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PULLEY 7W3780 - Caterpillar


7W3780 PULLEY Caterpillar parts 120H, 120H ES, 120H NA, 135H, 135H NA, 214B, 30/30, 3116, 3126, 3126B, 3126E, 320 L, 320B, 322B, 322B L, 322B LN, 322C, 322C FM, 325, 325B, 325B L, 35, 446B, 446D, 45, 525B, 535B, 539, 55, 550, 561M, ...
Rating:
18
Alternative (cross code) number:
CA7W3780
7W-3780
7W3780
Caterpillar 7W3780 PULLEY
Weight: 0.95 pounds 0 kg.

Buy PULLEY 7W3780 Caterpillar genuine, new aftermarket tractor parts with delivery
ASPHALT PAVER, WHEELED EXCAVATOR,

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$274.14

13 Jun 2025

CN: Excavator_Parts
7W-3780 7W3780 CAT3126 Water Pump Compatible for CAT Engine 3114 3114T 3116 3126 3126B 3126E C7 C-9 924F 928F 928G
Amwecwas 【Part Name】:Water Pump || 【Part Number】:7W-3780 7W3780 || 【Application】:Compatible for CAT Engine 3114 3114T 3116 3126 3126B 3126E C7 C-9 924F 928F 928G || For any questions about the product, including but not limited to pre-sale and after-sale issues, you can contact Amweswas, and we will reply to your email as soon as possible. || If you are unsure whether this product is suitable for your machine, please send a message to Amweswas before purchasing and provide detailed information. Amweswas will determine whether it meets your needs ahead of time.
$261.09

30 Apr 2025

CN: Excavator_Parts
7W-3780 7W3780 CAT3126 Water Pump Compatible for CAT Engine 3114 3114T 3116 3126 3126B 3126E C7 C-9 924F 928F 928G
Amwecwas 【Part Name】:Water Pump || 【Part Number】:7W-3780 7W3780 || 【Application】:Compatible for CAT Engine 3114 3114T 3116 3126 3126B 3126E C7 C-9 924F 928F 928G || For any questions about the product, including but not limited to pre-sale and after-sale issues, you can contact Amweswas, and we will reply to your email as soon as possible. || If you are unsure whether this product is suitable for your machine, please send a message to Amweswas before purchasing and provide detailed information. Amweswas will determine whether it meets your needs ahead of time.
$255.00

30 Apr 2025

CN: QJ-Space Parts
HESIEU 7W-3780 7W3780 Water Pump w/Gasket set compatible with Caterpillar Engine 3116 3126 3126B 3126E C-7 3126B 3116 3126 3126B C-9
HESIEU Replace Part Number: 7W-3780, 7W3780 || Application fis for: For Caterpillar Asphal Paver: AP-1000, AP-1000B, AP-1050B, AP-750, AP-900B, BG-2455C, BG-245C || Application fis for: For Caterpillar Engine: 3126B, 3116, 3126, 3126B, C-9 || Application fis for: For Caterpillar Engine: 3116, 3126, 3126b, 3126E, C-7 || The Package Include: 1 x Water Pump || Warranty: 1 Year
Number on catalog scheme: 2
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Compatible equipment models: 7W3780:

BACKHOE LOADER  446B   446D  
CHALLENGER  35   45   55  
COLD PLANER  PM-102  
FORWARDER  574  
GEN SET ENGINE  3126B  
INDUSTRIAL ENGINE  3116   3126   3126B   C-9  
INTEGRATED TOOLCARRIER  IT28F   IT28G   IT38F   IT38G   IT62G  
KNUCKLEBOOM LOADER  539  
MOTOR GRADER  120H   120H ES   120H NA   135H   135H NA  
PIPELAYER  561M  
PUMPER  SPP101  
TRACK LOADER  953C   963B   963C  
TRACK-TYPE TRACTOR  30/30   D5M   D6M   DEUCE  
TRUCK ENGINE  3116   3126   3126B   3126E   C7  
WHEEL HARVESTER  550   570   580  
WHEEL SKIDDER  525B   535B  
WHEEL TRACTOR  613C II  
WHEELED EXCAVATOR  M318   M320   M325B   Caterpillar

Information:


