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PUMP GP-FUEL INJECTION 6N1043 - Caterpillar


6N1043 PUMP GP-FUEL INJECTION Caterpillar parts 245, 3406, 3408, 3412, 621B, 631D, 633D, 637D, 639D, 768C, 769C, 772B, 773B, 988B, 992C
Rating:
45
Alternative (cross code) number:
CA6N1043
6N-1043
6N1043
Caterpillar 6N1043 PUMP GP-FUEL INJECTION
Weight: 0.60 pounds 0 kg.

Buy PUMP GP-FUEL INJECTION 6N1043 Caterpillar genuine, new aftermarket tractor parts with delivery
EXCAVATOR, WHEEL TRACTOR,

Compare Prices: .

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$199.99

28 Aug 2025

US: Zbox Global, LL
6N1043 Fuel Injection Pump fits Caterpillar 3406 3408 3412 631D 633D 637D 639D 621B 768C 769C 772B 773B 992C 245
ZBOX 【FITMENT MODELS】 Fits Caterpillar 3406 - 3408 - 3412 - 631D - 633D - 637D - 639D - 768C - 769C - 772B - 773B - 992C - 245 - 621B || 【AMERICAN OWNED & OPERATED】Fully owned and operated within the United States, our business is dedicated to contributing to local economies, supporting American jobs, and fostering community growth. || 【QUALITY REPLACEMENT】Engineered for durability and performance, our parts meet or exceed OEM specifications. Ideal for construction and agriculture machinery, ensuring reliability and efficiency in tough working conditions. || 【PACK SIZE】This product is a pack of 1, making it easy to stock up and ensure you have the necessary parts on hand for maintenance.
$158.52

07 Aug 2025

Amazon.com
CTP 6N1043 GR Fuel Injection Pump
CTP Case hardened needle seat for maximum durability || Ultra precise needle-to-body gap for proper hydraulic performance || Hydraulic grinding for exact fuel delivery and atomization
$183.45

07 Aug 2025

US: Zbox Global, LL
6N1043 Fuel Injection Pump fits Caterpillar 3406 3408 3412 631D 633D 637D 639D 621B 768C 769C 772B 773B 992C 245
ZBOX 【FITMENT MODELS】 Fits Caterpillar 3406 - 3408 - 3412 - 631D - 633D - 637D - 639D - 768C - 769C - 772B - 773B - 992C - 245 - 621B || 【AMERICAN OWNED & OPERATED】Fully owned and operated within the United States, our business is dedicated to contributing to local economies, supporting American jobs, and fostering community growth. || 【QUALITY REPLACEMENT】Engineered for durability and performance, our parts meet or exceed OEM specifications. Ideal for construction and agriculture machinery, ensuring reliability and efficiency in tough working conditions. || 【PACK SIZE】This product is a pack of 1, making it easy to stock up and ensure you have the necessary parts on hand for maintenance.
Number on catalog scheme: 33
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Compatible equipment models: 6N1043:

EXCAVATOR  245  
INDUSTRIAL ENGINE  3406   3408   3412  
MARINE ENGINE  3406   3408   3412  
TRACTOR  768C   772B  
TRUCK  769C   773B  
TRUCK ENGINE  3406   3408  
WHEEL LOADER  988B   992C  
WHEEL TRACTOR  621B   631D   633D   637D   639D   Caterpillar

Information:

Use only TIF heat rejection data for heat recovery calculations, DO NOT USE RULES OF THUMB.Conversions:
One Boiler HP = 558 BTU/min = 33,475 BTU/hr = 9.8 kWOne Refrigeration Ton = 200 BTU/min = 12,000 BTU/hr = 3.5 kWRecoverable Exhaust Heat:
Heat recovery mufflers economically recover about half the engine exhaust heat. Exhaust exit temperature above 300°F (149°C) discourages condensation in ducting.Recoverable heat is obtained from the engine manufacturers but can be estimated by:Q = CpM (T1 - T2)Where: Q = Recoverable Heat (Btu/h)Cp = Specific Heat (Btu/lb per °F) Diesel Engines - 0.258Gas Engines - 0.279T1 = Exhaust Gas Stack Temperature °FT2 = Exhaust Gas Exit Temperature °F (300°F Minimum)M = Exhaust Mass Flow (lb/h)or Q = CpM (T1 - T2)Where: Q = KJ/hCp = Diesel Engines - 1.081 KJ/kg per °C Gas Engines - 1,169 KJ/kg per °CM = Exhaust Mass Flow (kg/h)Enthalpy Table:
Ebullient and Solid Water Cooled Engines:
Make-up Water Characteristics (max concentrations):
Iron 0.1 ppmCopper 0.05 ppmTotal hardness 0.3 ppm as CaCO3Feed Water Characteristics (max concentrations):
Silica concentration 150 ppm as Si02Total Alkalinity 700 ppm as calcium CaCO3Specific Conductance 3500 micro ohm per centimeterTotal Suspended Solids 10 ppmFeed Water Chemical Treatment Program:
1. Maintain oxygen scavenger to remove oxygen from the feed water with sufficient reserve to remove all oxygen from the water.2. Maintain 200 to 400 ppm as CaCO3 equivalent of hydroxide alkalinity in the feed water. The reserve alkalinity prevents corrosion and causes precipitates of iron and silica in a form that can be removed by blow down.3. A blend of dispersants to adequately condition and suspend the precipitated solids in the water. The dispersants keep the solids suspended until they are removed during blow down.4. Appropriate treatment of the stream to provide condensate returning to the boiler that meets the feed water specifications.

