Parts
120| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 102-1147 | Gasket, Drain-Oil Pan | 1 | Gasket | Amazon eBay |
| 102-1356 | Gasket, Oil Drain | 1 | Gasket | Amazon eBay |
| 130-3216 | V-belt | 1 | Belt | Amazon eBay FridayParts $17.99 |
| 140-2148 | Element, Cleaner-Air | 1 | Air filter | eBay |
| 140-2150 | Element, Cleaner-Air Primary | Air filter | eBay | |
| 140-2164 | Nut, Square (1/4-20) | 1 | Nut | Amazon eBay KuduParts $10.00 |
| 140-2241 | Element, Air Cleaner | 1 | Air filter | Amazon eBay $299.95 NAPA $87.00 |
| 140-2251 | Element, Air Cleaner Secondary (Inner) | 1 | Air filter | Amazon eBay |
| 140-2252 | Element, Air Cleaner - Secondary (Inner) | 1 | Air filter | Amazon eBay |
| 150-0717 | Switch Assembly, Overspeed | 1 | Sensor | Amazon eBay $99.95 |
| 150-1406 | Sensor, Speed - Magnetic | 1 | Sensor | Amazon eBay |
| 150-1557 | Wheel, Sensor-Speed | 1 | Sensor | eBay |
| 150-2007 | Guard. Belt Screw. Cap - Hex Head (1/2-13 X 2-1/4“) | 1 | Belt | Amazon eBay FridayParts $263.79 KuduParts $344.00 |
| 150-2201 | Sensor, Speed – Magnetic | 1 | Sensor | Amazon eBay |
| 155-3150-04 | Muffler, Critical | 1 | Muffler | Amazon eBay |
| 155-3164-01 | Pipe, Exhaust | 1 | Pipe | Amazon eBay |
| 187-0001 | Pump, Water | 1 | Pump | Amazon eBay |
| 187-0002 | Gasket Kit, End - Top | 1 | Gasket | Amazon eBay |
| 187-0003 | Gasket Kit, End-Top | Gasket | Amazon eBay | |
| 187-0005 | Injector | Injector | Amazon Amazon eBay eBay | |
| 187-0008 | Belt, Drive | 4 | Belt | Amazon eBay |
| 187-0009 | Belt, Drive | 4 | Belt | Amazon eBay |
| 187-0011 | Filter, Fuel | 1 | Fuel filter | Amazon |
| 187-0013 | Pump, Transfer-Fuel | Pump | Amazon eBay $100.99 | |
| 187-0014 | Filter, Oil | Oil filter | Amazon eBay $24.49 | |
| 187-0016 | Pump, Injection | Pump | Amazon eBay | |
| 187-0018 | INJ. PUMP | Pump | Amazon eBay | |
| 187-0019 | Pump, Injection | Pump | Amazon eBay | |
| 187-0020 | Thermostat | 1 | Thermostat | Amazon eBay |
| 191-1983-02 | Alternator, 24 Volt Spec B-O (Prestolite) | 1 | Alternator | Amazon eBay |
| 191-i962-02 | Starter, Negative Ground 24 volt Spec B-F | 1 | Starter | Amazon eBay |
| 191-i981.1 | Alternator, 24 Volt Spec E-H (Bosch) | Alternator | buy | |
| 193-0244 | Sender, Pressure - 0i1 | 1 | Sensor | Amazon eBay |
| 193-0322 | Sender, Coolant-Low | 1 | Sensor | Amazon eBay |
| 193-0353 | Sender, Temperature - Oil | 1 | Sensor | Amazon eBay |
| 193-0375 | # Sender, Water Temperature | 1 | Sensor | Amazon eBay |
| 300-2880 | Board, Voltage Regulator (VR21) | 1 | Avr | Amazon eBay FridayParts $350.50 |
| 309-0128 | Thermostat - Adjustable | 1 | Thermostat | Amazon eBay |
| 309-0269 | Sender, Temperature-Lo Engine | 1 | Sensor | Amazon eBay $239.00 |
| 309-0272 | Regulator, Voltage - 24 VDC (Used on 35 A MP Alternator) | 1 | Alternator | Amazon eBay |
| 309-0561 | Alternator & Drive Components Group Pulley. Alternator - Multi Groove (Use with 35 A MP Alternator) | 1 | Alternator | Amazon eBay |
| 319-2653 | Window, Control (If Equipped) | 1 | Window | Amazon eBay |
