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S4D102E-1, Build 3B

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 - 58 of 58 results
Komatsu Cylinder Kit, KMP1021
Komatsu Cylinder Kit, KMP1021
MSRP: $156.39
Our Price: $131.33
You Save: $25.06 (16 %)
Komatsu Cylinder Kit, KMP1021
Komatsu Cylinder Liner, 6736-29-2110
Komatsu Cylinder Liner, 6736-29-2110
MSRP: $36.30
Our Price: $27.92
You Save: $8.38 (23 %)
Komatsu Cylinder Liner, 6736-29-2110
Komatsu Piston with pin and pin retainers, 6735-31-2111WP
Komatsu Piston with pin and pin retainers, 6735-31-2111WP
MSRP: $114.53
Our Price: $83.76
You Save: $30.77 (27 %)
Komatsu Piston with pin and pin retainers, 6735-31-2111WP
Komatsu Piston with pin retainer and rings, 6735-31-2070
Komatsu Piston with pin retainer and rings, 6735-31-2070
MSRP: $99.57
Our Price: $67.10
You Save: $32.47 (33 %)
Komatsu Piston with pin retainer and rings, 6735-31-2070
Komatsu Piston with pin retainers, 6735-31-2111
Komatsu Piston with pin retainers, 6735-31-2111
MSRP: $95.51
Our Price: $71.41
You Save: $24.10 (25 %)
Komatsu Piston with pin retainers, 6735-31-2111
Komatsu Piston with pin retainers, 6735-31-2130
Komatsu Piston with pin retainers, 6735-31-2130
MSRP: $69.43
Our Price: $46.79
You Save: $22.64 (33 %)
Komatsu Piston with pin retainers, 6735-31-2130
Komatsu Piston with pin retainer and rings, .50mm, 6735-39-2060
Komatsu Piston with pin retainer and rings, .50mm, 6735-39-2060
MSRP: $102.15
Our Price: $76.76
You Save: $25.39 (25 %)
Komatsu Piston with pin retainer and rings, .50mm, 6735-39-2060
Komatsu Piston Ring Set, 1 cylinder, 6738-31-2031
Komatsu Piston Ring Set, 1 cylinder, 6738-31-2031
MSRP: $31.60
Our Price: $19.65
You Save: $11.95 (38 %)
Komatsu Piston Ring Set, 1 cylinder, 6738-31-2031
Komatsu Piston Ring Set, Standard, 1 cylinder, 6735-31-2040
Komatsu Piston Ring Set, Standard, 1 cylinder, 6735-31-2040
MSRP: $33.85
Our Price: $20.31
You Save: $13.54 (40 %)
Komatsu Piston Ring Set, Standard, 1 cylinder, 6735-31-2040
Komatsu Piston Ring Set, .50mm, 1 cylinder, 6735-31-2050
Komatsu Piston Ring Set, .50mm, 1 cylinder, 6735-31-2050
MSRP: $31.30
Our Price: $18.63
You Save: $12.67 (40 %)
Komatsu Piston Ring Set, .50mm, 1 cylinder, 6735-31-2050
Komatsu Piston Pin, 6731-31-2410
Komatsu Piston Pin, 6731-31-2410
MSRP: $13.09
Our Price: $12.35
You Save: $0.74 (6 %)
Komatsu Piston Pin, 6731-31-2410
Komatsu Piston Pin, 6736-31-2430
Komatsu Piston Pin, 6736-31-2430
MSRP: $15.20
Our Price: $11.69
You Save: $3.51 (23 %)
Komatsu Piston Pin, 6736-31-2430
Komatsu Piston Pin Retainer, 6732-31-2420
Komatsu Piston Pin Retainer, 6732-31-2420
MSRP: $0.51
Our Price: $0.39
You Save: $0.12 (24 %)
