The Caterpillar 3304B 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 |
|---|---|---|
| 1M7250 | Air filter housing | Air filter |
| 7M4705 | V-belt | Belt |
| M-1W3711 | Alternator, V, .69in (17.5mm) - 67.99in (1727mm) | Belt |
| 1R-1740 | Standard Efficiency Fuel Filter | Filter |
| 151-2409 | Filter water separator | Fuel filter |
| 1R0750 | Filter fuel | Fuel filter |
| 3S3875 | Filter fuel | Fuel filter |
| 8N0205 | Filter water separator | Fuel filter |
| 8N9803 | Filter water separator | Fuel filter |
| 9N3717 | Filter water separator | Fuel filter |
| 9Y1979 | Gasket exhaust manifold | Gasket |
| 3T9561 | Glow plug | Glow plug |
| 3T9562 | Glow plug | Glow plug |
| 1R0741 | Filter hydraulic | Hydraulic filter |
| 9T0973 | Filter hydraulic/transmission | Hydraulic filter |
| 7N5910 | Water pump impeller | Impeller |
| 102-2828 | Filter oil | Oil filter |
| 1R0719 | Filter oil | Oil filter |
| 9M9740 | Filter oil | Oil filter |
| 8N1721 | Connecting rod | Service part / kit |
| 8N1984 | Connecting rod | Service part / kit |
| PEHP3036 | Cat Reman Short and Long Blocks | Service part / kit |
| PEHP3036-01 | Cat Reman Short and Long Blocks | Service part / kit |
| 172-7766 | Water pump | Pump |
| 1W1695 | Lift/transfer pump | Pump |
| 6I1346 | Oil pump | Pump |
| 4W3864 | Water pump seal | Seal |
| DM-6J6915 | SEAL RING 3304 | Seal |
| 3E2026 | Switch | Sensor |
| ESD5500E | Speed Controller | Speed controller |
| 111-8010 | Thermostat | Thermostat |
| 4N8969 | Turbocharger | Turbocharger |
Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.
Leads compiled from supplier catalogs across the family’s variants; verify the exact part for your variant and serial number.