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CAT 345B parts — Genuine & OEM Replacement Parts

12,730 part numbers
20 systems
12 months warranty

WSTPARTS supplies 12,730 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.

Related searches

CAT 345B parts · 345B parts · 345B Drivetrain parts · 345B Electrical System parts · 345B Hydraulic Hose parts · 345B genuine parts

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

345B Structure (2,399 parts)

0046683
ADAPTER
US$ 2.47
0857075
COVER
US$ 181.22
0857075
COVER
US$ 181.22
0857075
COVER
US$ 181.22
0857076
COVER
US$ 127.49
0857076
COVER
US$ 127.49
0857076
COVER
US$ 127.49
0857080
LEVER
US$ 135.69
0857080
LEVER
US$ 135.69
0857080
LEVER
US$ 135.69
0874786
ADAPTER
US$ 25.51
0874786
ADAPTER
US$ 25.51
0874969
PLATE
US$ 335.56
0875707
COVER
US$ 139.96
0875771
BRACKET
US$ 41.78
View all 2,399 Structure parts →

345B Bolt/Nut (2,376 parts)

0300167
RING
US$ 3.55
0300167
RING
US$ 3.55
0300167
RING
US$ 3.55
0338248
CLIP
US$ 1.87
0338248
CLIP
US$ 1.87
0338248
CLIP
US$ 1.87
0340728
CLIP
US$ 5.86
0369821
WASHER
US$ 0.56
0369821
WASHER
US$ 0.56
0369823
BOLT
US$ 1.68
0369823
BOLT
US$ 1.68
0369823
BOLT
US$ 1.68
0454065
SCREW
US$ 0.14
0454065
SCREW
US$ 0.14
0816344
SPACER
US$ 13.39
View all 2,376 Bolt/Nut parts →

345B Drivetrain (1,040 parts)

0058593
SEAL
US$ 2.08
0329882
SEAL-O-RIN
US$ 1.81
0329882
SEAL-O-RIN
US$ 1.81
0329882
SEAL-O-RIN
US$ 1.81
0336039
O-RING
US$ 2.88
0617539
SEAL
US$ 5.34
0618561
SEAL
US$ 8.57
0618561
SEAL
US$ 8.57
0618561
SEAL
US$ 8.57
0619458
SEAL
US$ 6.60
0619458
SEAL
US$ 6.60
0619458
SEAL
US$ 6.60
0874704
ROD
US$ 69.11
0875389
RING SEAL
US$ 28.21
0875533
BEARING
US$ 164.41
View all 1,040 Drivetrain parts →

345B Fitting (888 parts)

0054362
ELBOW
US$ 9.58
0054362
ELBOW
US$ 9.58
0307942
ELBOW
US$ 8.90
0307942
ELBOW
US$ 8.90
0307947
ELBOW
US$ 7.64
0307947
ELBOW
US$ 7.64
0307947
ELBOW
US$ 7.64
0307951
ELBOW
US$ 33.28
0619258
TEE
US$ 13.54
0857077
PLUG
US$ 40.77
0857077
PLUG
US$ 40.77
0857077
PLUG
US$ 40.77
0857082
PLUG
US$ 6.64
0857082
PLUG
US$ 6.64
0857082
PLUG
US$ 6.64
View all 888 Fitting parts →

345B Electrical System (666 parts)

0307935
CONNECTOR
US$ 12.71
0307935
CONNECTOR
US$ 12.71
0307935
CONNECTOR
US$ 12.71
0308188
CONNECTOR
US$ 4.68
0308188
CONNECTOR
US$ 4.68
0308194
CONNECTOR
US$ 4.14
0308194
CONNECTOR
US$ 4.14
0321267
CONNECTOR
US$ 2.11
0530088
CONNECTOR
US$ 6.23
0619413
CONNECTOR
US$ 5.09
0619413
CONNECTOR
US$ 5.09
0813801
PLUG
US$ 60.83
0813959
PLUG
US$ 8.05
0855564
PLUG
US$ 20.69
0874703
PLUG
US$ 21.13
View all 666 Electrical System parts →

345B Hydraulic Hose (579 parts)