Caterpillar SIS machinery equipment:

Caterpillar SIS
245 EXCAVATOR 94L00001-00254 (MACHINE) POWERED BY 3406 ENGINE » 6N-1043 PUMP GP-FUEL INJECTION
245 EXCAVATOR 94L00255-UP (MACHINE) POWERED BY 3406 ENGINE » 6N-1043 PUMP GP-FUEL INJECTION
245 EXCAVATOR 84X00001-UP (MACHINE) POWERED BY 3406 ENGINE » 6N-1043 PUMP GP-FUEL INJECTION
3406 INDUSTRIAL ENGINE 90U00440-19730 » 6N-1043 PUMP GP-FUEL INJECTION
3406 TRUCK ENGINE 92U02701-14042 » 6N-1043 PUMP GP-FUEL INJECTION
3406 MARINE ENGINE 91U00123-UP » 6N-1043 PUMP GP-FUEL INJECTION
637D TRACTORS 26W00001-UP (MACHINE) POWERED BY 3408 ENGINE » 6N-1043 PUMP GP-FUEL INJECTION
633D TRACTOR 25W00001-UP (MACHINE) POWERED BY 3408 ENGINE » 6N-1043 PUMP GP-FUEL INJECTION
631D TRACTOR 24W00001-UP (MACHINE) POWERED BY 3408 ENGINE » 6N-1043 PUMP GP-FUEL INJECTION
988B WHEEL LOADER 50W00001-06040 (MACHINE) POWERED BY 3408 ENGINE » 6N-1043 PUMP GP-FUEL INJECTION
3408 MARINE ENGINE 99U00001-04603 » 6N-1043 PUMP GP-FUEL INJECTION
3408 INDUSTRIAL ENGINE 67U00001-UP » 6N-1043 PUMP GP-FUEL INJECTION
3412B Marine Engine 60M00001-05160 » 6N-1043 PUMP GP-FUEL INJECTION
3412 INDUSTRIAL ENGINE 38S00001-13235 » 6N-1043 PUMP GP-FUEL INJECTION
3408 TRUCK ENGINE 28V00001-04749 » 6N-1043 PUMP GP-FUEL INJECTION
245 EXCAVATOR 82X00001-UP (MACHINE) POWERED BY 3406 ENGINE » 6N-1043 PUMP GP-FUEL INJECTION
992C WHEEL LOADER 42X00001-UP (MACHINE) POWERED BY 3412 ENGINE » 6N-1043 PUMP GP-FUEL INJECTION
3406 TRUCK ENGINE 92U14043-29990 WHITE » 6N-1043 PUMP GP-FUEL INJECTION
3406 TRUCK ENGINE 92U14043-29990 IHC » 6N-1043 PUMP GP-FUEL INJECTION
3406 TRUCK ENGINE 92U14043-29990 PACCAR » 6N-1043 PUMP GP-FUEL INJECTION
3406 TRUCK ENGINE 92U14043-29990 » 6N-1043 PUMP GP-FUEL INJECTION
769C TRUCK 01X00001-02876 (MACHINE) POWERED BY 3408 ENGINE » 6N-1043 PUMP GP-FUEL INJECTION
768C TRACTOR 02X00001-00349 (MACHINE) POWERED BY 3408 ENGINE » 6N-1043 PUMP GP-FUEL INJECTION
773B TRUCK 63W00001-01220 (MACHINE) POWERED BY 3412 ENGINE » 6N-1043 PUMP GP-FUEL INJECTION
772B TRACTOR 64W00001-00167 (MACHINE) POWERED BY 3412 ENGINE » 6N-1043 PUMP GP-FUEL INJECTION
3408 INDUSTRIAL ENGINE 67U02792-11091 » 6N-1043 PUMP GP-FUEL INJECTION
639D TRACTOR / POWER SHIFT / 99X00001-UP (MACHINE) POWERED BY 3408 ENGINE » 6N-1043 PUMP GP-FUEL INJECTION
3406 Industrial Engine 90U19731-UP » 6N-1043 PUMP GP-FUEL INJECTION
3406 TRUCK ENGINE 92U00001-02700 » 6N-1043 PUMP GP-FUEL INJECTION
3406 INDUSTRIAL ENGINE 90U00001-00439 » 6N-1043 PUMP GP-FUEL INJECTION
3406 MARINE ENGINE 91U00001-00122 » 6N-1043 PUMP GP-FUEL INJECTION
3406 VEHICULAR ENGINE 45P00001-UP (MACHINE) » 6N-1043 PUMP GP-FUEL INJECTION
637D TRACTOR 71W00001-UP (MACHINE) » 6N-1043 PUMP GP-FUEL INJECTION
3406 ENGINE 35V00001-UP (MACHINE) » 6N-1043 PUMP GP-FUEL INJECTION

