FUEL SYSTEM
FILTER GP-FUELLINES GP-FUEL
LINES GP-FUEL INJECTION
LINES GP-FUEL
FILTER GP-FUEL
FUEL SYSTEM
FILTER GP-FUEL#SEBP40020330
290-6530: FITTING GP-FUEL FILTER
290-6530 FITTING GP-FUEL FILTER -RH
FOR USE WITH @@@@@242-9759@@@@@, @@@@@246-5109@@@@@, C-12 MARINE HEAT EXCHANGER/KEEL, OR
AN ATTACHMENT
FOR USE WITH @@@@@242-9759@@@@@, @@@@@246-5109@@@@@, C-12 MARINE HEAT EXCHANGER/KEEL, OR
AN ATTACHMENT
#SEBP40020331
116-5420: FITTING GP-FUEL LINES
116-5420 FITTING GP-FUEL LINES
7/8-14X45-DEG FLARE, 90-DEG ELBOW. #10 FUEL SUPPLY CONNECTION
AN ATTACHMENT
7/8-14X45-DEG FLARE, 90-DEG ELBOW. #10 FUEL SUPPLY CONNECTION
AN ATTACHMENT
Parts for your C12 MARINE ENGINE:
CATERPILLAR SIS#SEBP40020332
117-0183: FITTING GP-FUEL LINES
117-0183 FITTING GP-FUEL LINES
S/N NFL100-UP; C1Z1-UP
NUMBER 10 STRAIGHT FUEL INLET FITTING WITHOUT BLEED AND HAS 7/8-14X45-DEG FLARE
ALSO AN ATTACHMENT
S/N NFL100-UP; C1Z1-UP
NUMBER 10 STRAIGHT FUEL INLET FITTING WITHOUT BLEED AND HAS 7/8-14X45-DEG FLARE
ALSO AN ATTACHMENT
Parts for your C12 MARINE ENGINE:
CATERPILLAR SIS#SEBP40020333
117-0184: FITTING GP-FUEL LINES
117-0184 FITTING GP-FUEL LINES
5/8-18X45 DEG FLARE-#6 STRAIGHT CONNECTOR
AN ATTACHMENT
5/8-18X45 DEG FLARE-#6 STRAIGHT CONNECTOR
AN ATTACHMENT
Parts for your C12 MARINE ENGINE:
CATERPILLAR SIS#SEBP40020334
212-3468: INJECTOR GP-FUEL
212-3468 INJECTOR GP-FUEL
S/N NFL100-UP; C1Z1-UP
PART OF 192-2070 PUMP GP-FUEL INJECTION
S/N NFL100-UP; C1Z1-UP
PART OF 192-2070 PUMP GP-FUEL INJECTION
Parts for your C12 MARINE ENGINE:
CATERPILLAR SIS#SEBP40020335
125-0032: LINES GP-FLEXIBLE FUEL
Parts for your C12 MARINE ENGINE:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 313-9614 | [1] | ADAPTER AS | |
| 2R-6806 | [1] | CONNECTOR | ||
| 214-7568 | [1] | SEAL-O-RING | ||
| 2. | 9M-6522 | [1] | CONNECTOR (1/2-14 NPTF) | |
| 3. | 6K-9194 | [1] | ELBOW | |
| 4. | 9Y-7332 I | [1] | HOSE AS | |
| 5. | 351-0258 | [1] | ELBOW AS | |
| 1P-7625 | [1] | ELBOW | ||
| 238-5080 | [1] | SEAL-O-RING | ||
| 6. | 124-5268 I | [1] | HOSE AS | |
| I | REFER TO HYDRAULIC INFORMATION SYSTEM | |||
#SEBP40020336
242-9759: LINES GP-FUEL
Parts for your C12 MARINE ENGINE:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 9X-8267 | [2] | WASHER (6.6X12X2-MM THK) | |
| 2. | 1P-0436 | [1] | GASKET (FUEL PRIMING PUMP) | |
| 3. | 2S-2301 | [2] | SPACER (0.344X0.75X0.646-IN THK) | |
| 5. | 9Y-8258 | [1] | MANIFOLD-FUEL | |
| 6. | 054-5060 | [1] | TUBE | |
