The Fill-Rite NX25-DDCNB-AA is a 12/24v dc 25 gpm fuel transfer pump with automatic nozzle diesel built for mobile refueling. It moves fuel up to 25 GPM on 24V DC power and is built with Fill-Rite's cast-iron, continuous-duty design. It is not for use with DEF. Built by Fill-Rite in the USA and backed by a Limited Warranty.
Watch Fill-Rite's official product overview:
Features
25 GPM Fuel Transfer On 24V DC Power Moves fuel where the work is, so you can refuel equipment off a tank or truck without shore power.
Cast-Iron, Continuous-Duty Build A rugged cast-iron housing and Fill-Rite rotary-vane pump technology are built for a 30-minute-on / 30-minute-off duty cycle and years of hard use.
Self-Priming Design The pump primes itself, so it draws fuel fast without babysitting.
Handles The Fuels You Use Diesel. Not for use with DEF.
Specifications
Max Flow Rate: 25 GPM
Power Type: 12-24V DC
Compatible Fluids: Diesel
Duty Cycle: 30 min on / 30 min off
Country of Origin: USA
Installation
Type: Thread-on bung mount · Difficulty: Moderate DIY
Thread the pump onto a tank bung, fit the suction pipe to your tank depth, and connect power per the manual. Attach the discharge hose and nozzle, prime, and you are ready to pump. Follow the included owner's manual for exact setup.
Watch Fill-Rite's official installation walkthrough:
Warranty, Shipping & Returns
Warranty. Fill-Rite backs this pump with a tiered Limited Warranty against defects in materials and workmanship: lifetime on the pump castings (excluding paint and corrosion), 5 years on the motor and associated components, 2 years on wearable components, and 1 year on included accessories. It applies to the original purchaser and does not cover misuse, neglect, accident, or improper installation.
Free shipping. This item ships free to the lower 48 states. In-stock orders placed by 2 PM ET, Monday through Friday, typically ship the same business day and arrive in 3 to 5 business days.
Inspect on delivery. Please inspect the shipment on delivery. If anything is damaged, note it on the delivery receipt and contact us right away.
Returns. Unused items in their original packaging can be returned within 30 days of delivery. If an item arrives damaged, defective or wrong, return shipping is on us. See our Returns & Refunds Policy, or email support@prestigetruck.com with any question.
About Fill-Rite
Fill-Rite has been building fuel transfer equipment in Fort Wayne, Indiana since 1957. Now a Tuthill brand, it earned its reputation the hard way, by making cast-iron rotary-vane pumps that stand up to continuous, real-world duty on fleets, farms, construction sites, and equipment yards across the country.
Today Fill-Rite makes a complete fuel-handling lineup, from 12-volt and 24-volt DC pumps to 115-volt and 230-volt AC pumps, hand pumps, flow meters, nozzles, hoses, and filtration. Whatever you are moving and however you power it, the parts are engineered to work together as a system.
That focus is why Fill-Rite is the name so many operators specify by default: durable where it counts, simple to service, and backed by a Limited Warranty. When fueling your own equipment is part of the job, it is the brand you buy once.
Authorized Fill-Rite dealer. Prestige Truck is an authorized dealer of Fill-Rite, so every pump, meter and accessory you buy is 100% genuine and factory-new, covered by the full Fill-Rite manufacturer warranty, and backed by our own US-based support team.
See it on a truck
NX25 Series Full Rebuild Kit Installation
Fill-Rite's official walkthrough for the NX25 Series full rebuild kit, KIT321RK. Fill-Rite lists the KIT321 parts for the NX3200 series, which is the platform behind these nextec pumps.
The steps run the whole rebuild: disassembling the rotor and shaft seal, replacing the shaft seal with KIT320SL, replacing the rotor, rotor key, vanes and cover gasket with KIT321RG, and disassembling and replacing the bypass valve with KIT321BV.
NX25 Rotor And Vane Replacement
Fill-Rite's official walkthrough for the NX25 rotor and vane replacement kit, KIT321RG.
The steps cover disassembling the rotor assembly and replacing the rotor, rotor key, vanes, and cover gasket. This is the wear item that usually explains a pump that has lost flow.
NX25 Shaft Seal Kit Installation
Fill-Rite's official walkthrough for the NX25 Series shaft seal kit, KIT320SL, covering the seal that keeps fluid out of the motor end of the pump.
The steps cover disassembling the rotor and shaft seal, replacing the seal, and reinstalling the rotor, rotor key, vanes, and cover gasket.
NX25 Series Full Rebuild Kit Installation
Fill-Rite's official walkthrough for the NX25 Series full rebuild kit, KIT321RK. Fill-Rite lists the KIT321 parts for the NX3200 series, which is the platform behind these nextec pumps.
The steps run the whole rebuild: disassembling the rotor and shaft seal, replacing the shaft seal with KIT320SL, replacing the rotor, rotor key, vanes and cover gasket with KIT321RG, and disassembling and replacing the bypass valve with KIT321BV.
NX25 Rotor And Vane Replacement
Fill-Rite's official walkthrough for the NX25 rotor and vane replacement kit, KIT321RG.
The steps cover disassembling the rotor assembly and replacing the rotor, rotor key, vanes, and cover gasket. This is the wear item that usually explains a pump that has lost flow.
NX25 Shaft Seal Kit Installation
Fill-Rite's official walkthrough for the NX25 Series shaft seal kit, KIT320SL, covering the seal that keeps fluid out of the motor end of the pump.
The steps cover disassembling the rotor and shaft seal, replacing the seal, and reinstalling the rotor, rotor key, vanes, and cover gasket.
Frequently Asked Questions
Straight answers on specs, fit and support
What fuels can it pump?
Diesel. It is not compatible with DEF, water, or high-concentration ethanol/methanol.
How is it powered?
24V DC. Connect it per the included owner's manual.
How fast does it transfer fuel?
25 GPM, depending on hose, lift, and fluid.
Does it need priming?
No manual priming needed. The pump is self-priming, so it pulls fuel from tanks and drums on its own.
Fill-Rite builds its fuel transfer equipment in Fort Wayne, Indiana, USA.
What our customers say
4.8 · 6 reviews
5★54★13★02★01★0
Storm P.
07/16/2026
easy (relatively) to set up and use for fluid transfer ...
A beast of a pump, easy (relatively) to set up and use for fluid transfer from tank to tank. The pump feels like it was built to last, a ton of metal - either cast or steel. The hose connections feel very tight and built to last.
D. M.
07/13/2026
Amazed in IA
"Continuous duty" says it all. this has already saved us hours of time and effort despite how hesitant we were to accept it right out of the box. A lot of small businesses and farms would benefit from the investment here.
Reajr
07/06/2026
Works as advertised
Performed as advertised. Arrived as advertised. Good experience.
Lee
07/06/2026
Quality unit
Best pump I have had yet. This mounts right up to my tank in the back of my truck. I am able to pump diesel fuel all day long into tractors, and other heavy equipment without even a hiccup.This is a high quality unit and will last under heavy use for many years. If you are on the fence about buying it don't be just get it you won't be disappointed
Anonymous
07/25/2025
Product works great for fueling all our equipment
Mary A.
07/11/2026
Labor saver at several points
With the addition of a tank.and cart, this pump has changed several aspects of doing jobs on a farm. The best part is filling the tractor without having to lift a gas can to shoulder height. Best of all, the pump works as expected.