3706344 ORIFICE AS Caterpillar parts
621F, 621G, 623G, 627G, 651E, 657E, 657G, 769C, 769D, 770, 771C, 771D, 772, 773B, 773D, 773E, 775B, 775D, 775E, 776D, 777D, 784B, 784C, 785B, 785C, 785D, 789B, 789C, 789D, 793B, AD45B, AD55, D400E II
Rating:
Alternative (cross code) number:
CA3706344
370-6344
3706344
CA3706344
370-6344
3706344
Weight: 0.01 pounds 0 kg.
ARTICULATED TRUCK, WHEEL TRACTOR,
Compatible equipment models: 3706344:
Number on catalog scheme:
12
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Information:
In any exchange of rebuilt water pumps, keep the "TRB" pumps separate from the "pinned" pumps. See the topic "Pump Identification and Application".Pump Identification And Application
Tapered Roller Bearing (TRB) Pumps: The 2W1223 and 1W6446 Water Pump groups have tapered roller bearings, and use the 6V6896 Rebuild Kit. Installation of the kit (which has the new 2W712 Seal Assembly) and the new impeller (or the addition of two holes to the existing impeller) will make the 1W6446 Pump basically the same as the 2W1223 Pump. For reconditioning, use the procedure given in the second reference article.
Identification of the TRB pumps can be made by the nut on the end of the shaft, and the part number "1W5644" on the housing as shown in the illustration. Also, the TRB pumps do not have the retainer with six socket-head bolts on the end of the housing. Use these pumps as a direct replacement for all earlier pumps in all engine applications.
"Pinned" Ball Bearing Pumps: The 1W2929 Water Pump Group has ball bearings, with a pin lock to hold the rear bearing race (pinned) to the housing. For reconditioning, use the 6V6895 Rebuild Kit (which has the new 2W712 Seal Assembly), add holes to the impeller, and follow the procedure given in the Service Manual. These pumps are no longer available.
Identification of the "pinned" bearing pumps can be made by the nut on the end of the shaft, the part number "8N5796" on the housing, and the retainer with six socket-head bolts on the end of the housing.
Both "TRB" and "pinned" bearing pumps have the nut on the end of the shaft, but earlier "non-pinned" ball bearing pumps do not.Rebuilt pumps with "pinned" bearings can be used for service replacement on 3204 Engines in applications where the fan is not installed on the pump, and will give acceptable service life. In applications where the fan is installed directly on the pump, the recommendation is to use only the "TRB" pumps for maximum service life.
"Non-Pinned" Ball Bearing Pumps: Earlier ball bearing pumps did not have a pin lock to hold the bearing race (non-pinned). These pumps are no longer available, and no rebuild kit is available for reconditioning.
Identification of these earlier pumps can be made by the bolt used in the end of the shaft. This bolt has a twelve-point head. See the illustration.
Comparison of water pump designs for 3204 Engines.
Tapered Roller Bearing (TRB) Pumps: The 2W1223 and 1W6446 Water Pump groups have tapered roller bearings, and use the 6V6896 Rebuild Kit. Installation of the kit (which has the new 2W712 Seal Assembly) and the new impeller (or the addition of two holes to the existing impeller) will make the 1W6446 Pump basically the same as the 2W1223 Pump. For reconditioning, use the procedure given in the second reference article.
Identification of the TRB pumps can be made by the nut on the end of the shaft, and the part number "1W5644" on the housing as shown in the illustration. Also, the TRB pumps do not have the retainer with six socket-head bolts on the end of the housing. Use these pumps as a direct replacement for all earlier pumps in all engine applications.
"Pinned" Ball Bearing Pumps: The 1W2929 Water Pump Group has ball bearings, with a pin lock to hold the rear bearing race (pinned) to the housing. For reconditioning, use the 6V6895 Rebuild Kit (which has the new 2W712 Seal Assembly), add holes to the impeller, and follow the procedure given in the Service Manual. These pumps are no longer available.
Identification of the "pinned" bearing pumps can be made by the nut on the end of the shaft, the part number "8N5796" on the housing, and the retainer with six socket-head bolts on the end of the housing.
Both "TRB" and "pinned" bearing pumps have the nut on the end of the shaft, but earlier "non-pinned" ball bearing pumps do not.Rebuilt pumps with "pinned" bearings can be used for service replacement on 3204 Engines in applications where the fan is not installed on the pump, and will give acceptable service life. In applications where the fan is installed directly on the pump, the recommendation is to use only the "TRB" pumps for maximum service life.
"Non-Pinned" Ball Bearing Pumps: Earlier ball bearing pumps did not have a pin lock to hold the bearing race (non-pinned). These pumps are no longer available, and no rebuild kit is available for reconditioning.
Identification of these earlier pumps can be made by the bolt used in the end of the shaft. This bolt has a twelve-point head. See the illustration.
Comparison of water pump designs for 3204 Engines.
Cat SIS web machinery list:
Parts orifice Caterpillar catalog:
30/30, 621E, 621F, 621G, 623E, 623F, 623G, 627E, 627F, 627G, 631E, 637E, 65, 651E, 657E, 657G, 65C, 65E, 69D, 735, 740, 75C, 75D, 75E, 768C, 769C, 771C, 772B, 773B, 775B, 776, 776C, 776D, 777, 777B, 7...