0874402
HOSE A
US$ 42.39
0874402
HOSE A
US$ 42.39
0874408
HOSE A
US$ 38.99
0874441
HOSE A
US$ 43.08
0874441
HOSE A
US$ 43.08
0874532
HOSE A
US$ 40.36
0874532
HOSE A
US$ 40.36
0874535
HOSE A
US$ 96.64
0874535
HOSE A
US$ 96.64
0874570
HOSE AS
US$ 97.02
0875303
HOSE A
US$ 68.68
0875591
HOSE A
US$ 52.58
0875591
HOSE A
US$ 52.58
0875591
HOSE A
US$ 52.58
0875759
HOSE A
US$ 35.15
View all 579 Hydraulic Hose parts →

345B Spring (285 parts)

0856447
RETAINER
US$ 24.76
0856447
RETAINER
US$ 24.76
0856447
RETAINER
US$ 24.76
0857078
SPRING
US$ 9.70
0857078
SPRING
US$ 9.70
0857078
SPRING
US$ 9.70
0874707
SPRING
US$ 19.90
0874707
SPRING
US$ 19.90
0874707
SPRING
US$ 19.90
0930543
RETAINER
US$ 54.88
0956639
SPRING
US$ 5.29
0956639
SPRING
US$ 5.29
0956639
SPRING
US$ 5.29
0961595
SPRING
US$ 8.49
0961598
SPRING
US$ 3.55
View all 285 Spring parts →

345B Engine Block (238 parts)

0874970
SLEEVE
US$ 1.55
0875764
SLEEVE
US$ 58.17
0875764
SLEEVE
US$ 58.17
1043560
SEAL
US$ 10.12
1043560
SEAL
US$ 10.12
1043560
SEAL
US$ 10.12
1086711
SLEEVE
US$ 1.42
1086711
SLEEVE
US$ 1.42
1086711
SLEEVE
US$ 1.42
1086713
SLEEVE
US$ 2.11
1086713
SLEEVE
US$ 2.11
1086713
SLEEVE
US$ 2.11
1133452
MOTOR A
US$ 224.86
1152973
BOLT
US$ 20.06
1152973
BOLT
US$ 20.06
View all 238 Engine Block parts →

345B Seal (228 parts)

0335853
O RING
US$ 2.85
0335853
O RING
US$ 2.85
0336033
O-RING
US$ 3.16
0336033
O-RING
US$ 3.16
0336036
O-RING
US$ 5.24
0336043
O-RING
US$ 3.25
0856449
PACKING
US$ 2.58
0856449
PACKING
US$ 2.58
0856449
PACKING
US$ 2.58
0931344
O-RING
US$ 7.34
0931345
O-RING
US$ 7.83
0931345
O-RING
US$ 7.83
0931347
O-RING
US$ 9.27
0931347
O-RING
US$ 9.27
0931347
O-RING
US$ 9.27
View all 228 Seal parts →

345B Wiring Harness (195 parts)

0857329
SPACER
US$ 9.45
0919035
SPACER
US$ 13.48
0993645
CABLE
US$ 3.13
0993645
CABLE
US$ 3.13
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
1138490
FUSE
US$ 0.81
1138490
FUSE
US$ 0.81
1160080
CABLE AS
US$ 41.64
1160237
WIRE AS
US$ 6.25
View all 195 Wiring Harness parts →

345B Hydraulic System (178 parts)

0857356
FITTING
US$ 22.55
0857356
FITTING
US$ 22.55
1025829
ADAPTER AS
US$ 171.67
1025829
ADAPTER AS
US$ 171.67
1025829
ADAPTER AS
US$ 171.67
1068554
STARTING MOTOR GP-ELECTRIC
US$ 1,176.41
1087516
FITTING
US$ 15.27
1087516
FITTING
US$ 15.27
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
View all 178 Hydraulic System parts →

345B Pin/Bushing (173 parts)

0857083
PIN
US$ 6.81
0857083
PIN
US$ 6.81
0857083
PIN
US$ 6.81
0943709
PIN,SPRING
US$ 18.60
0943709
PIN,SPRING
US$ 18.60
0943709
PIN,SPRING
US$ 18.60
0950843
PIN,SPLIT
US$ 0.06
0950843
PIN,SPLIT
US$ 0.06
0950843
PIN,SPLIT
US$ 0.06
0950882
PIN,SPRING
US$ 0.82
0950882
PIN,SPRING
US$ 0.82
0950882
PIN,SPRING
US$ 0.82
0950886
PIN,SPRING
US$ 1.42
0950886
PIN,SPRING
US$ 1.42
0950891
PIN,SPRING
US$ 2.17
View all 173 Pin/Bushing parts →