| 328876800 | Belt, V-Grooved | 1 | Belt | eBay |
| 333-0292-01 | Thermostat (Includes Plug) | Thermostat | eBay | |
| 333-0292-02 | Thermostat (Includes Plug) | Thermostat | eBay | |
| 353-0094-01 | Connector Housing and Contact Pins, 8 Pin (Less Pins) | 1 | Connector | Amazon eBay |
| 405-3826-01 | Support, Engine - Screw, Cap - Hex Head (M12 x 1.75 x 65mm) | 1 | Support | Amazon eBay |
| 405-5744 | Post, Housing - Center | 4 | Post | Amazon eBay |
| 405-5832 | Door, Housing | 6 | Door | Amazon eBay |
| 405-5908 | Panel, Side - Radiator Housing | 2 | Panel | Amazon eBay |
| 405-5916 | Post, Corner - Housing | 2 | Post | Amazon eBay |
| 405-5917 | Panel, End - Roof | 2 | Panel | Amazon eBay |
| 406-0831 | Hinge, Door | 14 | Hinge | Amazon eBay |
| 501-0441 | Line, Fuel - Flex (Fuel In) | 1 | Hose | Amazon eBay |
| 501-0502 | Line, Fuel-Flex (Fuel Out) | 1 | Hose | Amazon eBay |
| 502-0047 | Nipple, Pipe (1/4) | 1 | Nipple | Amazon eBay |
| 503-0098 | Hose, Oil Drain - Bulk (Order By The Foot - 3 Feet Required) | 1 | Hose | Amazon eBay |
| 503-0183 | Clamp, Hose | 1 | Hose | Amazon eBay |
| 503-0197 | Clip, Hose | 1 | Hose | Amazon eBay $7.99 |
| 503-0365 | Clamp, Hose | 1 | Hose | Amazon eBay |
| 503-0446 | Clamp, Hose | 2 | Hose | Amazon eBay |
| 503-0465 | Clamp, Hose | 2 | Hose | Amazon eBay $23.99 |
| 503-0685 | Clamp, Hose | 1 | Hose | Amazon eBay $15.00 |
| 503-1274 | Hose, Radiator Drain | 1 | Hose | Amazon eBay |
| 503-1379-01 | Hose, Radiator | 2 | Hose | Amazon eBay |
| 503-1391-01 | Hose, Radiator | 17 | Hose | Amazon eBay |
| 503-1595 | Hose | 1 | Hose | Amazon eBay |
| 503-1599 | Hose, Radiator | 1 | Hose | Amazon eBay |
| 505-0059 | Sensor, Water Pressure | 1 | Sensor | Amazon eBay |
| 509-0125 | Key, Handle - Screw, Lock (3/8 - 16 x .75") | 1 | Seal | Amazon eBay |
| 526-0451 | Washer, Flat - Stainless Steel (M8) | 2 | Washer | Amazon eBay |
| 750-1010 | Screw, Machine - Fillister Head (1/4-20 x 1") | 1 | Screw | Amazon eBay |
| 102-1237 | Adapter, Drain-Oil | 1 | Service part / kit | Amazon eBay |
| 130-1788 | Cap, Radiator | Service part / kit | Amazon eBay | |
| 130-3064 | Radiator | 36 | Service part / kit | Amazon eBay |
| 130-3080 | Fan, Radiator | Service part / kit | Amazon eBay | |
| 130-3212 | Advanced Efficiency Hydraulic/Transmission Filter | 1 | Service part / kit | Amazon eBay FridayParts $65.40 |
| 140-1260 | Fitting, Safety Filter | 2 | Service part / kit | Amazon eBay $116.27 NAPA $10.13 |
| 140-1548 | Indicator, Service | 1 | Service part / kit | Amazon eBay $49.99 NAPA $32.16 |
| 140-2240 | Cleaner, Air (Incl Element) | 1 | Service part / kit | Amazon eBay |
| 150-1456 | Bracket and Point Assembly | 1 | Service part / kit | Amazon eBay |
| 150-2218-02 | Actuator, Governor (24VLX) | Service part / kit | Amazon eBay | |
| 151-0402 | Potentiometer-Speed Control (R11) | 1 | Service part / kit | Amazon eBay SinoCMP $299.00 FridayParts $365.00 |
| 151-0611 | Control, Governor | 1 | Service part / kit | Amazon eBay FridayParts $249.00 |
