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CAT 320D genuine parts — Genuine & OEM Replacement Parts

4,694 part numbers
20 systems
12 months warranty

WSTPARTS supplies 4,694 genuine and high-quality OEM replacement parts for Caterpillar 320D equipment, covering 20 major systems including Bolt/Nut, Structure, Drivetrain, Fitting, Hydraulic Hose. 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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CAT 320D genuine parts · Caterpillar 320D parts · CAT 320D parts

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

seal kit for CAT 320D

13 matched part numbers for "seal kit" on CAT 320D:

1709941
SEAL KIT
US$ 204.23
1733454
SEAL KIT
US$ 94.08
1850400
SEAL KIT
US$ 88.61
1850407
SEAL KIT
US$ 7.97
2266473
SEAL KIT
US$ 110.20
2344576
SEAL KIT
US$ 315.70
2344587
SEAL KIT
US$ 316.26
2478868
SEAL KIT
US$ 307.20
2478888
SEAL KIT
US$ 292.35
2478974
SEAL KIT
US$ 355.23
2502503
SEAL KIT
US$ 18.21
2667929
SEAL KIT
US$ 320.55
7Y4222
SEAL KIT
US$ 146.24

Bolt/Nut (912 parts)

0120380
WASHER
US$ 0.46
0300167
RING
US$ 3.55
0338248
CLIP
US$ 1.87
0856448
SCREW
US$ 0.36
0856719
SHIM
US$ 0.48
0856720
SHIM
US$ 0.48
0857084
BOLT
US$ 4.33
0857913
BOLT
US$ 0.72
0858604
RING-RETAI
US$ 5.21
0858605
RING
US$ 121.73
0859195
SCREW
US$ 0.48
0859205
NUT LOCK
US$ 1.09
0859207
WASHER
US$ 0.41
0859209
SCREW
US$ 2.52
0859223
SHIM
US$ 0.48
View all 912 Bolt/Nut parts →

Structure (820 parts)

0857080
LEVER
US$ 135.69
0859197
COVER BRG
US$ 52.80
0859222
ADAPTER
US$ 11.33
0859259
KEY
US$ 0.69
0859652
KEY
US$ 0.72
0859653
KEY
US$ 0.69
0859832
COVER
US$ 40.26
0859936
LEVER
US$ 54.72
0874786
ADAPTER
US$ 25.51
0875838
PLATE
US$ 14.30
0875840
PLATE
US$ 14.47
0875841
PLATE
US$ 16.52
0937638
BAR,PUSH
US$ 42.27
0940580
PLATE,THRU
US$ 9.73
0941881
PLATE,SLID
US$ 4.98
View all 820 Structure parts →

Drivetrain (420 parts)

0856723
BEARING
US$ 25.17
0859655
GASKET
US$ 0.72
0861345
SEAL
US$ 33.94
0931433
SEAL,DUST
US$ 9.70
0940876
SEAL
US$ 4.25
0949424
Gasket
US$ 2.66
0950410
BEARING
US$ 10.62
0950863
PIN,SPLIT
US$ 0.74
0951519
O-RING
US$ 0.86
0951586
O-RING
US$ 1.00
0951710
O-RING
US$ 2.99
0952005
CAP SEALIN
US$ 2.47
0960131
SEAL
US$ 10.42
0960174
CLIP
US$ 0.41
0960854
SEAL
US$ 13.39
View all 420 Drivetrain parts →

Fitting (316 parts)

0875709
BELLOWS
US$ 36.60
0941920
PIPE,HOLDE
US$ 58.98
0958638
CHECK NPR
US$ 0.22
0961523
GUIDE
US$ 56.03
1017404
TUBE AS
US$ 3.53
1021120
ELBOW A
US$ 389.17
1021291
ELBOW A
US$ 389.17
1038177
ADAPTER
US$ 57.58
1059526
ADAPTER
US$ 1.28
1106821
NIPPLE
US$ 52.71
1119959
PLUG
US$ 3.23
1119998
PLUG
US$ 7.84
1136479
FLANGE
US$ 51.26
1141399
PIPE
US$ 107.97
1160126
HSG-PLUG
US$ 8.07
View all 316 Fitting parts →

Hydraulic Hose (224 parts)

