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6.303 O-rings in Block

From Engine Serial Number 158,976
Bore: 3.86 in (98mm)

Pin Diameter: 1.1878 in (30mm)

Block marked: R53260, R55035, R55351, R72970, R79280, T32346
Connecting rod marked: T20007, R81410
Piston marked: T23481

Agricultural: 3420
Construction Model: 540, 544

Displaying products 1 - 83 of 83 results
John Deere 6.303 Engine Inframe Overhaul Rebuild Kit, Late
John Deere 6.303 Engine Inframe Overhaul Rebuild Kit, Late
Our Price: From $1,212.47 to $1,300.42
John Deere 6.303 Engine Inframe Overhaul Rebuild Kit, Late
From Engine Serial Number 158,976
free shipping
John Deere 6.303 Engine Inframe Overhaul Rebuild Kit, Late, Absolute
John Deere 6.303 Engine Inframe Overhaul Rebuild Kit, Late, Absolute
Our Price: From $976.62 to $1,086.03
John Deere 6.303 Engine Inframe Overhaul Rebuild Kit, Late, Absolute
From Engine Serial Number 158,976
free shipping
John Deere 6-303 Overhaul Kit, FP Diesel
John Deere 6-303 Overhaul Kit, FP Diesel, Late
MSRP: $1,724.14
Our Price: $1,720.02
You Save: $4.12 (0 %)
John Deere 6-303 Overhaul Kit, FP Diesel, Late
From Engine Serial Number 158,976
free shipping
John Deere Cylinder Kit, AR71591
John Deere Cylinder Kit, AR71591
MSRP: $158.59
Our Price: $139.12
You Save: $19.47 (12 %)
John Deere Cylinder Kit, AR71591
Piston, T23481
John Deere Cylinder Sleeve, T32340
John Deere Cylinder Sleeve, T32340
MSRP: $58.33
Our Price: $56.90
You Save: $1.43 (2 %)
John Deere Cylinder Sleeve, T32340
replaces: T32340
John Deere Liner Sealing Ring Kit, AR71617
John Deere Liner Sealing Ring Kit, AR71617
MSRP: $7.58
Our Price: $7.47
You Save: $0.11 (1 %)
John Deere Liner Sealing Ring Kit, AR71617
replaces: AR71617
John Deere Piston, T23481
John Deere Piston, T23481
MSRP: $60.08
Our Price: $59.19
You Save: $0.89 (1 %)
John Deere Piston, T23481
replaces: T23481
John Deere Piston Ring Set, 1 cylinder set, AR70633
John Deere Piston Ring Set, 1 cylinder set, AR70633
MSRP: $40.51
Our Price: $27.21
You Save: $13.30 (33 %)
John Deere Piston Ring Set, 1 cylinder set, AR70633
replaces: AR70633
John Deere Piston Pin, T23482
John Deere Piston Pin, T23482
MSRP: $10.87
Our Price: $10.50
You Save: $0.37 (3 %)
John Deere Piston Pin, T23482
Pin Diameter: 1.1878 in
John Deere Piston Pin Retainer, R51112
John Deere Piston Pin Retainer, R51112
MSRP: $1.69
Our Price: $1.52
You Save: $0.17 (10 %)
John Deere Piston Pin Retainer, R51112
replaces: R51112
John Deere Main Bearing, Standard, RE27352
John Deere Main Bearing, Standard, RE27352
MSRP: $14.56
Our Price: $13.36
You Save: $1.20 (8 %)
John Deere Main Bearing, Standard, RE27352
Standard
John Deere Thrust Main Bearing, Standard, AT21139
John Deere Thrust Main Bearing, Standard, AT21139
MSRP: $30.35
Our Price: $29.90
You Save: $0.45 (1 %)
John Deere Thrust Main Bearing, Standard, AT21139
Standard
John Deere Main Bearing, .010, RE27353
John Deere Main Bearing, .010, RE27353
MSRP: $14.63
Our Price: $12.94
You Save: $1.69 (12 %)
