BASIC ENGINE
PAN GP-OILPISTON & ROD GP
CYLINDER BLOCK GP
PAN GP-OIL
PULLEY GP
VALVE MECHANISM GP
LUBRICATION SYSTEM
FILLER GP-ENGINE OILFILTER GP-ENGINE OIL
BASIC ENGINE
PAN GP-OIL#M00852750070
378-0594: PAN GP-OIL
378-0594 PAN GP-OIL
S/N 4501-UP; E7A1-UP
WITHOUT OIL LEVEL SENSOR
PART OF 502-0264, 555-5560, 555-7255 ENGINE AR-PRIMARY
S/N 4501-UP; E7A1-UP
WITHOUT OIL LEVEL SENSOR
PART OF 502-0264, 555-5560, 555-7255 ENGINE AR-PRIMARY
Parts for your 320 EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 8T-0269 M | [2] | BOLT-SOCKET HEAD (M6X1X20-MM) | |
| 2. | 6I-0654 M | [1] | BOLT (M10X1.5X25-MM) | |
| 3. | 230-8094 | [1] | BRIDGE | |
| 4. | 351-4749 | [1] | GASKET-OIL PAN | |
| 5. | 539-7274 | [1] | PAN GP-OIL | |
| 5A. | 8L-2786 | [2] | SEAL-O-RING | |
| 5B. | 9S-4185 | [2] | PLUG (3/4-16-THD) | |
| 6. | 6I-0217 M | [28] | BOLT (M8X1.25X20-MM) | |
| 7. | 6I-0260 M | [2] | BOLT (M8X1.25X25-MM) | |
| 8. | 6I-0572 M | [3] | BOLT (M8X1.25X20-MM) | |
| 9. | 275-9897 | [1] | BRACKET | |
| 10. | 285-2991 | [1] | TUBE AS-OIL SUCTION | |
| 236-5511 | [1] | CLIP-PIPE | ||
| 11. | 6I-4681 | [1] | GASKET | |
| M | METRIC PART | |||
#M00852750071
374-6301: PISTON & ROD GP
Parts for your 320 EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 331-0290 | [6] | CONNECTING ROD GP | |
| (EACH INCLUDES) | ||||
| 1A. | 276-7478 | [1] | BUSHING | |
| 1B. | 323-9312 M | [2] | BOLT (M10X1X50-MM) | |
| 2. | 450-5996 J | [6] | PISTON GP | |
| 391-3732 AB | PISTON GP (0.5-MM OS) | |||
| 391-3735 AB | PISTON GP (1-MM OS) | |||
| 3. | 317-5482 P | [6] | BEARING | |
| 4. | P | [6] | BEARING (LOWER) | |
| 5. | 124-3536 J | [12] | RING-RETAINING | |
| AVAILABLE REPAIR KIT(S): | ||||
| 276-7476 BC | [1] | KIT-PISTON RING (STANDARD) | ||
| (INCLUDES RINGS) | ||||
| 380-2065 AB | KIT-PISTON RING (0.5-MM OS) | |||
| (INCLUDES RINGS) | ||||
| 466-4849 AB | KIT-PISTON RING (1-MM OS) | |||
| (INCLUDES RINGS) | ||||
| 436-7781 P | [1] | KIT-BEARING (CONNECTING ROD)(STANDARD) | ||
| (INCLUDES BEARINGS) | ||||
| 480-4489 AB | KIT-BEARING (0.254-MM US) | |||
| (INCLUDES BEARINGS) | ||||
| 480-4490 AB | KIT-BEARING (0.51-MM US) | |||
| (INCLUDES BEARINGS) | ||||
| 480-4491 AB | KIT-BEARING (0.762-MM US) | |||
| (INCLUDES BEARINGS) | ||||
| 444-2190 J | [1] | KIT-PISTON | ||
| (INCLUDES PIN, PISTON RINGS, RETAINING RINGS & PISTON) | ||||
| A | NOT PART OF THIS GROUP | |||
| B | USE AS REQUIRED | |||
| C | CHANGE FROM PREVIOUS TYPE | |||
| J | KIT MARKED J SERVICES PART(S) MARKED J | |||
| M | METRIC PART | |||
| P | KIT MARKED P SERVICES PART(S) MARKED P | |||
#M00852750072
486-3208: PISTON & ROD GP
Parts for your 320 EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 124-3536 L | [12] | RING-RETAINING | |
| 2. | 317-5482 J | [6] | BEARING | |
| 3. | 331-0290 | [6] | CONNECTING ROD GP | |
| (EACH INCLUDES) | ||||
| 3A. | 276-7478 | [1] | BUSHING | |
| 3B. | 323-9312 M | [2] | BOLT (M10X1X50-MM) | |
| 4. | 473-1373 L | [6] | PISTON GP | |
| 391-3732 AB | PISTON GP (0.5-MM OS) | |||
| 391-3735 AB | PISTON GP (1-MM OS) | |||
| 5. | CT | [6] | BEARING | |
