PUMP GP-UNIT INJECTOR HYD 3840677 - Caterpillar



3840677 PUMP GP-UNIT INJECTOR HYD Caterpillar parts 324D, 324D FM, 324D FM LL, 324D L, 325D FM, 325D FM LL, 325D L, 326D L, 328D LCR, 329D, 329D L, 330D L, 330D MH, 336D, 336D L, 336D2, 336D2 L, 340D L, 340D2 L, 950H, 962H, 973D, AP-1055D, BG-2455D, BG...
Rating:
94
Alternative (cross code) number:
CA3840677
384-0677
3840677
Caterpillar 3840677 PUMP GP-UNIT INJECTOR HYD
Weight: 25 pounds 11 kg.

Buy PUMP GP-UNIT INJECTOR HYD 3840677 Caterpillar genuine, new aftermarket tractor parts with delivery
ASPHALT PAVER, WHEEL LOADER,

Related part:
3840677  PUMP GP-INJECTOR  20R1635  R

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$1,482.94

17 Dec 2025

CN: XiXianXinQuKong
384-0677 3840677 20R-1635 Fuel Injection Pump,Compatible With Caterpillar CAT C7 C9 Engine 324D 325D 326D 328D 329D 330D 336D 336D2 340D Excavator 950H 962H 973D Loader
X psblty 384-0677 3840677 20R-1635 Fuel Injection Pump,Compatible With Caterpillar CAT C7 C9 Engine 324D 325D 326D 328D 329D 330D 336D 336D2 340D Excavator 950H 962H 973D Loader || Fuel Pressure Control: Precisely adjust fuel output pressure to match different equipment operating conditions, ensuring stable fuel supply || Injection Timing Synchronization: Synchronize with engine working rhythm to ensure precise fuel injection timing, meeting combustion needs || Installation Size Adaptation: Adopt interface size design corresponding to equipment for direct assembly, reducing adjustment steps || Stable Flow Output: Balanced control of fuel delivery flow to adapt to equipment load changes, maintaining smooth operation
$1,450.66

17 Dec 2025

CN: oiasdfhjdg
Fuel Injection Pump 384-0677 3190678 3840677 Compatible with CAT C7 C9 Excavator E330D
oiasdfhjdg Product Name:Power Steering Gear Rack || Part Number:384-0677 3190678 3840677 || APPlication:Compatible with CAT C7 C9 Excavator E330D || 1.Please carefully compare the OE numbers before purchasing the product to match your original parts and avoid wasting your valuable time. || 2.Please ensure to provide us with the correct, accurate, and detailed delivery address and contact information
$1,535.25

15 Dec 2025

CN: hsuwk5261
Diesel Fuel Pump 319-0678 319-0677 319-0607 384-0677 Compatible With Caterpillar CAT C7 C9 324D 325D 326D 328D 329D 330D 336D 336D2 340D Excavator 950H 962H 973D Loader
SWKKAIEO [C7/C9 Engine & Multi-Machine Exact Fit]:Tailored exclusively for C7/C9 engines and 324D-340D excavators, 950H-973D loaders, this diesel fuel pump matches OE parts 319-0678, 319-0677, 319-0607, 384-0677 perfectly. It aligns with the engine’s mounting points, fuel lines, and ECU connectors—no modifications to construction equipment systems needed, ensuring seamless integration with excavators/loaders in job sites. || [High-Pressure 供油 for Heavy-Duty Digging/Loading]:Delivers stable fuel pressure (up to 28,000 psi) to C7/C9 engines, optimizing combustion for maximum torque—critical for 329D/336D excavators digging through hard soil or 973D loaders lifting heavy aggregates. It avoids pressure drops during high-load operations, preventing engine lag that could delay construction deadlines. || [Job Site-Durable Construction]:Housing is made of heat-treated cast iron with an anti-corrosion zinc coating, resisting damage from construction debris, hydraulic fluid splatters, and high under-hood temperatures (up to 165°C) common in excavator/loader use. Internal components use chrome-plated plungers and ceramic seals, extending service life to over 2,200 operating hours—even in dusty/muddy job sites. || [OE-Grade Compatibility with Equipment ECUs]:Meets the same quality standards as original fuel pumps for C7/C9 engines and 324D-340D/950H-973D machines, ensuring full compatibility with the equipment’s electronic control system. It prevents error codes (e.g., fuel pressure faults) or sudden shutdowns—critical for construction teams relying on machinery for daily productivity. || [Fuel Efficiency to Cut Operation Costs]:Equipped with a precision fuel metering system that reduces diesel waste by 5-7% compared to generic pumps. For fleets of 330D/336D2 excavators or 962H loaders, this translates to significant savings on fuel expenses over months of continuous job site use.
Number on catalog scheme: 2
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Compatible equipment models: 3840677:

