Description
Product Overview
The fuel delivery pump is driven by the engine power and steadily delivers the low-pressure fuel from the fuel tank to the high-pressure common rail pump, providing a continuous fuel supply basis for the entire injection system. Under long-term conditions of diesel impurities erosion, internal gear wear, and pressure regulating valve sealing failure, issues such as reduced fuel supply flow, insufficient low-pressure oil pressure, oil path air intake, inability of the equipment to climb, failure of cold engine startups, frequent engine idling shutdowns, and intermittent fuel supply may occur. This product is an integrated finished gear fuel delivery pump. It undergoes comprehensive detection for flow, pressure, and sealing at the factory. The installation holes, drive shaft specifications, and oil path threaded interfaces are standardized. The entire machine can be directly installed on vehicles, suitable for the maintenance of diesel supply systems for heavy construction machinery and large power generation units.
Unique core advantages of this product
Integrated thickened cast steel pump body, resistant to vibration and less prone to cracking and leakage
The entire high-density cast steel is formed as a unit, with the outer wall strengthened and thickened. It can withstand long-term high-frequency vibrations from the engine and high-temperature engine compartment, and will not cause shell cracking or end face oil leakage. The internal oil pressure remains stable for a long time.
Top precision spline drive shaft, no slippage in power transmission
Multi-tooth progressive spline output shaft, hardened and quenched treatment, closely meshing with the power transmission components, stable transmission without slippage or loss of rotation, ensuring a continuous and constant fuel supply flow, and no attenuation under heavy-load conditions.
Side-mounted adjustable pressure threaded connector, precise control of low-pressure oil pressure
Side-mounted matching pressure regulating threaded connectors with identification, allowing for fine adjustment of fuel supply pressure according to different working conditions; the threaded sealing structure is tight, preventing oil path air intake and leakage, eliminating air resistance-induced starting difficulties.
Multiple working positions of uniform installation holes on the end face, compatible with alignment and less offset during assembly
The pump body end face is distributed with multiple pairs of symmetrical fixed installation holes, strong alignment compatibility, and uniform force after assembly, preventing single-sided inclination that causes seal pad compression and leakage, and facilitating disassembly and assembly operations.
Built-in high-precision gear transmission pair, uniform fuel supply with low loss
The internal paired ground alloy gears have precise meshing clearance, smooth fuel supply without pulse fluctuations, high tolerance to impurities, and extend the lifespan of the pump, reducing fuel supply deficiencies that cause power failures.
Factory-installed pressure calibration, reaching standard fuel supply parameters upon installation
The finished product is uniformly calibrated for low-pressure fuel supply pressure and flow, eliminating the need for on-site debugging. After replacement, it can quickly restore the engine's standard fuel supply performance, reducing maintenance and debugging time. Applicable scenarios
It is suitable for mining excavators with high-power diesel engines, heavy-duty loaders, long-distance heavy-duty freight trucks, and fixed high-power diesel generators. It is applicable to the replacement of the low-pressure fuel supply system of heavy-duty diesel engines in mining areas under conditions of 24-hour continuous full-load operation, high-temperature vibration of the engine compartment, and dusty and impure diesel environment.
Product Basic Parameters
Product Name: Low-pressure Fuel Delivery Gear Pump Assembly
Part Number: 3034221
Main Material: Thickened cast steel pump body, quenched alloy steel drive shaft, alloy gear pair
Structural Feature: Integrated cast steel pump body, top spline drive shaft, side-mounted pressure regulating threaded joint, end face multi-position installation holes, built-in gear delivery structure
Application Conditions: Continuous high-power fuel supply, high-temperature vibration of the engine compartment, outdoor dusty and impure diesel environment for heavy-duty diesel engine front-mounted fuel supply components
Product Status: New and complete fuel delivery pump assembly, factory completed with full set of machine calibration and testing for fuel flow, oil pressure stability, and sealing performance
Packaging: Single independent shock-proof paper box packaging, threaded joint and drive shaft equipped with dust protection plugs to prevent transportation impact and scratch of the precise structure, supporting single-piece retail, bulk purchase in cases, and compatible with cross-border small package / case logistics.