Illustration 1 g03336909
Aftercooler condensate drain valves
(1) Drain valves
(2) Valve seats
(3) Plungers The engine boost pressure forces the plunger to move down to the valve seat. The plunger must close against the seat at a pressure of 27.5 kPa (4 psi). When the engine stops, the absence of boost pressure allows the plunger to rise to the open position, allowing condensation from the aftercooler to drain.The plunger must be able to move freely in order to close the system when the engine is running. The plunger must be able to move freely in order to allow condensation to drain from the aftercooler when the engine is stopped. Residue from normal engine operation could cause the plunger to stick.
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Cat Dealer Service Tool Catalog" or refer to Special Publication, PECJ0003, "Cat Shop Supplies and Tools Catalog" for tools and supplies suitable to collect and contain fluids on Cat products.Dispose of all fluids according to local regulations and mandates.
Remove the valve from the adapter. Check the valve in order to determine if the plunger moves freely. If the plunger does not move easily, clean the valve with solvent.
Reassemble the aftercooler condensate drain valve. Refer to the Specifications Manual, SENR3130, "Torque Specifications" for more information on the proper torques.

Cat SIS web machinery list:

Caterpillar parts catalog
3116 Industrial Engine 4PG00001-UP
3116 Industrial Engine 2WG00001-UP
3116 Truck Engine 9LN00001-UP
3116 Industrial Engine 5EN00001-UP
3116 Industrial Engine 2MR00001-UP
3126 Industrial Engine 9ZR00001-UP
3126 Industrial Engine ATAAC 3TR00001-UP
3126 Truck Engine 1WM00001-UP
3126 Truck Engine ATAAC 8HW00001-UP
3126B Truck Engine 7AS00001-13352
3126 Industrial Engine 6MS00001-UP
3126 Truck Engine 7LZ00001-UP
3126B and 3126E Truck Engine 8SZ00001-UP
3126B Truck Engine 7AS13353-UP
3126B and 3126E Truck Engines 1AJ00001-UP
3126B Truck Engine 5GL00001-UP
3126B Truck Engine 8YL00001-UP
3126B Truck Engine Military 6PZ00001-UP
3126B And 3126E Truck Engines BKD00001-UP
3126B Industrial Engine BEJ00001-UP
C-9 Industrial Engine CLJ00001-UP
3126E Truck Engine CKM00001-UP
3126E Truck Engine 9SZ00001-UP
3126E Truck Engine CRP00001-UP
3126E Truck Engine HEP00001-UP
3126B Industrial Engine DCS00001-UP
3126 Truck Engine (Military) 1BW00001-UP
3126E Truck Engine DPF00001-UP
SPP101 Skid Mounted Pumper 71500001-UP
C7 On-highway Engine KAL00001-UP
C7 Engine for Combat and Tactical Vehicles FML00001-UP
3126B Gen Set Engine BDZ00001-UP
3126E Truck Engine G3E00001-UP
C7 On-highway Engine YPG00001-UP
C7 On-highway Engine LBM00001-UP
C7 Engine For Combat and Tactical Vehicles RMF00001-UP
C7 Military Engine JRT00001-UP POWERED BY C7 Engine
AP-1000 Asphalt Paver 1HD00001-UP (MACHINE) POWERED BY 3116 Engine
