Capacity40–150 gallons (depending on configuration)
Pressure Rating3,600 PSIG
Gas ServiceCNG, RNG
Previous ServiceCNG fuel systems for heavy-duty trucks and Class 8 applications
LocationWaxahachie, TX, United States
Stock #GE4S-1001
Description
Available for sale are 37 pre-owned CNG fuel systems featuring Type 4 composite carbon fiber tanks rated at 3600 PSI, all DOT certified for on-road use. These tank packages were originally installed on heavy-duty trucks and Class 8 applications, with manufacture dates between 2013 and 2016. Systems are available in back-of-cab and side-mount configurations ranging from 40 to 150 gallons depending on model. Manufacturers include Hexagon/Lincoln, Agility Fuel Systems, and Quantum Fuel Systems.
Technical Specifications & Options:
Manufacturers: Hexagon / Lincoln, Agility Fuel Systems, Quantum Fuel Systems
Pressure Rating: 3600 PSI
Tank Type: Type 4 Composite (Carbon Fiber)
Mounting Configurations: Back-of-Cab & Side-Mount Options Available
Manufacture Years: 2013–2016
Remaining Life: ~10+ Years (20-Year Life Expectancy)
Common Configurations:
CNGT 101 – Agility Fuel System (Back-of-Cab): 150 Gallons
3x Type 4 Tanks (26x36, 40 Gallons Each) + 1x Type 4 Tank (21x36, 30 Gallons)
CNGT 102 – Quantum Technologies (Back-of-Cab): 135 Gallons
3x Type 4 Tanks (26x72, 35 Gallons Each)
CNGT 104 – Agility Fuel System (Back-of-Cab): 120 Gallons
3x Type 4 Tanks (26x86, 40 Gallons Each)
CNGT 108 – Agility Fuel System (Side-Mount): 40 Gallons
1x Type 4 Tank (26x86)
All tank systems have been visually inspected and show no damage or issues. Recertification for three years can be arranged for an additional $100 per tank prior to delivery. Some systems may have minor components missing, but we have documentation describing each unit and can provide an operational guarantee upon request.
These tank packages are ideal for tank replacements, CNG/RNG pilot programs, dual-fuel conversions, and fleet retrofits. They can be installed on virtually any on-road or off-road vehicle.
Condition:
Pre-owned — priced to sell as component packages. Multiple-unit purchase discounts available.
For more technical info visit:
https://www.qtww.com/product/q-rail-cng-fuel-system/
https://www.qtww.com/product/q-cab-cng-fuel-system/
https://hexagonagility.com/solutions/truck/back-of-cab
Questions buyers ask
Is this ASME or DOT rated, and what does that allow me to do with it?
These are DOT-certified Type 4 composite tanks originally installed for on-road CNG fuel service. DOT certification allows their use on highway vehicles and mobile applications, while ASME vessels are typically stationary and installed at fixed facilities. All units in this lot are confirmed DOT certified for on-road use.
What is the MAWP and capacity at service pressure?
The pressure rating is 3,600 PSIG across all tanks. Capacity varies by configuration: CNGT 101 systems are 150 gallons, CNGT 102 are 135 gallons, CNGT 104 are 120 gallons, and CNGT 108 side-mount units are 40 gallons. Individual tank capacities within each system range from 30 to 40 gallons depending on cylinder dimensions.
What is the requalification or inspection status?
All units have been visually inspected with no damage or issues reported. Manufacture dates are between 2013 and 2016, and the seller states approximately 10+ years of remaining service life based on the typical 20-year life expectancy for Type 4 composite CNG cylinders. Three-year recertification can be arranged prior to delivery; confirm current certification status and ask for documentation on the last hydrostatic or visual inspection for any units you're considering.
What should I inspect before putting it into service?
Verify the DOT certification labels are intact and legible, and check that manufacture and expiration dates meet your operating requirements. Inspect the composite overwrap for abrasion, impact damage, cuts, or UV degradation, particularly at mounting brackets and wear points. Check all valves, pressure relief devices, piping, and fittings for corrosion or damage—the listing notes some systems may have minor components missing, so confirm completeness against the documentation the seller has for each unit.
General guidance for this type of equipment. Ask about this specific unit in your inquiry — the seller answers directly.
Inspection, shipping & payment
Inspection
Pre-purchase inspections are welcome during normal business hours by appointment arranged in advance. We can provide complimentary transportation from DFW Airport and back if you would like to send someone to see the equipment in person. We can also walk through the item over a video call for domestic or international buyers. We are on US Central Time.
Shipping and loading
The equipment is located at our yard south of Dallas, Texas. We can assist with shipping arrangements.
Loading is provided at no charge for equipment under 15,000 lb when scheduled in advance. Equipment over 15,000 lb requires a crane, which is arranged and paid for by the buyer.
Payment
Payment in full is required FOB our yard in South Dallas. A verifiable cashier's check is accepted for collection in person. For release to a third-party shipper we require a wire transfer cleared in our account before the equipment leaves the yard.
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