John Deere Main Bearing, .010, RE27353
.010 (.25mm)
John Deere Thrust Main Bearing, .010, AT21132
John Deere Thrust Main Bearing, .010, AT21132
MSRP: $34.12
Our Price: $29.93
You Save: $4.19 (12 %)
John Deere Thrust Main Bearing, .010, AT21132
.010 (.25mm)
John Deere Main Bearing, .020, RE27360
John Deere Main Bearing, .020, RE27360
MSRP: $13.85
Our Price: $12.82
You Save: $1.03 (7 %)
John Deere Main Bearing, .020, RE27360
.020 (.50mm)
John Deere Thrust Main Bearing, .020, AT21134
John Deere Thrust Main Bearing, .020, AT21134
MSRP: $30.35
Our Price: $29.90
You Save: $0.45 (1 %)
John Deere Thrust Main Bearing, .020, AT21134
.020 (.50mm)
John Deere Main Bearing, .030, RE27368
John Deere Main Bearing, .030, RE27368
MSRP: $14.10
Our Price: $12.82
You Save: $1.28 (9 %)
John Deere Main Bearing, .030, RE27368
.030 (.75mm)
John Deere Thrust Main Bearing, .030, AT21136
John Deere Thrust Main Bearing, .030, AT21136
MSRP: $30.35
Our Price: $29.90
You Save: $0.45 (1 %)
John Deere Thrust Main Bearing, .030, AT21136
.030 (.75mm)
John Deere Rod Bearing, Standard, RE27348
John Deere Rod Bearing, Standard, RE27348
MSRP: $8.65
Our Price: $8.52
You Save: $0.13 (2 %)
John Deere Rod Bearing, Standard, RE27348
Standard
John Deere Rod Bearing, .010, RE27349
John Deere Rod Bearing, .010, RE27349
MSRP: $8.65
Our Price: $8.52
You Save: $0.13 (2 %)
John Deere Rod Bearing, .010, RE27349
.010 (.25mm)
John Deere Rod Bearing, .020, RE27358
John Deere Rod Bearing, .020, RE27358
MSRP: $10.88
Our Price: $9.54
You Save: $1.34 (12 %)
John Deere Rod Bearing, .020, RE27358
.020 (.50mm)
John Deere Rod Bearing, .030, RE27364
John Deere Rod Bearing, .030, RE27364
MSRP: $11.23
Our Price: $9.94
You Save: $1.29 (11 %)
John Deere Rod Bearing, .030, RE27364
.030 (.75mm)
John Deere Head Gasket, R98462
John Deere Head Gasket, R98462
MSRP: $73.04
Our Price: $71.96
You Save: $1.08 (1 %)
John Deere Head Gasket, R98462
replaces: R98462
John Deere Head Gasket Set, RE38571
John Deere Head Gasket Set, RE38571
MSRP: $152.68
Our Price: $150.42
You Save: $2.26 (1 %)
John Deere Head Gasket Set, RE38571
replaces: RE38571
John Deere Oil Pan Gasket, R97344
John Deere Oil Pan Gasket, R97344
MSRP: $25.87
Our Price: $21.56
You Save: $4.31 (17 %)
John Deere Oil Pan Gasket, R97344
replaces: R97344
John Deere Full Gasket Set, without crank seals, RE38568
John Deere Full Gasket Set, without crank seals, RE38568
MSRP: $208.82
Our Price: $205.73
You Save: $3.09 (1 %)
John Deere Full Gasket Set, without crank seals, RE38568
replaces: RE38568
John Deere Front Crank Seal, AR67942
John Deere Front Crank Seal, AR67942
MSRP: $8.88
Our Price: $8.22
You Save: $0.66 (7 %)
John Deere Front Crank Seal, AR67942
Do not use with Flywheel Housing marked T20300, T22991
John Deere Rear Crank Seal, RE44574
John Deere Rear Crank Seal, RE44574
MSRP: $29.92
Our Price: $27.20
You Save: $2.72 (9 %)
John Deere Rear Crank Seal, RE44574
Do not use with flywheel housings marked T20300, T22991
John Deere Air Inlet Gasket, R81275
