Viking Horns Train Horns
Aftermarket train horn kit brand best known for advertising 149–172 dB output figures. The dB claims are physically implausible — real Nathan K5LA tops out at 149 dB. Realistic Viking output is closer to 135–145 dB.
About Viking Horns
Viking Horns is an aftermarket air horn brand sold primarily on Amazon, Walmart, and through specialty distributors. The product line covers single-, dual-, triple-, and quad-trumpet kits, all bundled with air compressors and tanks ranging from 1.5 to 5 gallons. Pricing is mid-tier ($150–$400 for complete kits).
Viking is best known in the aftermarket community for advertising 149 dB, 152 dB, 162 dB, and even 170 dB output figures across its lineup. These claims should be treated with significant skepticism — see "Output reality check" below.
Viking Horns models
- V101C-3 (chrome) / V101C-3/4008B (black) — 4 trumpet, 149 dB advertised, 1.5-gallon tank, 150 PSI compressor (Amazon chrome / Amazon black)
- V103C-5/310 — 4 trumpet chrome, 162 dB advertised, 3-gallon tank, 200 PSI compressor (Amazon)
- V103C-5/311-1B — 3 trumpet black, 152 dB advertised, 3-gallon tank, 200 PSI compressor (Amazon)
- V103C-6-12/311-1B — 3 trumpet black, 170 dB advertised, 5-gallon tank, 200 PSI compressor, 100% duty cycle (Amazon)
- V621K — dual trumpet kit, smaller install (user install review)
Output reality check
Viking's published dB claims do not match physics or independent measurements. Quick sanity check:
- Nathan K5LA — real cast aluminum locomotive horn at 125 PSI = 149 dB at the source
- Viking V103C-6-12 — claims 170 dB. That's a 21 dB margin over a real Nathan K5LA. 21 dB is ~125× louder. This isn't physically achievable from a 5-gallon tank + 200 PSI consumer compressor + zinc/aluminum trumpets. The Saturn V rocket launch was ~204 dB. A jet engine at 100 ft is ~140 dB. The claim is obviously inflated.
- Viking V103C-5/310 — claims 162 dB. Same problem; this would beat the Nathan K5 by 13 dB / 20× louder.
- Viking V101C-3 — claims 149 dB. Matches Nathan K5LA spec, which is plausible if measured at the source under ideal conditions but unlikely from a $200 consumer kit.
Realistic Viking Horns output based on tank/compressor specs and YouTube user-posted measurements:
- V101C-3 (1.5 gal / 150 PSI) — ~135–140 dB at 3 ft realistic
- V103C-5/310 (3 gal / 200 PSI) — ~140–145 dB at 3 ft realistic
- V103C-6-12 (5 gal / 200 PSI) — ~142–146 dB at 3 ft realistic — louder than the smaller kits but nowhere near 170 dB
- V621K dual — ~125–130 dB realistic
These realistic figures are still loud — comparable to Wolo Dragon Express 854 (~138 dB) or Vevor 4-trumpet (~135 dB). Viking horns aren't bad products at this output range; the dB claims are just dramatically inflated.
Why aftermarket buyers pick Viking
- Mid-tier pricing. $150–$400 for a "loud" complete kit hits the sweet spot for buyers who don't want a $80 Vevor or a $1,500 HornBlasters.
- Tank options. 1.5 gal / 3 gal / 5 gal complete kits available — pick based on intended use frequency.
- 200 PSI / 100% duty cycle compressor on the larger kits — better than 150 PSI / 30% duty cycle on cheaper kits, supports more sustained horn use.
- Amazon Prime availability. Most models ship with 2-day shipping and Amazon return protection.
- Visual aesthetics. Chrome and black trumpet variants — visually similar to HornBlasters Shocker XL at a fraction of the price.
Viking Horns vs. competitors
| Feature | Viking V103C-6-12 | HornBlasters Shocker XL Kit | Vevor 6-Trumpet |
|---|---|---|---|
| Output (advertised) | 170 dB | 147.7 dB at 3 ft | 150 dB |
| Output (realistic) | ~142–146 dB | 147.7 dB at 3 ft (verified) | ~138 dB |
| Tank | 5 gal | 5 gal | 1.5–3 gal typical |
| Compressor | 200 PSI / 100% duty | Viair 444C (200 PSI) | 120–150 PSI |
| Price (complete) | $300–$400 | $1,800–$2,200 | $150–$200 |
Viking's V103C-6-12 at $300–$400 with a 5-gallon tank and 100% duty cycle compressor is genuinely competitive with HornBlasters in air-system specs. The trumpet quality and acoustic engineering are inferior to HornBlasters' Shocker XL, but for 3× cheaper Viking is a viable budget alternative.
Where to buy
- Viking-horns.com — direct sales
- Amazon — most popular; Prime shipping; Amazon return protection
- Walmart (online)
- Superior Horns (specialty distributor)
Related pages
Sources
- Viking-horns.com — manufacturer site
- Amazon — V101C-3/4008B (149 dB claim)
- Amazon — V101C-3/4008 chrome
- Amazon — V103C-5/310 (162 dB claim)
- Amazon — V103C-5/311-1B (152 dB claim)
- Amazon — V103C-6-12 (170 dB claim)
- User install review of V621K
- Walmart — Viking 4-trumpet kit
We do not perform hands-on testing — see our methodology. The 170 dB / 162 dB / 152 dB / 149 dB advertised claims are not physically plausible for consumer-grade aftermarket kits — real Nathan K5LA cast aluminum locomotive horns top out at 149 dB. Realistic Viking output is in the 135–146 dB range based on tank/compressor specs. Treat advertised dB figures as marketing, not engineering.