This document provides a parts list for cylinder block components of a DX520LC engine. It includes 17 parts, their descriptions, quantities, serial numbers, and whether they are replaceable. Key information includes the main cylinder block part numbers for different serial number ranges and whether they are replaceable.

1. Fig. 001 CYLINDER BLOCK
DX520LC

2. Fig. 001 CYLINDER BLOCK
Key No Part No Description Qty S.C Serial No ICA Replacable Qty
1 65.01101-6128D BLOCK;CYLINDER 1 ~061020 I 65.01101-6128F 1
1 65.01101-6128F BLOCK;CYLINDER 1 ~071030 Y 65.01101-6128H 1
1 65.01101-6128H BLOCK;CYLINDER 1 ~090530 Y 150102-00008 1
1 150102-00008 BLOCK;CYLINDER 1 090531~120524 I 150102-00411A 1
1 150102-00411A BLOCK ASSY,CYLINDER 1 120525~
1-1 65.01101-6111D BLOCK;CYLINDER 1 D ~061020
1-1 65.01101-6111F BLOCK;CYLINDER 1 D ~071030
1-1 65.01101-6111H BLOCK;CYLINDER 1 D ~090530
1-1 150102-00009 BLOCK;CYLINDER 1 D 090531~120524
1-1 150102-00412A BLOCK;CYLINDER 1 D 120525~
1-1A 65.01101-0111C BLOCK;CYLINDER 1 D ~071030
1-1A 65.01101-0111D BLOCK;CYLINDER 1 D ~090530
1-1A 65.01101-0111F BLOCK,CYLINDER 1 D 090531~120524
1-1A 150102-00401A BLOCK;CYLINDER 1 D 120525~
1-1B 65.01105-6014A BEARING CAP ASS'Y(TH) 1 D ~071030
1-1B 65.01105-6007 BEARING CAP ASS'Y(TH) 1 D ~090530
1-1B 140202-00020 CAP ASSY,BEARING;THRUST 1 D 090531~120524
1-1B 140110-00036 CAP ASSY;BEARING THRUST 1 D 120525~
1-1BA 65.01105-1181 CAP;BEARING 1 D ~071030
1-1BA 65.01105-1053 CAP;BEARING 1 D ~090530
1-1BA 140202-00011 CAP;BEARING 1 D 090531~
1-1BB 65.91301-0071 PIN 2
1-1C 65.01105-6013A BEARING CAP ASS'Y 3 D ~090530
1-1C 140202-00008 BEARING CAP ASS'Y 3 D 090531~
1-1CA 65.01105-1162C CAP;BEARING 1 D ~090530
1-1CA 140202-00011 CAP;BEARING 1 D 090531~
1-1CB 06.22022-3061 PIN;DOWEL 2
1-1D 65.90020-0293B BOLT;BEARING CAP 8
1-1E 06.01494-4316 BOLT;HEX. M12X1.5X85 8
1-1F 65.04410-0018 BUSH;CAMSHAFT 1 B
1-1G 65.04410-0078 BUSH;CAMSHAFT 3 B
1-1H 65.01113-1001B CAP;CP PUMP 1 D ~061020
1-1H 65.01113-1007A CAP;CP PUMP 1 D ~071030
1-1H 65.01113-1008 CAP;CP PUMP 1 D ~090530
1-1H 110910-00022 CAP;CP PUMP 1 D 090531~
1-1I 06.22022-1063 PIN 2
1
DX520LC

