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4N-1733 PAN GP-OIL -ENGINE 3408B MARINE ENGINE


BASIC ENGINE
PAN GP-OIL
PISTON & ROD GP
PULLEY GP
VALVE MECHANISM GP
CRANKSHAFT GP
MOUNTING GP-ENGINE
VALVE MECHANISM GP
LUBRICATION SYSTEM
BREATHER GP
PUMP GP-ENGINE OIL

MARINE ENGINE 3408B MARINE ENGINE 8RG
 3408B High Performance Marine Engine 8RG00001-00107 SEBP2025 3408B 8RG   (1992)

BASIC ENGINE

PAN GP-OIL
COVER GP-OIL PAN
6I-1813 COVER GP-OIL PAN
PAN GP-OIL
4N-1733 PAN GP-OIL
 

#SEBP20250040
 

4N-1733: PAN GP-OIL

4N-1733 PAN GP-OIL -ENGINE
i00107914 SEBP2025
4N1733 PAN GP-OIL Parts scheme
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Parts for your 3408B MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8N-4595 C [1] PAN-OIL  
2. 2P-3203 C [32] BOLT-WASHER HEAD (3/8-16X1.25-IN)  
3. 4N-1151 C [1] GASKET  
4. 8T-6761 C [1] PLUG-PIPE (1-11-1/2 NPT THD)(OIL PAN DRAIN)  
5. 8T-6761 BC [2] PLUG-PIPE (1-11-1/2 NPT THD)(OIL PAN DRAIN)  
  B   USE AS REQUIRED
  C   CHANGE FROM PREVIOUS TYPE
 

#SEBP20250041
 

4P-7472: PISTON & ROD GP

4P-7472 PISTON & ROD GP
14.1:1 RATIO
i00385232 SEBP2025
4P7472 PISTON & ROD GP Parts scheme
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Parts for your 3408B MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 112-2876 N [1] BODY AS-PISTON  
2. 8N-1608 [1] PIN-PISTON  
3. 7E-5665 N [2] RETAINER-PIN  
4. 8N-1728 [1] ROD AS-CONNECTING  
4A. 4P-8495 N [1] BUSHING  
4B. 8L-3441 [2] NUT (9/16-18-THD)  
4C. 6N-8942 [2] BOLT-CONNECTING ROD  
5. 9Y-9497 H [1] BEARING-CONNECTING ROD (STANDARD)  
  4W-5702 ABJ BEARING-CONNECTING ROD (0.635-MM US)  
  4W-5703 ABL BEARING-CONNECTING ROD (1.27-MM US)  
6. 1W-9460 N [1] RING-PISTON (TOP)  
7. 2P-2817 N [1] RING-PISTON (INTERMEDIATE)  
8. 7N-7078 N [1] RING-PISTON (OIL CONTROL)  
9. 168-4538 [1] JET AS-PISTON COOLING  
10. 150-1156 [1] BOLT-SPECIAL (OIL JET)  
   
    AVAILABLE REPAIR KIT(S):
  9Y-6188 ABHPS KIT-ROD BEARING (STANDARD)  
  9Y-6189 ABJPS KIT-ROD BEARING (0.635-MM US)  
  9Y-6190 ABLPS KIT-ROD BEARING (1.27-MM US)  
  442-5354 ABN [1] KIT-CYLINDER PACK  
    (INCLUDES RINGS, BUSHING, PISTON BODY ASSEMBLY, RETAINER, LINER, SINGLE CYLINDER LINER GASKET KIT)
  A   NOT PART OF THIS GROUP
  B   USE AS REQUIRED
  H   KIT MARKED H INCLUDES SIX OF PART MARKED H
  J   KIT MARKED J INCLUDES SIX OF PART MARKED J
  L   KIT MARKED L INCLUDES SIX OF PART MARKED L
  N   KIT MARKED N SERVICES PART(S) MARKED N
  P   QTY OF 2 KITS REQUIRED FOR 3412 ENGINE
  R   REMANUFACTURED PART MAY BE AVAILABLE
  S   NOT FOR USE WITH 3408
 