ASPHALT PAVER  AP-1055D   BG-2455D   BG-260D  
INDUSTRIAL ENGINE  C7   C9.3  
INTEGRATED TOOLCARRIER  IT62H  
MOBILE HYD POWER UNIT  329D L   336D L  
TRACK LOADER  973D  
WHEEL LOADER  950H   962H   Caterpillar

Caterpillar parts catalog:

Caterpillar parts catalog
C7 Industrial Engine JTF00001-UP
AP-1000D, BG-260D Asphalt Paver BPW00001-UP (MACHINE) POWERED BY C-7 Engine
AP-1055D, BG-2455D Mobil Track Asphalt Paver BXW00001-UP (MACHINE) POWERED BY C7 Engine
AP-1055D, BG-2455D Steel Track Asphalt Paver A6P00001-UP (MACHINE) POWERED BY C7 Engine
C7 Industrial Engine JTF00001-UP
C7 Caterpillar Engine For 573 Wheel Feller Buncher 57300001-UP (MACHINE) POWERED BY C7 Engine
330D & 330D L Excavators EDX00001-UP (MACHINE) POWERED BY C9 Engine
330D Material Handler (HCR & FCR) C5K00001-UP (MACHINE) POWERED BY C9 Engine
325D Material Handler C4H00001-UP (MACHINE) POWERED BY C-7 Engine
324D FM JKR00001-UP (MACHINE) POWERED BY C7 Engine
324D FM Forest Swing Machine JLS00001-UP (MACHINE) POWERED BY C7 Engine
325D Forest Swing Machine General Forestry Application High Wide Undercarriage C7K00001-UP (MACHINE) POWERED BY C7 Engine
325D Forest Swing Machine Butt-N-Top Log Loader High Wide Undercarriage C8L00001-UP (MACHINE) POWERED BY C7 Engine
325D Forest Swing Machine Butt-N-Top Log Loader C9M00001-UP (MACHINE) POWERED BY C7 Engine
330D L Excavators B6H00001-UP (MACHINE) POWERED BY C9 Engine
324D & 324D L Excavators JZR00001-UP (MACHINE) POWERED BY C7 Engine
336D L Excavator J2F00001-UP (MACHINE) POWERED BY C9 Engine
329D & 329D L Excavators BYS00001-UP (MACHINE) POWERED BY C7 Engine
336D & 336D L Excavators KKT00001-UP (MACHINE) POWERED BY C9 Engine
336D & 336D L Excavators JBT00001-UP (MACHINE) POWERED BY C9 Engine
336D L Excavators M4T00001-UP (MACHINE) POWERED BY C9 Engine
336D & 336D L Excavators PGW00001-UP (MACHINE) POWERED BY C9 Engine
340D L Excavator JTN00001-UP (MACHINE) POWERED BY C9 Engine
336D L Excavator MDS00001-UP (MACHINE) POWERED BY C9 Engine
336D L Excavator ZML00001-UP (MACHINE) POWERED BY C9 Engine
336D L Mobile Hydraulic Power Unit L5X00001-UP (MACHINE) POWERED BY C9 Engine
336D L Mobile Hydraulic Power Unit J6D00001-UP (MACHINE) POWERED BY C9 Engine
336D L Mobile Hydraulic Power Unit JRX00001-UP (MACHINE) POWERED BY C9 Engine
329D L Mobile Hydraulic Power Unit J8D00001-UP (MACHINE) POWERED BY C7 Engine
326D L Excavator PJM00001-UP (MACHINE) POWERED BY C7 Engine
336D2 & 336D2 L Excavators TLY00001-UP (MACHINE) POWERED BY C9 Engine
336D2 & 336D2 L Excavators EFT00001-UP (MACHINE) POWERED BY C9 Engine
336D2 & 336D2 L Excavators WDC00001-UP (MACHINE) POWERED BY C9 Engine
336D2 L Excavator ZCT00001-UP (MACHINE) POWERED BY C9 Engine
340D2 L Excavator HHK00001-UP (MACHINE) POWERED BY C9 Engine
336D2 XE &336D2 LXE Excavators MFA00001-UP (MACHINE) POWERED BY C9 Engine
336D2 GC Excavator NBN00001-UP (MACHINE) POWERED BY C9 Engine
340D2 L Mobile Hydraulic Power Unit DC800001-UP (MACHINE) POWERED BY C9 Engine
336D2 L Excavator LAM00001-UP (MACHINE) POWERED BY C9 Engine
950H Wheel Loader K5K00001-UP (MACHINE) POWERED BY C7 Engine
962H Wheel Loader K6K00001-UP (MACHINE) POWERED BY C7 Engine
950H PhII Wheel Loader K5K01000-UP (MACHINE) POWERED BY C7 Engine
962H PhII Wheel Loader K6K01000-UP (MACHINE) POWERED BY C7 Engine
973D TRACK-TYPE LOADER LCP00001-UP (MACHINE) POWERED BY C9 Engine