| PARTS SHOWN IN GRAPHIC(S) WITHOUT A REFERENCE NUMBER ARE NOT SERVICED SEPARATELY | ||||
| AVAILABLE REPAIR KIT(S): | ||||
| 360-1564 J | [1] | KIT-BEARING (CONNECTING ROD) | ||
| (INCLUDES BEARINGS) | ||||
| 458-7918 AB | KIT-BEARING (0.25-MM US) | |||
| (INCLUDES BEARINGS) | ||||
| 458-7939 AB | KIT-BEARING (0.50-MM US) | |||
| (INCLUDES BEARINGS) | ||||
| 458-7940 AB | KIT-BEARING (0.75-MM US) | |||
| (INCLUDES BEARINGS) | ||||
| 436-7781 T | [1] | KIT-BEARING (CONNECTING ROD) | ||
| (INCLUDES BEARINGS) | ||||
| 480-4489 AB | KIT-BEARING (0.254-MM US) | |||
| (INCLUDES BEARINGS) | ||||
| 480-4490 AB | KIT-BEARING (0.51-MM US) | |||
| (INCLUDES BEARINGS) | ||||
| 480-4491 AB | KIT-BEARING (0.762-MM US) | |||
| (INCLUDES BEARINGS) | ||||
| 443-9543 L | [1] | KIT-RING (STANDARD) | ||
| (INCLUDES PISTON RINGS) | ||||
| 380-2065 AB | KIT-PISTON RING (0.5-MM OS) | |||
| (INCLUDES PISTON RINGS) | ||||
| 466-4849 AB | KIT-PISTON RING (1-MM OS) | |||
| (INCLUDES PISTON RINGS) | ||||
| 444-2190 L | [1] | KIT-PISTON | ||
| (INCLUDES PISTON RINGS, RETAINING RINGS, PISTON & PIN) | ||||
| A | NOT PART OF THIS GROUP | |||
| B | USE AS REQUIRED | |||
| C | CHANGE FROM PREVIOUS TYPE | |||
| J | KIT MARKED J SERVICES PART(S) MARKED J | |||
| L | KIT MARKED L SERVICES PART(S) MARKED L | |||
| M | METRIC PART | |||
| T | KIT MARKED T SERVICES PART(S) MARKED T | |||
#M00852750073
374-9295: PLUG GP-CYLINDER BLOCK
374-9295 PLUG GP-CYLINDER BLOCK
S/N 4501-UP; E7A1-UP
PART OF 502-0264, 555-5560, 555-7255 ENGINE AR-PRIMARY
S/N 4501-UP; E7A1-UP
PART OF 502-0264, 555-5560, 555-7255 ENGINE AR-PRIMARY
Parts for your 320 EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 277-4223 | [1] | PLUG |
#M00852750074
458-9768: PLUG GP-OIL PAN
458-9768 PLUG GP-OIL PAN
S/N 4501-UP; E7A1-UP
PART OF 502-0264, 555-5560, 555-7255 ENGINE AR-PRIMARY
S/N 4501-UP; E7A1-UP
PART OF 502-0264, 555-5560, 555-7255 ENGINE AR-PRIMARY
Parts for your 320 EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 354-8322 | [2] | PLUG |
#M00852750075
371-2554: PULLEY GP-CRANKSHAFT
371-2554 PULLEY GP-CRANKSHAFT
S/N 4501-UP; E7A1-UP
PART OF 502-0264, 555-5560, 555-7255 ENGINE AR-PRIMARY
S/N 4501-UP; E7A1-UP
PART OF 502-0264, 555-5560, 555-7255 ENGINE AR-PRIMARY
Parts for your 320 EXCAVATOR:
CATERPILLAR SIS#M00852750076
280-1911: ROCKER ARM GP
Parts for your 320 EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 276-9201 | [1] | CLIP | |
| 2. | 276-9206 | [5] | SPRING-SHAFT | |
| 3. | 276-9207 | [1] | SPRING-SHAFT | |
| 4. | 277-5307 | [1] | SHAFT AS-ROCKER ARM | |
| 4A. | 276-9200 | [1] | PLUG-SHAFT END | |
| 5. | 278-5111 | [6] | ROCKER ARM AS | |
| (EACH INCLUDES) | ||||
| 5A. | 276-9230 | [1] | NUT | |
| 5B. | 278-5113 | [1] | SCREW-ADJUSTING (TORX) | |
| 6. | 278-5112 | [6] | ROCKER ARM AS | |
| (EACH INCLUDES) | ||||
| 6A. | 276-9230 | [1] | NUT | |
| 6B. | 278-5113 | [1] | SCREW-ADJUSTING (TORX) | |
| 7. | 280-1912 | [6] | BRACKET | |
| 8. | 280-1913 | [6] | RETAINER | |
| 9. | 280-1914 | [12] | BOLT (M8X1.25X55-MM) | |
#M00852750077