Komatsu Piston Pin Retainer, 6732-31-2420
Komatsu Piston Cooling Nozzle, 6731-21-1190
Komatsu Piston Cooling Nozzle, 6731-21-1190
MSRP: $1.03
Our Price: $0.54
You Save: $0.49 (48 %)
Komatsu Piston Cooling Nozzle, 6731-21-1190
Komatsu Main Bearing Set, Standard, 6732-29-8110
Komatsu Main Bearing Set, Standard, 6732-29-8110
MSRP: $57.19
Our Price: $43.99
You Save: $13.20 (23 %)
Komatsu Main Bearing Set, Standard, 6732-29-8110
Komatsu Main Bearing Set, .25mm, 6732-28-8100
Komatsu Main Bearing Set, .25mm, 6732-28-8100
MSRP: $68.76
Our Price: $52.89
You Save: $15.87 (23 %)
Komatsu Main Bearing Set, .25mm, 6732-28-8100
Komatsu Main Bearing Set, .50mm, 6732-27-8100
Komatsu Main Bearing Set, .50mm, 6732-27-8100
MSRP: $67.99
Our Price: $52.30
You Save: $15.69 (23 %)
Komatsu Main Bearing Set, .50mm, 6732-27-8100
Komatsu Main Bearing Set, .75mm, 6732-26-8100
Komatsu Main Bearing Set, .75mm, 6732-26-8100
MSRP: $59.89
Our Price: $46.07
You Save: $13.82 (23 %)
Komatsu Main Bearing Set, .75mm, 6732-26-8100
Komatsu Rod Bearing Upper, Standard, 6732-31-3411
Komatsu Rod Bearing Upper, Standard, 6732-31-3411
MSRP: $4.95
Our Price: $4.17
You Save: $0.78 (16 %)
Komatsu Rod Bearing Upper, Standard, 6732-31-3411
Komatsu Rod Bearing Upper, .25mm, 6736-39-3400
Komatsu Rod Bearing Upper, .25mm, 6736-39-3400
MSRP: $6.38
Our Price: $4.91
You Save: $1.47 (23 %)
Komatsu Rod Bearing Upper, .25mm, 6736-39-3400
Komatsu Rod Bearing Upper, .50mm, 6736-38-3400
Komatsu Rod Bearing Upper, .50mm, 6736-38-3400
MSRP: $6.46
Our Price: $4.48
You Save: $1.98 (31 %)
Komatsu Rod Bearing Upper, .50mm, 6736-38-3400
Komatsu Rod Bearing Upper, .75mm, 6736-37-3400
Komatsu Rod Bearing Upper, .75mm, 6736-37-3400
MSRP: $6.91
Our Price: $5.02
You Save: $1.89 (27 %)
Komatsu Rod Bearing Upper, .75mm, 6736-37-3400
Komatsu Rod Bearing Upper, 1.00mm, 6736-36-3400
Komatsu Rod Bearing Upper, 1.00mm, 6736-36-3400
MSRP: $7.55
Our Price: $5.25
You Save: $2.30 (30 %)
Komatsu Rod Bearing Upper, 1.00mm, 6736-36-3400
Komatsu Cylinder Head Gasket, 6732-11-1151
Komatsu Cylinder Head Gasket, 6732-11-1151
MSRP: $38.25
Our Price: $37.06
You Save: $1.19 (3 %)
Komatsu Cylinder Head Gasket, 6732-11-1151
Komatsu Head Gasket Set, 6731-11-9990
Komatsu Head Gasket Set, 6731-11-9990
MSRP: $107.42
Our Price: $101.35
You Save: $6.07 (6 %)
Komatsu Head Gasket Set, 6731-11-9990
Komatsu Head Gasket Set, 6731-12-9990
Komatsu Head Gasket Set, 6731-12-9990
MSRP: $128.96
Our Price: $101.35
You Save: $27.61 (21 %)
Komatsu Head Gasket Set, 6731-12-9990
Komatsu Head Gasket Set, 6732-K1-1100
Komatsu Head Gasket Set, 6732-K1-1100
MSRP: $134.88
Our Price: $101.35
You Save: $33.53 (25 %)
