The Fill-Rite FR4210H is a 12v dc 20 gpm fuel transfer pump with nozzle built for mobile refueling. It moves fuel up to 20 GPM on 12V 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
20 GPM Fuel Transfer On 12V 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, gasoline (up to E15), kerosene, biodiesel (up to B20), and mineral spirits. Not for use with DEF.
Specifications
Max Flow Rate: 20 GPM / 75 LPM
Power Type: 12V DC
Compatible Fluids: Diesel, Kerosene, Biodiesel up to B20, Gasoline up to E15, Mineral Spirits
Duty Cycle: 30 min on / 30 min off
Motor Power: 0.25 HP
Max Current: 19 A
Self-Priming: Yes
Suction Lift: 8'
Thermal Protection: Yes
Discharge Head: 37'
Max Operating Pressure: 16 PSI
Operating Temperature: -15 to 150°F
Inlet: 1 in / Female / NPT
Outlet: 1 in / Female / NPT
Mounting: 2 in / NPT / Bung Mount
Strainer Mesh: 20x20 micron
Dimensions (H x W x D): 8.4 x 13.7 x 6.5
Weight: 32.2
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. 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
Small Pump Full Rebuild Kit Installation
Fill-Rite's official walkthrough for the Small Pump full rebuild kits, KIT120RKG and KIT120RKG2. Fill-Rite lists these kits for the FR1200, FR2400, FR4200, FR4400, FR600, SD1200, and SD600 series, which is the family this pump belongs to.
The steps run the whole rebuild: disassembling the rotor and shaft seal, replacing the shaft seal, replacing the rotor, rotor key, vanes and cover gasket, and disassembling and replacing the bypass valve.
Small Pump Rotor And Vane Replacement
Fill-Rite's official walkthrough for replacing the rotor and vanes on a Small Pump using KIT120RGG2 and KIT120VG. Fill-Rite lists this rotary group kit for the FR1200, FR2400, FR4200, FR4400, FR600, SD1200, and SD600 series.
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.
Small Pump Shaft Seal Kit Installation
Fill-Rite's official walkthrough for the Small Pump shaft seal kit, KIT120SL, 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.
Small Pump Full Rebuild Kit Installation
Fill-Rite's official walkthrough for the Small Pump full rebuild kits, KIT120RKG and KIT120RKG2. Fill-Rite lists these kits for the FR1200, FR2400, FR4200, FR4400, FR600, SD1200, and SD600 series, which is the family this pump belongs to.
The steps run the whole rebuild: disassembling the rotor and shaft seal, replacing the shaft seal, replacing the rotor, rotor key, vanes and cover gasket, and disassembling and replacing the bypass valve.
Small Pump Rotor And Vane Replacement
Fill-Rite's official walkthrough for replacing the rotor and vanes on a Small Pump using KIT120RGG2 and KIT120VG. Fill-Rite lists this rotary group kit for the FR1200, FR2400, FR4200, FR4400, FR600, SD1200, and SD600 series.
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.
Small Pump Shaft Seal Kit Installation
Fill-Rite's official walkthrough for the Small Pump shaft seal kit, KIT120SL, 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, gasoline (up to E15), kerosene, and biodiesel. It is not compatible with DEF, water, or high-concentration ethanol/methanol.
How is it powered?
12V DC. Connect it per the included owner's manual.
How fast does it transfer fuel?
20 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
4.9 · 13 reviews
5★124★13★02★01★0
Cotton
Verified
08/21/2026
Priced reasonable
Great price for pump
Matthias flick
Verified
08/06/2026
Great product
Works great and use it for commercial everyday use!
Country side
Verified
07/05/2026
Fuel pump
Great long lasting pump
Will
Verified
09/22/2025
The pump came before it was scheduled to come and works great.
The pump came before it was scheduled to come and works great.
Jeffrey M.
07/16/2026
Classic product delivered promptly
This is a well known product that has been around for years. It's well designed and solidly built. No plastic junk. The vendor delivered very promptly.
Stanlake
Verified
07/09/2025
worked well
Purchased this for a replacement, quick and easy to install.
Tk
07/14/2026
Works Great
Our old pump that came with the farm finally broke after we owned it for almost 20 years "no sure how old it was before we owned it". We replaced it with this one and it pumps much faster than the old one. Let's see if its still working 20 years from now.
Anthony I.
07/14/2026
Five Stars
Great pumps have 5 of these for my farming business
Milton B.
07/13/2026
Perfect for the job....
Product arrived ahead of schedule which allowed for installation early. Quality product.
Eduardo D.
07/10/2026
Highly recommend!
Great pump. Performs as described. Has taken a beating in short period of time and still working as it did straight out of the box.
Coffey's F.
07/06/2026
It will pump fuel when you need it to
I love the way it pumps fuel I never new it was so good to grab the nozzle and start pumping without having to work on it.
Big C.
07/04/2026
Best pump you can buy
these are by far the fastest pumping and durable pumps out there for your fuel transfer needs
Mb
07/12/2026
20 gallon per minute fuel pump
Good product for the price. If you're in the market for a fuel pump don't cheap out spend a little more on a good quality product made in the USA. You will not be disappointed with this product, very well-built from heavy quality materials.