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8N-4920 CONVERSION AR-ENGINE NATURALLY ASPIRATED-NATURAL GAS AN ATTACHMENT G3304 GAS ENGINE


ENGINE ARRANGEMENT
CONVERSION GP-ENGINE
ENGINE AR
BASIC ENGINE
CRANKSHAFT GP
BALANCER GP

GAS ENGINE G3304 GAS ENGINE 37Y
 G3304 ENGINE 37Y00001-UP SEBP1257 G3304 37Y   (1979)

ENGINE ARRANGEMENT

CONVERSION GP-ENGINE
8N-4920 CONVERSION AR-ENGINE
158-6171 CONVERSION AR
158-6172 CONVERSION AR
 

#SEBP12570001
 

8N-4920: CONVERSION AR-ENGINE

8N-4920 CONVERSION AR-ENGINE
NATURALLY ASPIRATED-NATURAL GAS
AN ATTACHMENT
i00431222 SEBP1257
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Parts for your G3304 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  8N-5731 Y [1] AIR CLEANER GP  
  8N-5734 Y [1] CARBURETOR GP  
  8N-5737 Y [1] CONTROL GP-CARBURETOR  
  8N-2379 Y [1] DRIVE GP-GOVERNOR  
  7L-0369 Y [1] ELBOW GP-EXHAUST  
  7N-4137 Y [1] FLYWHEEL GP  
  8N-1204 Y [1] FUMES DISPOSAL GP  
    -OR-
  1N-4874 Y [1] FUMES DISPOSAL GP  
  7N-2375 Y [1] GOVERNOR GP  
  8N-5726 Y [1] IGNITION GP-GAS ENGINE  
    -OR-
  9Y-6490 Y [1] IGNITION GP-GAS ENGINE  
  7N-4312 Y [1] INDICATOR GP-TIMING  
  8N-5966 Y [1] MANIFOLD GP-EXHAUST  
    S/N 37Y1-372
  8N-6971 Y [1] MANIFOLD GP-EXHAUST  
    -OR-
  1N-4199 Y [1] MANIFOLD GP-EXHAUST  
    -OR-
  7E-1566 Y [1] MANIFOLD GP-WATER (WATER COOLED)  
  7N-9261 Y [1] METER GP-SERVICE  
  8N-5825 Y [1] PANEL GP-INSTRUMENT  
    -OR-
  7N-5903 Y [1] PANEL GP-INSTRUMENT  
  7N-1268 Y [1] SUPPORT GP-ENGINE  
    -OR-
  1W-5122 Y [1] SUPPORT GP-ENGINE  
  Y   SEPARATE ILLUSTRATION
 

#SEBP12570002
 

102-9431: ENGINE AR

102-9431 ENGINE AR
S/N 37Y2145-UP
i00467837 SEBP1257
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Parts for your G3304 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  3N-2886 Y [1] ADAPTER GP-SEAL (CRANKSHAFT)  
  5S-6425 Y [1] BALANCER GP  
  1P-4244 Y [1] BREATHER GP  
  1N-4436 Y [1] CAMSHAFT GP  
  7W-0257 Y [1] COOLER GP-FLTR BASE & ENG OIL  
  7N-1088 Y [1] COVER GP-CYLINDER BLOCK  
  7N-4314 Y [1] COVER GP-FRONT HOUSING  
  9Y-2286 Y [1] COVER GP-VALVE MECHANISM  
  6N-8080 Y [1] CRANKSHAFT GP  
  7N-8014 Y [1] CYLINDER BLOCK GP  
  7W-7504 Y [1] CYLINDER HEAD GP  
  7N-4313 Y [1] DRIVE GP-MAGNETO  
  7W-7487 Y [1] FASTENER GP-CYLINDER HEAD  
  3N-2887 Y [1] FASTENER GP-FRONT HOUSING  
  2P-6855 Y [1] FILLER GP-ENGINE OIL  
  4W-9672 Y [1] GAUGE GP-OIL LEVEL (DIPSTICK)  
  2P-9642 Y [1] GEAR GP-FRONT  
  8N-2395 Y [1] HOUSING GP-FLYWHEEL  
  8N-0303 Y [1] HOUSING GP-FRONT  
  8N-3157 Y [1] LIFTING GP-ENGINE  
  7W-0258 Y [1] LINES GP-ENGINE OIL  
  2W-6779 Y [1] LINES GP-WATER  
  4W-9626 Y [1] PAN GP-OIL  
  4P-2698 Y [4] PISTON & ROD GP  
    S/N 37Y2145-2792
  126-0185 Y [4] PISTON & ROD GP  
    S/N 37Y2793-UP
  3N-2884 Y [1] PULLEY GP-CRANKSHAFT  
  9L-5651 Y [1] PUMP GP-ENGINE OIL  
  7N-6210 Y [1] PUMP GP-WATER  
  2P-6224 Y [1] SEAL GP-CRANKSHAFT  
  3N-2883 Y [1] SUPPORT GP-ENGINE  
  7W-7486 Y [1] VALVE MECHANISM GP  
   