3. Key No Part No Description Qty S.C Serial No ICA Replacable Qty
1-1J 65.90020-0094 BOLT;COLLARED HEX. 4
1-2 06.08041-2214 SCREW;PLUG 1 ~090530
1-3 06.56190-0739 RING;SEAL 1 ~090530
1-4 65.91606-0039 PLUG;CORE 4
1-5 65.91606-0037 PLUG;CORE 1
1-6 06.15090-2319 PLUG;CORE 2
1-7 65.90310-0149A SCREW;PLUG M26X1.5 3
1-8 06.56190-0726 SEAL;RING 3
1-9 65.90310-0147 SCREW;PLUG 2
1-10 65.90310-0131 SCREW;PLUG 1
1-11 06.56190-0713 RING;SEAL A18X24 1
1-12 06.08041-2203 SCREW;PLUG M14X1.5 1
1-13 06.56190-0706 SEAL RING A14X20 1
1-14 65.90310-0132 SCREW;PLUG 1
1-15 06.56190-0718 RING;SEAL 1
1-16 06.31641-0615 BALL;STEEL 1
1-17 06.31641-0624 BALL;STEEL 4
10 06.22022-1063 PIN 2
11 06.22022-3563 PIN;DOWEL 2
12 65.91030-0005 PIN 4
13 65.98131-5010 NIPPLE 1
14 06.56190-0706 SEAL RING A14X20 1
15 65.90310-0134 SCREW;PLUG 1
16 06.56190-0732 SEAL;RING 1
17 65.90310-0133 SCREW;PLUG 1
18 06.56190-0726 SEAL;RING 1
19 06.08040-2214 SOCKET SCREW;PLUG 1
20 06.56190-0739 RING;SEAL 1
30 65.06312-0003 CONNECTION 1
31 65.96601-0054 GASKET(C/W PIPE FLANGE) 1
32 06.06225-0812 BOLT;STUD M10X50 2
33 06.16731-2108 WASHER;SPRING 2
34 06.11063-8215 NUT;HEX. M10 2
35 06.08041-2202 SCREW;PLUG M12X1.5 1
36 06.56190-0704 RING;SEAL 1
37 65.91605-0013 COVER 1
40 65.01201-0073B LINER;CYLINDER 6
41 65.96501-0059 O-RING 6 ~120509 Y 401002-00785 6
2
DX520LC

4. Key No Part No Description Qty S.C Serial No ICA Replacable Qty
41 401002-00785 O-RING;CYL LINER 6 120510~
42 51.96501-0412 O-RING 6 ~070327 Y 65.96501-0082 6
42 65.96501-0082 O-RING 6 070328~120509 Y 401002-00786 6
42 401002-00786 O-RING;CYL LINER 6 120510~
43 65.96501-0078 O-RING 6 ~120509 Y 401002-00786 6
43 401002-00786 O-RING;CYL LINER 6 120510~
45 65.01601-2016A FLANGE ASS'Y 6
45A 06.22180-0804 PIN;SPIRAL 1
45B 65.01601-0007A FLANGE;OIL SPRAY NOZZLE 1
46 65.96601A0237 GASKET 6
47 65.98150-0051 SCREW;HOLLOW 6
48 06.56190-0706 SEAL RING A14X20 6
49 65.01601-5065 OIL SPRAY NOZZLE ASS'Y 6 ~070723 I 65.01601-5071 6
49 65.01601-5071 OIL SPRAY NOZZLE ASS'Y 6 070724~120514
49 65.01601-5080 NOZZLE ASSY,OIL SPRAY 6 120515~
50 65.90001-0129 BOLT;HEX 12 ~120514 I 120106-00539 12
50 120106-00539 BOLT,HEX FLANGE 12 120515~
51 06.16044-0208 WASHER;SPRING 12
52 06.08041-2203 SCREW;PLUG M14X1.5 1
53 06.56190-0706 SEAL RING A14X20 1
54 65.90310-0147 SCREW;PLUG 1
3
DX520LC

5. Fig. 002 FLYWHEEL HOUSING
DX520LC

6. Fig. 002 FLYWHEEL HOUSING
Key No Part No Description Qty S.C Serial No ICA Replacable Qty
1 65.01401-5035 HOUSING;FLYWHEEL 1
2 65.01402-0010 COVER;FLYWHEEL HOUSING 1
3 65.01904-0029 GASKET 1 ~070123 Y 65.01904-0029B 1
3 65.01904-0029B GASKET 1 070124~
4 06.01923-3118 BOLT ASS'Y M8X35 4
5 65.01510-0141 OIL SEAL;RR 1
6 65.90720-0109 WASHER;THRUST 1 ~130107 I 120816-00123 1
6 120816-00123 WASHER,THRUST 1 130108~
7 65.90020-0065 BOLT;HEX. 2 ~060504
7 65.90020-0137 BOLT;HEX. 2 ~071120
7 65.90020-0144 BOLT;HEX. 2 ~080130
7 65.90020-0146 BOLT;HEX. 2 080131~
8 65.96501-0104 O-RING 2 ~071120
8 65.96501-0105 O-RING 2 ~080130
8 65.96501-0107 O-RING 2 080131~
9 65.01904-0030 GASKET 1 ~060629 I 65.01904-0038 1
9 65.01904-0038 GASKET 1 060630~
10 65.01904-0031 GASKET 1 ~060425 I 65.01904-0031A 1
10 65.01904-0031A GASKET 1 ~060629 I 65.01904-0037 1
10 65.01904-0037 GASKET 1 060630~
20 65.90020-0223 BOLT;F.W.H 8
21 65.90020-0183B BOLT;HEX 6
22 65.90020-0133 BOLT;HEX 1
23 65.90020-0130 BOLT;HEX 2
24 06.01954-3331 BOLT;SPACER M12X1.5X100 2
25 65.91701-0468 SPACER 2
26 06.16731-6109 WASHER;SPRING A12 2
27 65.01414-0004A COVER 1
28 06.01923-3110 BOLT ASS'Y M8X12 2
1
DX520LC

