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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

Popular part types: injector filter hydraulic pump seal kit turbo belt bearing sensor

轴承 for CAT 345B

55 matched part numbers for "轴承" on CAT 345B:

0875379
BRG-SLEEVE
US$ 194.82
0875533
BEARING
US$ 164.41
0875548
BEARING SL
US$ 181.14
0964339
CHECK NPR
US$ 578.18
1140762
BEARING
US$ 69.64
1156370
BEARING-FR
US$ 1,254.22
1170166
BEARING CA
US$ 126.00
1211039
BEARING KI
US$ 0.89
1225318
BEARING
US$ 314.89
1231382
BEARING-TC
US$ 54.89
1231383
CHECK NPR
US$ 157.86
1249979
BEARING ID
US$ 85.85
1261956
BEARING
US$ 210.48
1280382
BEARING-MN
US$ 43.92
1280383
BEARING-MA
US$ 44.15
1280384
BEARING-MA
US$ 43.95
1280385
BEARING
US$ 44.47
1280390
BEARING-RO
US$ 25.43
1280391
BEARING-RO
US$ 25.78
1280400
BEARING-MA
US$ 43.92
1280401
BEARING-MA
US$ 44.15
1280402
BEARING
US$ 43.92
1280403
BEARING-MA
US$ 44.47
1280416
CHECK NPR
US$ 31.04
1280417
CHECK NPR
US$ 27.72
1300325
BEARING KI
US$ 63.70
1372817
BEARING -S
US$ 124.89
1413420
BEARING
US$ 167.98
1413447
BEARING
US$ 226.76
1432889
CHECK NPR
US$ 173.62
1483089
BEARING
US$ 262.11
1483090
BEARING
US$ 217.99
1483091
BEARING
US$ 219.28
1510650
BRG-SLEEVE
US$ 210.47
1559125
BEARING
US$ 51.60
1559126
BEARING
US$ 38.71
1722927
CHECK NPR
US$ 37,814.44
1884103
BEARING AS
US$ 455.50
3D0053
BEARING
US$ 63.91
3E0127
BEARING KI
US$ 95.61
4B3665
BEARING
US$ 38.15
4I1520
BEARING-SL
US$ 219.82
5I4472
BEARING AS
US$ 131.34
5I4478
BEARING
US$ 151.18
5I8625
BEARING
US$ 212.17
5P3418
BEARING
US$ 9.70
5P6721
BEARING
US$ 22.27
5P7807
BEARING
US$ 26.11
7C7852
BEARING
US$ 35.08
7Y0664
BEARING
US$ 36.38
7Y2396
BEARING
US$ 120.11
7Y3428
BEARING
US$ 79.83
7Y4939
BEARING
US$ 178.83
7Y5128
BEARING
US$ 125.86
8H9789
BEARING
US$ 29.55

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 (166 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 166 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 (26 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 26 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.

Other Caterpillar models

CAT 320C CAT 320D CAT 3306 CAT 3516B CAT 3512 CAT 345D CAT C18 CAT 330D CAT C15 CAT 345C CAT 365B CAT 330C CAT 325C CAT 325D CAT 336D CAT G3508 CAT 3516C CAT G3616 CAT C9 CAT 3516 CAT 3412C CAT G3608 CAT C13 CAT C7 CAT 3406C CAT 3508C CAT 3512C CAT C175 CAT 3126B
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