#SEBP20250042
 

6N-4581: PULLEY GP-CRANKSHAFT

6N-4581 PULLEY GP-CRANKSHAFT
CANNOT BE USED WITH FRONT ENCLOSED CLUTCH
AN ATTACHMENT
i00974059 SEBP2025
6N4581 PULLEY GP-CRANKSHAFT Parts scheme
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Parts for your 3408B MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 6N-4580 [1] PULLEY (2-GROOVE)  
2. 0L-1351 [8] BOLT (3/8-16X0.875-IN)  
 

#SEBP20250043
 

4N-1718: ROCKER ARM GP

4N-1718 ROCKER ARM GP
PART OF 4N-4298 VALVE MECHANISM GP
i00107912 SEBP2025
4N1718 ROCKER ARM GP Parts scheme
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Parts for your 3408B MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 006-7403 [2] RING-RETAINING  
2. 2N-7228 [4] WASHER (1X1.5X0.03-IN THK)  
3. 4N-0955 [2] DOWEL  
4. 2N-7229 [3] SPRING  
5. 4N-1106 [1] SHAFT AS-ROCKER ARM  
6. 0L-1022 [2] PLUG-CUP  
7. 9Y-4384 C [3] BRACKET-SHAFT  
8. 4N-5614 [8] ROCKER ARM AS  
9. 336-6781 [8] SCREW (3/8-24X4.78-IN)  
10. 9L-7712 [8] NUT (3/8-24-THD)  
11. 9Y-4385 C [1] BRACKET AS  
  2D-6642 [1] BALL (6.35-MM DIA)  
12. 4B-9880 [1] BALL (7.93-MM DIA)  
  C   CHANGE FROM PREVIOUS TYPE
  R   REMANUFACTURED PART MAY BE AVAILABLE
 

#SEBP20250044
 

319-0785: SEAL GP-CRANKSHAFT

319-0785 SEAL GP-CRANKSHAFT -REAR
PART OF 1W-5010 CRANKSHAFT GP
FOR USE WITH CCW ROTATION
i02958100 SEBP2025
3190785 SEAL GP-CRANKSHAFT Parts scheme
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Parts for your 3408B MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 142-5868 J [1] SEAL-CRANKSHAFT (REAR)  
   
    CRANKSHAFT SEAL 366-6004 IS AVAILABLE FOR FLOODED CONDITIONS
  J   FOR USE WITH DRY CLUTCH APPLICATIONS
 

#SEBP20250045
 

319-7401: SEAL GP-CRANKSHAFT

319-7401 SEAL GP-CRANKSHAFT -FRONT
PART OF 1W-5010 CRANKSHAFT GP
FOR USE WITH CW ROTATION
i02957871 SEBP2025
3197401 SEAL GP-CRANKSHAFT Parts scheme
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Parts for your 3408B MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 142-5867 [1] SEAL-CRANKSHAFT (FRONT)  
 

#SEBP20250046
 

7E-0128: SUPPORT GP-ENGINE

7E-0128 SUPPORT GP-ENGINE
i00395843 SEBP2025
7E0128 SUPPORT GP-ENGINE Parts scheme
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Parts for your 3408B MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7E-0115 [1] SUPPORT AS  
2. 1D-4569 [8] BOLT (1/2-13X4.25-IN)  
  2M-0849 [8] WASHER-HARD (13.5X25.5X5-MM THK)  
3. 8T-4162 [2] SETSCREW (3/4-10X4.5-IN)  
4. 2J-3506 [2] NUT-FULL (3/4-10-THD)  
 

