1730663 PUMP GP-MAIN HYDRAULIC Caterpillar parts
312C, 312C L
Rating:
Alternative (cross code) number:
CA1730663
173-0663
1730663
CA1730663
173-0663
1730663
Weight: 308 pounds 139 kg.
EXCAVATOR,
Related part:
1730663
PUMP GP-HYD
10R3678
R
You can buy:
US$1,879.99
29 Sep 2025
FridayParts
US$7,280.07
28 May 2025
FridayParts
Compare Prices: .
As an associate, we earn commssions on qualifying purchases through the links below
Hydraulic Pump 173-0663 Rebuild Kit for Caterpillar CAT 312C 312C L Excavator 3064 3054T Engine
weiwie Part Number:173-0663 || Application:For Caterpillar CAT 312C 312C L Excavator 3064 3054T Engine
weiwie Part Number:173-0663 || Application:For Caterpillar CAT 312C 312C L Excavator 3064 3054T Engine
Hydraulic Pump 173-0663 Rebuild Kit for Caterpillar CAT 312C 312C L Excavator 3064 3054T Engine
BOSPOTCH Part Number:173-0663 || Application:for Caterpillar CAT 312C 312C L Excavator 3064 3054T Engine
BOSPOTCH Part Number:173-0663 || Application:for Caterpillar CAT 312C 312C L Excavator 3064 3054T Engine
This part in 4 request:
Show.
This information for suppliers only!
2023-07-20
2019-10-25
2017-05-18
2016-06-20
Information:
Sudden movement of the machine or the release of oil under pressure can cause personal injury. At operating temperature, the hydraulic oil is hot and under pressure. Hot oil can cause burns. To prevent possible personal injury, release the pressure in all of the implement circuits before any hydraulic lines or components are disconnected or removed.
1. Release the pressure in the hydraulic system as follows:a. Move the machine to a smooth horizontal location. Move away from working machines and personnel.b. Permit only one operator on the machine. Keep all other personnel either away from the machine or in view of the operator.c. Move the switch for the CUSHION-HITCH to the "LOCKDOWN" position. Be sure the rear bracket assembly of the hitch is down against (resting on) the front hitch assembly.d. Activate the parking and secondary brakes. Lower the bowl to the ground. Lower the apron. Stop the engine.e. Move all scraper control levers to all positions to release the pressure in the hydraulic system.f. Carefully loosen the fill cap on the hydraulic oil tank to release the pressure in the tank.g. Be sure all hydraulic pressure is released before any fittings, hoses or components are loosened, tightened, removed or adjusted. Wait at least five minutes after the machine is turned off. 2. Disconnect four hose assemblies (1) from the blocker valve.3. Remove two bolts (2), the washers and blocker valve (3) from the elevator hydraulic pump.4. Remove the seal used between the blocker valve and the elevator hydraulic pump. The following steps are for the installation of the blocker valve.5. Check the condition of the O-ring seals and seal used for the installation of the blocker valve. If any of the seals are damaged, use new parts for replacement.6. Install blocker valve (3) in the reverse order of removal.7. Check the oil level in the hydraulic oil tank. If necessary, fill the hydraulic oil tank with oil to the correct level. For the correct filling procedure, see the Operation & Maintenance Manual for 623F Elevating Wheel Tractor-Scrapers, SEBU6720.Disassemble & Assemble Blocker Valve
Start By:a. remove blocker valve1. Be sure the blocker valve is thoroughly clean prior to disassembly.
There is spring force behind plug (1). When plug (1) is removed, the spring force will be released. To prevent possible personal injury, retain plug (1) while it is slowly being loosened.
