This high-performance CNG & LPG rail injector acts as the core spare part for sequential-injection dual-fuel vehicle systems. It precisely controls gas supply volume delivered to each engine cylinder and maintains stable operation under full vehicle load conditions. Multiple coil resistance versions including 1Ω, 3Ω and 6Ω are available for matching most mainstream autogas ECUs. This gas injector can work together with complete CNG LPG conversion kits and AT12 pressure reducer for petrol-to-gas vehicle retrofit projects.
As direct-replacement sequential injection nozzle rail spare parts, these injectors are widely adopted for passenger cars, taxis and fleet vehicles running on CNG or LPG dual-fuel mode. We support factory bulk wholesale for global distributors, repair workshops and gas conversion project partners.


Full Technical Specifications
| Item Name | CNG LPG Gas Injector Rail |
| Appearance Color | Black + Gray |
| Applicable Vehicles | 4/6/8 Cylinder CNG/LPG Sequential Injection Cars |
| Normal Working Pressure | 0.5-2.5bar |
| Max Bearing Pressure | 4.5bar |
| Ultimate Pressure Resistance | 8bar |
| Rated Operating Voltage | DC 12V±10% |
| Coil Resistance Options | 1Ω / 3Ω / 6Ω |
| Operating Frequency | 150HZ |
| Factory Warranty | 1 Year |
Core Product Advantages
150HZ high-frequency response delivers accurate gas injection control and improves fuel combustion efficiency for dual-fuel engines
Multiple coil resistance choices (1Ω /3Ω /6Ω) to fit various brands of autogas ECU controllers on aftermarket market
Multi-layer sealed mechanical structure, great resistance against driving vibration and working pressure fluctuation
Wide pressure-bearing range, safe and reliable for heavy-usage taxi and long-distance fleet vehicles
Standardized interface layout, enables quick installation and direct replacement for gas modification workshops

System Matching Information
This CNG/LPG rail injector is designed to cooperate with autogas ECU, AT12 pressure reducer, gas filter, pressure sensor and related pipe fittings. If you encounter matching or installation problems in vehicle gas refitting process, please consult our technical support team for professional guidance.
Frequently Asked Questions
Q1: How do I select correct coil resistance for my rail injector?
A1: Coil resistance must match your autogas ECU driving parameters. Please confirm ECU requirement before ordering, we supply 1Ω,3Ω,6Ω versions for different controller brands.
Q2: Can this gas rail injector be used for taxi and fleet cars with high mileage?
A2: Yes. Multi-layer sealing and wide pressure-resistance design make it well-suited for taxis and fleet vehicles under heavy-duty continuous running conditions.
Q3: What symptoms indicate that rail injectors need cleaning or replacement?
A3: Unstable idle speed, power drop under gas mode, increased gas consumption or gas leakage are common signs. Regular cleaning for nozzles is recommended; replace injectors when internal components get permanently damaged.
Q4: Does this rail injector support cross-brand replacement for old gas conversion kits?
A4: It supports replacement for most sequential-type autogas systems, but you need to verify working voltage, resistance and mounting interface dimensions before installation.
Q5: What does the 1-year factory warranty cover?
A5: One-year warranty covers manufacturing defects. Damage caused by improper installation, bad gas quality contamination or external mechanical impact is not included in warranty scope.
Q6: Which pressure reducer is recommended to pair with this CNG LPG rail injector?
A6: It works perfectly with AT12 pressure reducer, also compatible with most mainstream CNG / LPG reducers in the autogas aftermarket.
Global Supply Service
Our CNG LPG rail injectors are exported to Latin America, Southeast Asia, South Asia, Middle East, Africa and Central Asia. We provide factory direct wholesale, bulk-order OEM support and technical consultation for autogas distributors and installers worldwide.