    AVAILABLE GASKET KIT(S):
  107-0620 [1] KIT-GASKET (CENTRAL & LOWER STRUCTURE)  
  9X-8563 [1] KIT-GASKET (FRONT STRUCTURE)(FRONT STRUCTURE)  
  9X-8566 [1] KIT-GASKET (OIL COOLER, LINES)(OIL COOLER & LINES)  
  6V-2900 [1] KIT-GASKET (REAR STRUCTURE)  
  107-0621 [1] KIT-GASKET (SINGLE CYLINDER HEAD)  
  5P-8768 [1] KIT-GASKET (SINGLE CYLINDER LINER)(SINGLE CYLINDER LINER)  
  6V-4750 [1] KIT-GASKET (WATER PUMP)(WATER PUMP)  
  R   REMANUFACTURED PART MAY BE AVAILABLE
  Y   SEPARATE ILLUSTRATION
 

#SEBP12570003
 

102-9432: ENGINE AR

102-9432 ENGINE AR
S/N 37Y2145-UP
i00467838 SEBP1257
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Parts for your G3304 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  3N-2886 Y [1] ADAPTER GP-SEAL (CRANKSHAFT)  
  5S-6425 Y [1] BALANCER GP  
  1P-4244 Y [1] BREATHER GP  
  1N-4436 Y [1] CAMSHAFT GP  
  7W-0257 Y [1] COOLER GP-FLTR BASE & ENG OIL  
  7N-1088 Y [1] COVER GP-CYLINDER BLOCK  
  7N-4314 Y [1] COVER GP-FRONT HOUSING  
  9Y-2286 Y [1] COVER GP-VALVE MECHANISM  
  6N-8080 Y [1] CRANKSHAFT GP  
  7N-8014 Y [1] CYLINDER BLOCK GP  
  7W-7504 Y [1] CYLINDER HEAD GP  
  7N-4313 Y [1] DRIVE GP-MAGNETO  
  7W-7487 Y [1] FASTENER GP-CYLINDER HEAD  
  3N-2887 Y [1] FASTENER GP-FRONT HOUSING  
  2P-6855 Y [1] FILLER GP-ENGINE OIL  
  4W-9672 Y [1] GAUGE GP-OIL LEVEL (DIPSTICK)  
  2P-9642 Y [1] GEAR GP-FRONT  
  8N-2395 Y [1] HOUSING GP-FLYWHEEL  
  8N-0303 Y [1] HOUSING GP-FRONT  
  8N-3157 Y [1] LIFTING GP-ENGINE  
  7W-0258 Y [1] LINES GP-ENGINE OIL  
  2W-6779 Y [1] LINES GP-WATER  
  4W-9626 Y [1] PAN GP-OIL  
  4P-2699 Y [1] PISTON & ROD GP  
  3N-2884 Y [1] PULLEY GP-CRANKSHAFT  
  9L-5651 Y [1] PUMP GP-ENGINE OIL  
  7N-6210 Y [1] PUMP GP-WATER  
  2P-6224 Y [1] SEAL GP-CRANKSHAFT  
  3N-2883 Y [1] SUPPORT GP-ENGINE  
  7W-7486 Y [1] VALVE MECHANISM GP  
   