| 155-2062-03 | Cap, Rain | Service part / kit | eBay | |
| 155-2175 | Clamp, Muffler 4" | 1 | Service part / kit | Amazon eBay |
| 155-2251 | Silencer | Service part / kit | eBay | |
| 155-2253 | Adapter, Exhaust | 1 | Service part / kit | eBay $139.00 |
| 155-2307 | Silencer | 1 | Service part / kit | Amazon eBay |
| 187-0007 | INJ | Service part / kit | Amazon eBay | |
| 187-0012 | Filter, Fuel | 1 | Service part / kit | Amazon eBay $149.89 NAPA $17.15 |
| 187-0015 | Filter, Oil | 1 | Service part / kit | Amazon eBay $39.95 |
| 193-0330 | Gauge, Oil Temperature (M6) | 1 | Service part / kit | Amazon eBay |
| 205-0089 | Fan, Cooling-Generator | 1 | Service part / kit | Amazon eBay |
| 232-2445 | Suppressor, Voltage | Service part / kit | eBay | |
| 302-0608 | Ratio | 3 | Service part / kit | Amazon eBay |
| 302-0885 | Screw, Machine - Round Head, Black Zinc Finish (#6-32 X 1/2") | 1 | Service part / kit | Amazon eBay |
| 302-1790 | Ammeter (M13) | Service part / kit | eBay | |
| 302-1873-01 | Tachometer (M16) | Service part / kit | eBay | |
| 303-0261 | External Adjust Used With VRAS-2 Voltage Regulator Assembly With External Adjust | 1 | Service part / kit | Amazon eBay |
| 306-0036 | Point Assembly, Overspeed (Includes Contact And Screw) | 1 | Service part / kit | eBay |
| 308-0784 | 6 193-0250 2 7 193-0352 1 8 193-0351 1 o 302-1642 1 10 151-0402 1 11 302-0885 1 815-0385 | 1 | Service part / kit | eBay $248.00 |
| 308-0785 | Component 308-0785 | 1 | Service part / kit | Amazon eBay |
| 309-0553 | Switch, Temperature-Pre Water | 1 | Service part / kit | Amazon eBay $127.46 |
| 309-0554 | SWITCH WATER | 1 | Service part / kit | Amazon eBay $159.00 |
| 315-0635 | Transformer, Current | 1 | Service part / kit | Amazon eBay |
| 315-0636 | Transformer, Current | 2 | Service part / kit | Amazon eBay |
| 321-0094 | Fuse, Cartridge - 5 Amp (F4, F5) | 2 | Service part / kit | Amazon eBay |
| 321-0231 | Fuse, Cartridge - 15 Amp (F3) | 1 | Service part / kit | Amazon eBay |
| 322-0017 | Lamp, Incandescent - 28 VDC (DS11) | 1 | Service part / kit | Amazon eBay |
| 322-0369-02 | Lamp, Incandescent - 1/3 Watt 28 VDC | 12 | Service part / kit | Amazon eBay $78.00 |
| 323-1200 | # Socket, Contact (Used in J1, J2) | 1 | Service part / kit | Amazon eBay |
| 323-1304 | tiotming, Umector | 1 | Service part / kit | Amazon eBay |
| 323-1306 | Genset component (SJB series) | 1 | Service part / kit | Amazon eBay |
| 332-0051 | Clamp, Loop | 1 | Service part / kit | Amazon eBay |
| 332-0052 | Clamp, Loop | 1 | Service part / kit | Amazon eBay |
| 332-0941 | *Tie, Cable | 2 | Service part / kit | Amazon eBay |
| 332-1279 | Terminal. Lug - Ring (3/8 | 6 | Service part / kit | Amazon eBay |
| 332-1445 | Tie, Cable 18 98-5219 1 Decal - Panel Front (Not I l l u s t r a t e d ) 19 98-5220 1 Decal | 3 | Service part / kit | Amazon eBay |
| 332-1473 | Lug, Solderless | 1 | Service part / kit | Amazon eBay |
Service & wear parts shared with every machine that uses this engine. Confirm the exact part for your serial number.