| 8. | 137-5541 | [1] | PUMP GP-FUEL PRIMING | |
| 061-7539 | [1] | SEAL-O-RING | ||
| 9. | 138-5049 | [1] | ELBOW | |
| 10. | 187-6122 | [1] | PLATE | |
| 11. | 233-6742 Y | [1] | VALVE GP-CHECK (FUEL) | |
| 12. | 238-6760 | [1] | ADAPTER-MANIFOLD | |
| 13. | 244-1437 | [1] | PLATE | |
| 14. | 244-1438 | [1] | TUBE AS | |
| 15. | 244-1439 | [1] | TUBE AS | |
| 16. | 244-5930 I | [1] | HOSE AS | |
| 17. | 244-5931 I | [1] | HOSE AS | |
| 18. | 005-4362 | [1] | ELBOW | |
| 19. | 171-4364 | [3] | SPACER (11X19X11.5-MM THK) | |
| 20. | 128-8557 | [1] | BASE AS-FILTER (PRIMARY FUEL FILTER) | |
| 7E-5346 | [1] | VALVE AS | ||
| 22. | 186-0358 | [1] | CLIP (LOOP) | |
| 23. | 1B-7182 | [1] | BOLT (5/16-18X1.25-IN) | |
| 24. | 1R-0749 | [1] | FILTER-FUEL (ADVANCED EFFICIENCY) | |
| 26. | 2M-9780 | [1] | SEAL-O-RING | |
| 27. | 164-6867 | [1] | CONNECTOR AS | |
| 2R-6806 | [1] | CONNECTOR | ||
| 3J-1907 | [1] | SEAL-O-RING | ||
| 28. | 2Y-5829 M | [1] | NUT (M10X1.5-THD) | |
| 30. | 3K-0360 | [1] | SEAL-O-RING | |
| 31. | 3P-0647 | [2] | SEAL-O-RING | |
| 32. | 5P-0537 | [1] | WASHER-HARD (7.2X14.5X2-MM THK) | |
| 33. | 5P-3456 | [6] | SEAL-O-RING | |
| 34. | 5P-7970 M | [2] | NUT (M8X1.25-THD) | |
| 36. | 5P-9297 | [6] | CLIP (LOOP) | |
| 37. | 6V-3940 M | [1] | BOLT (M8X1.25X25-MM) | |
| 38. | 6V-4248 M | [2] | BOLT (M10X1.5X25-MM) | |
| 40. | 6V-5048 | [3] | SEAL-O-RING | |
| 41. | 6V-5218 M | [4] | BOLT (M8X1.25X35-MM) | |
| 42. | 6V-5219 M | [2] | BOLT (M8X1.25X40-MM) | |
| 43. | 6V-5839 | [6] | WASHER (11X21X2.5-MM THK) | |
| 44. | 6V-6317 M | [1] | BOLT (M10X1.5X20-MM) | |
| 45. | 6V-7981 M | [1] | BOLT (M10X1.5X70-MM) | |
| 46. | 6V-8225 M | [1] | NUT (M6X1-THD) | |
| 48. | 6V-8490 M | [1] | BOLT (M6X1X25-MM) | |
| 49. | 7B-2742 | [1] | BOLT (1/4-20X1.25-IN) | |
| 50. | 7E-2707 | [2] | CLIP | |
| 51. | 7K-4129 | [3] | UNION-FLARED | |
| 52. | 8T-0100 M | [4] | BOLT (M8X1.25X60-MM) | |
| 53. | 9M-1974 | [13] | WASHER-HARD (8.8X16X2-MM THK) | |
| 54. | 148-8407 | [1] | PLUG AS | |
| 9S-4191 | [1] | PLUG (9/16-18-THD) | ||
| 3J-1907 | [1] | SEAL-O-RING | ||
| 55. | 9S-8002 | [3] | PLUG (7/16-20-THD) | |
| 56. | 162-0177 | [3] | PLUG AS | |
| (EACH INCLUDES) | ||||
| 9S-8004 | [1] | PLUG (9/16-18-THD) | ||
| 3J-1907 | [1] | SEAL-O-RING | ||
| I | REFER TO HYDRAULIC INFORMATION SYSTEM | |||
| M | METRIC PART | |||
| Y | SEPARATE ILLUSTRATION | |||
#SEBP40020337
310-1560: LINES GP-FUEL
