The Cummins/Onan 4B3.3 engine line groups 2 variant designations. Parts and fitment are pooled here so a cross-reference found on one variant surfaces for the whole family.
| Part # | Description | Category |
|---|---|---|
| AN500T0119 | ALTERNATOR | Alternator |
| 0502-1507 | Adapter-Hose (Oil) | Hose |
| 0100-3922 | Engine-B3.3G1 | Service part / kit |
| 0155-4215 | Guard-Exhaust (Support) | Service part / kit |
| 0155-4311-02 | Guard-Exhaust | Service part / kit |
| 0320-1981-01 | Accessories-CB (SD Contact) | Service part / kit |
| 0320-1981-02 | Accessories-CB (Shunt Trip) | Service part / kit |
| 0320-2225-01 | Accessories-CB (Shunt Trip) | Service part / kit |
| 0320-2225-02 | Accessories-CB (SD Contact) | Service part / kit |
| 0331-0618-02 | Locknut Conduit | Service part / kit |
| 0332-4001-01 | Rail-Terminal Block (300mm) | Service part / kit |
| 0337-3583-04 | Strap-Ground | Service part / kit |
| 0338-4487 | Harness-Engine (Mechanical governor) | Service part / kit |
| 0338-4720 | Harness-Engine (Electronic governor) | Service part / kit |
| 0338-4819-02 | Harness AC | Service part / kit |
| 0338-4819-03 | Harness AC | Service part / kit |
| 0504-0264-01 | Valve-Hydraulic (Oil) | Service part / kit |
| 0505-0019 | Bushing-Reducer | Service part / kit |
| 0505-2235 | Adaptor-Pipe | Service part / kit |
| 0526-0399-56 | Washer-Flat (M5) | Service part / kit |
| 0526-0399-60 | Washer-Flat (M8) | Service part / kit |
| 0526-0399-62 | Washer-Flat (M10) | Service part / kit |
| 0800-0309-93 | Screw-Hex Head (M5) | Service part / kit |
| 0800-3017-19 | Screw-Hex Head (M8 X 20) | Service part / kit |
| 0800-3017-35 | Screw HHC (M10) | Service part / kit |
| 0800-3017-37 | Screw-Hex Head (M10 X 25) | Service part / kit |
| 0850-0114-52 | Washer-Lock (M5) | Service part / kit |
| 0850-0114-54 | Washer-Lock (M8) | Service part / kit |
| 0850-0114-55 | Washer-Lock (M10) | Service part / kit |
| 0862-0026-55 | Nut-Hex (M8) | Service part / kit |
| 0862-0026-56 | Nut-Hex (M10) | Service part / kit |
| 0872-0020-01 | Standoff | Service part / kit |
| 0872-0021 | Standoff | Service part / kit |
| 432PSV6551 | Selector Switch | Service part / kit |
| 961-0518 | (Issue1) | Service part / kit |
| 0193-0430-01 | Sender-Pressure | Sensor |
| A-345052 | Engine oxygen sensor | Sensor |
| GM28980 | UEGO Oxygen Sensor | Sensor |
| 25164640 | SPARK PLUG,(*33,35 )(AC- R45TS)(AC-DELCO #2) | Spark plug |
| 0193-0432 | Thermostat | Thermostat |
Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.