Aftermarket parts that fit this excavator
6065mm FridayParts $15.99 144-1013 KuduParts $151.00 FridayParts $153.24 5P-4924 FridayParts $29.50 225-4646 FridayParts $121.00 289-7733 FridayParts $53.99 349-4119 FridayParts $89.95 393-7887 FridayParts $50.99 283-6179 FridayParts $45.99 390-4227 FridayParts $53.25 235-7679 FridayParts $30.62 221-8859 FridayParts $33.00 SinoCMP $99.00 106-0178 FridayParts $33.00 176-1932 FridayParts $64.99 176-1931 FridayParts $64.99 366-8821 FridayParts $2087.56 SinoCMP $2389.00 7Y-1901 FridayParts $34.13 099-0183 FridayParts $35.99 3104980 KuduParts $104.00 FridayParts $109.99 358-9085 FridayParts $1299.99 SinoCMP $1599.00 260-5656 FridayParts $120.90 326-4756 FridayParts $120.90 366-9313 FridayParts $39.99 093-7521 eBay $29.99 NAPA $45.52 KuduParts $18.00 FridayParts $19.99 099-6530 FridayParts $14.59 099-6531 FridayParts $15.99 3987171 KuduParts $62.00 FridayParts $63.99 234-6613 FridayParts $128.70 305-7597 FridayParts $92.00 2653662 FridayParts $75.50 297-0529 FridayParts $159.99 394-9459 FridayParts $148.30 355-1352 FridayParts $935.56 418-7954 FridayParts $935.56 178-6538 FridayParts $89.00 266-0136 FridayParts $123.90 309-5768 FridayParts $32.91 SinoCMP $39.00 297-9142 FridayParts $1428.99 352-7176 FridayParts $847.50 3244131 FridayParts $82.00 289-7716 FridayParts $53.99 393-7949 FridayParts $59.99 353-0538 FridayParts $139.00 162-4696 FridayParts $65.99 6V-7238 FridayParts $39.99 094-0580 FridayParts $19.96 375-8597 KuduParts $58.00 FridayParts $59.99 277-6695 FridayParts $4096.59 352-8147 FridayParts $4096.59 277-6697 FridayParts $4500.99 5I-7655 FridayParts $43.20 245-9205 KuduParts $27.00 FridayParts $36.62 259-5296 FridayParts $1809.00 CA310-4980 KuduParts $104.00 2457931 FridayParts $100.80 SinoCMP $119.00 KuduParts $129.00 CA2457931 KuduParts $129.00 CA3987171 KuduParts $62.00 H55440 KuduParts $62.00 CA1106326 KuduParts $30.00 1106326 Amazon eBay $40.00 NAPA $62.25 KuduParts $30.00 FridayParts $131.99 CA1106331 KuduParts $30.00
Parts listed by aftermarket suppliers as fitting this excavator — leads compiled from supplier catalogs; verify the exact part for your serial number.
Common questions
What engine is in the Caterpillar 312D?
The Caterpillar 312D excavator is powered by the 4B/6B/6C engine.
About
Caterpillar 312D — excavator. Specifications and parts compiled from manufacturer documents.