8J6787
ORIFICE
834B, 988B, 988F, 988F II, 992C, 992D, AD40, AD45, AD45B, AD55, AD55B, AE40, R1700G, R2900, R2900G, R3000H
834B, 988B, 988F, 988F II, 992C, 992D, AD40, AD45, AD45B, AD55, AD55B, AE40, R1700G, R2900, R2900G, R3000H
7T1646
ORIFICE
789, 789B, 789C, 789D, 994
789, 789B, 789C, 789D, 994
776C, 776D, 777B, 777D, 777F, 854G, 854K, 992G, 992K, 993K
9T4027
ORIFICE
789, 789B, 789C, 789D, 793, 793B, 793C, 793D, 793F, 793F AC, 793F CMD, 793F OEM, 793F-XQ, 795F AC, 795F XQ, 797, 797B, 797F
789, 789B, 789C, 789D, 793, 793B, 793C, 793D, 793F, 793F AC, 793F CMD, 793F OEM, 793F-XQ, 795F AC, 795F XQ, 797, 797B, 797F
9T4026
ORIFICE
789, 789B, 789C, 789D, 793, 793B, 793C, 793D, 793F, 793F AC, 793F CMD, 793F OEM, 793F-XQ, 795F AC, 795F XQ, 797, 797B, 797F
789, 789B, 789C, 789D, 793, 793B, 793C, 793D, 793F, 793F AC, 793F CMD, 793F OEM, 793F-XQ, 795F AC, 795F XQ, 797, 797B, 797F
9T4029
ORIFICE
789, 789B, 789C, 789D, 793, 793B, 793C, 793D, 793F, 793F AC, 793F CMD, 793F OEM, 793F-XQ
789, 789B, 789C, 789D, 793, 793B, 793C, 793D, 793F, 793F AC, 793F CMD, 793F OEM, 793F-XQ
9T4030
ORIFICE
789, 789B, 789C, 789D, 793, 793B, 793C, 793D, 793F, 793F AC, 793F CMD, 793F OEM, 793F-XQ
789, 789B, 789C, 789D, 793, 793B, 793C, 793D, 793F, 793F AC, 793F CMD, 793F OEM, 793F-XQ
9T7316
ORIFICE
789, 789B, 789C, 789D, 793, 793B, 793C, 793D, 793F, 793F AC, 793F CMD, 793F OEM, 793F-XQ
789, 789B, 789C, 789D, 793, 793B, 793C, 793D, 793F, 793F AC, 793F CMD, 793F OEM, 793F-XQ
5110B, 784C, 785C, 785D, 789C, 789D, 793C, 793D, 793F, 793F AC, 793F CMD, 793F OEM, 793F-XQ, 795F AC, 795F XQ
9J4854
ORIFICE
769C, 769D, 771C, 771D, 772B, 773B, 773D, 775B, 775D, 776C, 776D, 777, 777B, 777D
769C, 769D, 771C, 771D, 772B, 773B, 773D, 775B, 775D, 776C, 776D, 777, 777B, 777D
6T1739
ORIFICE
784B, 784C, 785, 785B, 785C, 785D
784B, 784C, 785, 785B, 785C, 785D
1248202
ORIFICE
D6R
D6R
8F4529
ORIFICE
977D
977D
3T7726
ORIFICE
613C, 615, 615C, 926, 950B, 966D, 980C, D4H, G936, IT28
613C, 615, 615C, 926, 950B, 966D, 980C, D4H, G936, IT28
910, 916, 931C, D10N, D3C, D5H, D6H, D8L
8G7706
ORIFICE
943
943
8P7949
ORIFICE
931, D10
931, D10
1261640
ORIFICE
914G, IT14G, IT14G2
914G, IT14G, IT14G2
1190963
ORIFICE
554, 621F, 621G, 627F, 627G, 631G, 637G, CW-14, HA771, HA871, PF-290B, PS-150B, PS-150C, PS-200B, PS-360B, PS-360C, TK371, TK381
554, 621F, 621G, 627F, 627G, 631G, 637G, CW-14, HA771, HA871, PF-290B, PS-150B, PS-150C, PS-200B, PS-360B, PS-360C, TK371, TK381
9P6587
ORIFICE
627B, 627E, 627F, 627G, 627H, 627K, 627K LRC
627B, 627E, 627F, 627G, 627H, 627K, 627K LRC
2D8935
ORIFICE
621, 621B, 621R, 623, 627, 627B, 631C, 631E, 631G, 633E II, 637, 637D, 637E, 637G, 641, 641B, 650B, 651, 651E, 657, 657B, 657E, 666, 666B, 924K, 930K, 938K
621, 621B, 621R, 623, 627, 627B, 631C, 631E, 631G, 633E II, 637, 637D, 637E, 637G, 641, 641B, 650B, 651, 651E, 657, 657B, 657E, 666, 666B, 924K, 930K, 938K
3706346
ORIFICE AS
621F, 621G, 623G, 627G, 631E, 631G, 633E II, 637E, 637G, 651E, 657E, 657G, 770, 772, 773B, 773D, 773E, 775B, 775D, 775E, 784B, 784C, 785B, 785C, 785D, 789B, 789C, 789D, 793B, 793D
621F, 621G, 623G, 627G, 631E, 631G, 633E II, 637E, 637G, 651E, 657E, 657G, 770, 772, 773B, 773D, 773E, 775B, 775D, 775E, 784B, 784C, 785B, 785C, 785D, 789B, 789C, 789D, 793B, 793D
3706345
ORIFICE AS
621F, 621G, 623G, 627G, 631E, 631G, 633E II, 637E, 637G, 651E, 657E, 657G, 769C, 769D, 770, 771C, 771D, 772, 773B, 773D, 773E, 775B, 775D, 775E, 776D, 777D, 784B, 784C, 785B, 785C, 785D, 789B, 789C, 7...
621F, 621G, 623G, 627G, 631E, 631G, 633E II, 637E, 637G, 651E, 657E, 657G, 769C, 769D, 770, 771C, 771D, 772, 773B, 773D, 773E, 775B, 775D, 775E, 776D, 777D, 784B, 784C, 785B, 785C, 785D, 789B, 789C, 7...