The Caterpillar 3512B engine line groups 6 variant designations. Parts and fitment are pooled here so a cross-reference found on one variant surfaces for the whole family.
| Part # | Description | Category |
|---|---|---|
| 8N6309 | Air filter outer | Air filter |
| 105-amp | Alternator | Alternator |
| 141-7116 | V-belt | Belt |
| 1R-0755 | High Efficiency Fuel Filter | Filter |
| 1U-5490 | Hydrosolv 4165 liquid cleaner, 19 L (5 US gallon) | Fluid |
| 1U-5492 | Hydrosolv 100 Liquid Cleaner, 19 L (5 US gal) | Fluid |
| 1U-8804 | Hydrosolv 100 Liquid Cleaner, 4 L (1 US gal) | Fluid |
| 1U-8812 | Hydrosolv 4165 Liquid Cleaner, 4 L (1 US gal) | Fluid |
| 5N-5561 | Silicone Lubricant | Fluid |
| 8T-5571 | Hydrosolv 100 - 208 L (55 US gallon) | Fluid |
| 8T-7570 | Hydrosolv 4165 - 208 L (55 US gallon) | Fluid |
| 133-5673 | Fuel/Water Separator | Fuel filter |
| 1R-0749 | Fuel Secondary - ADV | Fuel filter |
| 1R0750 | Filter fuel | Fuel filter |
| 1R0755 | Filter fuel | Fuel filter |
| 1R0756 | Filter fuel | Fuel filter |
| 3S3875 | Filter fuel | Fuel filter |
| 10R9951 | Head Gaskets | Gasket |
| 1744947 | Aftercooler and Lines Gaskets | Gasket |
| 2322507 | Manifold Gaskets | Gasket |
| 2322521 | Turbocharger Gaskets | Gasket |
| 2342795 | Injector Seals/Gaskets | Gasket |
| 1R0741 | Filter hydraulic | Hydraulic filter |
| 2322522 | Reman Injectors | Injector |
| 1R-0716 | Engine Oil | Oil filter |
| 1R-1808 | Engine Oil - ADV | Oil filter |
| 1R0719 | Filter oil | Oil filter |
| 1R0726 | Filter oil | Oil filter |
| 138-8440 | Component cleaner | Service part / kit |
| 1440725 | Connecting rod | Service part / kit |
| 169-8373 | Fluid Sampling Bottle | Service part / kit |
| 174-6854 | Hydrosolv 100 liquid cleaner, 19 L (5 US gallon) | Service part / kit |
| 1743191 | Reman Cylinder Heads | Service part / kit |
| 249-0437 | Oxidation Catalyst Assembly - Round | Service part / kit |
| 4C-9301 | Coolant Conditioner Test Kit | Service part / kit |
| 5P-3413 | Pipe Sealant | Service part / kit |
| 8T-5296 | Coolant Conditioner Test Kit | Service part / kit |
| 9S-3263 | Thread lock | Service part / kit |
| 9S-4030 | Thread lock | Service part / kit |
| PEHJ0271 | Cat® Emissions Upgrade Kits for Select 3500 Marine Engines | Service part / kit |
| PEHJ0287 | Cat® Performance Upgrade Kits for Select 3508, 3512, and 3516 Marine Engines | Service part / kit |
| 1U-5718 | Vacuum Pump | Pump |
| 222-5152 | Water pump repair kit | Pump |
| 9S-8140 | Pressurizing Pump | Pump |
| 113-8432 | Front seal | Seal |
| 4W3864 | Water pump seal | Seal |
| 9G8010 | Switch | Sensor |
| ESD5526 | Speed Controller | Speed controller |
| 248-5513 | Thermostat | Thermostat |
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.