This CNG & LPG accessory bag is a full-set fitting kit for automotive gas fuel injection conversion systems. It collects all commonly-used installation hardware including screws, multi-size hose clamps, cylinder coupling (bottle valve nut), sleeves, nuts, steel pipe brackets, elastic clamps and nylon cable ties. All components are pre-packed to simplify field installation for autogas modification workshops.
Different part quantities are configured for CNG 3-4 cylinder, CNG 6-cylinder and LPG 3-4-cylinder systems. The matching-oriented package avoids missing small parts during vehicle gas retrofit, guarantees stable connection of gas pipelines and reduces assembly preparation time for installers.



Main Components & Kit List
The accessory bag covers full-range mounting hardware for autogas injection projects. Part quantity varies according to engine cylinder configuration as shown below:
| Parts name | CNG system 3,4cyl | CNG system 6cyl | LPG system 3,4cyl |
| Cylinder coupling(bottle valve nut) | 1 | 1 | 1 |
| Floor joint | 1 | 1 | 1 |
| Hose clamp Ø25mm-Ø38mm | 2 | 2 | 4 |
| Single cone sleeve Ø6mm | 1 | 1 | 0 |
| Single cone nut | 1 | 1 | 0 |
| Steel pipe bracket | 10 | 10 | 10 |
| Tapping screw Ø12mm(5.5*17) | 13 | 13 | 13 |
| Elastic clamp Ø10.5mm | 12 | 15 | 12 |
| Elastic clamp Ø9mm | 1 | 1 | 2 |
| Hose clamp Ø8mm-Ø12mm | 4 | 4 | 0 |
| Hose clamp Ø10mm-Ø16mm | 6 | 10 | 6 |
| Hose clamp Ø16mm-Ø27mm | 0 | 0 | 4 |
Core Features
Pre-assembled accessory bag for CNG / LPG gas fuel injection conversion kits
Complete assortment: clamps, couplings, sleeves, nuts, brackets, screws and cable ties
Three versions available: CNG 3-4 cyl, CNG 6-cyl, LPG 3-4-cylinder systems
Multi-size hose clamps and elastic clamps fit different gas hose outer diameters
Standard cylinder coupling for bottle valve connection for gas cylinder installation
Convenient packing reduces preparation work for autogas installers and repair shops
Frequently Asked Questions
What is included inside the CNG LPG accessory bag?
The kit contains cylinder coupling, floor joint, various hose clamps, cone sleeves, nuts, steel pipe brackets, tapping screws, elastic clamps and nylon cable ties for autogas pipeline mounting.
Are there different versions for different engines?
Yes. Three configurations are offered: CNG for 3-4 cylinders, CNG for 6-cylinders and LPG for 3-4-cylinder vehicles, with adjusted part quantities for each system.
Can these fittings be used for sequential injection conversion kits?
Yes. This accessory bag is specially designed for gas fuel sequential injection conversion systems, covering most pipeline connection requirements during retrofit.
Why choose pre-packed autogas accessory bag?
It avoids missing small mounting hardware during installation, saves sorting time for modification workshops, and ensures complete matching for gas-conversion projects.
Do I still need extra spare parts besides this accessory bag?
This bag covers standard installation fasteners. According to specific vehicle chassis conditions, a small number of auxiliary fittings may be additionally prepared by installers.
Installation Reminder
All clamps, couplings and fasteners are used for high-pressure gas pipeline assembly. Please strictly follow autogas modification standards for tightening torque. Check clamp tightness regularly after vehicle conversion to prevent gas-leak risks.