CS-563C, CP-563C Vibratory Compactors 4KN00001-UP (MACHINE) POWERED BY 3116 Engine
CP-563C CS-563C Vibratory Compactors 4LN00001-UP (MACHINE) POWERED BY 3116 Engine
CS-573C Vibratory Compactor 6LN00001-UP (MACHINE) POWERED BY 3116 Engine
CS-583C Vibratory Compactor 7MN00001-UP (MACHINE) POWERED BY 3116 Engine
CS-583C Vibratory Compactor 7NN00001-UP (MACHINE) POWERED BY 3116 Engine
CB-634C Vibratory Compactor 3BR00001-UP (MACHINE) POWERED BY 3116 Engine
CATERPILLAR AP-1050B BARBER-GREENE BG-245C Asphalt Pavers 4XN00001-UP (MACHINE) POWERED BY 3116 Engine
Caterpillar AP-1055B, Barber-Greene BG-2455C Asphalt Pavers 6TN00001-UP (MACHINE) POWERED BY 3116 Engine
AP-1000B, BG-260C Asphalt Paver 7HN00001-UP (MACHINE) POWERED BY 3116 Engine
CS-563D CP-563D Vibratory Compactors 9MW00001-UP (MACHINE) POWERED BY 3116 Engine
CS-563D Compactor-Military 1SZ00001-UP (MACHINE) POWERED BY 3116 Engine
CP-563D CS-563D Vibratory Compactors 2RZ00001-UP (MACHINE) POWERED BY 3116 Engine
Caterpillar AP-1055B, Barber-Greene BG-2455C Asphalt Paver ABB00001-UP (MACHINE) POWERED BY 3116 Engine
CS-583D Vibratory Compactor 2CZ00001-UP (MACHINE) POWERED BY 3116 Engine
CS-583D Vibratory Compactor 3GZ00001-UP (MACHINE) POWERED BY 3116 Engine
CS-531D Vibratory Compactor 3AZ00001-UP (MACHINE) POWERED BY 3116 Engine
CS-531D Vibratory Compactor 4MZ00001-UP (MACHINE) POWERED BY 3116 Engine
CP-533D CS-533D Vibratory Compactor 5CZ00001-UP (MACHINE) POWERED BY 3116 Engine
Caterpillar AP-900B Barber Greene BG-240C Asphalt Pavers AGJ00001-UP (MACHINE) POWERED BY 3116 Engine
CS-533D, CP-533D Vibratory Compactor AET00001-UP (MACHINE) POWERED BY G3116 Engine
CS-531D Vibratory Compactor AGH00001-UP (MACHINE) POWERED BY 3116 Engine
CS-573D Vibratory Compactor 2YZ00001-UP (MACHINE) POWERED BY 3116 Engine
CS-573D Vibratory Compactor CMK00001-UP (MACHINE) POWERED BY 3116 Engine
DEUCE Engineer Support Tractor 7RR00001-UP (MACHINE) POWERED BY 3126 Engine
30-30 Engineer Support Tractor 9XW00001-UP (MACHINE) POWERED BY 3126 Engine
AP-1000B,BG-260C Asphalt Paver AGP00001-UP (MACHINE) POWERED BY 3116 Engine
AP-1055B,BG-2455C Asphalt Paver A3P00001-UP (MACHINE) POWERED BY 3116 Engine
C7 Caterpillar Engine For PM102 Cold Planer Z2X00001-UP (MACHINE) POWERED BY C7 Engine
AP755 Asphalt Paver B3T00001-UP (MACHINE) POWERED BY C7 Engine
3116 Industrial Engine 2WG00001-UP
IT28F Integrated Toolcarrier 3CL00001-01199 (MACHINE) POWERED BY 3116 Engine
446B Backhoe Loader 5BL00001-03294 (MACHINE) POWERED BY 3114 Engine
Challenger 35 and Challenger 45 Agricultural Tractors 1DR00001-01699 (MACHINE) POWERED BY 3116 Engine
120H Motor Grader 4MK00001-UP (MACHINE) POWERED BY 3116 Engine
135H Motor Grader 3YK00001-UP (MACHINE) POWERED BY 3116 Engine
IT28F Integrated Toolcarrier 3CL01200-UP (MACHINE) POWERED BY 3116 Engine
IT38F Integrated Toocarrier 6FN00001-UP (MACHINE) POWERED BY 3116 Engine