    AVAILABLE GASKET KIT(S):
  107-0620 [1] KIT-GASKET (CENTRAL & LOWER STRUCTURE)  
  9X-8563 [1] KIT-GASKET (FRONT STRUCTURE)(FRONT STRUCTURE)  
  9X-8566 [1] KIT-GASKET (OIL COOLER, LINES)(OIL COOLER & LINES)  
  6V-2900 [1] KIT-GASKET (REAR STRUCTURE)  
  107-0621 [1] KIT-GASKET (SINGLE CYLINDER HEAD)  
  5P-8768 [1] KIT-GASKET (SINGLE CYLINDER LINER)(SINGLE CYLINDER LINER)  
  6V-4750 [1] KIT-GASKET (WATER PUMP)(WATER PUMP)  
  R   REMANUFACTURED PART MAY BE AVAILABLE
  Y   SEPARATE ILLUSTRATION
 

#SEBP12570004
 

8N-4921: ENGINE AR

8N-4921 ENGINE AR
S/N 37Y1-2144
i00431230 SEBP1257
  For full view, you need register

Parts for your G3304 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  3N-2886 Y [1] ADAPTER GP-SEAL (CRANKSHAFT)  
  5S-6425 Y [1] BALANCER GP  
  1P-4244 Y [1] BREATHER GP  
  2P-6201 Y [1] CAMSHAFT GP  
  2P-7738 Y [1] COOLER GP-ENGINE OIL  
    S/N 37Y1-1018
  7W-0257 Y [1] COOLER GP-FLTR BASE & ENG OIL  
    S/N 37Y1019-2144
  7N-1088 Y [1] COVER GP-CYLINDER BLOCK  
    S/N 37Y1-838;862-2144
  2W-0102 Y [1] COVER GP-CYLINDER BLOCK  
    S/N 37Y839-861
  7N-4314 Y [1] COVER GP-FRONT HOUSING  
  3N-2921 Y [1] COVER GP-VALVE MECHANISM  
    S/N 37Y1-553
  2P-6514 Y [1] COVER GP-VALVE MECHANISM  
    S/N 37Y554-861
  8N-4446 Y [1] COVER GP-VALVE MECHANISM  
    S/N 37Y862-1019
  7W-7538 Y [1] COVER GP-VALVE MECHANISM  
    S/N 37Y1020-1423
  9Y-2286 Y [1] COVER GP-VALVE MECHANISM  
    S/N 37Y1424-2144
  6N-8080 Y [1] CRANKSHAFT GP  
  7N-8014 Y [1] CYLINDER BLOCK GP  
  8N-4984 Y [1] CYLINDER HEAD GP  
    S/N 37Y1-1019
  7W-7504 Y [1] CYLINDER HEAD GP  
    S/N 37Y1020-2144
  8N-5024 Y [1] DRIVE GP-MAGNETO  
    S/N 37Y1-2112
  7N-4313 Y [1] DRIVE GP-MAGNETO  
    S/N 37Y2113-2144
  7N-9534 Y [1] FASTENER GP-CYLINDER HEAD  
    S/N 37Y1-1019