2. Note the position of the fitting in plug (1). Remove the fitting from the plug. While retaining plug (1), slowly loosen it to release the spring force behind it. Remove plug (1) and spring (3) from the valve body. Remove O-ring seal (2) from the plug. 3. Turn the valve body around. Note the position of the fitting in plug (4). Remove the fitting from the plug. Remove plug (4) and stem (6) from the valve body. Remove O-ring seal (5) from the plug. Remove O-ring seal (7) from the valve body. The following steps are for the assembly of the blocker valve.4. Be sure all parts of the blocker
Caterpillar SIS machinery equipment:
Caterpillar SIS
312C & 312C L Excavators CBA00001-01200 (MACHINE) »
173-0663
PUMP GP-MAIN HYDRAULIC
312C & 312C L Excavators CBA00001-01200 (MACHINE) »
173-0663
PUMP GP-MAIN HYDRAULIC
312C & 312C L Excavators BNN00001-UP (MACHINE) POWERED BY 3054T Engine »
173-0663
PUMP GP-MAIN HYDRAULIC
312C & 312C L Excavators BNN00001-UP (MACHINE) POWERED BY 3054T Engine »
173-0663
PUMP GP-MAIN HYDRAULIC
312C & 312C L Excavators CBA01201-UP (MACHINE) POWERED BY 3064 Engine »
173-0663
PUMP GP-MAIN HYDRAULIC
312C & 312C L Excavators CBA01201-UP (MACHINE) POWERED BY 3064 Engine »
173-0663
PUMP GP-MAIN HYDRAULIC
312C & 312C L Excavators CBA01201-UP (MACHINE) POWERED BY 3064 Engine »
173-0663
PUMP GP-MAIN HYDRAULIC
312C & 312C L Excavators CBA01201-UP (MACHINE) POWERED BY 3064 Engine »
173-0663
PUMP GP-MAIN HYDRAULIC
312C & 312C L Excavators BWH00001-UP (MACHINE) POWERED BY 3064 Engine »
173-0663
PUMP GP-MAIN HYDRAULIC
312C & 312C L Excavators BWH00001-UP (MACHINE) POWERED BY 3064 Engine »
173-0663
PUMP GP-MAIN HYDRAULIC
Caterpillar parts catalog:
Parts pump Caterpillar catalog:
2552969
PUMP GP-FUEL PRIMING
311C, 312C, 312C L, 314C, 318C, 319C, 320C, 320C FM, 320C L, 320D, 320D LRR, 321C, 323D L, 323D LN
311C, 312C, 312C L, 314C, 318C, 319C, 320C, 320C FM, 320C L, 320D, 320D LRR, 321C, 323D L, 323D LN
1786633
PUMP GP-WATER
311C, 311D LRR, 312C, 312C L, 312D, 312D L, 313D, 314C, 314D CR, 314D LCR, 315D L, 318C, 318D L, 319C, 319D, 319D L, 319D LN, 320C, 320C FM, 320C L, 320D, 320D FM, 320D FM RR, 320D GC, 320D L, 320D LN...
311C, 311D LRR, 312C, 312C L, 312D, 312D L, 313D, 314C, 314D CR, 314D LCR, 315D L, 318C, 318D L, 319C, 319D, 319D L, 319D LN, 320C, 320C FM, 320C L, 320D, 320D FM, 320D FM RR, 320D GC, 320D L, 320D LN...
1838098
PUMP & MTG GP-BLADE
312C L
312C L
1375541
PUMP GP-FUEL PRIMING
120G, 12G, 130G, 140G, 140H, 143H, 14G, 14H, 160G, 160H, 163H, 1673C, 16H, 235B, 24H, 3116, 311C, 311D LRR, 3126, 3126B, 3126E, 312C, 312C L, 312D, 312D L, 313D, 314C, 314D CR, 314D LCR, 315C, 315D L,...
120G, 12G, 130G, 140G, 140H, 143H, 14G, 14H, 160G, 160H, 163H, 1673C, 16H, 235B, 24H, 3116, 311C, 311D LRR, 3126, 3126B, 3126E, 312C, 312C L, 312D, 312D L, 313D, 314C, 314D CR, 314D LCR, 315C, 315D L,...
7T8890
PUMP AS WASHER
120M, 120M 2, 12M, 140M, 140M 2, 14M, 160M, 160M 2, 16M, 215B, 215C, 215D, 219D, 225, 225D, 227, 229, 229D, 231D, 235B, 235C, 235D, 245, 245B, 245D, 311B, 311D LRR, 312, 312B L, 312C L, 312D, 312D L, ...
120M, 120M 2, 12M, 140M, 140M 2, 14M, 160M, 160M 2, 16M, 215B, 215C, 215D, 219D, 225, 225D, 227, 229, 229D, 231D, 235B, 235C, 235D, 245, 245B, 245D, 311B, 311D LRR, 312, 312B L, 312C L, 312D, 312D L, ...
1754807
PUMP & MOTOR GP
1090, 1190, 1190T, 1290T, 307B, 312B L, 312C, 315B L, 315C, 317B LN, 318B, 318C, 320B, D6M, M313C, M313D, M315C, M315D, M315D 2, M316C, M316D, M317D 2, M318C, M318C MH, M318D, M318D MH, M322C, M322D, ...
1090, 1190, 1190T, 1290T, 307B, 312B L, 312C, 315B L, 315C, 317B LN, 318B, 318C, 320B, D6M, M313C, M313D, M315C, M315D, M315D 2, M316C, M316D, M317D 2, M318C, M318C MH, M318D, M318D MH, M322C, M322D, ...
