
| Cummins | 3901608 | exhaust valve |
| Cummins | 3904194 | valve insert |
| Cummins | 3904409 | valve stem guide |
| Cummins | 3906701 | crankshaft gear |
| Cummins | 3912883 | crankshaft gear |
| Cummins | 3918375 | crankshaft gear |
| Cummins | 3919680 | crankshaft gear |
| Cummins | 3919681 | crankshaft gear |
| Cummins | 3920867 | intake valve |
| Cummins | 3920868 | exhaust valve |
| Pai | 171716 | PAI 171716 Engine Timing Crankshaft Gear - Silver, For Cummin… |
| Pai | 191968 | PAI 191968 Engine Exhaust Valve - 2 Valve Head Cummins 4B/6B… |
| Pai | 191980 | PAI 191980 Engine Intake Valve - Cummins 4B/6B Series Engine… |
| Pai | 191983 | PAI 191983 Engine Intake Valve - 2 Valve Head Cummins 4B/6B S… |
| Pai | 192003 | PAI 192003 Engine Valve Seat Insert - 2 Valve Head Cummins 4B… |
| Pai | 192015 | PAI 192015 Engine Valve Seat - 2 Valve Head Cummins 4B/6B Ser… |
| Pai | 192039 | PAI 192039 Engine Valve Guide - Intake 2 Valve Head Finished… |
| Pai | 192040 | PAI 192040 Engine Valve Guide - Exhaust 2 Valve Head Semi-Fin… |
| Pai | 505075 | PAI 505075 Engine Piston Ring Set - STD Double Keystone Cummi… |
| Pai | 505077 | PAI 505077 Engine Piston Ring - .040in/1.00mm Double Keystone… |
| Pai | 505081 | PAI 505081 Engine Piston Ring Set - High Performance; .020in/… |
| Pai | 505082 | PAI 505082 Engine Piston Ring Set - .040in/1.00mm Size Turbo… |
| Pai | 505083 | PAI 505083 Engine Piston Ring Set - STD Non-Turbo Engine Cumm… |
| Cummins | 3802005 | intake valve |
| Cummins | 3802677 | injector kit |
| Cummins | 4945967 | Fuel Injector For Cummins 4B 6B 3.9L 5.9L 4945967 3976373 Bos… |
| Pai | 192122 | PAI 192122 Engine Push Rod - Intake and Exhaust Steel 2 Valve… |
| Pai | 505080 | PAI 505080 Engine Piston Ring Set - STD Turbo Engine Cummins… |
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Fitment is a guide — always confirm the exact part against your vehicle's spec and VIN.