John Deere Air Inlet Gasket, R81275
MSRP: $2.69
Our Price: $2.24
You Save: $0.45 (17 %)
John Deere Air Inlet Gasket, R81275
John Deere Valve Cover Gasket, R75728
John Deere Valve Cover Gasket, R75728
MSRP: $21.16
Our Price: $20.85
You Save: $0.31 (1 %)
John Deere Valve Cover Gasket, R75728
replaces: R75728
John Deere Valve Cover Gasket, T20467
John Deere Valve Cover Gasket, T20467
MSRP: $13.22
Our Price: $12.13
You Save: $1.09 (8 %)
John Deere Valve Cover Gasket, T20467
replaces: T20467
John Deere Exhaust Manifold Gasket, R83021
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 Pump Outlet Sealing Ring, R74354
John Deere Oil Pump Outlet Sealing Ring, R74354
MSRP: $0.84
Our Price: $0.77
You Save: $0.07 (8 %)
John Deere Oil Pump Outlet Sealing Ring, R74354
replaces: R74354, R27166
John Deere Oil Supply Tube O-Ring, R75892
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 Teflon Seal, AR101238
John Deere Teflon Seal, AR101238
MSRP: $9.75
Our Price: $8.87
You Save: $0.88 (9 %)
John Deere Teflon Seal, AR101238
Sold per seal
John Deere Thermostat Gasket, R54641
John Deere Thermostat Gasket, R54641
MSRP: $2.51
Our Price: $2.09
You Save: $0.42 (17 %)
John Deere Thermostat Gasket, R54641
John Deere Thermostat Gasket, T24932
John Deere Thermostat Gasket, T24932
MSRP: $1.88
Our Price: $1.70
You Save: $0.18 (10 %)
John Deere Thermostat Gasket, T24932
replaces: T24932
John Deere 152, 164, 179, 202, 219 New Connecting Rod, AT18005, RE19733
John Deere 152, 164, 179, 202, 219 New Connecting Rod, AT18005, RE19733
MSRP: $83.06
Our Price: $81.83
You Save: $1.23 (1 %)
John Deere 152, 164, 179, 202, 219 New Connecting Rod, AT18005, RE19733
Small Pin 1.187 (30mm pin diameter)
John Deere Connecting Rod Bolt, R74194
John Deere Connecting Rod Bolt, R74194
MSRP: $10.11
Our Price: $2.49
You Save: $7.62 (75 %)
John Deere Connecting Rod Bolt, R74194
Use with connecting rods marked T20007
John Deere Piston Pin Bushing, T23471
John Deere Piston Pin Bushing, T23471
MSRP: $11.39
Our Price: $5.10
You Save: $6.29 (55 %)
John Deere Piston Pin Bushing, T23471
Pin Diameter: 1.1878 in
John Deere Camshaft Kit, RE53884
John Deere Camshaft Kit, RE53884
MSRP: $450.12
Our Price: $375.10
You Save: $75.02 (17 %)
John Deere Camshaft Kit, RE53884
Camshaft is for threaded type tach drive shaft
John Deere Camshaft, R82821
John Deere Camshaft, R82821
MSRP: $321.83
Our Price: $317.07
You Save: $4.76 (1 %)
John Deere Camshaft, R82821
Threaded Type rear hole for tach drive
John Deere Valve Lifter, T20073
John Deere Valve Lifter, T20073
MSRP: $19.86
Our Price: $10.11
You Save: $9.75 (49 %)
John Deere Valve Lifter, T20073
replaces: T20073
John Deere Camshaft Gear, T20070
John Deere Camshaft Gear, T20070
MSRP: $97.62
Our Price: $96.18
You Save: $1.44 (1 %)
John Deere Camshaft Gear, T20070
replaces: T20070
John Deere Idler Bushing, T20034
John Deere Idler Bushing, T20034
MSRP: $7.80
Our Price: $6.90
You Save: $0.90 (12 %)
John Deere Idler Bushing, T20034
Upper
John Deere Idler Bushing, T26321
