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S4D155-4, Build 14

Our Komatsu parts meet or exceed the OEM specifications. After production, these parts are individually tested ensuring exact fitment and reducing out of box failures. Not only are these Komatsu parts rigorously tested in a multi-hour run-in environment to certify proper and continuous operation over long periods of time, they are also made of industry leading materials and processes.
Displaying products 1 - 57 of 57 results
Komatsu Cylinder Kit, KMP6127
MSRP: $352.87
Our Price: $306.84
You Save: $46.03 (13 %)
Komatsu Cylinder Kit, KMP6127
Komatsu Cylinder Liner, 6128-21-2216
MSRP: $140.87
Our Price: $122.49
You Save: $18.38 (13 %)
Komatsu Cylinder Liner, 6128-21-2216
Komatsu Liner Seal Set, KMP-SK-155
MSRP: $14.62
Our Price: $13.54
You Save: $1.08 (7 %)
Komatsu Liner Seal Set, KMP-SK-155
Komatsu Piston with pin and pin retainers, 6127-31-2030
MSRP: $175.04
Our Price: $157.70
You Save: $17.34 (10 %)
Komatsu Piston with pin and pin retainers, 6127-31-2030
Komatsu Piston with pin retainers, 6127-31-2140
MSRP: $139.73
Our Price: $129.38
You Save: $10.35 (7 %)
Komatsu Piston with pin retainers, 6127-31-2140
Komatsu Piston Ring Set, 1 cylinder, 6128-31-2070
MSRP: $47.51
Our Price: $44.00
You Save: $3.51 (7 %)
Komatsu Piston Ring Set, 1 cylinder, 6128-31-2070
Komatsu Piston Pin Retainer, 6120-31-2120
MSRP: $2.41
Our Price: $2.21
You Save: $0.20 (8 %)
Komatsu Piston Pin Retainer, 6120-31-2120
Komatsu Main Bearing Set, Standard, 6127-21-8002
MSRP: $180.56
Our Price: $164.15
You Save: $16.41 (9 %)
Komatsu Main Bearing Set, Standard, 6127-21-8002
Komatsu Main Bearing Set, Standard, 6127-21-8071
MSRP: $158.73
Our Price: $141.72
You Save: $17.01 (11 %)
Komatsu Main Bearing Set, Standard, 6127-21-8071
Komatsu Rod Bearing, Standard, 6127-31-3042
MSRP: $18.91
Our Price: $17.04
You Save: $1.87 (10 %)
Komatsu Rod Bearing, Standard, 6127-31-3042
Komatsu Rod Bearing, .25mm, 6127-39-3042
MSRP: $34.50
Our Price: $30.00
You Save: $4.50 (13 %)
Komatsu Rod Bearing, .25mm, 6127-39-3042
Komatsu Rod Bearing, .50mm, 6127-38-3042
MSRP: $20.08
Our Price: $18.09
You Save: $1.99 (10 %)
Komatsu Rod Bearing, .50mm, 6127-38-3042
Komatsu Rod Bearing, .75mm, 6127-36-3042
MSRP: $22.66
Our Price: $20.99
You Save: $1.67 (7 %)
Komatsu Rod Bearing, .75mm, 6127-36-3042
Komatsu Rod Bearing, .75mm, 6127-37-3042
MSRP: $36.31
Our Price: $32.71
You Save: $3.60 (10 %)
Komatsu Rod Bearing, .75mm, 6127-37-3042
Komatsu Thrust Bearing, Standard, 6127-21-8051
MSRP: $25.34
Our Price: $22.43
You Save: $2.91 (11 %)
Komatsu Thrust Bearing, Standard, 6127-21-8051
Komatsu Thrust Bearing, .25mm, 6127-29-8051
MSRP: $63.47
Our Price: $57.18
