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6.404D Replacement Block

To Engine Serial Number 214,999
Bore: 4.25 in (108mm)

Pin Diameter: 1.500 in (38mm)

Piston marked: RE23172
Block marked: R40930
Connecting rod marked: R26047, R58880, R66923

Agricultural: 4010, 4020

Displaying products 1 - 71 of 71 results
John Deere 6.404D Engine Inframe Overhaul Rebuild Kit, Replacement Block
Our Price: From $1,025.14 to $1,099.85
John Deere 6.404D Engine Inframe Overhaul Rebuild Kit, Replacement Block
To Engine Serial Number 214,999
free shipping
John Deere Cylinder Kit, RE23170
MSRP: $186.07
Our Price: $139.56
You Save: $46.51 (25 %)
John Deere Cylinder Kit, RE23170
Piston, RE23172
John Deere Cylinder Sleeve, R32050
MSRP: $60.33
Our Price: $45.24
You Save: $15.09 (25 %)
John Deere Cylinder Sleeve, R32050
Fits 4.270D Engine block casting numbers: R26160, R32020, R40850 and 6.404D Engine block casting numbers: R26070, R33180, R34340, R40890, R40900
John Deere Liner Sealing Ring Kit, AR65507
MSRP: $7.35
Our Price: $5.51
You Save: $1.84 (25 %)
John Deere Liner Sealing Ring Kit, AR65507
replaces: AR65507
John Deere Piston Pin, R44161
MSRP: $17.92
Our Price: $13.44
You Save: $4.48 (25 %)
John Deere Piston Pin, R44161
Pin Diameter: 1.500 in (38mm)
John Deere Piston Pin Retainer, H80753
MSRP: $4.22
Our Price: $1.64
You Save: $2.58 (61 %)
John Deere Piston Pin Retainer, H80753
replaces: H80753
John Deere Main Bearing, Standard, AR74814
MSRP: $23.02
Our Price: $17.26
You Save: $5.76 (25 %)
John Deere Main Bearing, Standard, AR74814
Standard
John Deere Thrust Main Bearing, Standard, AR77748
MSRP: $36.00
Our Price: $27.01
You Save: $8.99 (25 %)
John Deere Thrust Main Bearing, Standard, AR77748
Standard
John Deere Main Bearing, .010, AR74816
MSRP: $23.02
Our Price: $17.26
You Save: $5.76 (25 %)
John Deere Main Bearing, .010, AR74816
.010 (.25mm)
John Deere Thrust Main Bearing, .010, AR77750
MSRP: $36.00
Our Price: $27.01
You Save: $8.99 (25 %)
John Deere Thrust Main Bearing, .010, AR77750
.010 (.25mm)
John Deere Main Bearing, .020, AR74817
MSRP: $23.02
Our Price: $17.26
You Save: $5.76 (25 %)
John Deere Main Bearing, .020, AR74817
.020 (.50mm)
John Deere Thrust Main Bearing, .020, AR77751
MSRP: $36.00
Our Price: $27.01
You Save: $8.99 (25 %)
John Deere Thrust Main Bearing, .020, AR77751
.020 (.50mm)
John Deere Main Bearing, .030, AR74818
MSRP: $23.02
Our Price: $17.26
You Save: $5.76 (25 %)
John Deere Main Bearing, .030, AR74818
.030 (.75mm)
John Deere Thrust Main Bearing, .030, AR77752
MSRP: $36.00
Our Price: $27.01
You Save: $8.99 (25 %)
John Deere Thrust Main Bearing, .030, AR77752
.030 (.75mm)
John Deere Rod Bearing, Standard, AR45723
MSRP: $13.08
Our Price: $9.81
You Save: $3.27 (25 %)
John Deere Rod Bearing, Standard, AR45723
Standard
John Deere Rod Bearing, .010, AR46396
MSRP: $13.08
Our Price: $9.81
You Save: $3.27 (25 %)
John Deere Rod Bearing, .010, AR46396
