- +Dual 200 PSI compressors and a 5-gallon tank for $419.37 — a combination usually found only in $800-plus kits
- +Stainless-steel trumpets rather than the zinc alloy on Vevor's cheapest quad kits
- +Tank ships with gauge, drain valve and safety relief valve already installed
- +Relays, fuse holders and a horn button are shown in the kit, unlike Vevor's smaller kits
- +Full tank, compressor and trumpet dimensions published for fitment planning
- +12-month Vevor warranty plus 30-day returns and 90-day defect returns
- −170 dB claim has no test distance and exceeds the 149.4 dB at 3 ft HornBlasters reports for the loudest locomotive horn it has tested
- −No compressor model, wattage, amp draw or duty cycle published
- −Weight and chord frequencies not listed
- −Zero customer reviews on vevor.com — no owner reliability data
- −Page structured data flags the product as discontinued while Buy Now still works, so stock is uncertain
- −Parts list is just "1 × Air Horn Kit" — contents must be inferred from photos
Methodology
This review aggregates publicly available information from manufacturer specifications, retailer listings, and verified user reviews. We do not perform hands-on testing. Last reviewed: September 15, 2026. Every spec below comes from Vevor’s official US product page for SKU LBYSJF18L3DSB2001M2, cross-checked against Vevor’s published warranty and return policy and the product gallery on the same page. Because this listing has no customer reviews yet, there is no owner feedback to aggregate. All sources are listed at the end of the article.
Quick verdict
This is the biggest air system Vevor sells under a train-horn banner: two 200 PSI compressors, a 5-gallon tank, three stainless trumpets and $419.37 out the door. On paper the hardware is a class above Vevor’s usual sub-$170 quad kits, and the dual-compressor layout is genuinely rare at this price. The problem is the headline. Vevor advertises 170 dB with no test distance, which is roughly 20 dB louder than the loudest locomotive horn HornBlasters has ever metered at 3 feet, so the number is marketing, not measurement. Add zero customer reviews, a structured-data flag that lists the product as discontinued while the Buy Now button still works, and no published compressor model, duty cycle or amp draw, and we land on 3.4/5: a lot of air for the money, sold with the least credible loudness claim in Vevor’s lineup.
What it is
The Vevor Super Loud Train Air Horn Kit is a complete, tank-fed 3-trumpet system aimed at truck, RV and boat owners who want long, repeated blasts rather than the two-second honk a 1-gallon kit delivers. It is the top of Vevor’s train-horn range by air capacity and price, sitting above the 4-trumpet 2.6-gallon kit and the entry-level 4-trumpet kit we have already covered. See our Vevor brand hub for every Vevor horn on the site.
The format is the classic three-piece budget layout: a trumpet cluster on a steel base with a 12V solenoid valve on the manifold, a separate 5-gallon steel tank with gauge, and two compressors that each feed the tank through a stainless braided leader hose. Vevor lists it for trucks, cars, SUVs and boats, but with a tank nearly two feet long and two compressors to mount, this is realistically a pickup-bed, RV-bay or workboat install.

Specifications
All values are from Vevor’s product page unless noted. Vevor publishes no chord frequencies, no compressor model number, no duty cycle, no amp draw and no shipping weight for this kit.
| Spec | Value |
|---|---|
| Sound output | 170 dB (test distance not disclosed) |
| Trumpets | 3, stainless steel, 16.5 in (42 cm) and 14.5 in (37 cm) |
| Trumpet assembly size | 19.25 × 18 × 7.5 in (49 × 46 × 19 cm) |
| Compressors | 2, rated 200 PSI max each; pump shuts off above 200 PSI and restarts when pressure drops |
| Compressor size | 11.4 × 4 × 7.5 in (29 × 10.5 × 19 cm) each |
| Tank | 5 gal / 18 L, carbon steel, 21 × 8.7 × 10.6 in (53 × 22 × 27 cm) |
| Voltage | 12V |
| Materials | Stainless steel trumpets, carbon steel body and tank |
| Color | Silver trumpets, black tank |
| Weight | Not listed |
| Price | $419.37 (vevor.com, Sep 15, 2026) |
| Warranty | 12-month manufacturer’s warranty (Vevor US policy); 30-day returns; 90-day returns for defects |
| Customer reviews | 0 on vevor.com at time of review |
- Air capacity
- 5 gal / 18 L, largest in Vevor’s train-horn range
- Compressors
- Two, 200 PSI max each
- Trumpets
- 3 stainless, two lengths
- dB claim
- 170 dB, no distance given

What’s in the box
Vevor’s package list is minimal: “1 × Air Horn Kit, 1 × User Manual.” The product gallery shows what that kit contains in practice, and it is more complete on the electrical side than Vevor’s smaller kits.
