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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 - 72 of 72 results
John Deere 6.404D Engine Inframe Overhaul Rebuild Kit, Replacement Block
Our Price: From $1,203.10 to $1,290.79
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: $175.23
Our Price: $172.41
You Save: $2.82 (2 %)
John Deere Cylinder Kit, RE23170
Piston, RE23172
John Deere Cylinder Sleeve, R32050
John Deere Cylinder Sleeve, R32050
MSRP: $56.73
Our Price: $55.89
You Save: $0.84 (1 %)
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: $25.22
Our Price: $6.81
You Save: $18.41 (73 %)
John Deere Liner Sealing Ring Kit, AR65507
replaces: AR65507
John Deere Piston Pin, R44161
MSRP: $16.35
Our Price: $15.81
You Save: $0.54 (3 %)
John Deere Piston Pin, R44161
Pin Diameter: 1.500 in (38mm)
John Deere Piston Pin Retainer, H80753
MSRP: $1.79
Our Price: $1.55
You Save: $0.24 (13 %)
John Deere Piston Pin Retainer, H80753
replaces: H80753
John Deere Main Bearing, Standard, AR74814
MSRP: $22.82
Our Price: $20.38
You Save: $2.44 (11 %)
John Deere Main Bearing, Standard, AR74814
Standard
John Deere Thrust Main Bearing, Standard, AR77748
MSRP: $34.47
Our Price: $33.36
You Save: $1.11 (3 %)
John Deere Thrust Main Bearing, Standard, AR77748
Standard
John Deere Main Bearing, .010, AR74816
MSRP: $21.65
Our Price: $21.33
You Save: $0.32 (1 %)
John Deere Main Bearing, .010, AR74816
.010 (.25mm)
John Deere Thrust Main Bearing, .010, AR77750
MSRP: $36.00
Our Price: $32.14
You Save: $3.86 (11 %)
John Deere Thrust Main Bearing, .010, AR77750
.010 (.25mm)
John Deere Main Bearing, .020, AR74817
MSRP: $21.65
Our Price: $21.33
You Save: $0.32 (1 %)
John Deere Main Bearing, .020, AR74817
.020 (.50mm)
John Deere Thrust Main Bearing, .020, AR77751
MSRP: $33.86
Our Price: $33.36
You Save: $0.50 (1 %)
John Deere Thrust Main Bearing, .020, AR77751
.020 (.50mm)
John Deere Main Bearing, .030, AR74818
MSRP: $21.65
Our Price: $21.33
You Save: $0.32 (1 %)
John Deere Main Bearing, .030, AR74818
.030 (.75mm)
John Deere Thrust Main Bearing, .030, AR77752
MSRP: $33.86
Our Price: $33.36
You Save: $0.50 (1 %)
John Deere Thrust Main Bearing, .030, AR77752
.030 (.75mm)
John Deere Rod Bearing, Standard, AR45723
MSRP: $14.45
Our Price: $13.26
You Save: $1.19 (8 %)
John Deere Rod Bearing, Standard, AR45723
Standard
John Deere Rod Bearing, .010, AR46396
MSRP: $15.18
Our Price: $13.43
You Save: $1.75 (12 %)
John Deere Rod Bearing, .010, AR46396
.010 (.25mm)
John Deere Rod Bearing, .020, AR46397
MSRP: $15.15
Our Price: $13.41
You Save: $1.74 (11 %)
John Deere Rod Bearing, .020, AR46397
.020 (.50mm)
John Deere Rod Bearing, .030, AR46398
MSRP: $14.88
Our Price: $13.17
You Save: $1.71 (11 %)
John Deere Rod Bearing, .030, AR46398
.030 (.75mm)
John Deere Thrust Washer Set, Standard, AR77747
John Deere Thrust Washer Set, Standard, AR77747
MSRP: $25.71
Our Price: $23.37
You Save: $2.34 (9 %)
John Deere Thrust Washer Set, Standard, AR77747
Standard
John Deere Thrust Washer Set, .007, AR77753
MSRP: $29.31
Our Price: $27.26
You Save: $2.05 (7 %)
John Deere Thrust Washer Set, .007, AR77753
.007
John Deere 381, 404 Diesel (Early) Head Gasket, R45615
MSRP: $53.66
Our Price: $47.49
You Save: $6.17 (11 %)
John Deere 381, 404 Diesel (Early) Head Gasket, R45615
Fits 381, 404 Diesel (Early)
John Deere Head Gasket Set, AR53625
John Deere Head Gasket Set, AR53625
MSRP: $95.40
Our Price: $85.18
You Save: $10.22 (11 %)
John Deere Head Gasket Set, AR53625
replaces: AR53625
John Deere Oil Pan Gasket, R71918
MSRP: $27.44
Our Price: $27.03
You Save: $0.41 (1 %)
John Deere Oil Pan Gasket, R71918
With Aluminum Oil Pan use R49377 (RE504822)