Komatsu Head Gasket Set, 6732-K1-1100
Komatsu Lower Gasket Set, 6732-01-1140
Komatsu Lower Gasket Set, 6732-01-1140
MSRP: $126.51
Our Price: $121.47
You Save: $5.04 (4 %)
Komatsu Lower Gasket Set, 6732-01-1140
Komatsu Front Seal Kit, 6731-21-4220
Komatsu Front Seal Kit, 6731-21-4220
MSRP: $16.65
Our Price: $13.19
You Save: $3.46 (21 %)
Komatsu Front Seal Kit, 6731-21-4220
Komatsu Rear Seal and Sleeve, 6736-39-1130
Komatsu Rear Seal and Sleeve, 6736-39-1130
MSRP: $48.44
Our Price: $37.26
You Save: $11.18 (23 %)
Komatsu Rear Seal and Sleeve, 6736-39-1130
Wet housings
Komatsu Rear Seal and Sleeve, 6736-39-1140
Komatsu Rear Seal and Sleeve, 6736-39-1140
MSRP: $50.62
Our Price: $49.04
You Save: $1.58 (3 %)
Komatsu Rear Seal and Sleeve, 6736-39-1140
Dry housings
Komatsu Camshaft Follower Gasket, 6732-21-6261
Komatsu Camshaft Follower Gasket, 6732-21-6261
MSRP: $12.42
Our Price: $7.39
You Save: $5.03 (40 %)
Komatsu Camshaft Follower Gasket, 6732-21-6261
Komatsu Gasket Kit, 6732-K2-1200
Komatsu Gasket Kit, 6732-K2-1200
MSRP: $156.00
Our Price: $121.47
You Save: $34.53 (22 %)
Komatsu Gasket Kit, 6732-K2-1200
Komatsu Gasket Maker, 3oz Tube, TB1207C
Komatsu Gasket Maker, 3oz Tube, TB1207C
MSRP: $10.93
Our Price: $6.56
You Save: $4.37 (40 %)
Komatsu Gasket Maker, 3oz Tube, TB1207C
Komatsu Gear Housing Gasket, 6731-21-3811
Komatsu Gear Housing Gasket, 6731-21-3811
MSRP: $12.71
Our Price: $7.77
You Save: $4.94 (39 %)
Komatsu Gear Housing Gasket, 6731-21-3811
Komatsu Oil Cooler Cover Gasket, 6732-51-4432
Komatsu Oil Cooler Cover Gasket, 6732-51-4432
MSRP: $10.23
Our Price: $6.37
You Save: $3.86 (38 %)
Komatsu Oil Cooler Cover Gasket, 6732-51-4432
Komatsu Oil Cooler Gasket, 6732-61-2311
Komatsu Oil Cooler Gasket, 6732-61-2311
MSRP: $18.41
Our Price: $11.95
You Save: $6.46 (35 %)
Komatsu Oil Cooler Gasket, 6732-61-2311
Komatsu Connecting Rod, 6737-32-3121
Komatsu Connecting Rod, 6737-32-3121
MSRP: $147.96
Our Price: $121.18
You Save: $26.78 (18 %)
Komatsu Connecting Rod, 6737-32-3121
Komatsu Rod Bolt, 6732-31-3311
Komatsu Rod Bolt, 6732-31-3311
MSRP: $7.51
Our Price: $4.50
You Save: $3.01 (40 %)
Komatsu Rod Bolt, 6732-31-3311
Komatsu Piston Pin Bushing, 6732-31-3132
Komatsu Piston Pin Bushing, 6732-31-3132
MSRP: $9.10
Our Price: $5.33
You Save: $3.77 (41 %)
Komatsu Piston Pin Bushing, 6732-31-3132
Komatsu Camshaft Bearing, 6732-21-1410
Komatsu Camshaft Bearing, 6732-21-1410
MSRP: $4.86
Our Price: $4.36
You Save: $0.50 (10 %)
Komatsu Camshaft Bearing, 6732-21-1410
Komatsu Crankshaft with Gear, 6732-31-1100
Komatsu Crankshaft with Gear, 6732-31-1100
MSRP: $903.22
Our Price: $874.99
You Save: $28.23 (3 %)
Komatsu Crankshaft with Gear, 6732-31-1100