0874402
HOSE A
US$ 42.39
0874411
HOSE A
US$ 41.80
0874531
HOSE AS
US$ 43.55
0874534
HOSE A
US$ 52.43
0875303
HOSE A
US$ 68.68
0875760
HOSE A
US$ 36.51
0875762
HOSE A
US$ 38.73
0875766
HOSE A
US$ 46.32
0875772
HOSE A
US$ 40.95
0875774
HOSE A
US$ 51.94
0875776
HOSE A
US$ 56.62
0875780
HOSE A
US$ 72.36
0875966
HOSE A
US$ 32.07
0876585
HOSE A
US$ 38.22
1021248
HOSE A
US$ 94.46
View all 224 Hydraulic Hose parts →

Electrical System (215 parts)

0859199
PLUG
US$ 6.03
0859206
NUT CAP
US$ 5.44
0859211
PLUG
US$ 5.67
0859914
CAPSULE
US$ 18.40
0941882
PLUG
US$ 5.22
0941900
PLUG
US$ 15.63
0947235
CAP
US$ 1.94
0949725
PLUG,AIR
US$ 1.54
0950965
PLUG,TAPER
US$ 5.93
0952011
CAP
US$ 8.64
0961421
PLUG
US$ 49.19
0961628
PLUG
US$ 27.83
0963321
PLUG
US$ 5.55
0963741
CAP
US$ 2.47
0966073
PLUG
US$ 5.55
View all 215 Electrical System parts →

Seal (94 parts)

0335853
O RING
US$ 2.85
0336036
O-RING
US$ 5.24
0336038
O-RING
US$ 5.89
0856449
PACKING
US$ 2.58
0931342
O-RING
US$ 5.60
0931344
O-RING
US$ 7.34
0931345
O-RING
US$ 7.83
0949672
O-RING BRE
US$ 1.02
0949980
PACKING
US$ 4.13
0951511
O-RING
US$ 0.67
0951517
O-RING
US$ 0.82
0951543
O-RING
US$ 2.03
0951547
O-RING
US$ 2.28
0951572
O-RING
US$ 0.62
0951575
O-RING
US$ 0.65
View all 94 Seal parts →

Engine Block (92 parts)

0875764
SLEEVE
US$ 58.17
0969505
SLEEVE
US$ 9.52
1086278
CAMSHAFT A
US$ 2,655.31
1161665
LINER
US$ 9.34
1326881
LINER
US$ 177.90
1352349
SLEEVE
US$ 30.51
1535298
SLEEVE
US$ 75.44
1535309
SLEEVE
US$ 23.87
1566980
ROD AS-CON
US$ 279.74
1653102
LINER
US$ 14.22
1653103
LINER
US$ 14.30
1733503
BLOCK GP-H
US$ 430.36
1775739
LINER
US$ 6.12
1775880
SLEEVE
US$ 9.80
1776395
LINER
US$ 27.46
View all 92 Engine Block parts →

Spring (87 parts)

0856447
RETAINER
US$ 24.76
0875166
SPRING
US$ 6.18
0952490
SPRING
US$ 1.28
0956639
SPRING
US$ 5.29
0957380
SPRING 9
US$ 3.57
0963978
SPRING
US$ 4.58
0964389
SPRING
US$ 3.80
0965915
RETAINER
US$ 18.99
0967928
SPRING
US$ 7.18
0968310
SPRING
US$ 6.69
0968336
SPRING
US$ 1.19
0993506
GAS SPRING
US$ 95.14
0993671
SPRING
US$ 3.46
1047293
SPRING
US$ 19.23
1047294
SPRING
US$ 19.91
View all 87 Spring parts →

Hydraulic System (73 parts)

0857356
FITTING
US$ 22.55
1087516
FITTING
US$ 15.27
1211809
PLATE
US$ 133.03
1241212
FITTING
US$ 208.75
1254766
CONNECTOR
US$ 1.21
1288950
CONNECTOR
US$ 27.91
1317501
ADAPTER AS
US$ 34.90
1566555
STRIKER A
US$ 44.70
1566599
STRIKER
US$ 26.85
1588135
GUIDE
US$ 14.33
1588985
MOTOR GP
US$ 6,407.66
1712208
BREAKER AS
US$ 42.18
1733507
HOUSING AS
US$ 408.22
174-9570
FILTER GP
Contact for price
1761958
WINDOW GP
US$ 232.61
View all 73 Hydraulic System parts →

