Fire Extinguisher Mounting Brackets for a Food Truck
Fire extinguisher brackets for a food truck, matched to cylinder size and road vibration, with sourced NFPA 10 and 49 CFR 393.95 mounting rules.
By FranchiseFeast EditorialPublished July 16, 2026
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A fire extinguisher bolted to a wall hook is not mounted the way a vehicle needs it mounted, and most sellers of a “food truck fire extinguisher bracket” don’t say which one you’re buying. This guide treats the bracket, not just the extinguisher, as the purchase decision: which bracket fits which cylinder, what a vehicle mount resists that a wall hook doesn’t, and what three publishing jurisdictions require.
Every spec below comes from a manufacturer page, a bracket reference chart, or a fetched government or fire-department document, not hands-on testing; unconfirmed claims are flagged rather than stated as fact. No price appears here; check the current price on Amazon through each link.
Who this is for, and who should skip it
This is for an operator who owns, or is about to buy, a portable fire extinguisher and needs it mounted so it stays put on a moving vehicle, not for someone shopping for a first extinguisher with no idea what rating they need. If that’s you, read the jurisdiction section below first; that number isn’t this article’s to set.
Skip it if you run a stationary storefront with no vehicle component; your local fixed-commercial fire code and a standard wall bracket apply instead. Same if your rig is really a food boat with an enclosed engine compartment, a different hazard and a marine fire-safety supplier’s problem to solve, not this guide’s.
What actually determines the right bracket?
Search “fire extinguisher mounting bracket food truck” and you get distributor pages with zero buying guidance, or fire-safety blogs that cover Class K and NFPA 96 but never mention the bracket hardware. The answer is cylinder diameter, not the weight number on the label:
| Cylinder diameter | Typical extinguisher | Bracket family | Mount type |
|---|---|---|---|
| ~4.25 in | 5 lb ABC dry chemical | Amerex 818 | Single-strap steel cradle |
| ~4.25 in | 5 lb ABC dry chemical | Amerex 818S | Double-strap steel cradle |
| 5 to 5.25 in | 10 lb ABC dry chemical | Amerex 809 | Strap-and-cradle steel box |
| 7 in | 20 lb ABC dry chemical | Amerex 810 | Strap-and-cradle steel box |
| 7 in | 6-liter Class K wet chemical | Amerex 810 | Strap-and-cradle steel box |
That last row is what nobody else’s buying guide surfaces: a 20 lb ABC extinguisher and a 6-liter Class K unit share the same 7 inch cylinder, so one Amerex 810 bracket carries either. Amerex’s own documentation lists the ABC line and Class K models B260/B262 as 810-compatible (Amerex has since renamed B260 to C260, the model sold today, which shares the same 7 inch cylinder), so running both means one bracket spec, not two.
Why the stock wall hook doesn’t count as a vehicle mount
Most extinguishers, including the Amerex B500 below, ship with a stamped-metal wall hook built for a stationary wall, confirmed on the manufacturer’s own listing, which sells the hook and the vehicle bracket as two separate products.
Federal rule 49 CFR 393.95 spells out what a real vehicle mount has to do: the extinguisher “must be securely mounted to prevent sliding, rolling, or vertical movement relative to the motor vehicle” and stay “readily accessible for use.” A hook that lifts straight off doesn’t meet that language, which is why Amerex and every vehicle-market manufacturer sells a separate box-and-strap bracket line. The same rule sets the rating floor: one unit rated UL 5-B:C or higher (or two rated 4-B:C), and 10-B:C for placarded hazmat loads, generally lower than your local food-truck fire code, covered next.
How much fire suppression does your jurisdiction actually require?
There’s no single national number, and treating one as gospel under-equips a truck fast. Three currently-published, independently fetched sources show a real spread:
| Jurisdiction | Minimum rating | Class K required? | Inspection |
|---|---|---|---|
| Longview, TX Fire Department | 2A10BC | Yes, if the unit has an oil/grease fryer | Annual, by a Texas-licensed company |
| River Forest, IL Fire Department | 4A:60B:C | Yes, additional unit where a hood suppression system is installed | Annual, by a qualified technician |
| Groveland, FL special-event rules (Mar. 2025) | 4-A:80-B-C | Not separately specified; deep fryers banned under event tents | Certified extinguisher required before the vendor fee is even accepted |
That’s a 3 to 4x spread on the B:C number across three currently-effective documents. Groveland’s rule is an event organizer’s requirement, not a standing fire code, and that distinction matters: a market can require more than your home jurisdiction’s baseline. Verify the actual number with your fire marshal or organizer rather than assuming any figure here applies to you.
