Standard Technologies manufactures premium direct-fill diesel tanks for RVs, work trailers, and equipment, offering 8- to 50-gallon capacities in durable 12-gauge aluminized steel for dependable performance.
Standard Technologies’ direct‑fill diesel tanks power RVs, work trailers, and equipment in 8–50 gal capacities. Each direct fill diesel tank is a rugged 12‑gauge steel fuel tank fabricated from aluminized steel and eligible for sale in all 50 states with no certification restrictions. Standard equipment includes a vented cap, spiral fuel gauge, draw tube, return fitting, and roll‑over valve. For an integrated diesel generator fuel system or a mobile diesel refueling system, optional packages add anti‑siphon draw tubes, carbon‑canister vapor control, long runs of CARB‑compliant fuel hose, and an 8‑GPM transfer pump with a UL hose and nozzle.

All versions of this fuel tank are eligible for sale in all 50 states.
No certification restrictions apply
| Description | Tank Dimensions (L×W×H) | Tank Only | Diesel Generator Fuel System | Diesel Refueling System | Diesel Generator / Refueling Combo System |
|---|---|---|---|---|---|
| 8 Gallon Direct Fill Tank – Diesel | 10” × 13” × 15” | ST-D0008-D | ST-D0008-DGS | ST-D0008-DRS | ST-D0008-DCS |
| 14 Gallon Direct Fill Tank – Diesel | 22” × 10” × 15” | ST-D0014-D | ST-D0014-DGS | ST-D0014-DRS | ST-D0014-DCS |
| 20 Gallon Direct Fill Tank – Diesel | 16” × 20” × 15” | ST-D0020-D | ST-D0020-DGS | ST-D0020-DRS | ST-D0020-DCS |
| 30 Gallon Direct Fill Tank – Diesel | 24” × 20” × 15” | ST-D0030-D | ST-D0030-DGS | ST-D0030-DRS | ST-D0030-DCS |
| 40 Gallon Direct Fill Tank – Diesel | 26” × 24” × 15” | ST-D0040-D | ST-D0040-DGS | ST-D0040-DRS | ST-D0040-DCS |
| 50 Gallon Direct Fill Tank – Diesel | 34” × 24” × 15” | ST-D0050-D | ST-D0050-DGS | ST-D0050-DRS | ST-D0050-DCS |
Direct Fill Tanks – Diesel Included Components:
Tank Only Includes:
- (1) Fuel Tank – Aluminized Steel, 12 Gauge
- (1) Vented Fuel Cap – Tethered
- (1) Spiral Fuel Gauge
- (1) Draw Tube w/ 5/16″ Hose Barb
- (1) Return Fitting w/ 5/16″ Hose Barb
- (1) Roll Over Valve
Diesel Generator / Refueling Combo System Includes:
- (1) Fuel Tank – Aluminized Steel, 12 Gauge
- (1) Vented Fuel Cap – Tethered
- (1) Spiral Fuel Gauge
- (1) Draw Tube with 1/2″ Anti-Siphon Hose Barb
- (1) Draw Tube with 5/16″ Hose Barb
- (1) Return Fitting with 5/16″ Hose Barb
- (1) Roll Over Valve
- (40 ft.) 5/16″ Fuel Hose CARB / Clamps
- (4 ft.) 1/4″ Fuel Hose CARB / Clamps
- (1) 12V 8 GPM Transfer Pump
- (4 ft.) 1/2″ Fuel Hose / Clamps
- (1) 3/4″ × 5.67″ UL Hose Assembly
- (1) 3/4″ Manual UL Nozzle
- (8 ft.) Power Cord
- Tank Mounting Hardware – Grade 8
Diesel Generator Fuel System Includes:
- (1) Fuel Tank – Aluminized Steel, 12 Gauge
- (1) Vented Fuel Cap – Tethered
- (1) Spiral Fuel Gauge
- (1) Draw Tube with 5/16″ Hose Barb
- (1) Return Fitting with 5/16″ Hose Barb
- (1) Roll Over Valve
- (40 ft.) 5/16″ Fuel Hose CARB / Clamps
- (4 ft.) 1/4″ Fuel Hose CARB / Clamps
- Tank Mounting Hardware – Grade 8
Diesel Refueling System Includes:
- (1) Fuel Tank – Aluminized Steel, 12 Gauge
- (1) Vented Fuel Cap – Tethered
- (1) Spiral Fuel Gauge
- (1) Draw Tube w/ 1/2″ Anti-Siphon Hose Barb
- (1) Roll Over Valve
- (1) 12V 8 GPM Transfer Pump
- (4 ft.) 1/2″ Fuel Hose / Clamps
- (4 ft.) 1/4″ Fuel Hose CARB / Clamp
- (1) 3/4″ × 5.67″ UL Hose Assembly
- (1) 3/4″ Manual UL Nozzle
- (8 ft.) Power Cord
- Tank Mounting Hardware – Grade 8
Industry-Leading Manufacturer of Fuel Tanks and Fuel System Components
Standard Technologies is a trusted leader in the design and manufacturing of aftermarket and OEM fuel tanks and fuel system components. Whether you need a standard fuel tank or a custom-engineered solution, our experienced engineering team delivers full technical support, precision design, and exceptional manufacturing expertise. We produce fuel tanks from a wide range of materials and components, ensuring every product meets the highest standards of efficiency, durability, and long-term performance—all while maintaining cost-effective production.
At Standard Technologies, we continually invest in our manufacturing facilities, advanced equipment, employee training, and quality certifications to ensure we remain at the forefront of fuel system innovation. Our commitment to excellence has made us the preferred OEM partner for fuel tank and fuel system component manufacturing across North America.
For more information on our fuel tanks and systems, contact us today



