MAXIFORCE CATALOG FOR John Deere ENGINE REPLACEMENT PARTS

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John Deere 6.303 O'rings on Block


300
Series
Engine & Equipment Model
6.303
From ESN 158,976

O'rings on Block

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

Applications

AGRICULTURAL
3420
CONSTRUCTION
540
544
1)
Engine O/H Kit
TOK6591
(Click for Kit Contents)

TOK6591 [X]

Item N° 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 for Kit Contents)

TIK6591 [X]

Item N° 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
Piston-Liner Kit
Consists of:
a)
c)
d)
f)
Main Bearing
Std.
0.010
0.020
0.030
Use 6
Thrust Bearing
Std.
0.010
0.020
0.030
Use 1
Con Rod Bearing
Std.
0.010
0.020
0.030
Use 6
1)
Front Seal
2)
Rear Seal
(1)
3)
Crankshaft
4)
Crankshaft, Gear
5)
Ring Gear
(142T)
1)
O/H Gasket Set
2)
Head Gasket Set
3)
Head Gasket
4)
Oil Pan Gasket
5)
Rocker Cover Gsk
1)
Bush, Con Rod
x6
2)
Bolt, Con Rod
x12
(2)
3)
Camshaft
(3)
4)
Con Rod
1)
Pump, Oil
2)
Oil Cooler
3)
Rocker Arm
4)
Rocker Shaft
5)
Pump, Oil Tube
6)
Oil Pump O'Ring
1)
Lower Gear
2)
Lower Bushing
3)
Upper Gear
4)
Upper Bushing
5)
Cam. Follower
x12
6)
Cam. Gear

Valve Section

(Click image to zoom the valve diagram.)

Valve, Intake
Std.
0.003
0.015
Valve, Exhaust
Std.
0.003
0.015
1)
Insert, Valve In
Std.
2)
Insert, Valve Ex
Std.
1)
Cap, Valve
2)
Lock, Valve
1)
Spring, Valve
2)
Rotator, Valve
3)
O'ring Valve
Thermostats
180° F
(*)
195ºF
(*)
1)
Fuel Transfer Pump
2)
Fuel Pump Gasket
Water Pump Repair Kit
Without Impeller
With Impeller
1)
Seal, Injector
2)
Injector, Pencil
3)
Kit, Grommet
4)
Cap
5)
Washer
6)
Tube Nut

(*) Verify JD parts manual.

(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.