#SEBP20250047
 

4N-4298: VALVE MECHANISM GP

4N-4298 VALVE MECHANISM GP
i00107923 SEBP2025
4N4298 VALVE MECHANISM GP Parts scheme
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Parts for your 3408B MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4N-1718 Y [2] ROCKER ARM GP  
2. 4N-5611 [8] BRIDGE AS-EXHAUST  
    (EACH INCLUDES)
3. 2N-5842 [1] SCREW (3/8-24X1-IN)  
  9L-7712 [1] NUT (3/8-24-THD)  
4. 2P-9845 [8] BOLT (3/4-16X11.5-IN)  
  5H-1504 [8] WASHER-HARD (20X33.5X5-MM THK)  
5. 4W-5998 [16] PUSHROD AS  
6. 6N-6872 [16] SPRING-GUIDE  
7. 101-7788 [16] LIFTER AS-VALVE  
8. 4N-5612 [8] BRIDGE AS-VALVE  
    (EACH INCLUDES)
9. 2N-5842 [1] SCREW (3/8-24X1-IN)  
  9L-7712 [1] NUT (3/8-24-THD)  
  R   REMANUFACTURED PART MAY BE AVAILABLE
  Y   SEPARATE ILLUSTRATION
 

#SEBP20250048
 

9Y-2989: BREATHER GP

9Y-2989 BREATHER GP -CRANKCASE
FOR USE WITH OPEN FUMES DISPOSAL
i00108458 SEBP2025
9Y2989 BREATHER GP Parts scheme
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Parts for your 3408B MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2N-8109 [1] CLAMP  
2. 6V-3831 [1] SEAL-O-RING  
3. 4N-4668 [1] BREATHER AS (CRANKCASE)  
 

#SEBP20250049
 

4N-2481: FASTENER GP-OIL PUMP MOUNTING

4N-2481 FASTENER GP-OIL PUMP MOUNTING -ENGINE
i00090164 SEBP2025
4N2481 FASTENER GP-OIL PUMP MOUNTING Parts scheme
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Parts for your 3408B MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 0L-1143 [2] BOLT (3/8-16X2.5-IN)  
2. 0S-1590 [1] BOLT (3/8-16X2-IN)  
3. 5M-2894 [3] WASHER-HARD (10.2X18.5X2.5-MM THK)  
 

Information:

Specifications
Engine Oil Pan
3408C, 3412C and 3412D High Performance Marine Engines
Disassembly and Assembly
Oil Pan
3408 & 3412 HIGH PERFORMANCE MARINE ENGINES
Service Magazine
New Indicator Instrument Group Available To Measure Crankcase Blowby And Radiator Air Velocity{0781,1200,1350}
1986/10/27

Caterpillar Parts SIS Catalog 3408B :

MOUNTING GP-ALTERNATOR
6I-1866 MOUNTING GP-ALTERNATOR
LIFTING GP-ENGINE
7E-1123 LIFTING GP-ENGINE
HOUSING GP-FRONT
101-9535 HOUSING GP-FRONT
HOUSING GP-FLYWHEEL
6I-0392 HOUSING GP-FLYWHEEL
GUARD GP-DAMPER
7E-3098 GUARD GP-DAMPER
GUARD GP-BELT
6I-1846 GUARD GP-BELT
GEAR GP-REAR
4N-3825 GEAR GP-REAR
GEAR GP-FRONT
7N-2840 GEAR GP-FRONT
PISTON & ROD GP
4P-7472 PISTON & ROD GP
PULLEY GP-CRANKSHAFT
6N-4581 PULLEY GP-CRANKSHAFT
ROCKER ARM GP
4N-1718 ROCKER ARM GP
SEAL GP-CRANKSHAFT
319-0785 SEAL GP-CRANKSHAFT
SEAL GP-CRANKSHAFT
319-7401 SEAL GP-CRANKSHAFT
SUPPORT GP-ENGINE
7E-0128 SUPPORT GP-ENGINE
VALVE MECHANISM GP
4N-4298 VALVE MECHANISM GP
BREATHER GP
9Y-2989 BREATHER GP

Truck sale:

1986 CAT 3408B
USD $34,000 
1986 CAT 3408B

Empire Power Systems
PHOENIX, Arizona
CAT 3408B
USD $9,228 
CAT 3408B

The Dutch Engine and Pump Company BV
Ridderkerk, The Netherlands
CAT 3408B
Call 
CAT 3408B

Coastal Power & Equipment
Texas
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