John Deere Idler Bushing, T26321
MSRP: $7.31
Our Price: $7.20
You Save: $0.11 (2 %)
John Deere Idler Bushing, T26321
Lower
John Deere Idler Gear, AT18009
John Deere Idler Gear, AT18009
MSRP: $95.45
Our Price: $94.04
You Save: $1.41 (1 %)
John Deere Idler Gear, AT18009
Upper
John Deere Idler Gear, AT24252
John Deere Idler Gear, AT24252
MSRP: $112.38
Our Price: $93.65
You Save: $18.73 (17 %)
John Deere Idler Gear, AT24252
Lower
John Deere Crankshaft, AT22562
John Deere Crankshaft, AT22562
MSRP: $2,137.94
Our Price: $1,495.00
You Save: $642.94 (30 %)
John Deere Crankshaft, AT22562
Casting Numbers: A102, A102R, AT22562, F1910R, F2729R, F2792R, F3315R, F3560R, F3561R, R108658, R108679, R26550, R26550R, R40730, RE45541, T23264T, T23299T, T23480T, T23517T, T23266T
John Deere Crankshaft Gear, T20094
John Deere Crankshaft Gear, T20094
MSRP: $64.00
Our Price: $63.05
You Save: $0.95 (1 %)
John Deere Crankshaft Gear, T20094
Helical gear
John Deere Exhaust Valve, R79624
John Deere Exhaust Valve, R79624
MSRP: $11.78
Our Price: $10.71
You Save: $1.07 (9 %)
John Deere Exhaust Valve, R79624
Standard stem, 45 degree
John Deere Exhaust Valve, R79625
John Deere Exhaust Valve, R79625
MSRP: $9.77
Our Price: $9.63
You Save: $0.14 (1 %)
John Deere Exhaust Valve, R79625
.003 oversize stem, 45 degree
John Deere Exhaust Valve, R79626
John Deere Exhaust Valve, R79626
MSRP: $12.47
Our Price: $10.39
You Save: $2.08 (17 %)
John Deere Exhaust Valve, R79626
.015 oversize stem, 45 degree
John Deere Intake Valve, R79623
John Deere Intake Valve, R79623
MSRP: $11.09
Our Price: $9.73
You Save: $1.36 (12 %)
John Deere Intake Valve, R79623
Standard stem, 45 degree
John Deere Intake Valve, R79628
John Deere Intake Valve, R79628
MSRP: $8.36
Our Price: $8.24
You Save: $0.12 (1 %)
John Deere Intake Valve, R79628
.003 oversize stem, 45 degree
John Deere Intake Valve, R79629
John Deere Intake Valve, R79629
MSRP: $8.36
Our Price: $8.24
You Save: $0.12 (1 %)
John Deere Intake Valve, R79629
.015 oversize stem, 45 degree
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
John Deere Valve Keeper, T20077
MSRP: $0.92
Our Price: $0.77
You Save: $0.15 (16 %)
John Deere Valve Keeper, T20077
replaces: T20077
John Deere Valve Seat, R51734
John Deere Valve Seat, R51734
MSRP: $14.66
Our Price: $13.21
You Save: $1.45 (10 %)
John Deere Valve Seat, R51734
Exhaust
John Deere Valve Seat, R73064
John Deere Valve Seat, R73064
MSRP: $10.26
Our Price: $10.11
You Save: $0.15 (1 %)
John Deere Valve Seat, R73064
Intake, 30 degree
John Deere Valve Rotator, RE11410
John Deere Valve Rotator, RE11410
MSRP: $12.24
Our Price: $10.20
You Save: $2.04 (17 %)
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 Valve Train Kit, AB1104
John Deere Valve Train Kit, AB1104
MSRP: $216.89
Our Price: $194.94
You Save: $21.95 (10 %)
John Deere Valve Train Kit, AB1104
replaces AB1104, RP959118
John Deere Push Rod, R82896
John Deere Push Rod, R82896
MSRP: $21.96
Our Price: $11.27
You Save: $10.69 (49 %)