Frying pushes the answer toward carrying both an ABC and a Class K unit. Dry chemical ABC agent isn’t rated for hot grease and can splash it instead of smothering it; Class K’s wet, potassium-acetate agent discharges as a fine mist built to avoid that. Longview requires Class K atop its 2A10BC minimum for any fryer-equipped truck; River Forest requires it wherever a hood suppression system is installed, and neither exempts occasional frying. Propane swings the same way: NFPA’s model LPG cap runs up to 200 lb, Longview caps cylinders at 100 lb, River Forest caps total truck propane at 40 lb, so check that limit locally too.
The picks
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The one bracket that covers both a 20 lb ABC unit and a 6L Class K unit
Amerex 810 Heavy-Duty Vehicle Bracket (7 in cylinder)
- Cylinder fit
- 7" diameter, fits 20 lb ABC or 6-liter Class K units
- Dimensions
- 9.375"W x 7.125"D x 13.5"H
- Material
- Steel, powder-coated, UL salt-spray tested (ASTM B117, 240 hr)
The fleet-standard steel box bracket; Amerex lists Class K models B260/B262 as compatible (renamed C260 today, same 7 inch cylinder), so one spec covers both your ABC and fryer unit. Downside: bolt-mounted, so extraction under panic is a two-hand cradle-and-slide, not a strap-yank.
Specs: Amerex bracket reference chart and distributor product page
Purpose-matched mount for the compact 5 lb ABC unit
Amerex 818 Steel Vehicle Bracket (5 lb, single strap)
- Cylinder fit
- 4.25" diameter, fits 5 lb ABC extinguishers
- Material
- Steel, primed and powder-coated, UL salt-spray rated
- Rating family
- Vehicle, marine, and aviation-rated single-strap design
Sized for the B500 below; its steel strap-and-cradle beats the stock wall hook by a wide margin. Catch: it's a single strap, and Amerex sells an upgrade for routes rough enough to worry about rattling loose.
Specs: Distributor product listings and Amerex bracket reference chart
The higher-vibration upgrade over the single-strap 818
Amerex 818S Double-Strap Vehicle/Marine/Aviation Bracket (5 lb)
- Cylinder fit
- 4.25" diameter, same 5 lb class as the 818
- Strap count
- Two straps versus one on the base 818
- Certification
- UL salt-spray rated, marketed for vehicle, marine, and aviation use
The second strap is Amerex's own engineered answer to road vibration, not an aftermarket fix, so it's the more defensible buy for daily rough routes. Costs a bit more than the single-strap 818 for the same footprint; otherwise no real downside.
Specs: Amerex bracket reference chart, listed alongside the 818 in the same family
The general-purpose extinguisher most of these brackets are sized for
Amerex B500 5 lb ABC Dry Chemical Fire Extinguisher
- UL/ULC rating
- 2A:10B:C
- Dimensions
- 15.25"H x 7.25"W x 4.25"D
- Discharge
- 14 seconds, 12 to 18 ft range
A recognized, rechargeable brand whose 2A:10B:C rating clears Longview's 2A10BC floor. It ships with a stamped wall hook, not a vehicle bracket, though, so budget for the 818 or 818S separately.
Specs: Amerex manufacturer product page
The fryer-specific unit most jurisdictions require alongside your ABC extinguisher
Amerex C260 Class K Wet Chemical Fire Extinguisher, 6 Liter
- UL rating
- 2A:K, tested per ANSI/UL711 for commercial deep-fat fryers
- Capacity
- 6 liters, ~22.5 lb shipping weight
- Agent
- Potassium-acetate wet chemical, fine-mist discharge, ~53 second discharge
A real UL 711 fryer-specific listing, not a relabeled ABC unit; the fine-mist discharge genuinely cuts grease flare-back versus a dry chemical stream. Heavier than a 5 lb ABC unit and ships with its own wall hanger, so pair it with the Amerex 810 above.