Parts for your C12 MARINE ENGINE:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 1P-0436 | [1] | GASKET (FUEL PRIMING PUMP) | |
| 2. | 2S-2301 | [2] | SPACER (0.344X0.75X0.646-IN THK) | |
| 3. | 9Y-8258 | [1] | MANIFOLD-FUEL | |
| 4. | 054-5060 | [1] | TUBE | |
| 5. | 128-8557 | [1] | BASE AS-FILTER (PRIMARY FUEL FILTER) | |
| 7E-5346 | [1] | VALVE AS | ||
| 127-0291 | [1] | BASE AS | ||
| 9S-4167 | [1] | STUD-HOLLOW (1-14X1.47-IN) | ||
| 6. | 137-5541 | [1] | PUMP GP-FUEL PRIMING | |
| 061-7539 | [1] | SEAL-O-RING | ||
| 229-3218 | [2] | VALVE AS | ||
| 7. | 138-5049 | [1] | ELBOW | |
| 8. | 171-4364 | [4] | SPACER (11X19X11.5-MM THK) | |
| 9. | 187-6122 | [1] | PLATE | |
| 10. | 193-3982 | [1] | TUBE AS | |
| 11. | 233-6742 Y | [1] | VALVE GP-CHECK (FUEL) | |
| 12. | 238-6760 | [1] | ADAPTER-MANIFOLD | |
| 13. | 244-1437 | [1] | PLATE | |
| 14. | 244-1438 | [1] | TUBE AS | |
| 15. | 244-1439 | [1] | TUBE AS | |
| 16. | 244-5930 I | [1] | HOSE AS | |
| 17. | 244-5931 I | [1] | HOSE AS | |
| 18. | 005-4362 | [1] | ELBOW | |
| 19. | 148-8407 | [1] | PLUG AS | |
| 3J-1907 | [1] | SEAL-O-RING | ||
| 9S-4191 | [1] | PLUG (9/16-18-THD) | ||
| 21. | 1B-7182 | [1] | BOLT (5/16-18X1.25-IN) | |
| 22. | 1R-0749 | [1] | FILTER-FUEL (ADVANCED EFFICIENCY) | |
| 23. | 2M-9780 | [1] | SEAL-O-RING | |
| 24. | 2R-6806 | [1] | CONNECTOR | |
| 25. | 8T-4133 M | [1] | NUT (M10X1.5-THD) | |
| 26. | 3J-1907 | [5] | SEAL-O-RING | |
| 27. | 3K-0360 | [1] | SEAL-O-RING | |
| 28. | 3P-0647 | [2] | SEAL-O-RING | |
| 29. | 5P-0537 | [1] | WASHER-HARD (7.2X14.5X2-MM THK) | |
| 30. | 5P-3456 | [6] | SEAL-O-RING | |
| 31. | 5P-7970 M | [2] | NUT (M8X1.25-THD) | |
| 32. | 5P-9297 | [8] | CLIP (LOOP) | |
| 33. | 8T-4908 M | [1] | BOLT (M8X1.25X25-MM) | |
| 34. | 8T-4195 M | [2] | BOLT (M10X1.5X30-MM) | |
| 35. | 6V-5048 | [3] | SEAL-O-RING | |
| 36. | 6V-5218 M | [4] | BOLT (M8X1.25X35-MM) | |
| 37. | 6V-5219 M | [2] | BOLT (M8X1.25X40-MM) | |
| 38. | 6V-5839 | [1] | WASHER (11X21X2.5-MM THK) | |
| 40. | 6V-7981 M | [1] | BOLT (M10X1.5X70-MM) | |
| 41. | 5C-2890 M | [1] | NUT (M6X1-THD) | |
| 42. | 8T-4971 M | [1] | BOLT (M6X1X30-MM) | |
| 43. | 7B-2742 | [1] | BOLT (1/4-20X1.25-IN) | |
| 44. | 7E-2707 | [2] | CLIP | |
| 45. | 7K-4129 | [3] | UNION-FLARED | |
| 46. | 8T-0100 M | [4] | BOLT (M8X1.25X60-MM) | |
| 47. | 9M-1974 | [13] | WASHER-HARD (8.8X16X2-MM THK) | |
| 48. | 9S-8002 | [3] | PLUG (7/16-20-THD) | |
| 49. | 9S-8004 | [3] | PLUG (9/16-18-THD) | |
