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Caterpillar 345B parts — Genuine & OEM Replacement Parts

4,305 part numbers
20 systems
12 months warranty

WSTPARTS supplies 4,305 genuine and high-quality OEM replacement parts for Caterpillar 345B equipment, covering 20 major systems including Structure, Bolt/Nut, Drivetrain, Fitting, Electrical System. Every part number below is fitment-verified before dispatch, backed by factory-direct pricing and a 12-month warranty. Send us your machine serial number for a fast quotation.

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Caterpillar 345B parts

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卡特彼勒345B配件 for CAT 345B

No "卡特彼勒345B配件" parts found for CAT 345B. Browse all parts below.

Structure (827 parts)

0046683
ADAPTER
US$ 2.47
0857075
COVER
US$ 181.22
0857076
COVER
US$ 127.49
0857080
LEVER
US$ 135.69
0874969
PLATE
US$ 335.56
0875707
COVER
US$ 139.96
0875838
PLATE
US$ 14.30
0875840
PLATE
US$ 14.47
0875841
PLATE
US$ 16.52
0937638
BAR,PUSH
US$ 42.27
0940872
PLATE
US$ 73.75
0963201
WIPER DUST
US$ 26.58
0965609
WIPER DUST
US$ 30.82
0996132
CASING
US$ 384.04
0996135
SCRAPER
US$ 4.16
View all 827 Structure parts →

Bolt/Nut (775 parts)

0300167
RING
US$ 3.55
0338248
CLIP
US$ 1.87
0340728
CLIP
US$ 5.86
0369821
WASHER
US$ 0.56
0369823
BOLT
US$ 1.68
0454065
SCREW
US$ 0.14
0816344
SPACER
US$ 13.39
0855593
RING SNAP
US$ 2.30
0856448
SCREW
US$ 0.36
0857084
BOLT
US$ 4.33
0858091
BOLT
US$ 1.14
0873908
SHIM
US$ 1.90
0873909
SHIM
US$ 4.39
0874448
BOLT
US$ 12.58
0874710
SET SCREW
US$ 6.39
View all 775 Bolt/Nut parts →

Drivetrain (316 parts)

0329882
SEAL-O-RIN
US$ 1.81
0336039
O-RING
US$ 2.88
0618561
SEAL
US$ 8.57
0619458
SEAL
US$ 6.60
0874704
ROD
US$ 69.11
0875389
RING SEAL
US$ 28.21
0875533
BEARING
US$ 164.41
0875548
BEARING SL
US$ 181.14
0940876
SEAL
US$ 4.25
0951586
O-RING
US$ 1.00
0951710
O-RING
US$ 2.99
0960854
SEAL
US$ 13.39
1008525
GASKET
US$ 1.64
1011635
GASKET
US$ 1.15
1013125
GASKET
US$ 5.21
View all 316 Drivetrain parts →

Fitting (261 parts)

0307947
ELBOW
US$ 7.64
0307951
ELBOW
US$ 33.28
0619258
TEE
US$ 13.54
0857077
PLUG
US$ 40.77
0857082
PLUG
US$ 6.64
0875709
BELLOWS
US$ 36.60
0875775
PIPE
US$ 51.60
0963376
GUIDE
US$ 15.94
0964754
CHECK NPR
US$ 14.52
1008150
GUIDE
US$ 12.30
1025869
TUBE AS
US$ 124.70
1028785
ELBOW WTR
US$ 62.94
1054208
FLANGE
US$ 58.17
1059526
ADAPTER
US$ 1.28
1075795
TUBE
US$ 71.05
View all 261 Fitting parts →

Electrical System (230 parts)

0307935
CONNECTOR
US$ 12.71
0321267
CONNECTOR
US$ 2.11
0530088
CONNECTOR
US$ 6.23
0813801
PLUG
US$ 60.83
0813959
PLUG
US$ 8.05
0855564
PLUG
US$ 20.69
0874703
PLUG
US$ 21.13
0874785
PLUG
US$ 3.66
0941900
PLUG
US$ 15.63
0961628
PLUG
US$ 27.83
0964085
CAP
US$ 7.48
0966095
PLUG
US$ 19.45
0990865
BULB
US$ 1.81
0S1589
CAP SCREW
US$ 1.33
0T0200
PLUG
US$ 2.11
View all 230 Electrical System parts →

