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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 - 74 of 74 results
John Deere 6.404T/A Turbocharged Engine Inframe Overhaul Rebuild Kit, Early
Our Price: From $1,477.18 to $1,548.12
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: $75.35
Our Price: $74.24
You Save: $1.11 (1 %)
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: $25.22
Our Price: $21.93
You Save: $3.29 (13 %)
John Deere Liner Sealing Ring Kit, AR65507
replaces: AR65507
John Deere Piston Ring Set, 1 cylinder set, AR51741
MSRP: $46.10
Our Price: $44.84
You Save: $1.26 (3 %)
John Deere Piston Ring Set, 1 cylinder set, AR51741
replaces: AR51741
John Deere Piston Pin, R41425
MSRP: $17.74
Our Price: $17.48
You Save: $0.26 (1 %)
John Deere Piston Pin, R41425
1.625 inch
John Deere Piston Pin Retainer, R54114
MSRP: $1.72
Our Price: $1.55
You Save: $0.17 (10 %)
John Deere Piston Pin Retainer, R54114
replaces: R54114
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 Head Gasket, R48291
MSRP: $51.05
Our Price: $50.30
You Save: $0.75 (1 %)
John Deere Head Gasket, R48291
replaces: R48291
John Deere Head Gasket Set, AR63270
MSRP: $108.77
Our Price: $99.79
You Save: $8.98 (8 %)
John Deere Head Gasket Set, AR63270
replaces: AR63270
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 Timing Cover Gasket, R47047
MSRP: $15.47
Our Price: $15.24
You Save: $0.23 (1 %)
John Deere Timing Cover Gasket, R47047
replaces: R47047
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, R50410
MSRP: $5.51
Our Price: $4.87
You Save: $0.64 (12 %)
John Deere Water Pump Gasket, R50410
Check application details.
John Deere Water Pump Plate Gasket, R43117
MSRP: $6.79
Our Price: $6.23
You Save: $0.56 (8 %)
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: $2.06
Our Price: $2.03
You Save: $0.03 (1 %)
John Deere Air Inlet Gasket, R81275
John Deere Valve Cover Gasket, R49866
MSRP: $10.16
Our Price: $10.01
You Save: $0.15 (1 %)
John Deere Valve Cover Gasket, R49866
replaces: R49866
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 Intake Manifold Gasket, R50397
MSRP: $4.15
Our Price: $3.80
You Save: $0.35 (8 %)
John Deere Intake Manifold Gasket, R50397
replaces: R50397
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 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, R42173
MSRP: $16.28
Our Price: $15.08
You Save: $1.20 (7 %)
John Deere Piston Pin Bushing, R42173
Pin Diameter: 1.61 in (41mm)
John Deere Valve Lifter, R52773
MSRP: $8.89
Our Price: $8.76
You Save: $0.13 (1 %)
John Deere Valve Lifter, R52773
replaces: R52773
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
MSRP: $6.31
Our Price: $5.84
You Save: $0.47 (7 %)
John Deere Camshaft Plug, R26115
replaces: R26115
John Deere Crankshaft, RE53422
MSRP: $2,512.13
Our Price: $2,475.00
You Save: $37.13 (1 %)
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, R43679
MSRP: $24.14
Our Price: $21.36
You Save: $2.78 (12 %)
John Deere Exhaust Valve, R43679
Standard stem
John Deere Exhaust Valve, R43787
MSRP: $17.02
Our Price: $15.76
You Save: $1.26 (7 %)
John Deere Exhaust Valve, R43787
.003 oversize stem
John Deere Exhaust Valve, R43788
MSRP: $18.12
Our Price: $15.76
You Save: $2.36 (13 %)
John Deere Exhaust Valve, R43788
.015 oversize stem
John Deere Intake Valve, R43883
MSRP: $25.72
Our Price: $23.38
You Save: $2.34 (9 %)
John Deere Intake Valve, R43883
45 degree
John Deere Intake Valve, R43914
MSRP: $18.59
Our Price: $16.75
You Save: $1.84 (10 %)
John Deere Intake Valve, R43914
30 degree
John Deere Intake Valve, R45003
MSRP: $19.70
Our Price: $19.41
You Save: $0.29 (1 %)
John Deere Intake Valve, R45003
.003 oversize stem
John Deere Intake Valve, R45004
MSRP: $18.86
Our Price: $18.51
You Save: $0.35 (2 %)
John Deere Intake Valve, R45004
.015 oversize stem
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, T20077
MSRP: $1.45
Our Price: $1.26
You Save: $0.19 (13 %)
John Deere Valve Keeper, T20077
replaces: T20077
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 404, 6.404, 466, 6.466 Head Bolt Kit, MX365
MSRP: $123.02
Our Price: $121.20
You Save: $1.82 (1 %)
John Deere 404, 6.404, 466, 6.466  Head Bolt Kit, MX365
Includes four different length head bolts
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: $2,692.71
Our Price: $2,569.05
You Save: $123.66 (5 %)
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: $247.06
Our Price: $243.41
You Save: $3.65 (1 %)
John Deere Oil Cooler, AR55394
8 plate
John Deere Oil Cooler, AT25038
MSRP: $285.77
Our Price: $262.17
You Save: $23.60 (8 %)
John Deere Oil Cooler, AT25038
12 plate
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 Thermostat, AR48675
MSRP: $16.71
Our Price: $16.46
You Save: $0.25 (1 %)
John Deere Thermostat, AR48675
180 degrees
John Deere Thermostat, AR77411
MSRP: $105.93
Our Price: $104.36
You Save: $1.57 (1 %)
John Deere Thermostat, AR77411
195 degrees
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 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: $108.63
You Save: $69.19 (39 %)
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 Fuel Lift Transfer Pump, RE42211
Our Price: From $39.99 to $41.00
John Deere Fuel Lift Transfer Pump, RE42211
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