.010 (.25mm)
John Deere Rod Bearing, .020, AR46397
MSRP: $13.08
Our Price: $9.81
You Save: $3.27 (25 %)
John Deere Rod Bearing, .020, AR46397
.020 (.50mm)
John Deere Rod Bearing, .030, AR46398
MSRP: $13.08
Our Price: $9.81
You Save: $3.27 (25 %)
John Deere Rod Bearing, .030, AR46398
.030 (.75mm)
John Deere Thrust Washer Set, Standard, AR77747
John Deere Thrust Washer Set, Standard, AR77747
MSRP: $20.53
Our Price: $15.39
You Save: $5.14 (25 %)
John Deere Thrust Washer Set, Standard, AR77747
Standard
John Deere Thrust Washer Set, .007, AR77753
MSRP: $32.39
Our Price: $24.30
You Save: $8.09 (25 %)
John Deere Thrust Washer Set, .007, AR77753
.007
John Deere Head Gasket, R45615
MSRP: $53.43
Our Price: $40.07
You Save: $13.36 (25 %)
John Deere Head Gasket, R45615
replaces: R45615
John Deere Head Gasket Set, AR53625
MSRP: $83.69
Our Price: $62.77
You Save: $20.92 (25 %)
John Deere Head Gasket Set, AR53625
replaces: AR53625
John Deere Oil Pan Gasket, R71918
MSRP: $20.49
Our Price: $15.36
You Save: $5.13 (25 %)
John Deere Oil Pan Gasket, R71918
With Aluminum Oil Pan use R49377 (RE504822)
John Deere Full Gasket Set, without crank seals, AR53626
MSRP: $131.66
Our Price: $98.74
You Save: $32.92 (25 %)
John Deere Full Gasket Set, without crank seals, AR53626
replaces: AR53626
John Deere Front Crank Seal & Sleeve, AR49025
MSRP: $15.97
Our Price: $11.98
You Save: $3.99 (25 %)
John Deere Front Crank Seal & Sleeve, AR49025
replaces: AR49025
John Deere Front Crank Seal, RE543639
MSRP: $23.40
Our Price: $17.55
You Save: $5.85 (25 %)
John Deere Front Crank Seal, RE543639
includes washer
John Deere Rear Crank Seal & Sleeve, RE520036
MSRP: $37.72
Our Price: $28.30
You Save: $9.42 (25 %)
John Deere Rear Crank Seal & Sleeve, RE520036
replaces: RE520036
John Deere Water Pump Gasket, R26341
MSRP: $2.49
Our Price: $1.87
You Save: $0.62 (25 %)
John Deere Water Pump Gasket, R26341
replaces: R26341
John Deere Water Pump Gasket, R26343
MSRP: $2.82
Our Price: $2.11
You Save: $0.71 (25 %)
John Deere Water Pump Gasket, R26343
replaces: R26343
John Deere Air Inlet Gasket, R81275
MSRP: $2.19
Our Price: $1.65
You Save: $0.54 (25 %)
John Deere Air Inlet Gasket, R81275
John Deere Exhaust Manifold Gasket, R83021
MSRP: $2.36
Our Price: $1.77
You Save: $0.59 (25 %)
John Deere Exhaust Manifold Gasket, R83021
John Deere Fuel Pump Gasket, R27285
MSRP: $3.41
Our Price: $1.32
You Save: $2.09 (61 %)
John Deere Fuel Pump Gasket, R27285
replaces: R27285
John Deere Oil Supply Tube O-Ring, R75892
MSRP: $5.75
Our Price: $2.00
You Save: $3.75 (65 %)
John Deere Oil Supply Tube O-Ring, R75892
Sold per seal
John Deere Thermostat Gasket, R54641
MSRP: $5.12
Our Price: $2.00
You Save: $3.12 (61 %)
John Deere Thermostat Gasket, R54641
John Deere Connecting Rod, AR70910
MSRP: $134.10
Our Price: $100.57
You Save: $33.53 (25 %)
John Deere Connecting Rod, AR70910
Fits John Deere 270, 404 engines with 1.50" Wrist Pins.
