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Caterpillar 325D Parts — Genuine & OEM Replacement Parts

1,721 part numbers
20 systems
12 months warranty

WSTPARTS supplies 1,721 genuine and high-quality OEM replacement parts for Caterpillar 325D equipment, covering 20 major systems including Structure, Bolt/Nut, Fitting, Hydraulic Hose, Drivetrain. 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.

Structure (415 parts)

0875840
PLATE
US$ 14.47
0940578
PLATE,THRU
US$ 8.73
0941881
PLATE,SLID
US$ 4.98
0961519
SEAT
US$ 9.17
0964447
HOLDER
US$ 53.22
0964480
HOLDER
US$ 43.91
0965916
SEAT
US$ 8.07
0990596
CASE PACKI
US$ 542.92
1059702
HOUSING A
US$ 103.90
1067149
HOUSING A
US$ 93.78
1076954
PLATE FRIC
US$ 87.19
1076955
PLATE - SE
US$ 15.25
1132317
BRACKET
US$ 210.30
1140700
SUPPORT A
US$ 159.07
1141401
COVER-HSG
US$ 1,043.49
View all 415 Structure parts →

Bolt/Nut (198 parts)

0392280
SPACER
US$ 10.40
0858604
RING-RETAI
US$ 5.21
0858605
RING
US$ 121.73
0859310
SPACER
US$ 17.14
0860297
WASHER
US$ 3.89
0874683
LOCKWASHER
US$ 1.03
0875955
SPACER
US$ 24.20
0875975
SHIM
US$ 9.36
0930084
SPACER
US$ 12.40
0930115
SPACER
US$ 17.01
0930116
SPACER
US$ 20.77
0930357
WASHER
US$ 12.36
0931514
RING,BACK-
US$ 16.72
0940611
WASHER,THR
US$ 1.07
0941399
RING,SNAP
US$ 2.18
View all 198 Bolt/Nut parts →

Fitting (150 parts)

0941920
PIPE,HOLDE
US$ 58.98
0961523
GUIDE
US$ 56.03
1164663
ELBOW
US$ 247.92
1169118
TUBE A
US$ 628.59
1169129
TUBE A
US$ 221.41
1175612
PIPE
US$ 53.65
1276780
TUBE A
US$ 560.46
1370856
TUBE AS
US$ 181.22
1426582
TUBE AS
US$ 515.04
1488374
Component
Contact for price
1488378
CHECK NPR
US$ 9.59
1545558
FLANGE
US$ 163.25
1553624
PLUG AS
US$ 7.53
1590918
TUBE AS-DR
US$ 55.83
1689760
CHECK NPR
US$ 535.36
View all 150 Fitting parts →

Hydraulic Hose (115 parts)

0874423
HOSE A
US$ 47.22
0875762
HOSE A
US$ 38.73
0875776
HOSE A
US$ 56.62
0875780
HOSE A
US$ 72.36
0875857
HOSE A
US$ 45.93
0875966
HOSE A
US$ 32.07
1021157
HOSE A
US$ 59.66
1048768
HOSE A
US$ 46.30
1048821
HOSE A
US$ 40.13
1048838
HOSE A
US$ 39.33
1048950
HOSE A
US$ 52.63
1087357
HOSE A
US$ 41.90
1087372
HOSE A
US$ 52.42
1087387
HOSE A
US$ 67.93
1087433
HOSE A
US$ 59.10
View all 115 Hydraulic Hose parts →

Drivetrain (99 parts)

0931433
SEAL,DUST
US$ 9.70
0951527
O-RING
US$ 1.43
0951528
O-RING
US$ 1.44
0951538
O-RING
US$ 1.95
0960131
SEAL
US$ 10.42
0992096
BEARING
US$ 84.34
1020889
SEAL-O-RIN
US$ 3.01
1090885
SEAL G
US$ 56.89
1140754
BEARING
US$ 36.73
1153697
BEARING
US$ 746.11
1262016
PUMP G
US$ 771.88
1265466
GASKET
US$ 1.06
1266514
SEAL-O-RIN
US$ 2.34
1266515
SEAL-O-RIN
US$ 2.42
1266516
SEAL-O-RIN
US$ 2.47
View all 99 Drivetrain parts →