Cat SIS web machinery list:

Caterpillar parts catalog
3406 INDUSTRIAL ENGINE 90U00440-19730
3406 MARINE ENGINE 91U00123-UP
3408 MARINE ENGINE 99U00001-04603
3408 INDUSTRIAL ENGINE 67U00001-UP
3412B Marine Engine 60M00001-05160
3408 INDUSTRIAL ENGINE 67U02792-11091
3406 Industrial Engine 90U19731-UP
3406 MARINE ENGINE 91U00001-00122
3408 INDUSTRIAL ENGINE 67U00001-UP
3408 INDUSTRIAL ENGINE 67U02792-11091
3406 VEHICULAR ENGINE 45P00001-UP (MACHINE)
3406 ENGINE 35V00001-UP (MACHINE)
245 EXCAVATOR 94L00001-00254 (MACHINE) POWERED BY 3406 ENGINE
3406 INDUSTRIAL ENGINE 90U00440-19730
3406 TRUCK ENGINE 92U02701-14042
3406 MARINE ENGINE 91U00123-UP
3406 TRUCK ENGINE 92U00001-02700
3406 INDUSTRIAL ENGINE 90U00001-00439
3406 MARINE ENGINE 91U00001-00122
3406 VEHICULAR ENGINE 45P00001-UP (MACHINE)
3406 ENGINE 35V00001-UP (MACHINE)
3406 VEHICULAR ENGINE 45P00001-UP (MACHINE)
3406 ENGINE 35V00001-UP (MACHINE)
3406 INDUSTRIAL ENGINE 90U00440-19730
3406 TRUCK ENGINE 92U14043-29990 WHITE
3406 TRUCK ENGINE 92U14043-29990 IHC
3406 TRUCK ENGINE 92U14043-29990
3406 VEHICULAR ENGINE 45P00001-UP (MACHINE)
245 EXCAVATOR 94L00255-UP (MACHINE) POWERED BY 3406 ENGINE
245 EXCAVATOR 84X00001-UP (MACHINE) POWERED BY 3406 ENGINE
3406 MARINE ENGINE 91U00123-UP
245 EXCAVATOR 82X00001-UP (MACHINE) POWERED BY 3406 ENGINE
3406 TRUCK ENGINE 92U14043-29990 PACCAR
3406 VEHICULAR ENGINE 45P00001-UP (MACHINE)
3406 ENGINE 35V00001-UP (MACHINE)
245 EXCAVATOR 94L00001-00254 (MACHINE) POWERED BY 3406 ENGINE
3406 INDUSTRIAL ENGINE 90U00440-19730
3406 TRUCK ENGINE 92U02701-14042
3406 MARINE ENGINE 91U00123-UP
3406 INDUSTRIAL ENGINE 90U00001-00439
245 EXCAVATOR 94L00001-00254 (MACHINE) POWERED BY 3406 ENGINE
3406 TRUCK ENGINE 92U02701-14042
3406 VEHICULAR ENGINE 45P00001-UP (MACHINE)
3406 ENGINE 35V00001-UP (MACHINE)
245 EXCAVATOR 94L00001-00254 (MACHINE) POWERED BY 3406 ENGINE
3406 INDUSTRIAL ENGINE 90U00440-19730
3406 TRUCK ENGINE 92U02701-14042
3406 MARINE ENGINE 91U00123-UP
3406 TRUCK ENGINE 92U00001-02700
3406 INDUSTRIAL ENGINE 90U00001-00439
3406 MARINE ENGINE 91U00001-00122
3406 VEHICULAR ENGINE 45P00001-UP (MACHINE)
3406 ENGINE 35V00001-UP (MACHINE)
3406 VEHICULAR ENGINE 45P00001-UP (MACHINE)
3406 ENGINE 35V00001-UP (MACHINE)
988B WHEEL LOADER 50W00001-06040 (MACHINE) POWERED BY 3408 ENGINE