Information:

(1) Diameter of drive shaft (new) ... 22.217 0.005 mm (.8747 .0002 in.) Bore in bearings for drive shaft (new) ... 22.258 0.008 mm (.8763 .0003 in.)Diameter of idler shaft (new) ... 22.217 0.005 mm (.8747 .0002 in.)Bore in bearings for idler shaft (new) ... 22.258 0.008 mm (.8763 .0003 in.)(2) Length of gears (new) ... 79.375 0.025 mm (3.1250 .0010 in.) Depth of bores for gears (new) ... 79.502 0.020 mm (3.1300 .0008 in.)(3) 2S2760 Spring (oil pressure relief): Length under test force ... 117.9 mm (4.64 in.)Test force ... 490 27 N (110 6 lb.)Free length after test ... 152.9 mm (6.02 in.)Outside diameter ... 27.00 mm (1.063 in.) Low Speed oil pump arrangement does not use spacer behind pressure relief spring.
Pump Cover
Pump Body(4) Bearing junction.(5) Position of bearing junction from the centerline through bearing bores ... 30° 15°Install bearings so they are even with outside of pump body and even with FACE A of pump cover.
Earlier
Later

Parts pump Caterpillar catalog:

2304176 PUMP GP-METERING
950G II, 950H, 962G II, 962H, 966G II, 966H, 972G II, 972H, 988H, IT62G II, IT62H
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,...
1898777 PUMP GP-ENGINE OIL
120H, 120H ES, 120H NA, 120K, 120K 2, 12K, 12M, 135H, 135H NA, 140G, 140K, 140K 2, 140M, 160K, 30/30, 3116, 3126, 3126B, 3126E, 320B, 322B L, 322B LN, 322C, 322C FM, 324D, 324D FM, 324D FM LL, 324D L,...
2105522 PUMP AS-ENGINE OIL
12H, 140M, 160M, 2290, 2390, 2391, 2491, 2590, 330C, 330C FM, 330C L, 330C MH, 330D, 330D FM, 330D L, 330D LN, 330D MH, 336D, 336D L, 336D LN, 511, 521, 522, 532, 541, 551, 552, 627G, 637D, 637E, 637G...
3318905 PUMP AS-ENGINE OIL
12H, 140M, 140M 2, 160M, 160M 2, 2290, 2390, 330C, 330C L, 330D, 330D FM, 330D L, 330D MH, 336D, 336D L, 336D LN, 336D2, 336D2 L, 340D L, 340D2 L, 511, 521, 521B, 522, 522B, 532, 541, 541 2, 552, 552 ...
1782357 PUMP GP-FUEL TRANSFER
324D, 324D FM, 324D FM LL, 324D L, 324D LN, 325D, 325D FM, 325D FM LL, 325D L, 325D MH, 328D LCR, 329D L, 330C, 330C L, 330D, 330D FM, 330D L, 330D LN, 330D MH, 336D, 336D L, 584, 627G, 637D, 637G, 81...
1832823 PUMP AS-FUEL PRIMING
120H, 120H NA, 135H, 135H NA, 3114, 3116, 320B, 320D GC, 320D L, 322B L, 322B LN, 322C, 322C FM, 323D L, 324D, 324D L, 324D LN, 325B L, 325C, 325D, 325D L, 326D L, 328D LCR, 329D, 329D L, 329D LN, 330...
1593139 PUMP AS-WATER
3116, 3126, 3126B, 3126E, 322C, 322C FM, 325C, 325C FM, 328D LCR, 329D L, 570B, 580B, 962G II, C7, M325C MH
2364420 PUMP AS-WATER
120K, 12K, 140K, 140K 2, 160K, 3126B, 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, 329D, 329D L, 329D LN, 938G II, C7...
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, ...
1262016 PUMP GP-GEAR
318C, 319C, 320C, 320C FM, 320C L, 320D, 320D FM, 320D FM RR, 320D GC, 320D L, 320D LN, 320D LRR, 320D RR, 321C, 321D LCR, 322C, 322C FM, 323D L, 323D LN, 323D SA, 324D, 324D FM, 324D FM LL, 324D L, 3...
3496093 PUMP GP-METERING
950H, 950K, 962H, 962K, 966H, 972H, 986H, IT62H