Specs: Manufacturer-sourced distributor product page
Where to mount it, and how often to check it
NFPA 10 caps the top at 5 ft above the floor (3.5 ft over 40 lb), with 4 inches of clearance below, and calls for placement “along normal paths of travel, including exits.” River Forest’s rule makes that concrete, requiring its Class K and ABC combo be “mounted within the egress path,” not tucked behind the cooking line. Class K units still need to stay within roughly 30 ft of the cooking equipment, rarely a conflict on a small truck: mount to the side, near where staff would stand while backing toward the door, not over the fryer.
Check it monthly regardless of mount: NFPA 10 calls for a visual inspection every 30 days by a trained employee, confirming it’s unobstructed, the gauge reads green, the pin and seal are intact, there’s no damage, and it still has heft, since a dry chemical unit can read green while low on powder. Annual service by a certified technician is separate and non-negotiable.
For the rest of your truck’s fire and gas safety setup, see the food truck equipment checklist and the propane leak detector guide, or the propane tank warmer guide for cold-weather service. For the fuller category, start at the cafe equipment hub.
Common questions
What size bracket do I need for my fire extinguisher?
Match by cylinder diameter, not just weight class. A 5 lb ABC unit runs about 4.25 inches across, a 10 lb unit runs 5 to 5.25 inches, and a 20 lb ABC unit or a 6-liter Class K unit both happen to share a 7 inch diameter. Buying 'by weight' alone can hand you the wrong bracket for a Class K unit specifically, so check the cylinder spec against the bracket spec before you order.
Do I really need both a Class K and an ABC extinguisher if I only fry sometimes?
Every source checked here that addresses cooking equipment says yes. Longview, TX requires a Class K unit for any truck using an oil or grease fryer, on top of its general 2A10BC minimum. River Forest, IL requires an additional Class K unit wherever a hood suppression system is installed. Dry chemical ABC agent is not rated for hot grease and can make a grease fire worse by splashing it; wet chemical Class K agent is built to avoid exactly that. None of them carve out an 'occasional fryer' exception, so plan to carry both and confirm with your fire marshal.
Will a strap bracket actually hold up to road vibration, or do I need something heavier?
It depends on how rough your routes are. A single-strap bracket is a real step up from the stamped wall hook the extinguisher ships with, which the federal mounting language in 49 CFR 393.95 (extinguishers must be secured to 'prevent sliding, rolling, or vertical movement') effectively rules out for vehicle use. Amerex itself sells a double-strap version for higher-vibration mounting, and race and off-road-grade quick-release mounts publish an actual G-rating that standard steel-strap bracket listings don't state. A single strap is the floor, not the ceiling, if your truck runs rough roads daily.
Where should I mount the extinguisher, near the door or near the fryer?
Near an exit path, not over or directly behind the cooking line. NFPA 10's general placement logic puts extinguishers 'along normal paths of travel, including exits,' so nobody has to move toward a fire to reach one, and River Forest, IL's food truck rule states its combo units 'shall be mounted within the egress path' in those words. Class K units still need to stay within a real distance of the cooking equipment, so on most trucks this isn't a genuine conflict: mount to the side, near where staff would actually be standing while backing toward the door.
Sources
Every figure above traces to one of these sources (last checked July 16, 2026). Franchise numbers change with each FDD filing year; verify against the current FDD.
- Amerex, official fire extinguisher bracket reference chart (model families, UL salt-spray spec, warranty)
- Amerex, B500 5 lb ABC dry chemical extinguisher product page (UL rating, dimensions, discharge time)
- FMCSA 49 CFR 393.95, via Cornell Law School Legal Information Institute (federal vehicle mounting rule)
- Village of River Forest, IL Fire Department, Mobile Food Truck Requirements (4A:60B:C minimum, egress-path mounting)
- City of Longview, TX Fire Department, Mobile Food Unit Guidelines (2A10BC minimum, Class K for fryers)
- City of Groveland, FL, Special Event Vendor Application and Rules, effective March 2025 (4-A:80-B-C minimum)
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