637D TRACTORS 26W00001-UP (MACHINE) POWERED BY 3408 ENGINE
633D TRACTOR 25W00001-UP (MACHINE) POWERED BY 3408 ENGINE
631D TRACTOR 24W00001-UP (MACHINE) POWERED BY 3408 ENGINE
3408 MARINE ENGINE 99U00001-04603
3408 INDUSTRIAL ENGINE 67U00001-UP
3408 TRUCK ENGINE 28V00001-04749
637D TRACTORS 26W00001-UP (MACHINE) POWERED BY 3408 ENGINE
633D TRACTOR 25W00001-UP (MACHINE) POWERED BY 3408 ENGINE
631D TRACTOR 24W00001-UP (MACHINE) POWERED BY 3408 ENGINE
3408 INDUSTRIAL ENGINE 67U00001-UP
637D TRACTORS 26W00001-UP (MACHINE) POWERED BY 3408 ENGINE
633D TRACTOR 25W00001-UP (MACHINE) POWERED BY 3408 ENGINE
631D TRACTOR 24W00001-UP (MACHINE) POWERED BY 3408 ENGINE
988B WHEEL LOADER 50W00001-06040 (MACHINE) POWERED BY 3408 ENGINE
3408 MARINE ENGINE 99U00001-04603
3408 INDUSTRIAL ENGINE 67U00001-UP
3408 TRUCK ENGINE 28V00001-04749
769C TRUCK 01X00001-02876 (MACHINE) POWERED BY 3408 ENGINE
768C TRACTOR 02X00001-00349 (MACHINE) POWERED BY 3408 ENGINE
3408 INDUSTRIAL ENGINE 67U02792-11091
639D TRACTOR / POWER SHIFT / 99X00001-UP (MACHINE) POWERED BY 3408 ENGINE
3406 INDUSTRIAL ENGINE 90U00440-19730
3406 TRUCK ENGINE 92U14043-29990 WHITE
3406 TRUCK ENGINE 92U14043-29990 IHC
3406 TRUCK ENGINE 92U14043-29990
3406 VEHICULAR ENGINE 45P00001-UP (MACHINE)
637D TRACTORS 26W00001-UP (MACHINE) POWERED BY 3408 ENGINE
633D TRACTOR 25W00001-UP (MACHINE) POWERED BY 3408 ENGINE
631D TRACTOR 24W00001-UP (MACHINE) POWERED BY 3408 ENGINE
988B WHEEL LOADER 50W00001-06040 (MACHINE) POWERED BY 3408 ENGINE
3408 MARINE ENGINE 99U00001-04603
3408 INDUSTRIAL ENGINE 67U00001-UP
3408 TRUCK ENGINE 28V00001-04749
3406 VEHICULAR ENGINE 45P00001-UP (MACHINE)
3412 INDUSTRIAL ENGINE 38S00001-13235
992C WHEEL LOADER 42X00001-UP (MACHINE) POWERED BY 3412 ENGINE
773B TRUCK 63W00001-01220 (MACHINE) POWERED BY 3412 ENGINE
3406 VEHICULAR ENGINE 45P00001-UP (MACHINE)
3406 ENGINE 35V00001-UP (MACHINE)
637D TRACTORS 26W00001-UP (MACHINE) POWERED BY 3408 ENGINE
633D TRACTOR 25W00001-UP (MACHINE) POWERED BY 3408 ENGINE
631D TRACTOR 24W00001-UP (MACHINE) POWERED BY 3408 ENGINE
988B WHEEL LOADER 50W00001-06040 (MACHINE) POWERED BY 3408 ENGINE
3408 MARINE ENGINE 99U00001-04603
3408 INDUSTRIAL ENGINE 67U00001-UP
3408 TRUCK ENGINE 28V00001-04749
3408 INDUSTRIAL ENGINE 67U02792-11091
3406 ENGINE 35V00001-UP (MACHINE)
637D TRACTOR 71W00001-UP (MACHINE)