7. Fig. 003 OIL SEAL
DX520LC

8. Fig. 003 OIL SEAL
Key No Part No Description Qty S.C Serial No ICA Replacable Qty
1 65.01501-5017D COVER;SEALING 1 ~080221 Y 65.01501-5017E 1
1 65.01501-5017E COVER;SEALING 1 080222~
2 65.01510-0153A SEAL;OIL 1 ~080521
2 65.01510-0041 SEAL;OIL 1 080522~
3 65.01905-0032 GASKET 1
4 06.01923-3116 BOLT ASS'Y M8X28 6
1
DX520LC

9. Fig. 004 BREATHER [061222]
DX520LC

10. Fig. 004 BREATHER [061222]
Key No Part No Description Qty S.C Serial No ICA Replacable Qty
1 65.01801-5038 HOUSING;BREATHER 1 ~061222
2 06.01923-3118 BOLT ASS'Y M8X35 4
3 65.96301-0422 HOSE;RUBBER 1
4 06.67020-0101 CLAMP;HOSE 2
5 65.05701-5552 PIPE;BREATHER 1
6 06.01923-3111 BOLT, M8X16 2
7 65.96301-0386 HOSE;RUBBER 1
8 06.67020-0101 CLAMP;HOSE 2
9 65.98131-0135 PIPE;CONNECTION 1 ~061019 Y 65.98131-0119 1
9 65.98131-0119 NIPPLE 1 061020~
10 06.56190-0719 RING;SEAL 1
20 65.01801-5041 HOUSING;BREATHER 1
21 65.01908-0014 GASKET 1
22 06.01923-3129 BOLT ASS'Y M8X90 4
25 65.96301-0441 HOSE;RUBBER 1 ~061201 Y 65.96301-0441A 1
25 65.96301-0441A HOSE;RUBBER 1 061202~
26 06.67020-0105 CLAMP;HOSE 1
28 65.01805-0001 SCREEN;HEAT;BREATHER 1
29 06.01913-2911 BOLT ASS'Y M6X16 2
1
DX520LC

11. Fig. 004A BREATHER [091215]
DX520LC

12. Fig. 004A BREATHER [091215]
Key No Part No Description Qty S.C Serial No ICA Replacable Qty
1 65.01801-5100 HOUSING;BREATHER 1 ~070129
2 06.01923-3114 BOLT ASS'Y M8X22 4
3 65.96301-0422A HOSE;RUBBER 1
4 06.67020-0101 CLAMP;HOSE 2
5 65.05701-5552 PIPE;BREATHER 1
6 06.01923-3111 BOLT, M8X16 2
7 65.96301-0386 HOSE;RUBBER 1
8 06.67020-0101 CLAMP;HOSE 2
9 65.98131-0119 NIPPLE 1
10 06.56190-0719 RING;SEAL 1
20 65.01840-5006A BRACKET;BREATHER 1
21 65.01908-0014 GASKET 1
22 06.01923-3118 BOLT ASS'Y M8X35 4
25 65.96301-0441A HOSE;RUBBER 1
26 06.67020-0105 CLAMP;HOSE 1
27 65.96301-0505 HOSE;RUBBER 1
28 06.67020-0105 CLAMP;HOSE 2
30 65.01805-0002 SCREEN;HEAT 1
31 06.01913-2911 BOLT ASS'Y M6X16 2
1
DX520LC

