Description
Product Overview
The high-pressure oil pump operates continuously under high-temperature, high-pressure diesel medium and continuous vibration conditions. Various rubber seals inside it may harden, expand, and crack. Small valve cores and flow-limiting valves may wear out, causing oil leakage in the circuit and fuel seepage. This overhaul package covers all sealing points of the oil pump's low-pressure intake chamber, high-pressure plunger chamber, drive shaft, and metering valve installation position. It also comes with easily worn small metal valve core components. After disassembling the oil pump, the entire set can be replaced to eliminate all leakage and abnormal oil pressure faults. It is suitable for maintenance of electric control common rail high-pressure oil pumps for light trucks, diesel pickup trucks, and small and medium-sized construction machinery.
Core Advantages of the Single Product
Multiple specifications of fluorine rubber seals, resistant to high and low temperatures of diesel fuel without aging
The entire set of sealing rings is made of oil-resistant fluorine rubber material, which can withstand wide temperature differences in the engine compartment, not swelling or hardening when soaked in diesel fuel for a long time, and maintain oil circuit sealing for a long time, preventing fuel leakage and low-pressure intake pressure relief.
Integrated frame main oil seal, long-term anti-leakage of the drive shaft
The matching thickened composite frame oil seal has multiple layers of sealing lips that fit the drive shaft of the oil pump, blocking the mutual leakage of engine oil and diesel, and avoiding dilution of engine oil and leakage from the outside of the oil pump.
Bronze precision guide valve core, wear-resistant and smooth without sticking
The bronze precisely machined guide valve core has a smooth surface and is wear-resistant. The reciprocating motion has no sticking, stabilizing the fuel flow rate of the oil circuit, improving the oil pump's pressure building speed, and eliminating idle oil pressure drift.
Full coverage of all points, one set to replace all without scattered purchases
It includes large-sized cavity O-rings, micro control valve sealing blue rings, wear-resistant buffer washers, plastic dust-proof plugs, and micro pressure relief threaded valves, covering all sealing points inside the oil pump. One set can be replaced to complete the repair, reducing multiple procurement costs.
Standardized unified dimensions, easy disassembly and assembly without gap
All sealing rings, valve cores, and oil seals have strict tolerance control of dimensions, precisely fitting the corresponding oil pump cavities and valve core positions. Assembly does not require trimming or sanding, and no leakage caused by assembly gap.
Complete set factory matching and calibration, high maintenance compatibility
Each set of accessories is uniformly matched with the size of the corresponding oil pump model. After packaging, a complete set of sealing components undergoes pressure testing before leaving the factory. After replacement, the oil pump can quickly restore its standard fuel supply and pressure holding performance. List of Accessories
Various-sized black large-sized cavity sealing O-rings in multiple specifications
Miniature blue control valve sealing ring
Beige wear-resistant buffer gasket
Composite frame main drive shaft oil seal 1 piece
Copper guide valve core 1 piece
Miniature metal pressure relief threaded valve 1 set
Multiple black plastic dust-proof sealing plugs Applicable scenarios
This product is suitable for light-duty freight trucks, diesel pickups, small passenger vehicles, medium and small wheeled construction machinery, and small diesel generator sets that are equipped with high-pressure common rail fuel supply systems. It is applicable for overall sealing maintenance and replacement of the high-pressure fuel pump of electric control common rail diesel engines in urban short-distance delivery, construction sites with high-temperature dust, and environments with diesel medium corrosion.
Product Basic Parameters
Product Name: 891869-VDO High-Pressure Fuel Pump Sealing Overhaul Kit
Part Number: 891869-VDO
Main Materials: Fluorine rubber sealing ring, composite skeleton oil seal, brass valve core, stainless steel micro valve, oil-resistant plastic plug
Structural Features: Complete set of multi-sized sealing components + matching small metal valve core wear parts, covering all sealing points of the fuel pump inside and outside
Application Conditions: High and low-pressure oil circuit sealing, engine compartment alternating cold and hot vibrations, diesel medium corrosion of various electric control common rail diesel high-pressure fuel pumps
Product Status: New complete set of sealing overhaul package, factory completed with sealing pressure-bearing, oil resistance, durability, and size matching full calibration and inspection
Packaging: Independent compartment sealed plastic boxes for separate packaging, various sealing rings and valve cores are isolated by zones, avoiding deformation due to compression, supporting single set retail and bulk purchase of the entire box, and compatible with cross-border small package logistics.