| 50. | 9X-8256 | [2] | WASHER (6.6X12X2-MM THK) | |
| 51. | 4J-7533 | [1] | SEAL-O-RING | |
| 52. | 9S-8001 | [1] | PLUG | |
| 53. | 8T-4121 | [7] | WASHER-HARD (11X21X2.5-MM THK) | |
| 54. | 8T-4137 M | [1] | BOLT (M10X1.5X20-MM) | |
| 55. | 6V-0852 | [1] | CAP-DUST | |
| 56. | 6V-3965 | [1] | FITTING (QUICK DISCONNECT) | |
| I | REFER TO HYDRAULIC INFORMATION SYSTEM | |||
| M | METRIC PART | |||
| Y | SEPARATE ILLUSTRATION | |||
#SEBP40020338
310-1560: LINES GP-FUEL
Parts for your C12 MARINE ENGINE:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 1P-0436 | [1] | GASKET (FUEL PRIMING PUMP) | |
| 2. | 2S-2301 | [2] | SPACER (0.344X0.75X0.646-IN THK) | |
| 3. | 9Y-8258 | [1] | MANIFOLD-FUEL | |
| 4. | 054-5060 | [1] | TUBE | |
| 5. | 128-8557 | [1] | BASE AS-FILTER (PRIMARY FUEL FILTER) | |
| 7E-5346 | [1] | VALVE AS | ||
| 127-0291 | [1] | BASE AS | ||
| 9S-4167 | [1] | STUD-HOLLOW (1-14X1.47-IN) | ||
| 6. | 137-5541 | [1] | PUMP GP-FUEL PRIMING | |
| 061-7539 | [1] | SEAL-O-RING | ||
| 229-3218 | [2] | VALVE AS | ||
| 7. | 138-5049 | [1] | ELBOW | |
| 8. | 171-4364 C | [2] | SPACER (11X19X11.5-MM THK) | |
| 9. | 187-6122 | [1] | PLATE | |
| 10. | 193-3982 | [1] | TUBE AS | |
| 11. | 233-6742 Y | [1] | VALVE GP-CHECK (FUEL) | |
| 12. | 238-6760 | [1] | ADAPTER-MANIFOLD | |
| 13. | 244-1437 | [1] | PLATE | |
| 14. | 367-3826 C | [1] | TUBE AS-FUEL | |
| 15. | 244-1439 | [1] | TUBE AS | |
| 16. | 244-5930 I | [1] | HOSE AS | |
| 17. | 244-5931 I | [1] | HOSE AS | |
| 18. | 005-4362 | [1] | ELBOW | |
| 19. | 148-8407 | [1] | PLUG AS | |
| 3J-1907 | [1] | SEAL-O-RING | ||
| 9S-4191 | [1] | PLUG (9/16-18-THD) | ||
| 20. | 090-8747 C | [2] | SPACER (11X19X32-MM THK) | |
| 21. | 1B-7182 | [1] | BOLT (5/16-18X1.25-IN) | |
| 22. | 1R-0749 | [1] | FILTER-FUEL (ADVANCED EFFICIENCY) | |
| 23. | 2M-9780 | [1] | SEAL-O-RING | |
| 24. | 2R-6806 | [1] | CONNECTOR | |
| 25. | 8T-4133 M | [1] | NUT (M10X1.5-THD) | |
| 26. | 3J-1907 | [5] | SEAL-O-RING | |
| 27. | 3K-0360 | [1] | SEAL-O-RING | |
| 28. | 3P-0647 | [2] | SEAL-O-RING | |
| 29. | 5P-0537 | [1] | WASHER-HARD (7.2X14.5X2-MM THK) | |
| 30. | 5P-3456 | [6] | SEAL-O-RING | |
| 31. | 5P-7970 M | [2] | NUT (M8X1.25-THD) | |
| 32. | 5P-9297 | [8] | CLIP (LOOP) | |
| 33. | 8T-4908 M | [1] | BOLT (M8X1.25X25-MM) | |
| 34. | 8T-4195 M | [2] | BOLT (M10X1.5X30-MM) | |
| 35. | 6V-5048 | [3] | SEAL-O-RING | |
| 36. | 6V-5218 M | [4] | BOLT (M8X1.25X35-MM) | |
