The spout is the part of a jerry can you notice most. A good one pours steadily into a small filler without splashing, and a bad one leaves fuel on your hands and down the side of your rig. Every new Wavian 10L and 20L fuel can comes with Wavian's own spout. This guide explains how it works, what it fits, how to keep it sealing, and what to do if you lose or damage one.
The short answer
- It's included. Every new Wavian 10L and 20L steel fuel can ships with the genuine Wavian spout. You don't need to buy one separately.
- How it attaches: a gasketed bayonet closure, not a screw thread. Push it on and twist to lock.
- How it pours: a spring-loaded safety nozzle. Press it to open, and it closes when you let go.
- Where it lives: it clips into the spout holder on the can when you're not using it.
- Fits: Wavian 10L and 20L fuel cans. It does not fit the Wavian 22L water can.
- Lost or broke one? The genuine Wavian replacement spout is in stock in all five colors.
How the Wavian spout works
Wavian cans keep their own closure locked while you travel. To pour, set the can on level ground and open the closure slowly so any pressure from heat bleeds off. Then fit the spout over the opening, press down and twist until the bayonet locks. The gasket on the joint seals it, so fuel goes through the nozzle and not around it.
The nozzle is spring-loaded. It stays shut until you press it to open, and it snaps closed when you release it. That makes it easy to stop the instant a small generator or motorcycle tank is full. When you're done, let the spout drain, remove it, close the can, and clip the spout back into its holder.
For the full fill, store and pour routine, see How to Use a NATO Jerry Can Safely.
Spout colors and part numbers
Wavian makes the spout in five colors to match its cans, so a spout never ends up on the wrong fuel. All five are available as a replacement spout:
| Spout color | Wavian part no. | Use with |
|---|---|---|
| Red | 3101 | Red gasoline cans |
| Yellow | 3103 | Yellow diesel cans |
| Blue | 3104 | Blue kerosene cans |
| Olive Drab | 3100 | OD Green cans |
| Black | 3102 | Black cans |
Keep one spout per fuel. A spout that has carried diesel shouldn't go into a gasoline tank. For more on matching colors to fuels, see Jerry Can Color Codes Explained.
Will it fit other NATO jerry cans?
Wavian's spout is made for Wavian 10L and 20L fuel cans, and that's the only fit we confirm. Many cans copy the NATO look without matching Wavian's opening and gasket dimensions, so a spout that seems to fit may not seal. If you have another brand's can, ask us before you buy a spare, and include a photo of the opening.
CARB-compliant vs non-CARB spouts
Wavian cans are EPA and CARB compliant as supplied, with their spout system. The spring-loaded safety nozzle is part of what makes the setup compliant.
You'll also see "non-CARB" spouts for sale: open or vented spouts with no automatic shutoff that pour faster. In California and other states that follow CARB rules, switching to a non-compliant spout can make your fuel can setup non-compliant. Check your local rules before you swap. For most users the included safety spout is the right choice. It closes on its own, so it also stops vapor and drips between pours.
Gasket care: the key to a drip-free pour
Most "my spout leaks" problems are gasket problems. Before each trip:
- Look at the gaskets on the can's closure and on the spout joint. They should be soft, unbroken and seated evenly in their grooves.
- Wipe off grit. A grain of sand on the gasket is enough to break the seal.
- Replace a gasket that's cracked, flattened, swollen or hard. A fuel smell around a closed can, or wetness at the joint while you pour, are the usual warning signs.
- Don't force the bayonet. If it won't lock, the gasket is probably out of its groove. Reseat it and try again.
Need a gasket for a Wavian can? Ask us with the can size and color, and we'll confirm the right part.
Troubleshooting
Fuel leaks at the joint while pouring
The bayonet isn't fully locked or the gasket isn't seated. Stop, remove the spout, check and reseat the gasket, then lock it again until it's tight.
The nozzle won't open, or flow is slow
The safety nozzle only opens when you press it. Keep steady pressure on it while you pour, and keep the can tilted so the outlet stays below the fuel level. Open the can's closure slowly first to equalize pressure. A can that's been sitting in the sun pours unevenly until the pressure bleeds off.
The nozzle won't fit my vehicle's filler
Many newer vehicles have capless fillers that only open for a pump-sized nozzle. Use the funnel that came with your vehicle, or one made for capless fillers, between the spout and the filler.
It drips after I stop pouring
Hold the spout over the filler for a few seconds so it drains before you pull it out. Fuel left in the spout tube will drip otherwise.
Need a spare?
A spare spout in the glovebox is cheap insurance, because a can without one is very hard to pour from. The genuine Wavian replacement spout comes in all five colors (red, yellow, blue, olive drab and black) and fits Wavian 10L and 20L fuel cans. Pick the color that matches your can. If you're buying a new can, the spout is already included.
FAQ
Does the Wavian jerry can come with a spout?
Yes. Every new Wavian 10L and 20L fuel can ships with the genuine Wavian spout system.
Can I buy a replacement Wavian spout?
Yes. We stock the genuine Wavian replacement spout in all five can colors. It fits Wavian 10L and 20L fuel cans.
What is the best spout for a Wavian jerry can?
The genuine Wavian spout. It's made for the can's opening and gasket, it keeps the setup EPA and CARB compliant, and the spring-loaded nozzle shuts off the moment you let go.
Does the Wavian spout fit the Wavian water can?
No. The fuel spout fits Wavian 10L and 20L fuel cans, not the 22L water can. The Wavian 22L water can comes with its own detachable easy-pour spout.
Where do I keep the spout when I'm not using it?
Clip it into the spout holder on the can. That keeps it clean and on hand.
Can I use one spout for gas and diesel?
It's better not to. Use a spout that matches each can's color, and keep each one on a single fuel.
Related guides: Best Jerry Can for Overlanding · Best Gas Can for an RV Generator · How to Use a NATO Jerry Can Safely · Wavian 20L Review
Shop the parts in this guide
- Wavian Replacement Jerry Can Spout for 10L & 20L NATO Cans
- Wavian 20L NATO Steel Jerry Can, Red (5.3 Gal), spout included
- Wavian 20L NATO Steel Jerry Can, Yellow (5.3 Gal), spout included
- Wavian 20L NATO Steel Jerry Can, OD Green (5.3 Gal), spout included
- Wavian 10L NATO Steel Jerry Can, Red (2.6 Gal), spout included
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