Product Overview
The 3408421X fuel pump solenoid valve is an essential electromagnetic control part matched with heavy-duty diesel engine fuel pumps. It relies on electromagnetic driving to open and close the fuel oil circuit, realizing engine startup fuel supply and shutdown fuel cut-off functions. It effectively solves common faults such as difficult starting, engine stalling and unstable fuel delivery caused by aging original control valves, widely used in logistics tractors, dump trucks and engineering machinery equipped with diesel power systems.
Core Advantages
High-purity enameled wire winding coil, stable magnetic force output, sensitive opening and closing response, no delay during startup and shutdown.
Hardened alloy valve core and sealing assembly, excellent wear resistance and oil corrosion resistance, avoid internal leakage leading to insufficient power.
High temperature resistant plastic and metal integrated shell, can work stably for a long time under engine high temperature environment without deformation or failure.
Multi-layer high elastic sealing ring design, block fuel leakage, reduce fuel waste and avoid safety hazards caused by oil seepage.
Standard thread and mounting interface size, plug-and-play installation without cutting or modifying pipelines, greatly shorten maintenance time.
Strict aging, sealing and switching cycle tests before delivery, low failure rate and long service life for long-distance heavy load transportation.
Surface anti-rust treatment for metal connectors, resist erosion of diesel, muddy water and dust in complex construction and mountain road environments.
Basic Product Parameters
Part Number: 3408421X
Product Name: Fuel Pump Solenoid Valve
Main Function: Control fuel supply and fuel cut-off of diesel fuel pump
Applicable Equipment: Heavy duty diesel commercial trucks, construction machinery
Core Material: Alloy valve core + high temperature resistant coil + oil-proof sealing rubber
Working Environment: -30℃ ~ +120℃ engine compartment
Installation Way: Direct bolt-on mounting with matching fuel pump
Package: Neutral shockproof export carton, single individual packaging with anti-rust protection
Application Scenarios
Suitable replacement parts for various heavy diesel trucks, engineering vehicles and generator sets. Widely used in urban logistics transportation, mountain long-distance haulage, construction site operation and outdoor high-temperature working conditions. It keeps stable fuel circuit control under full load, climbing and idle operation.
Purchase Reminder
Please confirm your engine model and part number 3408421X before placing orders to ensure perfect matching. We support bulk wholesale for global auto parts distributors and fleet maintenance stations, with sufficient stock and competitive wholesale prices. Online technical guidance is available for installation problems after purchase.