- Three stainless trumpets pre-mounted on a steel base with a 12V solenoid valve on the manifold
- 5-gallon black steel tank with pressure gauge, drain valve, pull-ring safety valve and mounting feet
- Two 200 PSI compressors, each with a stainless braided leader hose and pre-wired leads
- Three automotive relays (one visibly labeled 12V 60A), three inline fuse holders and a push-button horn switch
- Coil of black air line, brass fittings, thread-seal tape, mounting bracket and assorted bolts, nuts and washers
- User manual
One thing the gallery does not clearly show is any main power wire beyond the short pigtails. Vevor’s feature text says the pump “will automatically shut down” above 200 PSI, which implies a switch or an integrated cut-off, but no part is called out. Budget for heavy-gauge power wire from the battery either way.

Pros
- Dual 200 PSI compressors and a 5-gallon tank at $419.37, a combination usually found only in $800-plus kits
- Stainless-steel trumpets rather than the zinc alloy used on Vevor’s cheapest quad kits
- Tank ships with gauge, drain valve and safety relief valve already installed, per the product gallery
- Relays, fuse holders and a horn button are shown in the kit, where Vevor’s smaller kits list the power switch and cord as not included
- Full physical dimensions for tank, compressor and trumpet assembly are published, which makes fitment planning straightforward
- Covered by Vevor’s standard 12-month warranty plus 30-day returns and 90-day defect returns
Cons
- 170 dB claim has no test distance and exceeds the 149.4 dB at 3 feet that HornBlasters reports for the loudest locomotive horn it has tested
- No compressor model, wattage, amp draw or duty cycle published, so you cannot size wiring or estimate refill time from the listing
- Weight not listed, and no chord frequencies for the three trumpets
- Zero customer reviews on vevor.com, so there is no owner reliability data at all
- Page structured data marks availability as “Discontinued” while the listing still shows Buy Now, so stock status is uncertain
- Parts list is just “1 × Air Horn Kit,” leaving buyers to infer contents from photos
The 170 dB claim, in context
Vevor prints “170DB” in its spec table and repeats it in the feature bullets, but never says where the meter was. Our advertised-vs-real decibel guide explains why that matters: sound pressure falls by about 6 dB every time distance doubles, so a number without a distance is not comparable to anything. HornBlasters, which publishes its own comparative tests, says the Nathan K5 locomotive horn is the loudest it has ever measured at 149.4 dB at 3 feet, calls 150-plus dB claims for vehicle horns “physically impossible,” and notes that 194 dB is the theoretical limit of undistorted sound in air. Our editorial read is that a 3-trumpet kit of this type will meter somewhere in the mid-130s to mid-140s at 3 feet, in line with the Viking Horns V103C-6-12/311-1B, which makes the same 170 dB claim with similar hardware. That is still far louder than any factory car horn. It is just not 170 dB.
Alternatives
- Viking Horns V103C-6-12/311-1B — the closest match: 3 trumpets, 5-gallon tank, 200 PSI compressor and the identical 170 dB claim. Better-known plumbing spec, but Viking’s own website has been unreliable and its Amazon ratings are mixed.
- Vevor 4-Trumpet 160 PSI 2.6-Gallon Kit — Vevor’s own step-down at about $168: one compressor, half the tank, four trumpets and a 150 dB claim. The sensible pick if you do not need repeated long blasts.
- HornBlasters Conductor’s Special 544 — the 5-gallon benchmark at about $1,050: Shocker XL horns, a HornBlasters HB-1NM compressor and a lifetime horn warranty. Two and a half times the price, but every number is disclosed.
For a broader comparison of budget brands, see our Vevor vs Vixen vs Viking guide.
Install / compatibility notes

- Find 21 inches of flat space for the tank. At 21 × 8.7 × 10.6 in with feet, it fits a pickup bed, under-bed cross-member, RV compartment or boat lazarette. It will not fit most passenger-car trunks with the trumpets alongside.
- Mount both compressors high and dry. Each is 11.4 in long. The braided leader hoses are short, so both units need to sit within a foot or so of the tank ports. Our mounting location guide covers the usual spots.
