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2015 GMC Sierra 3500HD Dually Denali Train Horn Install
2015 GMC Sierra 3500HD Dually Denali Train Horn Install
2015 GMC Sierra 3500HD Dually Denali Train Horn Install
2015 GMC Sierra 3500HD Dually Denali Train Horn Install
2015 GMC Sierra 3500HD Dually Denali Train Horn Install
2015 GMC Sierra 3500HD Dually Denali Train Horn Install
2015 GMC Sierra 3500HD Dually Denali Train Horn Install
2015 GMC Sierra 3500HD Dually Denali Train Horn Install

2015 GMC SIERRA 3500HD

Shocker XL Train Horn

SOUND SAMPLE:

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This 2015 GMC Sierra 3500HD Dually Denali, presented by KEG Media at the 2018 SEMA Show, stands as a powerhouse of design, performance, and sheer road presence. Sporting 28" wheels, 40" Fury Tires, and a 12-16" Ultimate Air Ride Suspension Lift, the truck already commands attention, yet it's the Shocker XL Train Horns that elevate it to an entirely new level of dominance.

With its St. Patrick’s Day-themed color scheme, this custom Sierra Dually exudes individuality. But it’s the unmistakable blast of the Shocker XL Train Horns that truly sets it apart—announcing its arrival with a thunderous roar that’s impossible to ignore. Designed for extreme loudness and durability, these horns are the perfect sonic counterpart to the truck’s show-stopping visuals.


Key Features:

  • Shocker XL Train Horns – 147.7 dB of real train horn power

  • Bold Aesthetic Integration – Horns complement the truck’s green-themed show build

  • Custom Suspension & Wheels – 12-16" lift on 28" wheels with 40" tires

  • Built for SEMA – Designed by KEG Media and unveiled at the 2018 SEMA Show

  • Unrivaled Sound – Crisp, powerful tone that mirrors the truck’s aggressive build


READY TO MATCH THIS DENALI'S BOLD STYLE?

Shocker XL train horns deliver authentic locomotive sound that commands attention. Get the same powerful performance with our complete Conductor's Special Train Horn Kits that include everything needed for installation.

UP TO 1500% LOUDER

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UNLIMITED HONKING

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ZERO
DELAY

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CAPABLE ONBOARD AIR SYSTEM

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HornBlasters Shocker S6 544K Nightmare Edition Train Horn Kit

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PRICE

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HornBlasters Shocker S6 544K Nightmare Edition Train Horn Kit

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SPECIFICATIONS

Part Number AH-S4
Voltage 12-Volt DC
Horn Shocker 4 Train Horn Kit
Material High-Impact ABS
Horn Measurements Bell #1 19.50″ (495.30 mm)
Bell #2 16.25″ (412.75 mm)
Bell #3 14.75″ (374.65 mm)
Bell #4 12.75″ (323.85 mm)
Flare 5″ (127 mm)
Weight 4.5 lb (2.04 Kg)
Fitting Size ⅛″ M NPT
Requires 1/2" Port

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Train Horn FAQ

Shocker XL train horns are four-bell train horns made from high-impact fiberglass-reinforced ABS construction. They deliver authentic locomotive sound at 147.7 dB and are designed to be the loudest horns available. The horns feature different bell lengths ranging from 12.75" to 19.50" with 5" flares.

No. Shocker XL horns are sold separately as standalone horns. To power them, you'll need a complete air system. We recommend our Conductor's Special Train Horn Kits which include Shocker XL Train Horns along with the air tank, compressor, and all necessary components.

Shocker XL horns feature four bells with lengths of 19.50", 16.25", 14.75", and 12.75", with 5" flares. They are made from high-impact fiberglass-reinforced ABS and operate at 150 PSI maximum working pressure with an air inlet size of ⅛" M NPT.

Yes. The four bells on Shocker XL horns can be mounted individually or as a complete unit, providing flexibility for different installation configurations and space requirements.

Shocker XL horns are air-powered and work with any standard 12-Volt DC air system. The horns themselves don't require electrical power, but the air compressor system that powers them operates on 12-Volt DC.


Show Us What You’re Working With
Submit your horn install and get featured among the loudest trucks on the road. Click the button below to submit your install photos to our media submission form!

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