2396656
PUMP AS-FUEL PRIMING
311C, 312C, 312C L, 314C, 318C, 319C, 320B, 320C, 320C FM, 320C L, 320D, 320D LRR, 321C, 323D L, 323D LN
311C, 312C, 312C L, 314C, 318C, 319C, 320B, 320C, 320C FM, 320C L, 320D, 320D LRR, 321C, 323D L, 323D LN
1731203
PUMP GP-GEAR
311C, 311D LRR, 312C, 312C L, 312D, 312D L, 313D, 314C, 314D CR, 314D LCR, 315C, 315D L, 318D L, 319D, 319D L, 319D LN
311C, 311D LRR, 312C, 312C L, 312D, 312D L, 313D, 314C, 314D CR, 314D LCR, 315C, 315D L, 318D L, 319D, 319D L, 319D LN
2180557
PUMP GP-GEAR
311C, 311D LRR, 312C, 312C L, 312D, 312D L, 314C, 314D CR, 314D LCR, 315C, 315D L, 319D, 319D L, 319D LN
311C, 311D LRR, 312C, 312C L, 312D, 312D L, 314C, 314D CR, 314D LCR, 315C, 315D L, 319D, 319D L, 319D LN
2511938
PUMP & MOTOR GP-FUEL TRANSFER
312C, 315C, 318C, 319C, 584, D6N
312C, 315C, 318C, 319C, 584, D6N
2233383
PUMP AS-WASHER
120M, 312C, 525B, 535B, 545, 583T, 587R, 587T, 613C II, 615C, 621E, 623E, 627E, 631E, 633E II, 637E, 777G, 785D, 834H, 836H, 924K, 930K, 938K, 950H, 962H, 966H, 972H, 994F, D5N, D6K, D6K LGP, D6K XL, ...
120M, 312C, 525B, 535B, 545, 583T, 587R, 587T, 613C II, 615C, 621E, 623E, 627E, 631E, 633E II, 637E, 777G, 785D, 834H, 836H, 924K, 930K, 938K, 950H, 962H, 966H, 972H, 994F, D5N, D6K, D6K LGP, D6K XL, ...
2720709
PUMP-FUEL
311D LRR, 312C, 312D, 312D L, 314D CR, 314D LCR, 315C, 315D L, 318C, 319C, 319D, 319D L, 319D LN, D6N, D6R III, D6T
311D LRR, 312C, 312D, 312D L, 314D CR, 314D LCR, 315C, 315D L, 318C, 319C, 319D, 319D L, 319D LN, D6N, D6R III, D6T
9T1318
PUMP GP-METERING
789, 789B, 789C, 789D, 793, 793B, 793C, 793D, 793F, 793F AC, 793F CMD, 793F OEM, 793F-XQ, 797
789, 789B, 789C, 789D, 793, 793B, 793C, 793D, 793F, 793F AC, 793F CMD, 793F OEM, 793F-XQ, 797
3168366
PUMP GP-PISTON
621H, 621K, 623H, 623K LRC, 627H, 627K LRC
621H, 621K, 623H, 623K LRC, 627H, 627K LRC
2686337
PUMP GP-SUMP
3412C, C32
3412C, C32
3497072
PUMP GP-PISTON
2470C, 2570C, 2670C, 553C, 563C, 573C
2470C, 2570C, 2670C, 553C, 563C, 573C
3992626
PUMP GP-FUEL TRANSFER
CB22B, CB24B, CB32B, CB34B, CB34B XW, CC24B, CC34B
CB22B, CB24B, CB32B, CB34B, CB34B XW, CC24B, CC34B
7E8180
PUMP GP-WATER
3126, 3606, 3608, C280-6, C280-8, G3606, G3606B, G3608
3126, 3606, 3608, C280-6, C280-8, G3606, G3606B, G3608
4182202
PUMP GP-PISTON
2470C, 2570C, 2670C, 2864C, 553C, 563C, 573C, 586C
2470C, 2570C, 2670C, 2864C, 553C, 563C, 573C, 586C
2707250
PUMP & MTG GP-HYDRAULIC FAN
AP-600D, AP-655D, BG600D, BG655D
AP-600D, AP-655D, BG600D, BG655D
1014007
PUMP GP-GEAR
844, 844H, 844K, 854G, 854K, 990, 990 II, 990H, 990K, 992G, 992K
844, 844H, 844K, 854G, 854K, 990, 990 II, 990H, 990K, 992G, 992K
4N0242
PUMP GP-FUEL TFR & PRIMING
910, 931, 931B, 943, D3, D3B
910, 931, 931B, 943, D3, D3B
3172608
PUMP & MTG GP-BRAKE & HYD FAN
525D, 535D, 545D, 555D, 950K, 962K
525D, 535D, 545D, 555D, 950K, 962K
2058201
PUMP GP-FUEL INJECTION
3014, 3024, CB-334D, CB-335D
3014, 3024, CB-334D, CB-335D