John Deere Push Rod, R82896
9.21 length
John Deere Oil Cooler, RE31929
John Deere Oil Cooler, RE31929
MSRP: $218.40
Our Price: $182.00
You Save: $36.40 (17 %)
John Deere Oil Cooler, RE31929
donut type, 90 degree connections
John Deere Oil Pump, RE55343
John Deere Oil Pump, RE55343
MSRP: $167.51
Our Price: $67.00
You Save: $100.51 (60 %)
John Deere Oil Pump, RE55343
3 bolt back plate, double bend tube required, 1.625" gears
John Deere Oil Cooler Tube Sealing Ring, R61871
John Deere Oil Cooler Tube Sealing Ring, R61871
MSRP: $1.66
Our Price: $1.48
You Save: $0.18 (11 %)
John Deere Oil Cooler Tube Sealing Ring, R61871
Use with pump RE55343
John Deere Oil Pump Cover, R53382
John Deere Oil Pump Cover, R53382
MSRP: $16.16
Our Price: $14.18
You Save: $1.98 (12 %)
John Deere Oil Pump Cover, R53382
John Deere Oil Pump Intake Pickup Tube, R113752
John Deere Oil Pump Intake Pickup Tube, R113752
MSRP: $28.46
Our Price: $13.88
You Save: $14.58 (51 %)
John Deere Oil Pump Intake Pickup Tube, R113752
Use with pump RE55343
John Deere Water Pump Repair Kit, MX132
John Deere Water Pump Repair Kit, MX132
MSRP: $80.83
Our Price: $67.36
You Save: $13.47 (17 %)
John Deere Water Pump Repair Kit, MX132
with impeller, for water pump casting R51961, R73606, R73724, R79171
John Deere Water Pump Repair Kit, RE19510
John Deere Water Pump Repair Kit, RE19510
MSRP: $66.54
Our Price: $55.45
You Save: $11.09 (17 %)
John Deere Water Pump Repair Kit, RE19510
without impeller
John Deere Thermostat, AR77411
John Deere Thermostat, AR77411
MSRP: $133.45
Our Price: $111.21
You Save: $22.24 (17 %)
John Deere Thermostat, AR77411
195 degrees
John Deere Fuel Injector, AR89564
John Deere Fuel Injector, AR89564
Our Price: From $44.95 to $83.97
John Deere Fuel Injector, AR89564
pencil
John Deere Fuel Injector Packing, R48000
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, R79605
John Deere Fuel Injector Packing, R79605
MSRP: $5.70
Our Price: $2.79
You Save: $2.91 (51 %)
John Deere Fuel Injector Packing, R79605
minimum order qty 20
John Deere Fuel System Grommet Kit, MX506
John Deere Fuel System Grommet Kit, MX506
MSRP: $12.32
Our Price: $11.00
You Save: $1.32 (11 %)
John Deere Fuel System Grommet Kit, MX506
6 cylinder
John Deere Fuel Line Connector Kit, AR85618
John Deere Fuel Line Connector Kit, AR85618
MSRP: $12.24
Our Price: $10.73
You Save: $1.51 (12 %)
John Deere Fuel Line Connector Kit, AR85618
replaces: AR85618
John Deere Fuel Line Connector Kit, AT27622
John Deere Fuel Line Connector Kit, AT27622
MSRP: $9.43
Our Price: $8.73
You Save: $0.70 (7 %)
John Deere Fuel Line Connector Kit, AT27622
replaces: AT27622
John Deere Fuel Line Connector Nut, R51937
John Deere Fuel Line Connector Nut, R51937
MSRP: $4.10
Our Price: $3.22
You Save: $0.88 (21 %)
John Deere Fuel Line Connector Nut, R51937
replaces: R51937
John Deere Flywheel Ring Gear, R114282
John Deere Flywheel Ring Gear, R114282
MSRP: $33.34
Our Price: $32.85
You Save: $0.49 (1 %)
John Deere Flywheel Ring Gear, R114282
142 Teeth