You Save: $6.29 (10 %)
Komatsu Thrust Bearing, .25mm, 6127-29-8051
Komatsu Thrust Bearing, .50mm, 6127-28-8051
MSRP: $73.30
Our Price: $64.87
You Save: $8.43 (12 %)
Komatsu Thrust Bearing, .50mm, 6127-28-8051
Komatsu Thrust Bearing, .75mm, 6127-27-8051
MSRP: $50.48
Our Price: $44.29
You Save: $6.19 (12 %)
Komatsu Thrust Bearing, .75mm, 6127-27-8051
Komatsu Thrust Bearing, 1.00mm, 6127-26-8051
MSRP: $50.70
Our Price: $44.48
You Save: $6.22 (12 %)
Komatsu Thrust Bearing, 1.00mm, 6127-26-8051
Komatsu Front Crankshaft Wear Sleeve, 6127-31-1190
MSRP: $87.13
Our Price: $78.50
You Save: $8.63 (10 %)
Komatsu Front Crankshaft Wear Sleeve, 6127-31-1190
Komatsu Front Seal, 6127-21-3510
MSRP: $39.26
Our Price: $34.74
You Save: $4.52 (12 %)
Komatsu Front Seal, 6127-21-3510
Komatsu Rear Crankshaft Wear Sleeve, 6127-31-1293
MSRP: $105.59
Our Price: $95.99
You Save: $9.60 (9 %)
Komatsu Rear Crankshaft Wear Sleeve, 6127-31-1293
Komatsu Rear Seal, 6128-21-4230
MSRP: $115.97
Our Price: $102.63
You Save: $13.34 (12 %)
Komatsu Rear Seal, 6128-21-4230
Komatsu Exhaust Manifold Gasket, 6127-11-5810
MSRP: $12.59
Our Price: $11.04
You Save: $1.55 (12 %)
Komatsu Exhaust Manifold Gasket, 6127-11-5810
Komatsu Gasket Maker, 3oz Tube, TB1207C
MSRP: $10.93
Our Price: $9.67
You Save: $1.26 (12 %)
Komatsu Gasket Maker, 3oz Tube, TB1207C
Komatsu Gasket, 6127-81-2810
MSRP: $26.88
Our Price: $24.43
You Save: $2.45 (9 %)
Komatsu Gasket, 6127-81-2810
Komatsu Grommet, 6127-11-1830
MSRP: $6.59
Our Price: $5.83
You Save: $0.76 (12 %)
Komatsu Grommet, 6127-11-1830
Komatsu Grommet, 6127-11-1841
MSRP: $1.22
Our Price: $1.12
You Save: $0.10 (8 %)
Komatsu Grommet, 6127-11-1841
Komatsu Thermostat Housing Gasket, 6127-11-6431
MSRP: $8.08
Our Price: $7.15
You Save: $0.93 (12 %)
Komatsu Thermostat Housing Gasket, 6127-11-6431
Komatsu Connecting Rod Nut, 6127-31-3321
MSRP: $2.40
Our Price: $2.13
You Save: $0.27 (11 %)
Komatsu Connecting Rod Nut, 6127-31-3321
Komatsu Connecting Rod, 6127-31-3101
MSRP: $633.00
Our Price: $555.26
You Save: $77.74 (12 %)
Komatsu Connecting Rod, 6127-31-3101
Komatsu Piston Pin Bushing, 6127-31-3131
MSRP: $10.83
Our Price: $9.67
You Save: $1.16 (11 %)
Komatsu Piston Pin Bushing, 6127-31-3131
Komatsu Camshaft Bearing, 6127-21-1490
MSRP: $12.12
Our Price: $10.92
You Save: $1.20 (10 %)
Komatsu Camshaft Bearing, 6127-21-1490
Komatsu Timing Gear Key, 04000-01540
MSRP: $33.51
Our Price: $30.74
You Save: $2.77 (8 %)
Komatsu Timing Gear Key, 04000-01540
Komatsu Crankshaft Gear, 6127-31-1120
MSRP: $284.00
Our Price: $253.58
You Save: $30.42 (11 %)
Komatsu Crankshaft Gear, 6127-31-1120
Komatsu Valve Spring, 6127-41-4410
MSRP: $7.76
Our Price: $6.93
You Save: $0.83 (11 %)
Komatsu Valve Spring, 6127-41-4410