IT28G Integrated Toolcarrier 8CR00001-UP (MACHINE) POWERED BY 3116 Engine
120H Motor Grader 6NM00001-UP (MACHINE) POWERED BY 3116 Engine
IT38F Integrated Toolcarrier 5DR00001-UP (MACHINE) POWERED BY 3116 Engine
Challenger 55 Agricultural Tractor 7DM00001-00849 (MACHINE) POWERED BY 3126 Engine
120H Motor Grader 6TM00001-00442 (MACHINE) POWERED BY 3116 Engine
135H Motor Grader 8WN00001-UP (MACHINE) POWERED BY 3116 Engine
120H Motor Grader 5FM00001-UP (MACHINE) POWERED BY 3116 Engine
120H Motor Grader 2AN00001-UP (MACHINE) POWERED BY 3116 Engine
IT62G Integrated Toolcarrier 6PS00001-UP (MACHINE) POWERED BY 3126 Engine
IT38G Integrated Toolcarrier 7BS00001-UP (MACHINE) POWERED BY 3126 Engine
120H Motor Grader 9YR00001-UP (MACHINE) POWERED BY 3116 Engine
IT38G Integrated Toolcarrier 1CW00001-UP (MACHINE) POWERED BY 3126 Engine
Challenger 35 & Challenger 45 Agricultural Tractors 1DR01700-UP (MACHINE) POWERED BY 3116 Engine
Challenger 55 Agricultural Tractor 7DM00850-UP (MACHINE) POWERED BY 3126 Engine
561M Track-Type Pipelayer Power Shift 1KW00001-UP (MACHINE) POWERED BY 3116 Engine
Challenger 35, Challenger 45 & Challenger 55 Agricultural Tractors 4DZ00001-UP (MACHINE) POWERED BY 3116 & 3126 Engines
550 Wheel Harvester 7ZN00001-UP (MACHINE) POWERED BY 3126 Engine
570 Wheel Harvester 4XR00001-UP (MACHINE) POWERED BY 3126 Engine
539 Knuckle Boom Loader 1PZ00001-UP (MACHINE) POWERED BY 3126 Engine
Challenger 55 Agricultural Tractor 60 in (1524 mm) Base Gauge 6NN00001-UP (MACHINE) POWERED BY 3126 Engine
Challenger 35 & Challenger 45 Agricultural Tractors 60 in (1524 mm) Base Gauge 8RD00001-UP (MACHINE) POWERED BY 3116 Engine
Challenger 35 & Challenger 45 Agricultural Tractors 80 in (2032 mm) Base Gauge 3BK00001-UP (MACHINE) POWERED BY 3116 Engine
Challenger 35, Challenger 45 & Challenger 55 Agricultural Tractors 60 in (1524 mm) Track Gauge & 80 in (2032 mm) Track Gauge 3HS00001-UP (MACHINE) POWERED BY 3116 & 3126 Engines
580 Wheel Harvester 7CN00001-UP (MACHINE) POWERED BY 3126 Engine
574 Forwarder 1FM00001-UP (MACHINE) POWERED BY 3126 Engine
IT28G Integrated Toolcarrier 9AR00001-01175 (MACHINE) POWERED BY 3116 Engine
Challenger 55 Agricultural Tractor 80 in (2032 mm) Base Gauge AEN00001-UP (MACHINE) POWERED BY 3126 Engine
IT62G Integrated Tool Carrier AKP00001-UP (MACHINE) POWERED BY 3126 Engine
446B Backhoe Loader 5BL00001-00383 (MACHINE) POWERED BY 3114 Engine
446B Backhoe Loader 5BL00384-02499 (MACHINE) POWERED BY 3114 Engine
446B Backhoe Loader 5BL02500-UP (MACHINE) POWERED BY 3114 Engine
120H Series NA Motor Grader 6YN00001-UP (MACHINE) POWERED BY 3116 Engine
135H Series NA Motor Grader BDJ00001-UP (MACHINE) POWERED BY 3116 Engine
LEXION 460 COMBINE 3HZ00001-UP (MACHINE) POWERED BY 3126B Engine
446D Backhoe Loader DBL00001-UP (MACHINE) POWERED BY 3114 Engine