13. Fig. 004B BREATHER [091216 ~ ]
DX520LC

14. Fig. 004B BREATHER [091216 ~ ]
Key No Part No Description Qty S.C Serial No ICA Replacable Qty
1 65.01801-5100 HOUSING;BREATHER 1 070130~
2 06.01923-3114 BOLT ASS'Y M8X22 4
3 65.96301-0422A HOSE;RUBBER 1
4 06.67020-0101 CLAMP;HOSE 2
5 420218-00009 PIPE;BREATHER 1
6 06.01923-3111 BOLT, M8X16 1
7 65.96301-0422A HOSE;RUBBER 1
8 06.67020-0101 CLAMP;HOSE 2
10 65.01840-5006A BRACKET;BREATHER 1
11 65.01908-0014 GASKET 1
12 06.01923-3118 BOLT ASS'Y M8X35 4
13 65.96301-0441A HOSE;RUBBER 1
14 06.67020-0105 CLAMP;HOSE 1
15 65.96301-0505 HOSE;RUBBER 1
16 06.67020-0105 CLAMP;HOSE 2
17 65.01805-0002 SCREEN;HEAT 1
18 06.01913-2911 BOLT ASS'Y M6X16 2
20 65.01816-5001 PIPE;CONNECTION 1
21 06.56190-0706 SEAL RING A14X20 1
22 06.56190-0706 SEAL RING A14X20 2
23 06.78144-8404 SCREW;HOLLOW 1
24 430201-00033 ADAPTER;UNION 1
25 65.98130-0202 ADAPTER 1
26 06.56190-0706 SEAL RING A14X20 1
1
DX520LC

15. Fig. 005 DRIVING SYSTEM [120315]
DX520LC

16. Fig. 005 DRIVING SYSTEM [120315]
Key No Part No Description Qty S.C Serial No ICA Replacable Qty
1 65.02101-7065B CRANK SHAFT 1
2 65.02130-0001 RING;WEAR(FRONT) 1 ~080521
3 06.22022-3065 PIN;PARALLEL 1
4 65.02115-0066 GEAR;C.R.S 1
5 65.01505-0007 RING;OIL THROWER. 1
6 65.01110-6529 METAL;MAIN 3 ~120314
6 65.01110-6529 METAL;MAIN 4 120315~
6 65.01110-6531 METAL,MAIN 0.10 3 US ~120314
6 65.01110-6531 METAL,MAIN 0.10 4 US 120315~
6 65.01110-6532 METAL,MAIN 0.25 3 US ~120314
6 65.01110-6532 METAL,MAIN 0.25 4 US 120315~
7 65.01111-6539 WASHER;THRUST 1 ~120314
7 140110-00041 WASHER,THRUST;UPPER 2 120315~
7 140110-00042 WASHER,THRUST;LOWER 2 120315~
7 65.01111-6541 WASHER,THRUST 0.10 1 OS
7 65.01111-6542 WASHER,THRUST 0.25 1 OS
10 65.02201-7032 DAMPER;VIBRATION 1
11 65.90020-0062B BOLT;HEX M10X20 6
20 65.02301-5142 FLYWHEEL 1
20A 65.02301-0286 FLYWHEEL 1
20B 65.02310-0073D GEAR;STARTER RING 1
21 65.02130-0002 RING;WEAR(REAR) 1
22 65.91303-0005 PIN;TAPER 1
23 65.90020-0127 BOLT;FLY WHEEL. 10
30 65.02401-6027B ROD;CONNECTING 6
30A 65.02401-0015B ROD;CONNECTING 1 D
30B 65.02411-0008 BOLT;CONNECTING ROD 2
31 65.02410-0110B METAL;CONNECTING ROD 6
31 65.02410-0111B METAL;CON. ROD(0.10) 6 US
31 65.02410-0112B METAL;CON. ROD(0.25) 6 US
32 65.02410-0120B METAL;CONNECTING ROD 6
32 65.02410-0121B METAL;CON. ROD(0.10) 6 US
32 65.02410-0122B METAL;CON. ROD(0.25) 6 US
40 65.02501-0705 PISTON 6 ~061010 Y 65.02501-0705A 6
40 65.02501-0705A PISTON 6 ~071001 I 65.02501-0712 6
40 65.02501-0712 PISTON 6 ~090530 I 130602-00114 6
1
DX520LC

17. Key No Part No Description Qty S.C Serial No ICA Replacable Qty
40 130602-00114 PISTON 6 090531~
41 401004-00022 RING KIT,PISTON 6 080823~
41A - RING;PISTON 1 K
41B - RING;PISTON 1 K
41C - RING;PISTON OIL 1 K
44 65.02502-0081 PIN;PISTON 6
45 65.90815-0022A RING;LOCK 12
50 65.02601-0220 PULLEY;V-BELT 1
51 06.02106-0824 BOLT 8
2
DX520LC