Hydraulic Hose (167 parts)

0874408
HOSE A
US$ 38.99
0875303
HOSE A
US$ 68.68
0875591
HOSE A
US$ 52.58
0875759
HOSE A
US$ 35.15
0875767
HOSE A
US$ 45.03
0875777
HOSE A
US$ 44.48
0875891
HOSE AS
US$ 28.22
0876583
HOSE A
US$ 72.29
0876584
HOSE A
US$ 82.21
0905291
HOSE A
US$ 18.58
0964841
CLAMP HOSE
US$ 1.47
0990862
HOSE
US$ 29.38
1021127
HOSE A
US$ 45.96
1027685
HOSE A
US$ 79.24
1031396
HOSE A
US$ 47.46
View all 167 Hydraulic Hose parts →

Spring (98 parts)

0856447
RETAINER
US$ 24.76
0857078
SPRING
US$ 9.70
0874707
SPRING
US$ 19.90
0930543
RETAINER
US$ 54.88
0956639
SPRING
US$ 5.29
0961595
SPRING
US$ 8.49
0961598
SPRING
US$ 3.55
0963375
SPRING
US$ 5.44
0990365
SPRING
US$ 6.97
0993506
GAS SPRING
US$ 95.14
0995735
SPRING SEA
US$ 28.21
0996142
SPRING
US$ 4.40
1041729
SPRING
US$ 7.08
1077064
SPRING
US$ 8.05
1078559
RETAINER A
US$ 14.44
View all 98 Spring parts →

Wiring Harness (83 parts)

0857329
SPACER
US$ 9.45
0919035
SPACER
US$ 13.48
0993645
CABLE
US$ 3.13
1006658
WIRE A
US$ 15.00
1054728
WIRE A
US$ 14.40
1108769
WIRE A
US$ 15.65
1114829
WIRE AS
US$ 6.61
1114841
HARNESS A
US$ 54.18
1114846
CABLE
US$ 49.25
1160080
CABLE AS
US$ 41.64
1160237
WIRE AS
US$ 6.25
1160242
CABLE A
US$ 57.56
1160243
HARNESS A
US$ 11.20
1160258
HARNESS A
US$ 52.57
1160259
HARNESS AS
US$ 23.48
View all 83 Wiring Harness parts →

Engine Block (78 parts)

0874970
SLEEVE
US$ 1.55
1043560
SEAL
US$ 10.12
1086711
SLEEVE
US$ 1.42
1086713
SLEEVE
US$ 2.11
1133452
MOTOR A
US$ 224.86
1161102
SLEEVE
US$ 17.47
1161108
CHECK NPR
US$ 43.41
1161109
CHECK NPR
US$ 43.41
1163501
SLEEVE
US$ 395.44
1186052
SLEEVE
US$ 2.39
1193782
CHECK NPR
US$ 24.69
1227675
SLEEVE
US$ 81.38
1227678
SLEEVE
US$ 134.10
1227716
SLEEVE
US$ 56.63
1229631
LINER
US$ 44.56
View all 78 Engine Block parts →

Seal (68 parts)

0336036
O-RING
US$ 5.24
0856449
PACKING
US$ 2.58
0931344
O-RING
US$ 7.34
0931347
O-RING
US$ 9.27
0931349
O-RING
US$ 8.50
0951510
O-RING
US$ 0.65
0951513
O-RING
US$ 0.67
0951514
O-RING
US$ 0.67
0951517
O-RING
US$ 0.82
0951522
O-RING
US$ 1.06
0951573
O-RING
US$ 0.65
0951575
O-RING
US$ 0.65
0951576
O-RING
US$ 0.67
0951578
O-RING
US$ 0.67
0951579
O-RING
US$ 0.74
View all 68 Seal parts →

Pin/Bushing (61 parts)

