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  • Piston No: RE59277
  • Piston (m): 6153
  • Con Rod No: R71074
  • OEM Part #: RE526966
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John Deere 6.303 O’rings on Block

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AVAILABLE EQUIPMENT MODELS
Engine Series: 300
Engine Model: 6.303
Engine Desc: From ESN 158,976
Engine Data:

O’rings on Block

Engine Dimensions:

Bore: 3.86 in / 98 mm

Pin Ø: 1.1878 in / (+/- .0001) = 30mm

Block (m): R53260, R55035, R55351, R72970, R79280, T32346
Con Rod (m): T20007, R81410
Piston (m): T23481
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    Equipment Models

    farm tractors

    • 3420

    skidders

    • 540

    wheel loaders

    • 544
  • 1) Engine O/H Kit
    TOK6591 Click to view kit content
    CLOSE
    Item #:
    Quantity:
    Description:
    TAR67942
    1
    SEAL, CRANKSHAFT FRONT
    TAR71591
    6
    KIT, CYL 3.152/4.202/6.303
    TAT21139
    1
    BRG, MAIN THRUST STD
    TMX506
    1
    KIT, GROMMET(6)
    TR74194
    12
    CAPSCREW, CON ROD 300 SERIES
    TRE27348
    6
    BRG, CON ROD STD
    TRE27352
    6
    BRG, MAIN STD
    TRE38568
    1
    GASKET, O/H SET 6303
    TRE44574
    1
    SEAL, OIL REAR
    TT23471
    6
    BUSHING, CON ROD
    2) Engine I/F Kit
    TIK6591 Click to view kit content
    CLOSE
    Item #:
    Quantity:
    Description:
    TAR71591
    6
    KIT, CYL 3.152/4.202/6.303
    TAT21139
    1
    BRG, MAIN THRUST STD
    TR74194
    12
    CAPSCREW, CON ROD 300 SERIES
    TR97344
    1
    GASKET, OIL PAN 6 CYL,
    TRE27348
    6
    BRG, CON ROD STD
    TRE27352
    6
    BRG, MAIN STD
    TRE38571
    1
    GASKET, CYL HEAD SET 6303
    SPEC SHEET - 6.303
  • Piston-Liner Kit
    TAR71591
    Consists of:
    a) TT23481 b) TAR70633 c) TT23482 d) TT32340 e) TAR71617 f) TR51112
  • Main Bearing
    TRE27352 Std. TRE27353 0.010 TRE27360 0.020 TRE27368 0.030
    Use 6
  • Thrust Bearing
    TAT21139 Std. TAT21132 0.010 TAT21134 0.020 TAT21136 0.030
    Use 1
  • Con Rod Bearing
    TRE27348 Std. TRE27349 0.010 TRE27358 0.020 TRE27364 0.030
    Use 6
  • 1) Front Seal
    TAR67942
    2) Rear Seal
    TRE44574 (1)
    3) Crankshaft
    TAT22562
    4) Crankshaft, Gear
    TT20094
    5) Ring Gear
    TR114282 (142T)
  • 1) O/H Gasket Set
    TRE38568
    2) Head Gasket Set
    TRE38571
    3) Head Gasket
    TR98462
    4) Oil Pan Gasket
    TR97344
    5) Rocker Cover Gsk
    TR75728
  • 1) Bush, Con Rod
    TT23471 x6
    2) Bolt, Con Rod
    TR74194 x12 (2)
    3) Camshaft
    TR82821 (3)
    4) Con Rod
    TAT18005
  • 1) Pump, Oil
    TRE55343
    2) Oil Cooler
    TRE31929
    3) Rocker Arm
    TRE31973
    4) Pump, Oil Tube
    TR113752
    5) Oil Pump O'Ring
    TR61871
  • 1) Lower Gear
    TAT24252
    2) Lower Bushing
    TT26321
    3) Upper Gear
    TAT18009
    4) Upper Bushing
    TT20034
    5) Cam. Follower
    TT20073 x12
    6) Cam. Gear
    TT20070
Valve Section
  • Valve, Intake
    TR79623 Std.
    TR79628 0.003
    TR79629 0.015
  • Valve, Exhaust
    TR79624 Std.
    TR79625 0.003
    TR79626 0.015
  • 1) Insert, Valve In
    TR73064 Std.
    2) Insert, Valve Ex
    TR51734 Std.
  • 1) Cap, Valve
    TT20129
    2) Lock, Valve
    TT20077
  • 1) Spring, Valve
    TR26125
    2) Rotator, Valve
    TRE11410
    3) O'ring Valve
    TR87627
  • Thermostats
    TAR70601 180° F (4) TAR77411 195ºF (4)
  • 1) Fuel Transfer Pump
    TRE42211
    2) Fuel Pump Gasket
    TR27285
  • Water Pump Repair Kit
    Without Impeller TRE19510
    With Impeller
    TMX132
  • 1) Seal, Injector
    TR60746 TR48000
    2) Injector, Pencil
    TAR89564
    3) Kit, Grommet
    TMX506
    4) Cap
    TAT27622 TAR85618
    5) Washer
    TT29539
    6) Tube Nut
    TR51937
(1): Do not use with flywheel housing (m) T20300,T22991.
(2): Use TR74194 with C.Rod (m) T20007; use TR80033 with C.Rod (m) R81410.
(3): Threaded Type.
(4): Verify JD parts manual.
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