18. Fig. 005A DRIVING SYSTEM [120316 ~ ]
DX520LC

19. Fig. 005A DRIVING SYSTEM [120316 ~ ]
Key No Part No Description Qty S.C Serial No ICA Replacable Qty
1 65.02101-7033 CRANKSHAFT ASSY 1
3 06.22022-3065 PIN;PARALLEL 1
4 65.02115-0066 GEAR;C.R.S 1
5 65.01505-0007 RING;OIL THROWER. 1 ~130523 I 401102-00033 1
5 401102-00033 HOLDER,OIL SEAL 1 130524~
6 65.01110-6529 METAL;MAIN 4
6 65.01110-6531 METAL,MAIN 0.10 4 US
6 65.01110-6532 METAL,MAIN 0.25 4 US
7 65.01150-0058A WASHER,THRUST;UPPER 2 ~120624
7 140110-00041 WASHER,THRUST;UPPER 2 120625~
8 65.01150-0059A WASHER,THRUST;LOWER 2 ~120624
8 140110-00042 WASHER,THRUST;LOWER 2 120625~
10 65.02201-7032 DAMPER;VIBRATION 1
11 65.90020-0062B BOLT;HEX M10X20 6
20 65.02301-5142 FLYWHEEL 1
20A 65.02301-0286 FLYWHEEL 1
20B 65.02310-0073D GEAR;STARTER RING 1
21 65.02130-0002 RING;WEAR(REAR) 1
22 65.91303-0005 PIN;TAPER 1
23 65.90020-0127 BOLT;FLY WHEEL. 10
30 65.02401-6033A ROD,CONNECTING 6
30A - ROD,CONNECTING 1 D
30B 65.02411-0010A BOLT 2
31 65.02410-0130 METAL,CON ROD;UPPER 6 ~131029 I 140112-00067 6
31 140112-00067 BEARING,CON-ROD;STD 6 131030~
31 65.02410-0131 METAL,CON ROD;(0.10) 6 US ~131029 I 140112-00068 6
31 140112-00068 BEARING,CON-ROD;0.10 6 US 131030~
31 65.02410-0132 METAL,CON ROD;(0.25) 6 US ~131029 I 140112-00069 6
31 140112-00069 BEARING,CON-ROD;0.25 6 US 131030~
32 65.02410-0078A METAL,CON ROD;LOWER 6
32 65.02410-0781A METAL,CON ROD;(0.10) 6 US
32 65.02410-0782A METAL,CON ROD;(0.25) 6 US
40 65.02501-0715 PISTON 6
41 401004-00022 RING KIT,PISTON 6
41A - RING;PISTON 1 K
41B - RING;PISTON 1 K
1
DX520LC

20. Key No Part No Description Qty S.C Serial No ICA Replacable Qty
41C - RING;PISTON OIL 1 K
44 65.02502-0033 PIN,PISTON 6
45 06.29020-0130 RING,SNAP 12
50 65.02601-0220 PULLEY;V-BELT 1
51 06.02106-0824 BOLT 8
2
DX520LC

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22. Fig. 006 CYLINDER HEAD
DX520LC

23. Fig. 006 CYLINDER HEAD
Key No Part No Description Qty S.C Serial No ICA Replacable Qty
1 65.03101-6074D HEAD;CYLINDER 2 ~061207 Y 65.03101-6074F 2
1 65.03101-6074F HEAD;CYLINDER 2 ~070902 I 65.03101-6074G 2
1 65.03101-6074G HEAD;CYLINDER 2 070903~
1A 65.03101-1054B HEAD;CYLINDER 1 D ~061207
1A 65.03101-1054C HEAD;CYLINDER 1 D 061208~
1B 65.03201-1014A GUIDE;VALVE 12 B ~061207 I 65.03201-1015B 12
1B 65.03201-1015B GUIDE;VALVE 12 B ~070902 Y 65.03201-1015C 12
1B 65.03201-1015C GUIDE;VALVE 12 B 070903~
1C 65.03203-1057A SEAT;VALVE 6 B
1D 65.03203-1058A SEAT;VALVE 6 B
1E 65.90302-0048 CORE;PLUG 5
1F 65.90302-0042 PLUG;CORE 2
1G 65.03205-0006B BUSH;INJ. NOZZLE 3
1H 65.96501-0088 O-RING 6
2 65.90201-0112 BOLT;STUD 10
3 65.90201-0114 BOLT;STUD 2
4 65.90021-0006 BOLT;COLLARED 28
5 65.03901-0067 GASKET;CYLINDER HEAD 2
1
DX520LC

24. Fig. 007 CYLINDER HEAD COVER
DX520LC