John Deere Connecting Rod Bolt, R66452
MSRP: $6.09
Our Price: $4.57
You Save: $1.52 (25 %)
John Deere Connecting Rod Bolt, R66452
For Machine Split Connecting Rods
John Deere Piston Pin Bushing, R30939
MSRP: $7.30
Our Price: $5.47
You Save: $1.83 (25 %)
John Deere Piston Pin Bushing, R30939
Requires boring after installation
John Deere Valve Lifter, R26342
MSRP: $13.82
Our Price: $10.36
You Save: $3.46 (25 %)
John Deere Valve Lifter, R26342
replaces: R26342
John Deere Camshaft Bearing, R46903
MSRP: $8.22
Our Price: $6.16
You Save: $2.06 (25 %)
John Deere Camshaft Bearing, R46903
Sold individually
John Deere Camshaft Plug, R26115
MSRP: $4.91
Our Price: $3.69
You Save: $1.22 (25 %)
John Deere Camshaft Plug, R26115
replaces: R26115
John Deere Crankshaft, RE53422
MSRP: $1,776.96
Our Price: $1,767.77
You Save: $9.19 (1 %)
John Deere Crankshaft, RE53422
Requires front key R116311 for the front damper
free shipping
John Deere Crankshaft Key, R116311
MSRP: $14.50
Our Price: $12.63
You Save: $1.87 (13 %)
John Deere Crankshaft Key, R116311
for RE53422 crankshaft
John Deere Exhaust Valve, R26123
MSRP: $14.57
Our Price: $10.93
You Save: $3.64 (25 %)
John Deere Exhaust Valve, R26123
4.270 To Engine Serial Number 157,001 and 6.404 To Engine Serial 82,801
John Deere Exhaust Valve, R44175
MSRP: $16.52
Our Price: $12.39
You Save: $4.13 (25 %)
John Deere Exhaust Valve, R44175
4.270 Engine Serial Numbers 157,002-280,000 and 6.404 Engine Serial Numbers 82,802-214,999
John Deere Intake Valve, R26124
MSRP: $14.57
Our Price: $10.93
You Save: $3.64 (25 %)
John Deere Intake Valve, R26124
4.270 To Engine Serial Number 157,001 and 6.404 To Engine Serial 82,801
John Deere Intake Valve, R44174
MSRP: $13.82
Our Price: $10.36
You Save: $3.46 (25 %)
John Deere Intake Valve, R44174
4.270 Engine Serial Numbers 157,002-280,000 and 6.404 Engine Serial Numbers 82,802-214,999
John Deere Valve Spring, R26125
MSRP: $2.65
Our Price: $1.98
You Save: $0.67 (25 %)
John Deere Valve Spring, R26125
replaces: R26125
John Deere Valve Keeper, B367R
MSRP: $2.37
Our Price: $1.01
You Save: $1.36 (57 %)
John Deere Valve Keeper, B367R
Sold individually
John Deere Valve Keeper, T20077
MSRP: $1.40
Our Price: $0.60
You Save: $0.80 (57 %)
John Deere Valve Keeper, T20077
replaces: T20077
John Deere Valve Guide, R28654
MSRP: $7.22
Our Price: $5.42
You Save: $1.80 (25 %)
John Deere Valve Guide, R28654
replaces: R28654
John Deere Valve Seat, R43680
MSRP: $9.34
Our Price: $7.00
You Save: $2.34 (25 %)
John Deere Valve Seat, R43680
Intake, standard
John Deere Valve Seat, R43681
MSRP: $10.26
Our Price: $7.70
You Save: $2.56 (25 %)
John Deere Valve Seat, R43681
Exhaust, standard
John Deere Valve Rotator, RE11410
MSRP: $9.03
Our Price: $6.77
You Save: $2.26 (25 %)