345B Valve Assembly (139 parts)

1041706
VALVE
US$ 35.97
1086700
VALVE A
US$ 156.55
1086700
VALVE A
US$ 156.55
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
1227677
VALVE
US$ 51.70
1227677
VALVE
US$ 51.70
View all 139 Valve Assembly parts →

345B Hydraulic Valve (137 parts)

0952927
VALVE,FILL
US$ 19.61
0952927
VALVE,FILL
US$ 19.61
0952927
VALVE,FILL
US$ 19.61
1077056
VALVE GP
US$ 605.20
1112645
VALVE BYP
US$ 43.55
1163526
VALVE GP
US$ 313.68
1227690
VALVE GP
US$ 153.55
1227690
VALVE GP
US$ 153.55
1227690
VALVE GP
US$ 153.55
1227708
VALVE GP
US$ 318.38
1227708
VALVE GP
US$ 318.38
1227708
VALVE GP
US$ 318.38
1227750
VALVE GP
US$ 393.76
1227750
VALVE GP
US$ 393.76
1227750
VALVE GP
US$ 393.76
View all 137 Hydraulic Valve parts →

345B Switch/Relay (120 parts)

0856455
VALVE G
US$ 2,187.73
0856455
VALVE G
US$ 2,187.73
0856455
VALVE G
US$ 2,187.73
1060107
SWITCH AS
US$ 212.35
1060107
SWITCH AS
US$ 212.35
1060107
SWITCH AS
US$ 212.35
1060179
SWITCH AS
US$ 77.69
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
View all 120 Switch/Relay parts →

345B Drive Shaft (93 parts)

0941509
SHAFT,PLAN
US$ 74.44
0941509
SHAFT,PLAN
US$ 74.44
0941509
SHAFT,PLAN
US$ 74.44
0996145
CAM SHAFT
US$ 30.66
0996145
CAM SHAFT
US$ 30.66
0996145
CAM SHAFT
US$ 30.66
1141383
SHAFT
US$ 127.90
1141383
SHAFT
US$ 127.90
1159403
SHAFT ROCK
US$ 125.18
1163522
DRIVE-SCRE
US$ 2.04
1163522
DRIVE-SCRE
US$ 2.04
1163522
DRIVE-SCRE
US$ 2.04
1229646
DRIVE A
US$ 1,420.14
1231381
SHAFT-TCK
US$ 287.61
1244009
SHAFT
US$ 9.23
View all 93 Drive Shaft parts →

345B Light/Lamp (93 parts)

0931291
CLAMP,SING
US$ 35.09
0931294
CLAMP,DOUB
US$ 29.29
0931294
CLAMP,DOUB
US$ 29.29
0951386
CLAMP
US$ 1.56
0951386
CLAMP
US$ 1.56
0951386
CLAMP
US$ 1.56
0951388
CLAMP
US$ 1.33
0951388
CLAMP
US$ 1.33
0951388
CLAMP
US$ 1.33
0960721
LIGHT ROOM
US$ 26.58
1098708
CLAMP
US$ 23.51
1098708
CLAMP
US$ 23.51
1098708
CLAMP
US$ 23.51
1114813
LAMP GP
US$ 505.57
1211069
LAMP GP
US$ 177.71
View all 93 Light/Lamp parts →

345B Piston Assembly (74 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
1315937
PISTON
US$ 41.05
1315937
PISTON
US$ 41.05
1373776
PISTON
US$ 38.40
View all 74 Piston Assembly parts →

345B Boom (72 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
1275251
FILM-INSTR
US$ 7.23
1275251
FILM-INSTR
US$ 7.23
1275278
FILM-INSTR
US$ 21.54
1275278
FILM-INSTR
US$ 21.54
1275278
FILM-INSTR
US$ 21.54
1275279
FILM-INSTR
US$ 23.22
1275279
FILM-INSTR
US$ 23.22
1275279
FILM-INSTR
US$ 23.22
1275284
FILM-STRIP
US$ 102.38
1275304
FILM-INSTR
US$ 14.92
View all 72 Boom parts →

345B Repair Tools (71 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
1210987
SOCKET
US$ 18.61
1210987
SOCKET
US$ 18.61
1261768
SOCKET
US$ 1.70
1261768
SOCKET
US$ 1.70
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
View all 71 Repair Tools 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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