Komatsu Valve Spring, 6732-41-4430
Komatsu Valve Spring, 6732-41-4430
MSRP: $8.64
Our Price: $4.56
You Save: $4.08 (47 %)
Komatsu Valve Spring, 6732-41-4430
36 psi
Komatsu Valve Seat, 6732-11-1170
Komatsu Valve Seat, 6732-11-1170
MSRP: $10.93
Our Price: $6.56
You Save: $4.37 (40 %)
Komatsu Valve Seat, 6732-11-1170
Exhaust
Komatsu Valve Seat, 6732-11-1180
Komatsu Valve Seat, 6732-11-1180
MSRP: $8.21
Our Price: $4.68
You Save: $3.53 (43 %)
Komatsu Valve Seat, 6732-11-1180
Intake
Komatsu Valve Spring Retainer, Upper, 6732-41-4510
Komatsu Valve Spring Retainer, Upper, 6732-41-4510
MSRP: $6.56
Our Price: $1.61
You Save: $4.95 (75 %)
Komatsu Valve Spring Retainer, Upper, 6732-41-4510
Komatsu Valve Seal, 6732-41-4540
Komatsu Valve Seal, 6732-41-4540
MSRP: $2.98
Our Price: $1.77
You Save: $1.21 (41 %)
Komatsu Valve Seal, 6732-41-4540
Komatsu Push Rod, 6732-41-3111
Komatsu Push Rod, 6732-41-3111
MSRP: $8.05
Our Price: $4.32
You Save: $3.73 (46 %)
Komatsu Push Rod, 6732-41-3111
Komatsu Rocker Arm Adjustment Screw, 6731-41-5270
Komatsu Rocker Arm Adjustment Screw, 6731-41-5270
MSRP: $3.70
Our Price: $1.88
You Save: $1.82 (49 %)
Komatsu Rocker Arm Adjustment Screw, 6731-41-5270
Komatsu Head Bolt, 6732-11-1610
Komatsu Head Bolt, 6732-11-1610
MSRP: $8.05
Our Price: $4.32
You Save: $3.73 (46 %)
Komatsu Head Bolt, 6732-11-1610
Komatsu Head Bolt, 6732-11-1620
Komatsu Head Bolt, 6732-11-1620
MSRP: $6.33
Our Price: $3.46
You Save: $2.87 (45 %)
Komatsu Head Bolt, 6732-11-1620
Komatsu Cylinder Block, 6731-22-1110
Komatsu Cylinder Block, 6731-22-1110
MSRP: $1,967.22
Our Price: $1,637.67
You Save: $329.55 (17 %)
Komatsu Cylinder Block, 6731-22-1110
Komatsu Cylinder Head, Loaded, 6731-11-1220
Komatsu Cylinder Head, Loaded, 6731-11-1220
MSRP: $997.04
Our Price: $926.45
You Save: $70.59 (7 %)
Komatsu Cylinder Head, Loaded, 6731-11-1220
Komatsu Oil Cooler Core, 6732-62-2110
Komatsu Oil Cooler Core, 6732-62-2110
MSRP: $115.94
Our Price: $80.94
You Save: $35.00 (30 %)
Komatsu Oil Cooler Core, 6732-62-2110
Komatsu Oil Pump, 6732-51-1112
Komatsu Oil Pump, 6732-51-1112
MSRP: $137.78
Our Price: $111.82
You Save: $25.96 (19 %)
Komatsu Oil Pump, 6732-51-1112
Komatsu Thermostat Kit, 6735-61-1690
Komatsu Thermostat Kit, 6735-61-1690
MSRP: $33.47
Our Price: $22.54
You Save: $10.93 (33 %)
Komatsu Thermostat Kit, 6735-61-1690
Komatsu Fuel Lift Pump, 6736-72-6530
Komatsu Fuel Lift Pump, 6736-72-6530
MSRP: $58.32
Our Price: $42.11
You Save: $16.21 (28 %)
Komatsu Fuel Lift Pump, 6736-72-6530
Komatsu Oil Filter, 6732-51-5142
Komatsu Oil Filter, 6732-51-5142
MSRP: $10.58
Our Price: $5.98
You Save: $4.60 (43 %)
Komatsu Oil Filter, 6732-51-5142