Parts pump Caterpillar catalog:

6E4772 PUMP GP-GEAR
772B, 773B, 773D, 775B, 775D
2313946 PUMP GP-FUEL TRANSFER
16M, 631D, 631E, 631G, 633E II, 637E, 637G, 966H, 972H, C-15, C-16, C-18, C15, C16, D8N, TH35-C15T
2W3413 PUMP GP-FUEL INJECTION
16G, 245, 3406B, 3412, 578, 621E, 623E, 627E, 824C, 826C, 980C, SS-250
1052508 PUMP AS-FUEL PRIMING
120G, 12G, 12H, 12H ES, 12H NA, 140H, 140H ES, 140H NA, 143H, 14H, 14H NA, 160H, 160H ES, 160H NA, 163H, 163H NA, 16G, 16H, 16H NA, 214B, 235, 3114, 3116, 3126, 3126B, 3126E, 3176, 3176B, 3176C, 3196,...
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,...
4W0788 PUMP AS-FUEL PRIMING
14G, 205B, 215B, 224B, 235, 245, 3114, 3116, 320 L, 330 L, 3304, 3304B, 3306, 3306B, 350, 3516, 375, 446, 528, 572G, 621, 910E, 920, 926, 936F, 943, 950B, 950F, 953, 953C, 966F, 980C, 980F, C-12, C12,...
2W2605 PUMP AS-FUEL PRIMING
120H, 120H ES, 120H NA, 135H, 135H NA, 3114, 3116, 320 L, 320B, 322B L, 322B LN, 325, 325 L, 325B, 325B L, 3508B, 3512, 3512B, 3516B, 5130, 5130B, 5230, 561M, 589, 631E, 633E II, 637E, 651E, 657E, 769...
4N2511 PUMP ASSEM.
120G, 140B, 140G, 235, 245, 3406, 3412, 920, 930, 941, 966C, D35HP, D400, D4D, D5B, D6C, D6D
7T8891 PUMP AS-WASHER
120G, 120H, 120H ES, 120H NA, 120K, 120K 2, 12G, 12H, 12H ES, 12H NA, 12K, 130G, 135H, 135H NA, 140G, 140H, 140H ES, 140H NA, 140K, 140K 2, 143H, 14G, 14H, 14H NA, 160H, 160H ES, 160H NA, 160K, 163H, ...
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, ...
8N0490 PUMP ASSEM.
963, 973, 992C, D10, D9H
2476050 PUMP GP-FUEL PRIMING
586C, 621H, 621K, 623H, 623K LRC, 627H, 627K LRC, 730C, 735B, 740B, 770G, 772G, 773G, 773G LRC, 773G OEM, 775G, 775G LRC, 775G OEM, 777G, 824K, 825K, 826K, 834H, 834K, 836H, 844H, 844K, 854K, 986H, 98...
2W8002 PUMP GP-WATER
1673C, 3304, 3306, 3306B, 518, 518C, 528, 528B, 530B, 615, 615C, 621E, 621R, 627B, 627E, 814B, 815B, 816B, 920, 930, 930R, 936, 936F, 950B, 950B/950E, 966C, 966D, 966F, 966F II, 966R, 970F, D250B, D25...
4W2549 PUMP GP-FUEL INJECTION
16G, 245, 245B, 3406B, 621E, 623E, 627E, 824C, 825C, 826C, 980C, D40D, D8N, RR-250, SS-250
1276449 PUMP GP-FUEL PRM & WATER SEP
3114, 3116, 45, 527, 55, 554, 574, 928G, 938F, 938G, 950F, 950F II, 950G, 960F, 962G, BG-225C, CB-634, CB-634C, CB-634D, CS-531C, CS-533C, CS-563C, CS-563D, CS-573C, CS-583C, CS-583D, D3G, D4G, D5G, D...
1077732 PUMP GP-FUEL INJECTION
120H, 120H ES, 120H NA, 135H, 135H NA, 3114, 3116, 320B, 322B, 322B L, 322B LN, 322C, 322C FM, 325B, 325B L, 446B, 446D, 539, 561M, 613C II, 924F, 928G, 938F, 938G, 950F, 950F II, 953C, 963B, 963C, AP...
6N4437 PUMP GP-FUEL TRANSFER
16G, 245, 3406, 621, 621B, 623B, 824C, 825C, 826C, 980C, 983B
7N1185 PUMP GP-FUEL INJECTION
3408, 3412, 988B, D8L, D9L
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