John Deere Full Gasket Set, without crank seals, AR53626
John Deere Full Gasket Set, without crank seals, AR53626
MSRP: $161.09
Our Price: $141.30
You Save: $19.79 (12 %)
John Deere Full Gasket Set, without crank seals, AR53626
replaces: AR53626
John Deere Front Crank Seal & Sleeve, AR49025
MSRP: $18.56
Our Price: $16.28
You Save: $2.28 (12 %)
John Deere Front Crank Seal & Sleeve, AR49025
replaces: AR49025
John Deere Front Crank Seal, RE543639
MSRP: $22.02
Our Price: $21.69
You Save: $0.33 (1 %)
John Deere Front Crank Seal, RE543639
includes washer
John Deere Rear Crank Seal & Sleeve, RE520036
MSRP: $39.20
Our Price: $34.39
You Save: $4.81 (12 %)
John Deere Rear Crank Seal & Sleeve, RE520036
replaces: RE520036
John Deere Water Pump Gasket, R26341
John Deere Water Pump Gasket, R26341
MSRP: $2.47
Our Price: $2.25
You Save: $0.22 (9 %)
John Deere Water Pump Gasket, R26341
replaces: R26341
John Deere Water Pump Gasket, R26343
John Deere Water Pump Gasket, R26343
MSRP: $3.07
Our Price: $2.76
You Save: $0.31 (10 %)
John Deere Water Pump Gasket, R26343
replaces: R26343
John Deere Air Inlet Gasket, R81275
MSRP: $2.06
Our Price: $2.03
You Save: $0.03 (1 %)
John Deere Air Inlet Gasket, R81275
John Deere Exhaust Manifold Gasket, R83021
MSRP: $5.06
Our Price: $4.40
You Save: $0.66 (13 %)
John Deere Exhaust Manifold Gasket, R83021
John Deere Fuel Pump Gasket, R27285
John Deere Fuel Pump Gasket, R27285
MSRP: $1.54
Our Price: $1.37
You Save: $0.17 (11 %)
John Deere Fuel Pump Gasket, R27285
replaces: R27285
John Deere Oil Supply Tube O-Ring, R75892
MSRP: $1.65
Our Price: $1.46
You Save: $0.19 (12 %)
John Deere Oil Supply Tube O-Ring, R75892
Sold per seal
John Deere Thermostat Gasket, R54641
MSRP: $1.92
Our Price: $1.89
You Save: $0.03 (2 %)
John Deere Thermostat Gasket, R54641
John Deere Connecting Rod, AR70910
John Deere Connecting Rod, AR70910
MSRP: $126.11
Our Price: $124.25
You Save: $1.86 (1 %)
John Deere Connecting Rod, AR70910
Fits John Deere 270, 404 engines with 1.50" Wrist Pins.
John Deere Connecting Rod Bolt, R66452
MSRP: $5.72
Our Price: $5.64
You Save: $0.08 (1 %)
John Deere Connecting Rod Bolt, R66452
For Machine Split Connecting Rods
John Deere Piston Pin Bushing, R30939
MSRP: $6.87
Our Price: $6.77
You Save: $0.10 (1 %)
John Deere Piston Pin Bushing, R30939
Requires boring after installation
John Deere Valve Lifter, R26342
MSRP: $12.99
Our Price: $12.80
You Save: $0.19 (1 %)
John Deere Valve Lifter, R26342
replaces: R26342
John Deere Camshaft Bearing, R46903
MSRP: $9.23
Our Price: $8.09
You Save: $1.14 (12 %)
John Deere Camshaft Bearing, R46903
Sold individually
John Deere Camshaft Plug, R26115
John Deere Camshaft Plug, R26115
MSRP: $16.31
Our Price: $7.27
You Save: $9.04 (55 %)
John Deere Camshaft Plug, R26115
replaces: R26115
John Deere Crankshaft, RE53422
MSRP: $2,512.13
Our Price: $1,695.00
You Save: $817.13 (33 %)
John Deere Crankshaft, RE53422
Requires front key R116311 for the front damper
free shipping
John Deere Crankshaft Key, R116311
MSRP: $18.80
Our Price: $16.49
You Save: $2.31 (12 %)
John Deere Crankshaft Key, R116311
for RE53422 crankshaft
John Deere Exhaust Valve, R26123
MSRP: $13.97
Our Price: $13.50
You Save: $0.47 (3 %)
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: $17.24
Our Price: $15.25
You Save: $1.99 (12 %)
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: $13.70
Our Price: $13.50
You Save: $0.20 (1 %)
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: $15.48
Our Price: $13.82
You Save: $1.66 (11 %)
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
John Deere Valve Spring, R26125
MSRP: $3.55
Our Price: $3.22