Electrical System (52 parts)

0941882
PLUG
US$ 5.22
1029863
TERMINAL A
US$ 31.71
1138493
FUSE
US$ 0.94
1254840
WEDGE-PLUG
US$ 0.70
1288952
WEDGE-PLUG
US$ 0.94
1346852
CONNECTOR
US$ 13.76
1552266
PLUG KIT
US$ 0.48
1680766
PLUG
US$ 104.78
1695861
Plug
Contact for price
1709324
BULB AS
US$ 7.84
1882128
PLUG AS
US$ 4.07
1904896
PLUG
US$ 6.13
1910523
Connector
Contact for price
1974385
DIODE
US$ 10.50
1S2563
PLUG
US$ 3.65
View all 52 Electrical System parts →

Wiring Harness (41 parts)

1051797
MOUNT-WIRE
US$ 1.74
1933515
CABLE AS
US$ 58.62
1982713
HARNESS AS
US$ 906.92
2013153
WIRE AS.
US$ 17.35
2225917
HARNESS AS
US$ 197.62
2298851
CABLE AS
US$ 14.63
2311827
CABLE AS
US$ 44.00
2341035
CABLE AS
US$ 12.15
2358873
HARNESS AS
US$ 30.46
2359006
HARNESS AS
US$ 20.52
2382260
CABLE
US$ 8.56
2382280
WIRE AS
US$ 10.88
2382302
HARNESS AS
US$ 134.17
2382303
HARNESS AS
US$ 151.10
2382390
CABLE AS
US$ 12.15
View all 41 Wiring Harness parts →

Engine Block (39 parts)

1151853
LINK
US$ 70.44
1151854
LINK
US$ 70.44
1277771
LINER
US$ 7.27
2124288
CAMSHAFT A
US$ 1,441.34
2124289
Wheel
Contact for price
2133193
ROD AS-CON
US$ 279.29
2165586
BEARING-SL
US$ 17.15
2195847
HEAD GP-CY
US$ 3,457.70
2195849
Cover
Contact for price
2275480
CRANKSHAFT
US$ 4,817.32
2358928
LINER
US$ 154.21
2369528
LINER
US$ 25.19
2369529
LINER
US$ 13.17
2369536
LINER
US$ 17.77
2369539
LINER
US$ 8.01
View all 39 Engine Block parts →

Pin/Bushing (30 parts)

0860523
PIN
US$ 291.93
0875974
PIN
US$ 4.92
0964902
PIN
US$ 6.07
1273913
PIN A
US$ 139.78
1347178
PIN
US$ 6.90
1761941
PIN
US$ 2.88
1865637
PIN
US$ 1,006.38
1865662
PIN
US$ 439.20
1865663
PIN AS
US$ 435.50
1883065
PIN-TCK MA
US$ 44.60
1912694
SHAFT-PINI
US$ 2,358.02
1920573
PIN-DOWEL
US$ 2.69
2343803
PIN AS
US$ 860.28
2343930
PIN
US$ 792.48
2343931
PIN AS
US$ 729.32
View all 30 Pin/Bushing parts →

Excavator (28 parts)

2270621
XT-6ES(1E
US$ 338.82
2270674
XT-6ES(1E
US$ 369.94
2363005
XT-6ES(1E
US$ 230.96
2363009
XT-6ES(1E
US$ 238.49
2489866
XT-6ES(1E
US$ 244.41
2489870
XT-6ES(1E
US$ 221.13
2489874
XT-6ES(1E
US$ 251.94
2489878
XT-6ES(1E
US$ 225.83
2489882
XT-6ES(1E
US$ 291.75
2489896
XT-6ES(1E
US$ 283.04
2536557
XT-6ES(1E
US$ 520.46
2536558
XT-6ES(1E
US$ 364.66
2536562
XT-6ES(1E
US$ 535.28
2536566
XT-6ES(1E
US$ 192.66
2536621
XT-6ES(1E
US$ 342.59
View all 28 Excavator parts →