John Deere Valve Rotator, RE11410
Sold per rotator
John Deere Valve Seal, R87627
MSRP: $2.22
Our Price: $0.95
You Save: $1.27 (57 %)
John Deere Valve Seal, R87627
Sold per seal
John Deere Valve Stem Cap, T20129
MSRP: $4.99
Our Price: $3.49
You Save: $1.50 (30 %)
John Deere Valve Stem Cap, T20129
Sold per cap
John Deere Head Bolt, R88042
MSRP: $4.16
Our Price: $3.12
You Save: $1.04 (25 %)
John Deere Head Bolt, R88042
3.250 inch
John Deere Head Bolt, R88043
MSRP: $4.18
Our Price: $3.13
You Save: $1.05 (25 %)
John Deere Head Bolt, R88043
5.230 inch
John Deere Head Bolt, R88044
MSRP: $5.71
Our Price: $4.28
You Save: $1.43 (25 %)
John Deere Head Bolt, R88044
6.225 inch
John Deere Head Bolt, R88045
MSRP: $6.27
Our Price: $4.70
You Save: $1.57 (25 %)
John Deere Head Bolt, R88045
7.300 inch
John Deere 6404 Cylinder Head, Brand New, Loaded, RE12975
MSRP: $2,423.08
Our Price: $2,398.86
You Save: $24.22 (1 %)
John Deere 6404 Cylinder Head, Brand New, Loaded, RE12975
John Deere 6404, 6-404, 404 Cylinder Head, Brand New, Loaded, RE12975
free shipping
John Deere Oil Pump, AR41949
MSRP: $204.69
Our Price: $153.52
You Save: $51.17 (25 %)
John Deere Oil Pump, AR41949
replaces: AR41949
John Deere Oil Cooler Tube Sealing Ring, R47153
MSRP: $3.57
Our Price: $1.39
You Save: $2.18 (61 %)
John Deere Oil Cooler Tube Sealing Ring, R47153
replaces: R47153
John Deere Water Pump, AR45332
MSRP: $137.38
Our Price: $115.62
You Save: $21.76 (16 %)
John Deere Water Pump, AR45332
Interchanges: AR45332, R26337, R27547, R34977, R34982, R41315, R41318, R44122
John Deere Water Pump Repair Kit, AR55617
MSRP: $66.81
Our Price: $50.11
You Save: $16.70 (25 %)
John Deere Water Pump Repair Kit, AR55617
with impeller, Fits water pumps marked R26337, R27547, R34977, R34982
John Deere Thermostat, R36846
MSRP: $10.26
Our Price: $7.70
You Save: $2.56 (25 %)
John Deere Thermostat, R36846
180 degrees
John Deere Fuel Injector, AR50781
MSRP: $68.76
Our Price: $51.57
You Save: $17.19 (25 %)
John Deere Fuel Injector, AR50781
pencil
John Deere Fuel Injector Packing, R48000
MSRP: $3.72
Our Price: $1.45
You Save: $2.27 (61 %)
John Deere Fuel Injector Packing, R48000
replaces: R48000
John Deere Fuel Injector Packing, R60746
MSRP: $1.78
Our Price: $0.76
You Save: $1.02 (57 %)
John Deere Fuel Injector Packing, R60746
replaces: R60746
John Deere Fuel Lift Transfer Pump, AR49771
MSRP: $58.95
Our Price: $44.22
You Save: $14.73 (25 %)
John Deere Fuel Lift Transfer Pump, AR49771
From Engine Serial 422,366
John Deere Fuel Lift Transfer Pump, RE42211
MSRP: $47.04
Our Price: $39.80
You Save: $7.24 (15 %)
John Deere Fuel Lift Transfer Pump, RE42211
John Deere Flywheel Ring Gear, R28811
MSRP: $68.53
Our Price: $51.40
You Save: $17.13 (25 %)
John Deere Flywheel Ring Gear, R28811
129 Teeth