Komatsu Valve Lock, 6127-41-4522
MSRP: $2.96
Our Price: $2.74
You Save: $0.22 (7 %)
Komatsu Valve Lock, 6127-41-4522
Komatsu Valve Guide, 6127-11-1341
MSRP: $3.58
Our Price: $3.19
You Save: $0.39 (11 %)
Komatsu Valve Guide, 6127-11-1341
Komatsu Valve Seat, 6127-11-1325
MSRP: $14.63
Our Price: $12.95
You Save: $1.68 (11 %)
Komatsu Valve Seat, 6127-11-1325
Exhaust
Komatsu Valve Seat, 6127-11-1335
MSRP: $13.40
Our Price: $12.30
You Save: $1.10 (8 %)
Komatsu Valve Seat, 6127-11-1335
Intake
Komatsu Valve Seat, .25mm, 6127-19-1325
MSRP: $20.11
Our Price: $17.95
You Save: $2.16 (11 %)
Komatsu Valve Seat, .25mm, 6127-19-1325
Exhaust
Komatsu Valve Seat, .25mm, 6127-19-1335
MSRP: $15.10
Our Price: $13.25
You Save: $1.85 (12 %)
Komatsu Valve Seat, .25mm, 6127-19-1335
Intake
Komatsu Retainer, 6127-11-1851
MSRP: $6.44
Our Price: $5.86
You Save: $0.58 (9 %)
Komatsu Retainer, 6127-11-1851
Komatsu Valve Spring Retainer, Lower, 6127-41-4530
MSRP: $3.45
Our Price: $3.05
You Save: $0.40 (12 %)
Komatsu Valve Spring Retainer, Lower, 6127-41-4530
Komatsu Valve Spring Retainer, Upper, 6127-41-4510
MSRP: $12.53
Our Price: $11.18
You Save: $1.35 (11 %)
Komatsu Valve Spring Retainer, Upper, 6127-41-4510
Komatsu Valve Seal, 6127-41-4541
MSRP: $5.04
Our Price: $4.42
You Save: $0.62 (12 %)
Komatsu Valve Seal, 6127-41-4541
Komatsu Push Rod, 6127-41-3113
MSRP: $35.77
Our Price: $33.12
You Save: $2.65 (7 %)
Komatsu Push Rod, 6127-41-3113
Komatsu Water Pump Impeller, 6124-61-1333
MSRP: $159.42
Our Price: $139.84
You Save: $19.58 (12 %)
Komatsu Water Pump Impeller, 6124-61-1333
Komatsu Water Pump, 6124-61-1004
MSRP: $866.30
Our Price: $802.13
You Save: $64.17 (7 %)
Komatsu Water Pump, 6124-61-1004
Komatsu Water Pump Seal, 6211-61-1530
MSRP: $20.40
Our Price: $18.22
You Save: $2.18 (11 %)
Komatsu Water Pump Seal, 6211-61-1530
Komatsu Water Pump Shaft, 6124-61-1312
MSRP: $141.36
Our Price: $126.22
You Save: $15.14 (11 %)
Komatsu Water Pump Shaft, 6124-61-1312
Komatsu Thermostat, 600-421-6630
MSRP: $35.97
Our Price: $33.00
You Save: $2.97 (8 %)
Komatsu Thermostat, 600-421-6630
Komatsu Fuel Injector Nozzle, 6127-11-3133
MSRP: $32.42
Our Price: $28.19
You Save: $4.23 (13 %)
Komatsu Fuel Injector Nozzle, 6127-11-3133
Komatsu Injector Sleeve, 6128-11-1130
MSRP: $36.39
Our Price: $31.64
You Save: $4.75 (13 %)
Komatsu Injector Sleeve, 6128-11-1130
Komatsu Fuel Filter, 6110-70-6202
MSRP: $15.38
Our Price: $13.49
You Save: $1.89 (12 %)
Komatsu Fuel Filter, 6110-70-6202
Komatsu Oil Filter, 154-19-12130
MSRP: $22.99
Our Price: $21.10
You Save: $1.89 (8 %)
Komatsu Oil Filter, 154-19-12130
Komatsu Oil Filter, 6120-50-5103
MSRP: $20.22
Our Price: $18.22
You Save: $2.00 (10 %)
Komatsu Oil Filter, 6120-50-5103