  7W-7487 Y [1] FASTENER GP-CYLINDER HEAD  
    S/N 37Y1020-2144
  3N-2887 Y [1] FASTENER GP-FRONT HOUSING  
  2P-6855 Y [1] FILLER GP-ENGINE OIL  
  2P-6475 Y [1] FILTER GP-ENGINE OIL  
    S/N 37Y1-1018
  3N-2925 Y [1] GAUGE GP-OIL LEVEL (DIPSTICK)  
    S/N 37Y1-1018
  4W-9672 Y [1] GAUGE GP-OIL LEVEL (DIPSTICK)  
    S/N 37Y1019-2144
  2P-9642 Y [1] GEAR GP-FRONT  
  8N-2395 Y [1] HOUSING GP-FLYWHEEL  
  7N-3821 Y [1] HOUSING GP-FRONT  
    S/N 37Y1-1305
  8N-0303 Y [1] HOUSING GP-FRONT  
    S/N 37Y1306-2144
  1W-5565 Y [1] LIFTING GP-ENGINE  
    S/N 37Y1-569
  8N-3157 Y [1] LIFTING GP-ENGINE  
    S/N 37Y570-2144
  2P-6512 Y [1] LINES GP-ENGINE OIL  
    S/N 37Y1-1018
  7W-0258 Y [1] LINES GP-ENGINE OIL  
    S/N 37Y1019-2144
  8N-0713 Y [1] LINES GP-WATER  
    S/N 37Y1-1018
  4W-4569 Y [1] LINES GP-WATER  
    S/N 37Y1019-1251
  2W-6779 Y [1] LINES GP-WATER  
    S/N 37Y1252-2144
  8N-8260 Y [1] LINES GP-WATER  
    S/N 37Y1-651
  2P-7728 Y [1] LINES GP-WATER  
    S/N 37Y652-1018
  3N-2924 Y [1] PAN GP-OIL  
    S/N 37Y1-1018
  4W-9626 Y [1] PAN GP-OIL  
    S/N 37Y1019-2144
  7L-0472 Y [4] PISTON & ROD GP  
    S/N 37Y1-1851
  4P-2698 Y [4] PISTON & ROD GP  
    S/N 37Y1852-2144
  3N-2884 Y [1] PULLEY GP-CRANKSHAFT  
  2P-1784 Y [1] PUMP GP-ENGINE OIL  
    S/N 37Y1-1018
  7W-4458 Y [1] PUMP GP-ENGINE OIL  
    S/N 37Y1019-1059
  9L-5651 Y [1] PUMP GP-ENGINE OIL  
    S/N 37Y1060-2144
  7N-6210 Y [1] PUMP GP-WATER  
  2P-6224 Y [1] SEAL GP-CRANKSHAFT  
  3N-2883 Y [1] SUPPORT GP-ENGINE  
  7N-8024 Y [1] VALVE MECHANISM GP  
    S/N 37Y1-872
  4W-9173 Y [1] VALVE MECHANISM GP  
    S/N 37Y873-1019
  7W-7486 Y [1] VALVE MECHANISM GP  
    S/N 37Y1020-2144
    (GASKET KITS WILL BE PROVIDED WHEN AVAILABLE)
  R   REMANUFACTURED PART MAY BE AVAILABLE
  Y   SEPARATE ILLUSTRATION
 