| 37. | 6V-5219 M | [2] | BOLT (M8X1.25X40-MM) | |
| 38. | 6V-5839 | [1] | WASHER (11X21X2.5-MM THK) | |
| 40. | 6V-7981 M | [1] | BOLT (M10X1.5X70-MM) | |
| 41. | 5C-2890 M | [1] | NUT (M6X1-THD) | |
| 42. | 8T-4971 M | [1] | BOLT (M6X1X30-MM) | |
| 43. | 7B-2742 | [1] | BOLT (1/4-20X1.25-IN) | |
| 44. | 7E-2707 | [2] | CLIP | |
| 45. | 7K-4129 | [3] | UNION-FLARED | |
| 46. | 8T-0100 CM | [2] | BOLT (M8X1.25X60-MM) | |
| 47. | 9M-1974 | [13] | WASHER-HARD (8.8X16X2-MM THK) | |
| 48. | 9S-8002 | [3] | PLUG (7/16-20-THD) | |
| 49. | 9S-8004 | [3] | PLUG (9/16-18-THD) | |
| 50. | 9X-8256 | [2] | WASHER (6.6X12X2-MM THK) | |
| 51. | 4J-7533 | [1] | SEAL-O-RING | |
| 52. | 9S-8001 | [1] | PLUG | |
| 53. | 8T-4121 | [7] | WASHER-HARD (11X21X2.5-MM THK) | |
| 54. | 8T-4137 M | [1] | BOLT (M10X1.5X20-MM) | |
| 55. | 6V-0852 | [1] | CAP-DUST | |
| 56. | 6V-3965 | [1] | FITTING (QUICK DISCONNECT) | |
| 57. | 8T-3647 CM | [2] | BOLT (M8X1.25X80-MM) | |
| 58. | 4P-7582 C | [1] | CLIP (LADDER) | |
| C | CHANGE FROM PREVIOUS TYPE | |||
| I | REFER TO HYDRAULIC INFORMATION SYSTEM | |||
| M | METRIC PART | |||
| Y | SEPARATE ILLUSTRATION | |||
#SEBP40020339
245-4781: LINES GP-FUEL FILTER
245-4781 LINES GP-FUEL FILTER
AN ATTACHMENT
AN ATTACHMENT
Parts for your C12 MARINE ENGINE:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 1P-0436 | [1] | GASKET (FUEL PRIMING PUMP) | |
| 2. | 6V-0682 | [1] | VALVE-DRAIN | |
| 3. | 137-5541 | [1] | PUMP GP-FUEL PRIMING (HAND) | |
| 4. | 173-1813 | [1] | MANIFOLD | |
| 5. | 183-3399 C | [4] | CONNECTOR AS | |
| (EACH INCLUDES) | ||||
| 6V-8636 | [1] | CONNECTOR | ||
| 214-7568 | [1] | SEAL-O-RING | ||
| 228-7089 | [1] | SEAL-O-RING | ||
| 6. | 194-7090 | [1] | BRACKET | |
| 7. | 197-4640 I | [1] | HOSE AS | |
| 8. | 295-1803 C | [1] | ELBOW AS | |
| 214-7568 | [1] | SEAL-O-RING | ||
| 9. | 245-4782 Y | [1] | FILTER GP-FUEL | |
| 10. | 245-4784 | [1] | TUBE AS | |
| 11. | 245-4785 | [1] | TUBE AS | |
| 12. | 246-5782 CI | [1] | HOSE AS | |
| 13. | 262-4818 | [1] | BRACKET | |
| 14. | 262-4821 | [1] | TRAY AS | |
| 15. | 283-8102 | [1] | TUBE AS | |
| 16. | 284-0968 | [5] | BRACKET AS | |
| 17. | 339-1587 CI | [1] | HOSE AS | |
| 18. | 107-3877 C | [1] | CONNECTOR | |
| 19. | 148-8336 | [1] | CONNECTOR AS | |
| 3J-1907 | [1] | SEAL-O-RING | ||
| 6V-8397 | [1] | SEAL-O-RING | ||
| 6V-8636 | [1] | CONNECTOR | ||
| 20. | 148-8378 C | [2] | ELBOW AS | |
| (EACH INCLUDES) | ||||
| 3J-1907 | [1] | SEAL-O-RING | ||