0857083
PIN
US$ 6.81
0943709
PIN,SPRING
US$ 18.60
0950843
PIN,SPLIT
US$ 0.06
0950882
PIN,SPRING
US$ 0.82
0950891
PIN,SPRING
US$ 2.17
0951319
PIN,CLEVIS
US$ 7.13
0960014
PIN SPRING
US$ 0.77
0963780
PIN
US$ 5.91
0964755
PIN
US$ 26.40
0964837
PIN SPRING
US$ 1.29
0993047
PIN DOWEL
US$ 1.13
0993094
PIN DOWEL
US$ 2.62
1073378
PIN GET
US$ 14.32
1141541
PIN
US$ 17.81
1176274
PIN
US$ 14.28
View all 61 Pin/Bushing parts →

Hydraulic System (60 parts)

1025829
ADAPTER AS
US$ 171.67
1068554
STARTING MOTOR GP-ELECTRIC
US$ 1,176.41
1087516
FITTING
US$ 15.27
1165405
MANIFOLD GP-INLET
Contact for price
1207139
PLATE
US$ 45.17
1207140
PLATE
US$ 39.08
1218625
PLATE
US$ 119.79
1218626
PLATE
US$ 99.88
1227688
VALVE (CHECK)
US$ 32.74
1227717
PIN
US$ 1.64
1227764
VALVE GP
US$ 15,679.36
1232534
FITTING
US$ 362.89
1271347
LINES GP-GREASE
Contact for price
127-1347
LINES GP-GREASE
Contact for price
1271401
BUCKET & ADJUSTER GP
US$ 20,521.67
View all 60 Hydraulic System parts →

Switch/Relay (51 parts)

0856455
VALVE G
US$ 2,187.73
1060107
SWITCH AS
US$ 212.35
1060179
SWITCH AS
US$ 77.69
1060180
SWITCH AS
US$ 77.69
1060181
SWITCH A
US$ 77.69
1077058
VALVE G
US$ 566.92
1107884
SWITCH AS
US$ 35.17
1114760
SWITCH A
Contact for price
1114783
SWITCH AS
US$ 50.00
1114784
SWITCH AS
US$ 45.64
1114785
SWITCH A
US$ 46.75
1114786
SWITCH A
US$ 45.64
1114789
SWITCH A
US$ 46.75
1114871
RELAY
US$ 23.67
1119950
VALVE G
US$ 2,997.58
View all 51 Switch/Relay parts →

Valve Assembly (46 parts)

1041706
VALVE
US$ 35.97
1086700
VALVE A
US$ 156.55
1095309
GASKET
US$ 87.73
1159393
Rocker Arm
US$ 68.88
1159397
Rocker Arm
Contact for price
1159398
ARM ROCKER
US$ 69.77
1159399
ARM ROCKER
US$ 49.66
1159400
ARM INJ RD
US$ 136.74
1163499
VALVE
US$ 129.53
1195390
PUSHROD
US$ 74.21
1227677
VALVE
US$ 51.70
1227682
VALVE
US$ 68.95
1227749
VALVE
US$ 91.91
1232535
VALVE
US$ 114.64
1232536
VALVE
US$ 133.35
View all 46 Valve Assembly parts →

Light/Lamp (31 parts)

0951386
CLAMP
US$ 1.56
0951388
CLAMP
US$ 1.33
0960721
LIGHT ROOM
US$ 26.58
1098708
CLAMP
US$ 23.51
1114813
LAMP GP
US$ 505.57
1211069
LAMP GP
US$ 177.71
1229657
CLAMP
US$ 12.15
1238253
CLAMP AS-V
US$ 44.83
1243961
CLAMP
US$ 1.97
1270929
CLAMP
US$ 32.07
1287577
CLAMP
US$ 45.81
1318881
CLAMP AS
US$ 59.11
1346857
CLAMP AS
US$ 219.30
1357875
CLAMP AS
US$ 47.67
1474831
CLAMP
US$ 0.63
View all 31 Light/Lamp parts →

Repair Tools (31 parts)

