DEF at the
pump.
Not in a box.
Find gas stations and truck stops with a working bulk DEF dispenser near you — in a lane your truck actually fits. Stop overpaying for jugs.
Find DEF pumps in your state
Three taps from
"where?" to "filled."
Search where you are
Drop in a city, ZIP, or highway exit. We map every bulk DEF dispenser nearby — not the jug shelf at the parts counter.
Check the status
See lane type, price per gallon, and whether it was confirmed working by a driver who just filled up. No more bagged-off pumps.
Skip the jugs
Bulk DEF at the pump runs 70–80% cheaper than boxed jugs. Fill up fresh and get back on the road.
The pump beats the box.
Every fill.
Jugs run $9–14 a gallon and leave you a stack of empties. Bulk DEF off the pump is roughly a third of the price, measured to the tenth, no funnel, no spill.
No pump on your route?
Bulk wins every time you can find a pump. For the stretches where you can't, keep a jug and a spill-free transfer pump in the bed.
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BlueDEF Diesel Exhaust Fluid, 2.5 Gallon (2-Pack)
- API certified, meets ISO 22241
- 32.5% urea, 67.5% deionized water
- One for the truck, one for the shop
Price as of Sep 6, 2026
TERA PUMP Battery-Powered DEF Transfer Pump
- Auto-stop sensor prevents overfills
- No hoisting jugs at the filler neck
- DEF-safe, fits most 2.5-gal jugs
Price as of Sep 6, 2026
DEF Refractometer
- Verifies 32.5% urea concentration
- Results in seconds from a few drops
- Protects your SCR system
Price as of Sep 6, 2026
BlueDEF Diesel Exhaust Fluid, 2.5 Gallon (6-Pack)
- Six 2.5-gallon jugs per case
- API certified, meets ISO 22241
- For heavy haulers and small fleets
Price as of Sep 6, 2026
TeraPump Rechargeable Liquid Transfer Pump
- Rechargeable, up to 80 gal per charge
- 3.2 GPM with 60-inch hose
- Handles DEF, diesel, and water
Price as of Sep 6, 2026
TERA PUMP DEF Electric Drum Pump Kit
- Fits 15 to 55-gallon drums
- 4.2 GPM, 12V DC power
- Makes bulk DEF pricing practical
Price as of Sep 6, 2026
Know a pump we're missing?
The map starts from chain data. Drivers make it worth trusting: add a pump we've missed, or confirm one you've used, and the next RV, boat, or work truck rolls in knowing it's up.