Parts pulley Caterpillar catalog:

1247792 PULLEY AS-IDLER
120K, 120K 2, 12K, 140G, 140K, 140K 2, 140M, 14M, 160K, 160M, 3116, 3126, 3126B, 3126E, 777C, 777D, 814F, 815F, 824C, 953C, 963C, 966G II, 972G II, 980G, 980G II, 980H, AP-1055D, AP-755, BG-2455D, BG-...
1445611 PULLEY AS-IDLER
120H, 12H, 135H, 140H, 143H, 14H, 160H, 163H, 16H, 3116, 3126, 3126B, 3126E, 3512C, 3516B, 525C, 535C, 545C, 613G, 725, 730, 789D, 793D, 797B, 815B, 844, 854G, 938G II, 938H, 950G II, 950H, 962G II, 9...
1230791 PULLEY
2864C, 3126, 3126B, 3126E, 3176C, 3196, 3406E, 345C, 345C L, 345C MH, 345D, 345D L, 345D L VG, 349D, 349D L, 349E, 349E L, 349E L HVG, 349E L VG, 349F L, 365C, 365C L, 365C L MH, 374D L, 385B, 385C, 3...
1979642 PULLEY AS-IDLER
14M, 16M, 3126, 3126B, 3126E, 330D, 330D FM, 330D L, 330D LN, 330D MH, 336D, 336D L, 336D LN, 336D2, 336D2 L, 3406E, 340D L, 340D2 L, 345C, 345C L, 345C MH, 345D, 345D L, 345D L VG, 349D, 349D L, 525C...
1230790 PULLEY
140H, 143H, 14H, 160H, 163H, 16H, 3126E, 3176C, 3196, 345D L, 374F L, 390F L, 621H, 621K, 623H, 623K, 623K LRC, 627H, 627K, 627K LRC, 725, 725C, 730, 730C, 770, 770G, 770G OEM, 772, 772G, 772G OEM, 84...
1173437 PULLEY
120H, 120K, 12K, 135H, 140K, 140K 2, 160K, 3116, 3126, 3126B, 3126E, 322C, 322C FM, 324D, 324D FM, 324D FM LL, 324D L, 324D LN, 325C, 325C FM, 325D, 325D FM, 325D FM LL, 325D L, 325D MH, 328D LCR, 329...
1421988 PULLEY AS-IDLER
C-10, C-12, C7, C9, TH31-E61
1979641 PULLEY AS-IDLER
3126B, 3126E, 3406E, 3512C, 793F, 793F-XQ, 795F AC, 797, 797B, 797F, 938H, 966G II, 972G II, C-12, C-15, C-16, C13, C15, C7, C9, CX31-C13I, CX31-C9I, IT38H, TH31-E61, TH35-C13I
0854772 PULLEY AS
311, 311B, 312B, 315, 315B, 317B LN, 318B, 320 L, 320B, 320N, E110B, E120B
2396626 PULLEY-IDLER
311D LRR, 312C, 312C L, 312D, 312D L, 313D, 314D CR, 314D LCR, 315C, 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, 320D...
1W4369 PULLEY-ALTERNATOR
320B, 322C FM, 325B L, 611, 615, 615C, 814B, 815B, 950B, 950B/950E, 963, 966D, 973, 973C, CS-643, G936
7E3596 PULLEY-FAN DRIVE
950F, 950F II, 960F
7C9401 PULLEY-FAN DRIVE
446, 446B, 446D, CB-634, CB-634C, E110B, E120B, E200B, E240C
1154237 PULLEY-IDLER
120H, 120H ES, 120H NA, 135H, 135H NA, 3114, 3116, 3126, 3126B, 3126E, 320B, 322B L, 322B LN, 322C, 322C FM, 325B L, 35, 446, 446B, 446D, 45, 525B, 535B, 539, 550, 561M, 570, 574, 580, 613C II, 814F I...
1134457 PULLEY-ALTERNATOR
416B, 416C, 416D, 420D, 424D, 426B, 426C, 428B, 428C, 428D, 430D, 432D, 436C, 438C, 438D, 442D, 908, 914G, CB-434D, CB-534D, CB-564D, CB-634D, CD-54, IT14G
1142863 PULLEY-ALTERNATOR
416B, 416C, 416D, 420D, 424D, 426C, 428B, 428C, 428D, 430D, 432D, 436C, 438B, 438C, 438D, 442D, 908, TH103, TH62, TH63, TH82, TH83
6I0657 PULLEY
3054, 3056, 416B, 426B, 428B, 438B, CB-434B, CB-434C, CB-534B, CB-544, CP-433C, CS-431C
4P7051 PULLEY-ALTERNATOR
35, 45, 55, 561M, 938G, 950F, 950F II, 950G, 960F, 962G, D5M, D6M, DEUCE, IT38G, IT62G
9Y9176 PULLEY-CRANKSHAFT
3116, 320 L, 45, 938G, 950G, 962G, AP-1000B, AP-1055B, BG-2455C, BG-245C, CB-634, IT38G
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