Pin/Bushing (69 parts)

0857083
PIN
US$ 6.81
0859513
PIN
US$ 1.42
0860523
PIN
US$ 291.93
0875805
PIN
US$ 539.68
0875974
PIN
US$ 4.92
0950843
PIN,SPLIT
US$ 0.06
0950882
PIN,SPRING
US$ 0.82
0950886
PIN,SPRING
US$ 1.42
0950891
PIN,SPRING
US$ 2.17
0952623
PIN,LOCK
US$ 6.87
0955564
PIN,RUBBER
US$ 8.10
0963780
PIN
US$ 5.91
0964755
PIN
US$ 26.40
0964902
PIN
US$ 6.07
0969478
PIN
US$ 2.36
View all 69 Pin/Bushing parts →

Wiring Harness (64 parts)

0857329
SPACER
US$ 9.45
0919035
SPACER
US$ 13.48
0993645
CABLE
US$ 3.13
1138490
FUSE
US$ 0.81
1453850
HARNESS AS
US$ 588.81
1566554
CABLE A
US$ 257.74
1636758
WIRE A
US$ 7.38
1673456
HARNESS AS
US$ 6.56
1706929
CABLE AS
US$ 71.15
1709295
HARNESS AS
US$ 7.04
1717426
CABLE AS
US$ 125.51
2311827
CABLE AS
US$ 44.00
2341035
CABLE AS
US$ 12.15
2341036
CABLE AS
US$ 10.91
2358873
HARNESS AS
US$ 30.46
View all 64 Wiring Harness parts →

Piston Assembly (52 parts)

0874757
PISTON
US$ 27.60
0947134
PIN,PISTON
US$ 10.78
0961055
RING BACKU
US$ 16.89
0963964
RING BACKU
US$ 16.61
0964378
RING BACKU
US$ 24.09
0969503
PINION
US$ 6.53
1032857
RING SET
US$ 54.64
1078366
PISTON - N
US$ 108.63
1140517
PISTON
US$ 44.82
1252942
PISTON
US$ 12.04
1352350
RING-PISTO
US$ 6.50
1352354
RING-PISTO
US$ 5.64
1398505
RING-PISTO
US$ 33.23
1438023
PISTON
US$ 317.52
1453031
PISTON AS
US$ 620.78
View all 52 Piston Assembly parts →

Valve Assembly (50 parts)

0874742
VALVE
US$ 22.46
1076371
VALVE
US$ 54.44
1195365
VALVE
US$ 56.74
1352351
INSERT
US$ 83.21
1397814
VALVE
US$ 27.82
1535286
VALVE
US$ 54.94
1535292
VALVE
US$ 59.14
1535299
VALVE
US$ 45.09
1535313
VALVE GP-R
US$ 1,010.85
1659549
VALVE GP-S
US$ 2,452.83
1710037
VALVE
US$ 11.08
1710198
VALVE GP-S
US$ 1,025.83
1838176
VALVE
US$ 185.67
1850462
VALVE GP-S
US$ 406.14
1970196
VALVE
US$ 49.31
View all 50 Valve Assembly parts →

Hydraulic Valve (49 parts)

0952489
VALVE,CHEC
US$ 2.86
0952927
VALVE,FILL
US$ 19.61
1092667
VALVE GP
US$ 82.76
1129717
VALVE-VACU
US$ 10.19
1163526
VALVE GP
US$ 313.68
1298030
VALVE GP
US$ 528.07
1298031
VALVE GP
US$ 84.49
1373718
VALVE GP
US$ 3,744.39
1549024
VALVE-SAMP
US$ 20.58
1589085
VALVE GP
US$ 741.29
1659497
VALVE GP-F
US$ 878.09
1710188
VALVE GP-P
US$ 1,522.79
1850490
VALVE GP-F
US$ 4,013.73
2042819
VALVE GP-T
US$ 962.07
2063336
VALVE GP
US$ 231.73
View all 49 Hydraulic Valve parts →

Switch/Relay (44 parts)