- Run proper power. Two compressors mean two relays and two fused feeds from the battery. Vevor does not publish amp draw, so size wire for a typical 200 PSI compressor class using our amp draw and fuse guide and the relay wiring guide.
- Plumb the trumpets. The solenoid valve sits on the trumpet manifold. Run the supplied air line from a tank port to the valve, using thread tape on every fitting. Longer lines soften the attack; see our air line size guide.
- Wire the horn button. The third relay is for the solenoid. Trigger it from the included push button or from the factory horn circuit as described in our activation options guide.
- Bench test before final mounting. Fill the tank, listen for leaks, confirm the compressors cut off, and check the safety valve. Our first-fill checklist walks through it.
Vehicle notes. Any 12V vehicle can run this kit, but 24V trucks and equipment need a converter. The 5-gallon tank also works as onboard air for tires and tools with an added coupler, which is one of the few real advantages of paying for this much capacity. Check local rules before your first blast; our state legality pages and city noise ordinance guide explain where train horns on road vehicles are restricted.
Sources
- Vevor — Super Loud Train Air Horn Kit 3 Trumpet with Dual 200 PSI Air Compressors (SKU LBYSJF18L3DSB2001M2) — all specs (170 dB, 200 PSI, 5 gal / 18 L, dimensions, materials, 12V), $419.37 price, package list, feature text, zero reviews, product gallery, structured-data availability flag and 30-day return note
- Vevor — Warranty, Return & Refund Policy — 12-month manufacturer’s warranty, 30-day return window, 90-day defect returns
- HornBlasters — Why fake decibel ratings mislead buyers — 149.4 dB at 3 ft for the Nathan K5, position that 150-plus dB vehicle-horn claims are physically impossible, 194 dB atmospheric limit
- Amazon — Viking Horns 170dB 3 Trumpet Train Horn Kit V103C-6-12/311-1B — competing 3-trumpet, 5-gallon, 200 PSI kit carrying the same 170 dB claim, mixed Amazon ratings
- HornBlasters — Conductor’s Special 544 Train Horn Kit — $1,049.98 price, Shocker XL horns, HB-1NM compressor, lifetime horn warranty
- Vevor — Train Horns Kit 4 Trumpet 160 PSI 2.6 Gal Tank — $167.90 price, 150 dB claim, zinc alloy construction, power switch and cord not included
- Vevor — Train Horn Kit category — Vevor’s current train-horn lineup, tank sizes and prices of the quad kits
Train Horn Hub aggregates publicly available data. We do not test products in-house. All trademarks belong to their respective owners.
The right pick for a truck, RV or boat owner who wants Vevor's most air — two 200 PSI compressors and a 5-gallon tank — for about $420 and can ignore the 170 dB marketing number. Buyers who need documented output, published compressor specs or owner feedback should look at a HornBlasters 5-gallon kit instead.
Frequently asked questions
Quick answers to the questions people ask most about this topic.
- Is the Vevor 3-trumpet kit really 170 dB?
- No. Vevor advertises 170 dB with no test distance, and HornBlasters' published testing puts the loudest locomotive horn it has ever measured at 149.4 dB at 3 feet. Treat the number as marketing; a 3-trumpet kit of this type realistically meters in the mid-130s to mid-140s at 3 feet, which is still far louder than any factory horn.
- Why does this Vevor kit have two compressors?
- Two 200 PSI compressors refill the 5-gallon (18 L) tank faster than one, so you can blast repeatedly without waiting. Vevor does not publish the compressors' model, wattage or duty cycle, so plan wiring as you would for two full-size 200 PSI units with separate relays and fuses.
- What does the Vevor 3-trumpet dual-compressor kit cost and is it in stock?
- Vevor lists it at $419.37 as of September 15, 2026. The page still shows a Buy Now button, but its structured data marks availability as discontinued, so confirm stock with Vevor before ordering.
- Does the kit include wiring and a horn button?
- Vevor's package list only says "1 × Air Horn Kit" and a manual, but the product gallery shows three relays, three inline fuse holders, a push-button horn switch, air line, brass fittings, thread tape and mounting hardware. Heavy-gauge battery wire is not shown, so budget for that.
- What warranty does Vevor give on this train horn kit?
- Vevor US backs its products with a standard 12-month manufacturer's warranty, accepts returns within 30 days of delivery, and accepts returns for manufacturing defects within 90 days. Optional paid 1-, 2- or 3-year protection plans are also offered.