Spring (25 parts)

0964389
SPRING
US$ 3.80
0965915
RETAINER
US$ 18.99
0993671
SPRING
US$ 3.46
1047293
SPRING
US$ 19.23
1047294
SPRING
US$ 19.91
1047296
SPRING
US$ 22.81
1376717
SPRING
US$ 5.14
1376718
SPRING-VAL
US$ 14.60
1680763
RETAINER
US$ 150.15
1710184
SPRING
US$ 6.48
1850172
RETAINER
US$ 33.79
1858281
SPRING
US$ 10.51
1913201
SPRING
US$ 178.49
1941244
SPRING
US$ 2,129.08
2034889
SPRING
US$ 60.00
View all 25 Spring parts →

Seal (22 parts)

0336027
O RING
US$ 4.25
0931342
O-RING
US$ 5.60
0951543
O-RING
US$ 2.03
0951547
O-RING
US$ 2.28
0951597
O-RING
US$ 1.61
0951600
O-RING
US$ 1.76
0951680
O-RING
US$ 4.17
0951719
O-RING
US$ 4.00
0957382
RETAINER 9
US$ 14.25
0960121
O-RING
US$ 3.51
0963944
O RING
US$ 15.16
1588086
COLLAR-TCK
US$ 63.16
2457829
PACKING
US$ 3.85
2457838
PACKING
US$ 2.31
2457869
PACKING
US$ 9.12
View all 22 Seal parts →

Piston Assembly (19 parts)

0874757
PISTON
US$ 27.60
1438023
PISTON
US$ 317.52
1475860
PISTON AS
US$ 1,663.82
1687224
PIN-PISTON
US$ 29.89
1777496
RING-PSTN-
US$ 32.33
1793007
PISTON
US$ 333.35
1884210
PISTON A
US$ 1,582.23
1899771
RING PSTN
US$ 32.33
1979353
RING-INTME
US$ 22.20
1979354
RING-PISTO
US$ 22.20
1979386
RING-PISTO
US$ 22.20
2344573
PISTON
US$ 801.29
2344582
PISTON
US$ 530.90
2382698
BODY AS-PI
US$ 147.57
2382726
SKIRT-PIST
US$ 44.97
View all 19 Piston Assembly parts →

Drive Shaft (18 parts)

1129951
SHAFT
US$ 178.44
1141383
SHAFT
US$ 127.90
1399476
SHAFT AS.
US$ 43.32
1695601
SHAFT-PLAN
US$ 105.32
1695602
SHAFT-PLAN
US$ 124.53
1733406
SHAFT
US$ 381.64
1776973
DRIVE AS-F
US$ 1,241.51
1912693
DRIVE GP
US$ 19,599.02
1915539
SHAFT
US$ 89.62
2095894
SHAFT-DRIV
US$ 553.45
2254541
SHAFT
US$ 486.34
2254542
SHAFT-DRIV
US$ 374.38
2276116
DRIVE GP-F
US$ 19,732.95
2470564
SHAFT
US$ 219.72
6N3827
DRIVE A
US$ 78.10
View all 18 Drive Shaft parts →

Valve Assembly (17 parts)