#SEBP12570005
 

8N-5943: ENGINE AR

8N-5943 ENGINE AR
S/N 37Y1-2053
8:1 COMPRESSION RATIO
i00412287 SEBP1257
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Parts for your G3304 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  3N-2886 Y [1] ADAPTER GP-SEAL (CRANKSHAFT)  
  5S-6425 Y [1] BALANCER GP  
  1P-4244 Y [1] BREATHER GP  
  2P-6201 Y [1] CAMSHAFT GP  
  2P-7738 Y [1] COOLER GP-ENGINE OIL  
    S/N 37Y1-1018
  7W-0257 Y [1] COOLER GP-FLTR BASE & ENG OIL  
    S/N 37Y1019-2053
  7N-1088 Y [1] COVER GP-CYLINDER BLOCK  
    S/N 37Y1-838;862-2053
  2W-0102 Y [1] COVER GP-CYLINDER BLOCK  
    S/N 37Y839-861
  7N-4314 Y [1] COVER GP-FRONT HOUSING  
  3N-2921 Y [1] COVER GP-VALVE MECHANISM  
    S/N 37Y1-553
  2P-6514 Y [1] COVER GP-VALVE MECHANISM  
    S/N 37Y554-861
  8N-4446 Y [1] COVER GP-VALVE MECHANISM  
    S/N 37Y862-1019
  7W-7538 Y [1] COVER GP-VALVE MECHANISM  
    S/N 37Y1020-1423
  9Y-2286 Y [1] COVER GP-VALVE MECHANISM  
    S/N 37Y1424-2053
  6N-8080 Y [1] CRANKSHAFT GP  
  7N-8014 Y [1] CYLINDER BLOCK GP  
  8N-4984 Y [1] CYLINDER HEAD GP  
    S/N 37Y1-1019
  7W-7504 Y [1] CYLINDER HEAD GP  
    S/N 37Y1020-2053
  8N-5024 Y [1] DRIVE GP-MAGNETO  
    S/N 37Y1-1851
  7N-4313 Y [1] DRIVE GP-MAGNETO  
    S/N 37Y1852-2053
  7N-9534 Y [1] FASTENER GP-CYLINDER HEAD  
    S/N 37Y1-1019
  7W-7487 Y [1] FASTENER GP-CYLINDER HEAD  
    S/N 37Y1020-2053
  3N-2887 Y [1] FASTENER GP-FRONT HOUSING  
  2P-6855 Y [1] FILLER GP-ENGINE OIL  
  2P-6475 Y [1] FILTER GP-ENGINE OIL  
    S/N 37Y1-1018
  3N-2925 Y [1] GAUGE GP-OIL LEVEL (DIPSTICK)  
    S/N 37Y1-1018
  4W-9672 Y [1] GAUGE GP-OIL LEVEL (DIPSTICK)  
    S/N 37Y1019-2053
  2P-9642 Y [1] GEAR GP-FRONT  
  7N-1747 Y [1] HOUSING GP-FLYWHEEL  
    S/N 37Y1-402
  8N-2395 Y [1] HOUSING GP-FLYWHEEL  
    S/N 37Y403-2053
  7N-3821 Y [1] HOUSING GP-FRONT  
    S/N 37Y1-1305
  8N-0303 Y [1] HOUSING GP-FRONT  
    S/N 37Y1306-2053
  6N-8336 Y [1] LIFTING GP-ENGINE  
    S/N 37Y1-514
  1W-5565 Y [1] LIFTING GP-ENGINE  
    S/N 37Y515-569
  8N-3157 Y [1] LIFTING GP-ENGINE  
    S/N 37Y570-2053
  2P-6512 Y [1] LINES GP-ENGINE OIL  
    S/N 37Y1-1018
  7W-0258 Y [1] LINES GP-ENGINE OIL  
    S/N 37Y1019-2053
  8N-0713 Y [1] LINES GP-WATER  
    S/N 37Y1-1018
  4W-4569 Y [1] LINES GP-WATER  
    S/N 37Y1019-1251
  2W-6779 Y [1] LINES GP-WATER  
    S/N 37Y1252-2053
  8N-8260 Y [1] LINES GP-WATER  
    S/N 37Y1-651
  2P-7728 Y [1] LINES GP-WATER  
    S/N 37Y652-1018
  3N-2924 Y [1] PAN GP-OIL  
    S/N 37Y1-1018
  4W-9626 Y [1] PAN GP-OIL  
    S/N 37Y1019-2053
  8L-4446 Y [4] PISTON & ROD GP  
    S/N 37Y1-1851
  4P-2699 Y [4] PISTON & ROD GP  
    S/N 37Y1852-2053
  3N-2884 Y [1] PULLEY GP-CRANKSHAFT  
  2P-1784 Y [1] PUMP GP-ENGINE OIL  
    S/N 37Y1-1018
  7W-4458 Y [1] PUMP GP-ENGINE OIL  
    S/N 37Y1019-1059
  9L-5651 Y [1] PUMP GP-ENGINE OIL  
    S/N 37Y1060-2053
  7N-6210 Y [1] PUMP GP-WATER  
  2P-6224 Y [1] SEAL GP-CRANKSHAFT  
  3N-2883 Y [1] SUPPORT GP-ENGINE  
  7N-8024 Y [1] VALVE MECHANISM GP  
    S/N 37Y1-787;790-791;793;795;797;799;801;803-805;807;809;811;813;815;817;819;821;823;825;827;829;831;849-850;852-875
  4W-9173 Y [1] VALVE MECHANISM GP  
    S/N 37Y788-789;792;794;796;798;800;802;806;808;810;812;814;816;818;820;822;824;826;828;830;832-848;851;876-1019
  7W-7486 Y [1] VALVE MECHANISM GP  
    S/N 37Y1020-2053
    (GASKET KITS WILL BE PROVIDED WHEN AVAILABLE)
  R   REMANUFACTURED PART MAY BE AVAILABLE
  Y   SEPARATE ILLUSTRATION
 

