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6.404T/A Early

Engine Serial Number up to 335,845
Bore: 4.25 in (108mm)

Pin Diameter: 1.625 in (41mm)

Piston marked: RE23168
Block marked: R43310, R45980, R47020, R47110

Agricultural: 4320, 4520, 4620, 5440
Construction: 644, 644A, 646, 646B, 690, 690A

Displaying products 1 - 73 of 73 results
John Deere 6.404T/A Turbocharged Engine Inframe Overhaul Rebuild Kit, Early
Our Price: From $1,258.67 to $1,319.12
John Deere 6.404T/A Turbocharged Engine Inframe Overhaul Rebuild Kit, Early
Turbocharged Engine Serial Number up to 335,845
free shipping
John Deere Cylinder Sleeve, R40615
MSRP: $80.12
Our Price: $60.09
You Save: $20.03 (25 %)
John Deere Cylinder Sleeve, R40615
Fits 4.270D block casting numbers: R46350, R46430, R40910, R40700, R47520, R48430, R50610, R72127 and 6.404D/T/A block casting numbers: R40930, R40610, R40620, R45950, R47170, R48440, R49470, R49650, R59850, R72128, R87558, R43310, R45980, R47020, R47110
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 Ring Set, 1 cylinder set, AR51741
MSRP: $48.38
Our Price: $36.29
You Save: $12.09 (25 %)
John Deere Piston Ring Set, 1 cylinder set, AR51741
replaces: AR51741
John Deere Piston Pin, R41425
MSRP: $18.84
Our Price: $14.13
You Save: $4.71 (25 %)
John Deere Piston Pin, R41425
1.625 inch
John Deere Piston Pin Retainer, R54114
MSRP: $1.66
Our Price: $1.25
You Save: $0.41 (25 %)
John Deere Piston Pin Retainer, R54114
replaces: R54114
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, R48291
MSRP: $49.12
Our Price: $36.84
You Save: $12.28 (25 %)
John Deere Head Gasket, R48291
replaces: R48291
John Deere Head Gasket Set, AR63270
MSRP: $110.43
Our Price: $82.82
You Save: $27.61 (25 %)
John Deere Head Gasket Set, AR63270
replaces: AR63270
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 Timing Cover Gasket, R47047
MSRP: $16.44
Our Price: $12.34
You Save: $4.10 (25 %)
John Deere Timing Cover Gasket, R47047
replaces: R47047
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, R50410
MSRP: $5.54
Our Price: $4.33
You Save: $1.21 (22 %)
John Deere Water Pump Gasket, R50410
Check application details.
John Deere Water Pump Plate Gasket, R43117
MSRP: $4.50
Our Price: $3.37
You Save: $1.13 (25 %)
John Deere Water Pump Plate Gasket, R43117
Fits John Deere Models: 644, 644A, 646, 646B, 690, 690A, 4320, 4520, 4620, 5200, 5400, 7020
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 Valve Cover Gasket, R49866
MSRP: $8.09
Our Price: $6.07
You Save: $2.02 (25 %)
John Deere Valve Cover Gasket, R49866
replaces: R49866
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 Intake Manifold Gasket, R50397
MSRP: $2.15
Our Price: $1.62
You Save: $0.53 (25 %)
John Deere Intake Manifold Gasket, R50397
replaces: R50397
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 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, R42173
MSRP: $10.26
Our Price: $7.70
You Save: $2.56 (25 %)
John Deere Piston Pin Bushing, R42173
Pin Diameter: 1.61 in (41mm)
John Deere Valve Lifter, R52773
MSRP: $9.47
Our Price: $7.10
You Save: $2.37 (25 %)
John Deere Valve Lifter, R52773
replaces: R52773
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, R43679
MSRP: $16.41
Our Price: $12.31
You Save: $4.10 (25 %)
John Deere Exhaust Valve, R43679
Standard stem
John Deere Exhaust Valve, R43787
MSRP: $16.69
Our Price: $12.52
You Save: $4.17 (25 %)
John Deere Exhaust Valve, R43787
.003 oversize stem
John Deere Exhaust Valve, R43788
MSRP: $16.69
Our Price: $12.52
You Save: $4.17 (25 %)
John Deere Exhaust Valve, R43788
.015 oversize stem
John Deere Intake Valve, R43883
MSRP: $20.39
Our Price: $15.30
You Save: $5.09 (25 %)
John Deere Intake Valve, R43883
45 degree
John Deere Intake Valve, R43914
MSRP: $9.94
Our Price: $7.46
You Save: $2.48 (25 %)
John Deere Intake Valve, R43914
30 degree
John Deere Intake Valve, R45003
MSRP: $20.94
Our Price: $15.71
You Save: $5.23 (25 %)
John Deere Intake Valve, R45003
.003 oversize stem
John Deere Intake Valve, R45004
MSRP: $20.94
Our Price: $15.71
You Save: $5.23 (25 %)
John Deere Intake Valve, R45004
.015 oversize stem
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, T20077
MSRP: $1.40
Our Price: $0.60
You Save: $0.80 (57 %)
John Deere Valve Keeper, T20077
replaces: T20077
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 404, 6.404, 466, 6.466 Head Bolt Kit, MX365
MSRP: $121.81
Our Price: $98.48
You Save: $23.33 (19 %)
John Deere 404, 6.404, 466, 6.466  Head Bolt Kit, MX365
Includes four different length head bolts
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 Cooler, AR55394
MSRP: $248.84
Our Price: $186.63
You Save: $62.21 (25 %)
John Deere Oil Cooler, AR55394
8 plate
John Deere Oil Cooler, AT25038
MSRP: $268.63
Our Price: $201.47
You Save: $67.16 (25 %)
John Deere Oil Cooler, AT25038
12 plate
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 Thermostat, AR48675
MSRP: $14.62
Our Price: $11.50
You Save: $3.12 (21 %)
John Deere Thermostat, AR48675
180 degrees
John Deere Thermostat, AR77411
MSRP: $80.38
Our Price: $76.83
You Save: $3.55 (4 %)
John Deere Thermostat, AR77411
195 degrees
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 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