XHQ-PTG 24V Fuel Shutoff Solenoid – Precision Engine Stop Control for Heavy-Duty Diesel Systems

1. Precision Fuel Shutoff for Engine Safety
The XHQ-PTG 24V Fuel Shutoff Solenoid is a heavy-duty electromagnetic component engineered to deliver reliable, immediate fuel cutoff for diesel engines operating on 24VDC systems. When energized, the solenoid retracts its plunger to keep the fuel valve open, enabling normal engine operation. Upon de-energization (triggered by a stop signal or power loss), the internal spring force rapidly extends the plunger to close the fuel valve, cutting off fuel flow and stopping the engine within seconds. This precision control prevents engine damage from runaway operation and ensures safe shutdown during emergencies, making it a critical safety component for diesel generators, construction machinery, and industrial engines.

2. Robust Construction for Harsh Environments
Built to withstand the demanding conditions of engine bays and remote power systems, the XHQ-PTG 24V features:
Heavy-Duty Coil: A high-temperature copper coil (rated for 24VDC operation) delivers consistent pulling force, even in extreme temperatures (-20°C to +85°C), ensuring reliable performance in cold climates and high-heat engine compartments.
Sealed Design: The solenoid body is fully sealed against dust, moisture, and oil, with a protective steel cable covering the plunger mechanism to prevent corrosion and debris ingress—critical for marine, agricultural, and construction applications.
Durable Mounting: A zinc-plated steel mounting bracket with pre-drilled holes ensures secure, vibration-resistant installation, eliminating the risk of loose connections during engine operation.
Integrated Terminal Block: A green terminal block at the top simplifies wiring connections, reducing installation time and minimizing the risk of wiring errors.



3. Universal Compatibility & Easy Installation
The XHQ-PTG 24V is designed for broad compatibility with a wide range of diesel engines and equipment models, including:
Engine Brands: Compatible with Cummins, Perkins, Yanmar, and other popular diesel engine manufacturers that use 24V control systems.
Equipment Applications: Ideal for diesel generators, excavators, loaders, tractors, and other heavy machinery requiring reliable fuel control.
Simple Installation: The solenoid comes with a pre-assembled linkage rod, mounting hardware, and integrated terminal block, reducing installation time and complexity. The 24VDC voltage rating matches most heavy-duty engine control systems, eliminating the need for additional voltage converters.



4. Quality Assurance & Compliance
Every XHQ-PTG 24V solenoid undergoes rigorous testing to ensure compliance with global quality and safety standards:
Performance Testing: Each unit is tested for pull force, response time, and durability, with a minimum lifespan of 10,000 cycles.
Material Certification: The coil, housing, and linkage components are manufactured from high-grade materials, with CE and ISO 9001 certification for quality assurance.
Warranty Coverage: Backed by a 1-year manufacturer warranty, the XHQ-PTG 24V provides peace of mind for operators and maintenance teams.

1. Standby Diesel Generators
The XHQ-PTG 24V is a critical component in standby generator systems, ensuring safe, automatic shutdown during grid restoration or fault conditions. Its reliable fuel cutoff prevents engine damage and ensures compliance with safety regulations for data centers, hospitals, and industrial facilities.



2. Construction & Heavy Machinery
Widely used in excavators, loaders, bulldozers, and other construction equipment, the solenoid provides instant fuel control, enabling quick stops in hazardous situations and reducing fuel waste during idle periods. Its robust construction withstands the vibration and debris of heavy-duty field operations.



3. Agricultural Equipment
In tractors, harvesters, and irrigation systems, the solenoid delivers precise fuel control, preventing engine damage from overheating or mechanical failure. Its sealed design protects against dust, moisture, and agricultural chemicals, ensuring reliable performance in field conditions.

4. Marine & Offshore Engines
The sealed, corrosion-resistant design of the XHQ-PTG 24V makes it ideal for marine diesel engines, where exposure to saltwater and high humidity demands durable, reliable components. It ensures safe shutdown for propulsion and auxiliary power systems on boats, ships, and offshore platforms.



5. OEM Replacement & Retrofit Projects
The XHQ-PTG 24V is a direct replacement for OEM fuel shutoff solenoids, offering a cost-effective solution for upgrading older engine systems. Its universal design and easy installation make it a popular choice for maintenance teams and retrofit projects.

The XHQ-PTG 24V Fuel Shutoff Solenoid is a reliable, durable, and versatile component that ensures safe, efficient operation of 24V diesel engines and equipment. Its precision fuel control, robust construction, and broad compatibility make it an essential safety component for a wide range of applications, from standby power systems to heavy-duty industrial machinery. Backed by rigorous quality testing and global compliance, the XHQ-PTG 24V provides operators with the confidence to rely on their engine systems, even in the most demanding environments.