#SEBP12570006
 

3N-2886: ADAPTER GP-SEAL

3N-2886 ADAPTER GP-SEAL -CRANKSHAFT
S/N 37Y1-543
FRONT
i00366142 SEBP1257
3N2886 ADAPTER GP-SEAL Parts scheme
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Parts for your G3304 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3N-1463 [1] ADAPTER-SEAL  
2. 2P-1692 [1] SEAL-O-RING  
 

#SEBP12570007
 

3N-2886: ADAPTER GP-SEAL

3N-2886 ADAPTER GP-SEAL -CRANKSHAFT
S/N 37Y544-814
FRONT
i00366144 SEBP1257
3N2886 ADAPTER GP-SEAL Parts scheme
  For full view, you need register

Parts for your G3304 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 1W-4506 C [1] ADAPTER-SEAL  
2. 2P-1692 [1] SEAL-O-RING  
  C   CHANGE FROM PREVIOUS TYPE
 

#SEBP12570008
 

3N-2886: ADAPTER GP-SEAL

3N-2886 ADAPTER GP-SEAL -CRANKSHAFT
S/N 37Y815-UP
FRONT
i00122066 SEBP1257
3N2886 ADAPTER GP-SEAL Parts scheme
  For full view, you need register

Parts for your G3304 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 1W-4506 [1] ADAPTER-SEAL  
2. 2P-1692 [1] SEAL-O-RING  
3. 2W-9062 C [1] RETAINER AS  
4. 0L-1329 C [2] BOLT (1/2-13X3-IN)  
5. 5P-8245 C [2] WASHER-HARD (13.5X25.5X3-MM THK)  
  C   CHANGE FROM PREVIOUS TYPE
 

#SEBP12570009
 

5S-6425: BALANCER GP

5S-6425 BALANCER GP
i00146032 SEBP1257
5S6425 BALANCER GP Parts scheme
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Parts for your G3304 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 5M-2894 C [4] WASHER-HARD (10.2X18.5X2.5-MM THK)  
2. 4S-6417 [2] PLATE-THRUST  
3. 4N-7977 C [1] SHAFT AS-BALANCE (20-TEETH)(RH)  
  1P-1721 [1] GEAR-BALANCE (20-TEETH)  
  4H-9699 [1] KEY-WOODRUFF  
  4N-7978 [1] SHAFT AS-BALANCE (20-TEETH)(LH)  
  1P-1722 [1] GEAR-BALANCE (20-TEETH)  
  4H-9699 [1] KEY-WOODRUFF  
4. 0S-1594 [4] BOLT (3/8-16X1-IN)  
  1N-8354 [2] LOCK  
    -OR-
  030-8535 C [4] BOLT-LOCKING (3/8-16X0.875-IN)  
  C   CHANGE FROM PREVIOUS TYPE
 

Information:

Caterpillar Parts SIS Catalog G3304 :

102-9431 ENGINE AR
102-9432 ENGINE AR
8N-4921 ENGINE AR
8N-5943 ENGINE AR
ADAPTER GP-SEAL
3N-2886 ADAPTER GP-SEAL
ADAPTER GP-SEAL
3N-2886 ADAPTER GP-SEAL
ADAPTER GP-SEAL
3N-2886 ADAPTER GP-SEAL
BALANCER GP
5S-6425 BALANCER GP

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