1105056
FOAM KIT
US$ 127.84
1105059
FOAM KIT
US$ 137.01
1114766
SOCKET-CON
US$ 1.89
1124550
SLEEVE-BUL
US$ 0.05
1210987
SOCKET
US$ 18.61
1300321
DAMPER KIT
US$ 47.19
1300322
ADJUST KIT
US$ 177.68
1300328
CLIP KIT
US$ 5.71
1300336
RISER KIT
US$ 591.80
1300337
COVER KIT
US$ 123.03
1300338
ADJUST KIT
US$ 139.74
1300339
COVER KIT
US$ 134.93
1474788
COVER KIT
US$ 174.16
1597673
COVER KIT
US$ 453.58
1772785
REPAIR KIT
US$ 1,035.74
View all 31 Repair Tools parts →

Drive Shaft (30 parts)

0941509
SHAFT,PLAN
US$ 74.44
0996145
CAM SHAFT
US$ 30.66
1159403
SHAFT ROCK
US$ 125.18
1163522
DRIVE-SCRE
US$ 2.04
1229646
DRIVE A
US$ 1,420.14
1231381
SHAFT-TCK
US$ 287.61
1244009
SHAFT
US$ 9.23
1247276
SHAFT AS-R
US$ 261.08
1249978
SHAFT-IDLE
US$ 319.97
1337083
SHAFT
US$ 168.86
1373746
SHAFT
US$ 185.30
1559123
SHAFT
US$ 271.17
1559132
SHAFT
US$ 303.89
1787297
SHAFT
US$ 109.82
1843958
SHAFT-DRIV
US$ 2,398.69
View all 30 Drive Shaft parts →

Piston Assembly (27 parts)

1012042
CHECK NPR
US$ 51.77
1095318
RING
US$ 27.60
1095319
RING
US$ 27.60
1119915
PISTON A
US$ 2,115.02
1195393
PISTON
US$ 85.63
1211449
PISTON
US$ 74.35
1211496
PISTON
US$ 161.47
1211497
PISTON
US$ 232.78
1231979
PISTON
US$ 25.22
1232111
PISTON
US$ 663.67
1261973
PISTON
US$ 945.95
1315937
PISTON
US$ 41.05
1373776
PISTON
US$ 38.40
1559112
PISTON A
US$ 33.66
1559139
PISTON
US$ 24.64
View all 27 Piston Assembly parts →

Hydraulic Valve (27 parts)

0952927
VALVE,FILL
US$ 19.61
1112645
VALVE BYP
US$ 43.55
1227690
VALVE GP
US$ 153.55
1227708
VALVE GP
US$ 318.38
1227750
VALVE GP
US$ 393.76
1227756
VALVE GP
US$ 163.50
1227760
VALVE GP
US$ 38,407.36
1227761
VALVE GP
US$ 18,657.46
1227762
VALVE GP
US$ 17,739.85
1232607
VALVE GP
US$ 237.62
1289090
Valve
Contact for price
1400672
CHECK NPR
US$ 589.36
1438145
VALVE GP
US$ 494.08
1659580
VALVE GP-M
US$ 1,257.87
1710060
VALVE GP
US$ 267.26
View all 27 Hydraulic Valve parts →

Boom (24 parts)

1091839
FILM-INSTR
US$ 20.96
1160082
STRAP-CABL
US$ 0.19
1161523
FILM-INSTR
US$ 3.05
1205107
FILM-INSTR
US$ 3.26
1275251
FILM-INSTR
US$ 7.23
1275278
FILM-INSTR
US$ 21.54
1275279
FILM-INSTR
US$ 23.22
1275284
FILM-STRIP
US$ 102.38
1275304
FILM-INSTR
US$ 14.92
1275305
FILM-INSTR
US$ 14.92
1277600
FILM-STRIP
US$ 28.27
1277601
FILM-STRIP
US$ 26.00
1277603
FILM-STRIP
US$ 25.31
1346146
FILM-STRIP
US$ 0.19
1364055
STRIP
US$ 36.37
View all 24 Boom parts →

FAQ

Are these genuine Caterpillar 345B parts?
We supply both genuine CAT parts with anti-counterfeit labels and OEM-equivalent alternatives built to the same specifications. All parts are fitment-verified for the 345B before dispatch and covered by a 12-month warranty.

How do I confirm the part number for my 345B?
Match the part number on your old part, or send us your machine serial number — WSTPARTS verifies fitment free of charge.

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