| 6V-8397 | [1] | SEAL-O-RING | ||
| 6V-8724 | [1] | ELBOW | ||
| 21. | 148-8407 C | [2] | PLUG AS | |
| (EACH INCLUDES) | ||||
| 3J-1907 | [1] | SEAL-O-RING | ||
| 9S-4191 | [1] | PLUG (9/16-18-THD) | ||
| 22. | 148-8433 C | [1] | TEE AS | |
| 6V-8397 | [2] | SEAL-O-RING | ||
| 6V-9836 | [1] | TEE-SWIVEL | ||
| 23. | 164-5570 C | [1] | UNION AS | |
| 6V-8397 | [2] | SEAL-O-RING | ||
| 6V-8730 | [1] | UNION (FACE SEAL) | ||
| 24. | 4D-7794 | [6] | CLIP | |
| 25. | 6V-1820 M | [4] | BOLT (M10X1.5X30-MM) | |
| 26. | 6V-3940 M | [2] | BOLT (M8X1.25X25-MM) | |
| 27. | 6V-4248 M | [3] | BOLT (M10X1.5X25-MM) | |
| 28. | 6V-5839 C | [10] | WASHER (11X21X2.5-MM THK) | |
| 29. | 6V-5842 M | [3] | BOLT (M10X1.5X40-MM) | |
| 30. | 228-7089 C | [1] | SEAL-O-RING | |
| 31. | 6V-8918 | [1] | BOLT (5/16-18X1.25-IN) | |
| 32. | 232-0343 CY | [1] | REGULATOR GP-FUEL PRESSURE | |
| 33. | 7X-2501 | [1] | BOLT (1/4-20X1.25-IN) | |
| 34. | 8T-4200 M | [5] | BOLT (M8X1.25X16-MM) | |
| 35. | 8T-4205 | [1] | WASHER-HARD (7.2X14.5X2-MM THK) | |
| 36. | 8T-4224 C | [6] | WASHER-HARD (8.8X16X2-MM THK) | |
| 37. | 8T-6767 | [2] | PLUG-PIPE (3/8-18-THD) | |
| 38. | 9M-1974 | [2] | WASHER-HARD (8.8X16X2-MM THK) | |
| C | CHANGE FROM PREVIOUS TYPE | |||
| I | REFER TO HYDRAULIC INFORMATION SYSTEM | |||
| M | METRIC PART | |||
| Y | SEPARATE ILLUSTRATION | |||
Information:
FUEL SYSTEM
FILTER GP-FUEL
Engine News
New Fuel Filter Covers and Oil Filter Covers Are Used on Certain Marine Engines {1261, 1308}
2010/10/01
2010/10/01
A New Specification Has Been Issued for the Primary Fuel Filter Filtration {1260}
A New Specification Has Been Issued for the Primary Fuel Filter Filtration {1260}
A New Specification Has Been Issued for the Primary Fuel Filter Filtration {1260}
Operation and Maintenance Manual
Special Instruction
A New Torque Value Is Used for the Fuel Pressure Regulator Valves on Certain Diesel Engines{1251, 1262, 1274}
A New Torque Value Is Used for the Fuel Pressure Regulator Valves on Certain Diesel Engines{1251, 1262, 1274}
A New Torque Value Is Used for the Fuel Pressure Regulator Valves on Certain Diesel Engines{1251, 1262, 1274}
Specifications
Tool Operating Manual
20 GPM Portable Fuel Filtration System {0374, 0599, 0706, 1250, 1256, 1261}
20 GPM Portable Fuel Filtration System {0374, 0599, 0706, 1250, 1256, 1261}
20 GPM Portable Fuel Filtration System {0374, 0599, 0706, 1250, 1256, 1261}
Disassembly and Assembly