0942080
RELAY,SAFE
US$ 143.83
1051321
VALVE G
US$ 98.55
1060107
SWITCH AS
US$ 212.35
1060179
SWITCH AS
US$ 77.69
1095152
VALVE G
US$ 108.76
1160114
SWITCH AS
US$ 78.17
1176306
SWITCH
US$ 8.42
1232430
VALVE G
US$ 159.62
1276844
VALVE G
US$ 1,151.15
1284411
VALVE A
US$ 15.03
1296466
SWITCH A
US$ 47.13
1298034
VALVE AS
US$ 142.60
1300270
SWITCH A
US$ 94.22
1352364
SWITCH A
US$ 255.96
1495050
RELAY
US$ 11.46
View all 44 Switch/Relay parts →

Light/Lamp (37 parts)

0931291
CLAMP,SING
US$ 35.09
0931294
CLAMP,DOUB
US$ 29.29
0947583
CLAMP ASSY
US$ 43.41
0949581
CLAMP
US$ 2.93
0949596
CLAMP
US$ 2.43
0949597
CLAMP
US$ 2.43
0951386
CLAMP
US$ 1.56
0951388
CLAMP
US$ 1.33
1229657
CLAMP
US$ 12.15
1347089
CLAMP
US$ 48.90
1440367
CLAMP
US$ 12.10
1515334
CLAMP
US$ 1.74
1532521
LAMP GP
US$ 75.88
1532523
LAMP G.
US$ 75.88
1673441
LAMP G-FLO
US$ 54.00
View all 37 Light/Lamp parts →

Drive Shaft (31 parts)

0941509
SHAFT,PLAN
US$ 74.44
0996145
CAM SHAFT
US$ 30.66
1163522
DRIVE-SCRE
US$ 2.04
1244009
SHAFT
US$ 9.23
1275939
SHAFT A
US$ 427.42
1484634
SHAFT-PLAN
US$ 101.10
1484644
DRIVE GP
US$ 14,731.70
1484679
DRIVE GP
US$ 21,806.28
1733406
SHAFT
US$ 381.64
1733440
SHAFT
US$ 550.16
1786635
SHAFT
US$ 69.73
1905866
SHAFT
US$ 16.47
1915537
DRIVE GP-P
US$ 2,553.13
1915539
SHAFT
US$ 89.62
2095894
SHAFT-DRIV
US$ 553.45
View all 31 Drive Shaft parts →

Cooling System (28 parts)

0944696
PLUG
US$ 0.36
1189863
PULLEY
US$ 180.36
1892216
BELT
US$ 44.53
2128584
PULLEY
US$ 260.41
2128585
BELT
US$ 118.45
2128613
PULLEY AS
US$ 76.94
2147915
FILM ENGIN
US$ 6.15
2228371
PULLEY AS
US$ 129.71
2228372
BELT
US$ 95.23
2396626
PULLEY-IDL
US$ 178.31
2405038
BELT GP-SE
US$ 180.31
2552927
V-BELT
US$ 24.04
2553018
PULLEY AS-
US$ 289.19
2653624
CORE AS-RA
US$ 1,241.46
2653625
CORE AS-O
US$ 1,777.15
View all 28 Cooling System parts →

Filter System (26 parts)

1141398
GAGE
US$ 44.58
1318903
ELEMENT A
US$ 31.96
1352402
GAGE
US$ 50.49
1355787
ELEMENT A
US$ 42.79
1355788
ELEMENT A
US$ 54.41
1566473
GLASS-LOWE
US$ 180.67
1588987
FILTER GP-
US$ 287.98
1749570
Filter
Contact for price
1786563
STRAINER
US$ 107.49
1882084
FILTER G O
US$ 139.62
1884140
CHECK NPR
US$ 2,057.31
1884142
FILTER G-H
US$ 587.90
1968219
FILTER AS
US$ 113.16
2096000
SCREEN AS
US$ 210.22
2166676
ELEMENT AS
US$ 183.84
View all 26 Filter System parts →

FAQ

Are these genuine Caterpillar 320D 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 320D before dispatch and covered by a 12-month warranty.

How do I confirm the part number for my 320D?
Match the part number on your old part, or send us your machine serial number — WSTPARTS verifies fitment free of charge.

Other Caterpillar models

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