Caterpillar C7 C9 C-9 Diesel Pump Assembly
System type: HEUI hydraulically driven electronically controlled unit pump (non-traditional mechanical pump/high pressure common rail)
Alias: fuel actuator pump, high pressure oil pump, diesel injection pump assembly
Classification :
Keywords :
Caterpillar C7 C9 C-9 Diesel Pump Assembly
PRODUCT DETAILS
1. Basic information
Applicable engines: Carter C7, C9, C-9 (ACERT/non-ACERT)
System type: HEUI hydraulically driven electronically controlled unit pump (non-traditional mechanical pump/high pressure common rail)
Alias: fuel actuator pump, high pressure oil pump, diesel injection pump assembly
2. Core OEM models
319-0677 (Kingpin C7/C9 universal)
319-0678
254-4357 / 254-4358
10R-8897/10R-8899
511-7975 (new replacement number)
3. Applicable models (excavator/loader)
Carter 324D, 325D, 329D, 330D, 330C, 336D
Carter 950H, 962H, 966H loaders
140M grader, drilling rig, industrial unit, ship power
4. Assembly includes (complete pump body)
Pump housing, HEUI hydraulic drive mechanism, plunger/delivery valve group
Gear transmission mechanism, solenoid valve, sensor, actuator
Internal oil passages, seals, bearings, gears, pressure regulating valves
Not included: external wiring harness, fuel injector, fuel filter, fuel pipe, starter/generator
5. Technical parameters
Working pressure: 20–30MPa
Driving mode: engine gear drive + hydraulic oil actuation
Control method: ECM electronic control
Weight: approx. 18–22kg
Material: cast aluminum/cast iron shell, carbide plunger
6. Common faults
Difficulty starting/stalling, insufficient power: internal wear, insufficient pressure, stuck solenoid valve
Black smoke/high fuel consumption: inaccurate metering, plunger leakage, control failure
Abnormal noise and large vibration: bearing/gear wear, internal plunger stuck
Leakage: oil seal aging, joint seal failure
7. Maintenance and replacement points
Cat ET detector must be used for matching, calibration and exhaust
After replacement: exhaust air, measure pressure, and run in at idle speed
It is recommended to replace simultaneously: diesel filter element, oil filter element, sealing ring
Original/remanufactured warranty; repairs include oil seals, O-rings, bearings, plungers, etc.
QUALITY INSPECTION
Exquisitely manufactured with original technology and strict full-process quality inspection. High temperature and heavy load resistant, powerful, fuel-saving, stable and durable. Brand new genuine with complete certificates, direct factory supply, reliable warranty and professional after-sales technical support.
PACKAGING AND SHIPPING
Our products are well sold in China and exported to many countries, such as South Korea, Japan, Russia, Germany, Britain, Austria, Czech Republic, Hungary, Netherlands, Slovenia, Bulgaria, Egypt, Saudi Arabia, Iran, Kuwait, UAE, Turkey, Israel, Syria, Lebanon, Jordan, Yemen, Cyprus, Philippines, Vietnam, and Malaysia...
FACTORY APPEARANCE
For 18 years, we have focused on one mission:
to help our partners build core competitiveness and operate with complete peace of mind.
We are not middlemen.
With in-house inventory, direct sourcing from factories, and tiered pricing, we eliminate redundant middle layers, pass on greater profit margins to customers, and take stable delivery as our lifeline.
We understand well:
Your customers trust you because you never make mistakes.
Our mission is to make sure you stay flawless.
We take full responsibility for quality issues.
We guarantee stable supply.
We fight for every minute in delivery.
Our promise remains unchanged:
You focus on expanding the market.
Supply, quality, delivery, and after-sales support – leave everything to us.
CUSTOMER REVIEWS
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WHY CHOOSE US
Powerful and Fuel-Efficient
The original factory-engineered engine delivers ample power and strong acceleration, stable idling speed, and low fuel consumption, making it less prone to failure during long-term heavy-duty operation.
Precise Hydraulic Control
The well-balanced hydraulic system provides smooth and sensitive operation, coordinated complex operations, rapid response, and significantly improved work efficiency.
Robust and Durable Chassis
The thickened, wear-resistant chassis offers excellent load-bearing capacity and stable movement, adapting to various complex road conditions, including muddy and mountainous terrain, and resisting wear and deformation.
Stable Quality and High Compatibility
All machines and accessories undergo rigorous quality inspection, adhering to high standards of craftsmanship. Highly compatible, they are ready to use immediately after installation, with a low failure rate and long service life.
FAQ
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