0874742
VALVE
US$ 22.46
1344483
RETAINER
US$ 6.95
1376715
SEAT SPRIN
US$ 2.00
1388402
STAND-END
US$ 67.08
1406188
SPRING-VAL
US$ 10.06
1409670
GUIDE VALV
US$ 11.46
1457390
VALVE-INTA
US$ 32.69
1478211
VALVE-EXH
US$ 55.96
1478214
SEAL-V-STE
US$ 2.18
1535313
VALVE GP-R
US$ 1,010.85
1966582
VALVE
US$ 96.49
2175213
INSERT-VLV
US$ 10.50
2290992
VALVE GP-R
US$ 675.72
2555661
VALVE GP-R
US$ 151.25
2555662
VALVE GP-R
US$ 81.48
View all 17 Valve Assembly parts →

Hydraulic Valve (16 parts)

1092667
VALVE GP
US$ 82.76
1163526
VALVE GP
US$ 313.68
1549023
VALVE-SAMP
US$ 18.45
1734672
VALVE GP-C
US$ 604.57
2298870
REGULATOR
US$ 47.93
2391134
VALVE AS-E
US$ 143.88
2555652
VALVE GP-C
US$ 12,927.12
2555653
VALVE GP-C
US$ 15,972.58
2555660
VALVE GP-R
US$ 399.73
2555680
VALVE GP
US$ 1,067.90
2555683
VALVE GP
US$ 2,914.04
2597378
VALVE GP-C
US$ 2,375.24
2705947
VALVE GP-P
US$ 807.45
2705951
VALVE GP-P
US$ 1,164.47
2705952
VALVE GP-P
US$ 1,164.47
View all 16 Hydraulic Valve parts →

Switch/Relay (12 parts)

1095152
VALVE G
US$ 108.76
1636710
SWITCH AS
US$ 29.58
1659470
VALVE G
US$ 3,959.71
1772713
VALVE AS
US$ 106.97
1843830
VALVE G
US$ 553.44
1843833
VALVE AS
US$ 77.40
2034183
VALVE AS
US$ 116.69
2122768
SWITCH AS-
US$ 296.19
2382209
SWITCH AS-
US$ 20.20
2382210
SWITCH AS-
US$ 18.15
2382211
SWITCH AS
US$ 17.95
4I8789
VALVE G
US$ 638.33

Hydraulic Cylinder (10 parts)

1709938
CYLINDER A
US$ 1,979.86
1793008
CYLINDER
US$ 1,251.10
2166607
CYLINDER G
US$ 13,869.72
2166608
CYLINDER A
US$ 4,964.15
2254591
CYLINDER G
US$ 8,918.74
2344567
CYLINDER A
US$ 4,113.79
2344577
CYLINDER A
US$ 4,545.34
2344588
CYLINDER A
US$ 3,450.33
2426781
CYLINDER A
US$ 3,854.05
2487855
CYLINDER G
US$ 5,407.48

Hydraulic Pump (10 parts)

1782357
PUMP GP-FU
US$ 161.65
1898777
PUMP GP-GR
US$ 900.32
2004497
PUMP GP-GE
US$ 1,027.18
2344580
HYDRAULIC
US$ 781.46
2364413
PUMP GP-
US$ 526.74
2544357
PUMP GP -
US$ 1,931.95
2726959
PUMP GP-2P
US$ 14,186.37
3240532
PUMP GP-FU
US$ 2,743.67
3919442
Pump
Contact for price
4348188
Pump
Contact for price

Undercarriage (10 parts)

1912571
CARRIER-PL
US$ 2,124.70
1912579
CARRIER-PL
US$ 1,829.43
1912686
CARRIER AS
US$ 1,240.31
2276119
CARRIER-PL
US$ 2,287.80
2405063
SUSPENSION
US$ 1,406.52
2459217
CUSHION-RU
US$ 5.32
2512772
FRAME AS-U
US$ 67,300.57
2653580
FRAME AS
US$ 2,403.46
4W3462
CARRIER G
US$ 110.62
7I7728
CARRIER
US$ 2,456.98

FAQ

Are these genuine Caterpillar 325D 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 325D before dispatch and covered by a 12-month warranty.

How do I confirm the part number for my 325D?
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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