371-2480: ROCKER ARM GP
371-2480 ROCKER ARM GP
S/N 4501-UP; E7A1-UP
PART OF 502-0264, 555-5560, 555-7255 ENGINE AR-PRIMARY
S/N 4501-UP; E7A1-UP
PART OF 502-0264, 555-5560, 555-7255 ENGINE AR-PRIMARY
Parts for your 320 EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 436-0521 | [24] | SPRING-VALVE | |
| 2. | 346-4709 | [12] | BRIDGE GP-VALVE | |
| 3. | 276-8123 | [48] | COTTER-CAP | |
| 4. | 276-8133 | [24] | CAP-VALVE | |
| 5. | 280-1911 Y | [1] | ROCKER ARM GP | |
| 6. | 299-5511 | [24] | SEAL-VALVE STEM | |
| 7. | 309-6678 | [12] | VALVE-INLET | |
| 8. | 339-9637 | [12] | VALVE-EXHAUST | |
| Y | SEPARATE ILLUSTRATION | |||
#M00852750078
503-8040: FILLER GP-ENGINE OIL
503-8040 FILLER GP-ENGINE OIL
S/N 4501-UP; E7A1-UP
PART OF 502-0264, 555-5560, 555-7255 ENGINE AR-PRIMARY
S/N 4501-UP; E7A1-UP
PART OF 502-0264, 555-5560, 555-7255 ENGINE AR-PRIMARY
#M00852750079
490-4821: FILTER & MTG GP-ENGINE OIL
490-4821 FILTER & MTG GP-ENGINE OIL
S/N ZBN1-UP
PART OF 490-4811, 558-1933 INSTALLATION AR-ENGINE
S/N ZBN1-UP
PART OF 490-4811, 558-1933 INSTALLATION AR-ENGINE
Parts for your 320 EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 8T-4192 M | [2] | BOLT (M12X1.75X25-MM) | |
| 2. | 8T-4223 | [2] | WASHER-HARD (13.5X25.5X3-MM THK) | |
| 3. | 141-6518 | [2] | SPACER (13.5X30X10-MM THK) | |
| 4. | 309-5133 | [1] | PLUG AS | |
| 9S-4181 | [1] | PLUG (1-5/16-12-THD) | ||
| 238-5084 | [1] | SEAL-O-RING | ||
| 5. | 309-5137 | [1] | CONNECTOR AS | |
| 6V-8635 | [1] | CONNECTOR | ||
| 228-7093 | [1] | SEAL-O-RING | ||
| 238-5084 | [1] | SEAL-O-RING | ||
| 6. | 319-6212 | [1] | CONNECTOR AS | |
| 6V-8714 | [1] | CONNECTOR | ||
| 228-7093 | [1] | SEAL-O-RING | ||
| 238-5082 | [1] | SEAL-O-RING | ||
| 7. | 319-6220 | [1] | ELBOW AS | |
| 6V-9008 | [1] | ELBOW | ||
| 228-7093 | [1] | SEAL-O-RING | ||
| 238-5084 | [1] | SEAL-O-RING | ||
| 8. | 322-3154 Y | [1] | FILTER GP-ENGINE OIL | |
| 9. | 346-3229 | [1] | BASE AS-FILTER | |
| 232-7599 | [1] | PLUG | ||
| 10. | 377-9576 | [1] | CONNECTOR AS | |
| 8T-6453 | [1] | CONNECTOR | ||
| 228-7093 | [1] | SEAL-O-RING | ||
| 238-5083 | [1] | SEAL-O-RING | ||
| 11. | 451-2182 | [2] | WASHER-HARD (13.5X25.5X3-MM THK) | |
| 12. | 453-3448 M | [2] | BOLT (M12X1.75X45-MM) | |
| 13. | 453-3451 | [4] | WASHER-HARD (8.8X16X2-MM THK) | |
| 14. | 477-9886 | [1] | CLIP (LOOP) | |
| 15. | 524-4347 | [1] | PLATE AS | |
| 16. | 524-4349 I | [1] | HOSE AS | |
| 17. | 524-4350 I | [1] | HOSE AS | |
| 18. | 533-2365 | [1] | PLATE AS | |
| 7Y-6215 | [1] | PLATE | ||
| 8T-3612 M | [4] | NUT-WELD (M8X1.25-THD) | ||
| 19. | 309-5130 | [1] | PLUG AS | |
| 9S-4182 | [1] | PLUG (7/16-20-THD) | ||
| 214-7566 | [1] | SEAL-O-RING | ||
| 20. | 321-8649 | [1] | VALVE AS-FLUID SAMPLING | |
| 8C-3446 | [1] | VALVE-SAMPLING | ||
| 214-7566 | [1] | SEAL-O-RING | ||
| 21. | 8C-3445 | [1] | CAP-DUST | |
| 22. | 8T-4197 M | [4] | BOLT (M8X1.25X40-MM) | |
| I | REFER TO HYDRAULIC INFORMATION SYSTEM | |||
| M | METRIC PART | |||
| Y | SEPARATE ILLUSTRATION | |||
Information:
BASIC ENGINE
PAN GP-OIL
Disassembly and Assembly