You Save: $0.33 (9 %)
John Deere Valve Spring, R26125
Length: 2.173, OD: 1.375
John Deere Valve Keeper, B367R
MSRP: $0.67
Our Price: $0.58
You Save: $0.09 (13 %)
John Deere Valve Keeper, B367R
Sold individually
John Deere Valve Keeper, T20077
John Deere Valve Keeper, T20077
MSRP: $1.45
Our Price: $0.75
You Save: $0.70 (48 %)
John Deere Valve Keeper, T20077
replaces: T20077
John Deere Valve Guide, R28654
MSRP: $6.79
Our Price: $6.69
You Save: $0.10 (1 %)
John Deere Valve Guide, R28654
replaces: R28654
John Deere Valve Seat, R43680
MSRP: $10.90
Our Price: $9.82
You Save: $1.08 (10 %)
John Deere Valve Seat, R43680
Intake, standard
John Deere Valve Seat, R43681
MSRP: $12.74
Our Price: $11.27
You Save: $1.47 (12 %)
John Deere Valve Seat, R43681
Exhaust, standard
John Deere Valve Rotator, RE11410
MSRP: $9.67
Our Price: $9.53
You Save: $0.14 (1 %)
John Deere Valve Rotator, RE11410
Sold per rotator
John Deere Valve Seal, R87627
John Deere Valve Seal, R87627
MSRP: $0.62
Our Price: $0.56
You Save: $0.06 (10 %)
John Deere Valve Seal, R87627
Sold per seal
John Deere Valve Stem Cap, T20129
John Deere Valve Stem Cap, T20129
MSRP: $7.31
Our Price: $6.35
You Save: $0.96 (13 %)
John Deere Valve Stem Cap, T20129
Sold per cap
John Deere Head Bolt, R88042
MSRP: $6.92
Our Price: $6.35
You Save: $0.57 (8 %)
John Deere Head Bolt, R88042
3.250 inch
John Deere Head Bolt, R88043
MSRP: $4.17
Our Price: $4.11
You Save: $0.06 (1 %)
John Deere Head Bolt, R88043
5.230 inch
John Deere Head Bolt, R88044
MSRP: $9.11
Our Price: $7.93
You Save: $1.18 (13 %)
John Deere Head Bolt, R88044
6.225 inch
John Deere Head Bolt, R88045
MSRP: $5.71
Our Price: $5.63
You Save: $0.08 (1 %)
John Deere Head Bolt, R88045
7.300 inch
John Deere 6404 Cylinder Head, Brand New, Loaded, RE12975
MSRP: $3,292.71
Our Price: $2,945.44
You Save: $347.27 (11 %)
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: $192.50
Our Price: $189.66
You Save: $2.84 (1 %)
John Deere Oil Pump, AR41949
replaces: AR41949
John Deere Oil Cooler Tube Sealing Ring, R47153
MSRP: $1.36
Our Price: $1.24
You Save: $0.12 (9 %)
John Deere Oil Cooler Tube Sealing Ring, R47153
replaces: R47153
John Deere Water Pump, AR45332
MSRP: $146.61
Our Price: $142.31
You Save: $4.30 (3 %)
John Deere Water Pump, AR45332
Interchanges: AR45332, R26337, R27547, R34977, R34982, R41315, R41318, R44122
John Deere Water Pump Repair Kit, AR55617
John Deere Water Pump Repair Kit, AR55617
MSRP: $62.82
Our Price: $61.89
You Save: $0.93 (1 %)
John Deere Water Pump Repair Kit, AR55617
with impeller, Fits water pumps marked R26337, R27547, R34977, R34982
John Deere Thermostat, R36846
MSRP: $14.24
Our Price: $12.38
You Save: $1.86 (13 %)
John Deere Thermostat, R36846
180 degrees
John Deere Fuel Injector, AR50781
MSRP: $133.73
Our Price: From $57.29 to $88.94
John Deere Fuel Injector, AR50781
pencil
John Deere Fuel Injector Packing, R48000
MSRP: $1.09
Our Price: $1.00
You Save: $0.09 (8 %)
John Deere Fuel Injector Packing, R48000
replaces: R48000
John Deere Fuel Injector Packing, R60746
MSRP: $1.46
Our Price: $1.28
You Save: $0.18 (12 %)
John Deere Fuel Injector Packing, R60746
replaces: R60746
John Deere Fuel Line Leak Off Kit, RE27786
MSRP: $177.82
Our Price: $121.99
You Save: $55.83 (31 %)
John Deere Fuel Line Leak Off Kit, RE27786
replaces: RE15805, RE21103, AR88495, RE27786
John Deere Fuel Lift Transfer Pump, AR49771
MSRP: $55.44
Our Price: $54.62
You Save: $0.82 (1 %)
John Deere Fuel Lift Transfer Pump, AR49771
From Engine Serial 422,366
John Deere Flywheel Ring Gear, R28811
MSRP: $64.46
Our Price: $63.51
You Save: $0.95 (1 %)
John Deere Flywheel Ring Gear, R28811
129 Teeth